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Publication numberCN101896850 B
Publication typeGrant
Application numberCN 200880118070
PCT numberPCT/US2008/084233
Publication date17 Jul 2013
Filing date20 Nov 2008
Priority date4 Dec 2007
Also published asCA2706002A1, CA2706002C, CN101896850A, EP2217960A2, EP2217960B1, US8687281, US9581736, US20090141352, US20140211312, WO2009073388A2, WO2009073388A3
Publication number200880118070.X, CN 101896850 B, CN 101896850B, CN 200880118070, CN-B-101896850, CN101896850 B, CN101896850B, CN200880118070, CN200880118070.X, PCT/2008/84233, PCT/US/2008/084233, PCT/US/2008/84233, PCT/US/8/084233, PCT/US/8/84233, PCT/US2008/084233, PCT/US2008/84233, PCT/US2008084233, PCT/US200884233, PCT/US8/084233, PCT/US8/84233, PCT/US8084233, PCT/US884233
Inventors詹姆士H詹纳德, 艾恩A尼尔
Applicant黑眼睛光学有限公司
Export CitationBiBTeX, EndNote, RefMan
External Links: SIPO, Espacenet
Liquid optics image stabilization system
CN 101896850 B
Abstract  translated from Chinese
一种图像稳定系统,包括多个沿两个光轴对准的透镜元件;以及一个或多个包括第一和第二接触液体的液体透镜单元(70,71),其中接触液体之间的接触光学表面具有可变形状,可变形状关于其自身的光轴是基本对称的,且关于至少一个其他光轴为不对称的;其中多个透镜元件和至少一个液体透镜元件聚集从物侧发出的辐射,并提供图像的稳定。 An image stabilization system, comprising a plurality of lens elements along the optical axis alignment of the two; and one or more liquid comprising a first and a second contact of the liquid lens unit (70, 71), wherein the contact between the contact liquid variable optical surface having a shape, a variable shape on its own axis is substantially symmetrical, and at least one other on the optical axis is asymmetrical; wherein a plurality of lens elements and at least one liquid lens element aggregation emitted from the object side radiation, and to provide a stable image.
Claims(16)  translated from Chinese
1.一种图像稳定系统,包括: 多个透镜元件,沿着至少两个光轴对准;以及至少一个液体透镜单元,其包括第一接触液体和第二接触液体,其中所述接触液体之间的接触光学表面具有可变形状,所述可变形状关于其自身的光轴是基本对称的,其中所述至少一个液体透镜单元相对于所述多个透镜元件偏移,以使得所述可变形状关于至少一个其他光轴是不对称的; 其中所述多个透镜元件和所述至少一个液体透镜单元被配置成聚集从物侧空间发出的辐射,并且为传输至像侧空间的辐射提供至少部分稳定。 An image stabilization system, comprising: a plurality of lens elements, along at least two optical alignment; and at least one liquid lens unit comprising a first and a second contact with the liquid contacting the liquid, wherein the contact of the liquid the contact between the optical surface has a variable shape, the variable shape on its own axis is substantially symmetrical, wherein said at least one liquid lens unit of said plurality of lens elements with respect to the offset, such that said Variable shape of the at least one other axis is asymmetrical; wherein said plurality of lens elements and at least one liquid lens unit is configured to gather radiation emitted from the object side space, and is transmitted to the image side space radiation providing at least partially stabilized.
2.如权利要求1所述的图像稳定系统,进一步包括第二液体透镜单元,其中所述至少一个液体透镜单元和所述第二液体透镜单元被配置成为传输至像侧空间的辐射提供基本稳定。 2. The image stabilization system of claim 1, further comprising a second liquid lens unit, wherein said at least one liquid lens unit and said second liquid lens unit is configured to transmit to the image side space radiation providing stable .
3.如权利要求2所述的图像稳定系统,其中基本稳定是沿直线方向的。 The image stabilization system according to claim 2, wherein the basic stability along a straight line direction.
4.如权利要求2所述的图像稳定系统,其中传输至像侧空间的辐射沿垂直方向为基本稳定的。 The image stabilization system according to claim 2, wherein the radiation transmitted to the image side space in the vertical direction is substantially constant.
5.如权利要求1所述的图像稳定系统,进一步包括至少四个液体透镜单元。 The image stabilization system of claim 1, further comprising at least four of the liquid lens unit.
6.如权利要求5所述的图像稳定系统,其中所述至少四个液体透镜单元被配置成为传输至像侧空间的辐射提供基本稳定。 The image stabilization system according to claim 5, wherein the at least four liquid lens unit is configured to transmit the radiation provided to the image side space stable.
7.如权利要求6所述的图像稳定系统,其中所述基本稳定是多个方向上的。 The image stabilization system according to claim 6, wherein said substantially stable at a plurality of directions.
8.如权利要求6所述的图像稳定系统,其中传输至像侧空间的辐射在所有方向都为基本稳定的。 The image stabilization system according to claim 6, wherein the radiation transmitted to the image side space in all directions are substantially stable.
9.一种图像稳定系统,包括: 多个透镜元件,沿着公共光轴对准;以及至少一个液体透镜单元,其包括第一接触液体和第二接触液体,其中所述接触液体之间的接触光学表面具有可变形状,所述可变形状关于所述液体透镜单元的光轴为基本对称的,其中所述液体透镜单元相对于所述多个透镜元件偏移,以使得所述多个透镜元件的公共光轴不与所述液体透镜单元的光轴对准; 其中沿着公共光轴对准的所述多个透镜元件、以及所述液体透镜元件被布置成聚集从物侧空间发出的辐射,并且为传输至像侧空间的辐射提供稳定。 An image stabilization system, comprising: a plurality of lens elements, aligned along the common optical axis; and at least one liquid lens unit comprising a first and a second contact with the liquid contacting the liquid, wherein the contact between the liquid contact optical surface has a variable shape, the shape of the variable on the optical axis of the liquid lens unit is substantially symmetrical, wherein the liquid lens unit of said plurality of lens elements with respect to offset, so that the plurality of common optical axis of the lens element is not aligned with the optical axis of the liquid lens unit; wherein said plurality of lens elements aligned along a common optical axis, and the liquid lens elements are arranged in aggregates emitted from the object side space radiation, such as radiation and to provide a stable side space for transmission.
10.如权利要求9所述的图像稳定系统,其中所述接触光学表面的形状受到电控制,以为传输至像侧空间的辐射提供稳定。 10. The image stabilization system according to claim 9, wherein the optical shape of the contact surface is electrically controlled, that the radiation transmitted to the image side space to provide stability.
11.如权利要求9所述的图像稳定系统,进一步包括加速度计,以检测至少一个透镜单元的移动。 11. The image stabilization system according to claim 9, further comprising an accelerometer to detect at least one movable lens unit.
12.如权利要求11所述的图像稳定系统,其中所述加速度计所检测到的移动用于控制所述接触液体的可变形状。 12. The image stabilization system of claim 11, wherein movement detected by the accelerometer for controlling the variable shape of the contacting liquid.
13.如权利要求9所述的图像稳定系统,进一步包括激光陀螺仪,以检测至少一个透镜单元的移动。 13. The image stabilization system according to claim 9, further comprising a laser gyro, in order to detect at least one movable lens unit.
14.如权利要求9所述的图像稳定系统,其中传输至像侧空间的辐射为基本稳定的。 14. The image stabilization system according to claim 9, wherein the radiation transmitted to the image side space is substantially stable.
15.如权利要求9所述的图像稳定系统,进一步包括控制系统,所述控制系统被配置成检测照相机的移动镜头运动,其中由于移动镜头运动而引起的像移未得到校正。 15. The image stabilization system according to claim 9, further comprising a control system, the control system is configured to detect movement of the camera lens movement, like the movement of which due to the movement caused by the lens shift has not been corrected.
16.如权利要求9所述的图像稳定系统,其中具有小于2Hz频率的运动是不稳定的。 16. The image stabilization system according to claim 9, wherein the movement has a frequency of less than 2Hz is unstable.
Description  translated from Chinese

液体光学元件图像稳定系统 Liquid optics image stabilization system

[0001] 相关申请 [0001] Related Applications

[0002] 本申请涉及并要求于2007年12月4日提交的、第60/992,284号美国临时申请的权益,其全部内容通过引用并入本文并作为本说明书的一部分。 [0002] This application is related to and claims, No. 60 / 992,284 equity in US Provisional Application December 4, 2007 submission, the entire contents of which are incorporated herein by reference and made a part of this specification.

技术领域 FIELD

[0003] 本发明涉及采用液体光学元件稳定图像的光学透镜系统。 [0003] The present invention relates to a liquid optical element using an optical image stabilization lens system.

背景技术 BACKGROUND

[0004] 光学图像稳定改变透镜中的光路以稳定到达传感器的图像。 [0004] Optical image stabilization lens changing an optical path to stabilize the image reaches the sensor. 例如,将浮动的透镜元件垂直于透镜的光轴移动。 For example, the movement of the floating lens elements vertically to the optical axis of the lens. 可选地,机械图像稳定移动捕获图像的传感器以抵消照相机的运动。 Alternatively, mechanical image stabilization moving captured image sensor to compensate for motion of the camera. 然而,这些图像稳定装置依赖透镜元件或传感器的机械移动。 However, these devices rely on mechanical movement of the image stabilization lens elements or sensors.

发明内容 SUMMARY

[0005] 液体透镜单元可改变光路而不依赖液体单元的机械移动,因此为稳定图像提供振动补偿。 [0005] The liquid lens unit may change the optical path without relying on mechanical means of moving the liquid, thus providing a stable image vibration compensation. 液体透镜单元可与其他沿至少两个光轴对准的透镜单元一起使用。 Liquid lens unit may be used with other along the optical axis alignment of at least two of the lens unit.

[0006] 在一个实施方式中,液体透镜单元包括第一接触液体和第二接触液体,其中接触液体之间的接触光学表面具有可变形状,可变形状对于其自身的光轴为基本对称的并且对至少一个其他光轴为非对称的。 [0006] In one embodiment, the liquid lens unit comprises a first and a second contact with the liquid contacting liquid, which contacts the contact between the optical surface of the liquid having a variable shape, a variable shape for its own optical axis is substantially symmetrical and an optical axis of at least one other non-symmetrical. 多个透镜元件和液体透镜单元被配置成聚集从物侧空间发出的辐射,并且为传输至像侧空间的辐射提供至少部分稳定。 A plurality of lens elements and the liquid lens unit is configured to gather radiation emitted from the object side space and to the radiation image side space provided for the transmission of at least partially stabilized.

[0007] 可配置两个或更多液体透镜单元以为传输至像侧空间的辐射提供进一步的稳定。 [0007] may be configured of two or more of the liquid lens unit that is transmitted to the radiation image side space to provide further stabilization. 例如,可采用两个液体透镜单元在单一直线方向稳定图像。 For example, a two liquid lens elements in a single linear direction image stabilization. 该稳定可校正例如水平或垂直图像抖动。 The stability can be corrected such as horizontal or vertical image jitter.

[0008] 在另一个实施方式中,配置四个或更多液体透镜单元以为传输至像侧空间的辐射提供稳定。 [0008] In another embodiment, the configuration of the four or more liquid lens unit that is transmitted to the radiation image side space to provide stability. 液体透镜单元中的两个可在一个方向上提供稳定,而另两个液体透镜单元在另一个方向上提供稳定。 Two liquid lens unit may be provided in a stable direction, and the other two lens units to provide a stable liquid in the other direction. 这四个或更多液体透镜单元可一起提供任何方向上的稳定。 Four or more liquid can be provided together with the lens unit stable in any direction.

[0009] —种液体透镜单元,包括第一接触液体和第二接触液体,配置第一接触液体和第二接触液体使得接触液体之间的接触光学表面具有可变形状,所述可变形状关于所述液体透镜单元的光轴为基本对称的。 [0009] - species of the liquid lens unit comprising a first and a second contact with the liquid contacting the liquid, the configuration of the first contact and the second contact liquid liquid liquid such that the contact between the optical surface in contact with a variable shape, the shape of the variable optical axis of the liquid lens unit is substantially symmetrical. 多个透镜元件沿公共光轴对准,且被布置成接收从物侧空间发出的辐射,并且将辐射传输至像侧空间。 A plurality of lens elements aligned along a common optical axis and arranged to receive radiation emitted from the object side space, and the radiation transmitted to the image side space. 液体透镜单元可被插入由沿公共光轴对准的多个透镜元件形成的光路中。 Liquid lens unit may be inserted into the optical path by a plurality of lens elements aligned along a common optical axis formed. 液体透镜单元的光轴可平行于公共光轴,或与公共光轴成一定角度。 The optical axis of the liquid lens unit may be parallel to the common optical axis, or at an angle with the common optical axis.

[0010] 可用电子控制系统控制液体透镜单元中接触光学表面的可变形状。 [0010] Available electronic control system controls the liquid contact lens unit variable optical surface shape. 加速度计、激光陀螺仪等可用于检测一个或更多透镜元件的移动,然后接触光学表面的形状发生变化以补偿透镜元件的移动从而稳定图像。 Shape accelerometers, laser gyroscope can be used to detect movement of one or more lens elements, and then contacting the optical surfaces is changed to move the compensation lens element so as to stabilize the image.

[0011] 控制系统可被配置成检测照相机的移动镜头运动,从而使得由于移动镜头而引起的像移未得到校正。 [0011] The control system may be configured to detect movement of the camera lens motion, so as to move the lens caused due to the shift is not corrected. 控制系统还可被配置成补偿不同类型的移动。 The control system may also be configured to compensate for the different types of movement. 例如,控制系统可补偿具有大于2Hz频率的振动。 For example, the control system may compensate for the frequency having a vibration greater than 2Hz.

[0012] 可协同控制第一液体透镜单元和第二液体透镜单元,从而为传输至像侧空间的辐射在至少一个方向上提供稳定。 [0012] synergistically control the first liquid lens unit and the second liquid lens unit, so as to transmit the radiation image side space to provide stable in at least one direction. 第一液体透镜单元的光焦度可与第二液体透镜单元的光焦度基本上相等且相反。 Power of the first lens unit of the liquid may be substantially equal and opposite to the light power of the second liquid lens unit. 可设置第一液体透镜单元的光焦度和第二液体透镜单元的光焦度以提供像平面处的聚焦。 May be provided a first optical power of the liquid lens unit optical power and the second liquid to provide a focusing lens unit at the image plane.

[0013] 在一个实施方式中,第一对液体透镜单元在第一方向上相互偏移,且第二对液体透镜单兀在与第一方向基本垂直的方向上相互偏移。 [0013] In one embodiment, a first lens unit of the liquid offset from each other in the first direction, and the second lens unit Wu liquid in a direction substantially perpendicular to the first direction offset from each other. 第一对液体透镜单兀在其偏移方向上提供图像稳定,而第二对液体透镜单元在其偏移方向上提供图像稳定。 A first lens unit of liquid Wu provides image stabilization in its offset direction, and the second lens unit to provide liquid image stabilization in its offset direction.

[0014] 第一对液体透镜单元可在一个方向上相互偏移,且第二对液体透镜单元可在基本不同的方向上相互偏移,第二对液体透镜单元的偏移幅度大于或小于第一对液体透镜单元的偏移幅度。 [0014] The first lens unit of the liquid are mutually shifted in one direction, and the second liquid lens unit may offset from each other in a substantially different directions, the liquid shift amplitude of the second lens unit is greater than or less than the first A width of shift of the liquid lens unit. 例如,第一对液体透镜单元的稳定范围大于两倍的第一对液体透镜单元的稳定范围。 For example, the stable range of the first lens unit is larger than the liquid stable range twice the first liquid lens unit.

[0015] 在任何一个实施方式中,一个或更多附加的液体透镜单元可用于补偿热效应,调整传输至像侧空间的辐射的焦点,或作为变焦配置的一部分。 [0015] In any of the embodiments, one or more additional liquid lens unit can be used to compensate for thermal effects, the focus adjusting transmission to the image side space of the radiation, or as part of a zooming configuration.

附图说明 Brief Description

[0016] 图1为照相机的方框图; [0016] Figure 1 is a block diagram of the camera;

[0017] 图2为采用液体的变焦透镜系统的光学示意图; [0017] Figure 2 is a liquid zoom lens system using an optical schematic view;

[0018] 图3A和图3B为图2的变焦透镜系统的液体单元的光学示意图,其中示出液体之间的表面形状; [0018] Figures 3A and 3B is an optical schematic view of a liquid unit zoom lens system of Figure 2, which shows the surface shape of the liquid between;

[0019] 图4A、图4B和图4C为图2的变焦透镜系统的光学示意图,示出用以产生不同的焦距和焦点距离(focus distances)的变焦透镜组的不同位置以及液体之间的表面形状; [0019] Figures 4A, 4B and 4C is a schematic view of the optical zoom lens system of Figure 2, illustrating the surface to produce different focal lengths and focal distance (focus distances) of the zoom lens group and a liquid between the different positions shape;

[0020] 图5A、5B和5C为图4A、图4B和图4C的变焦透镜系统的调制传递函数性能图; [0020] Figures 5A, 5B and 5C to FIGS. 4A, 4B and 4C, the modulation of the transfer function of a zoom lens system performance plot;

[0021] 图6A和图6B为米用液体稳定一个方向上的图像的透镜系统的光学不意图; [0021] Figures 6A and 6B is a lens system of the optical image in one direction on the meter with a liquid stable not intended;

[0022] 图7A和图7B为采用液体稳定任意方向上的图像的透镜系统的光学示意图; [0022] Figures 7A and 7B are optical images of the lens system of the liquid stabilizer in an arbitrary direction schematic;

[0023] 图8A、图8B和图8C为图7A和图7B的透镜系统的光学示意图,其中示出用以产生不同的焦距和焦点距离的变焦透镜组的不同位置和液体之间的表面形状; [0023] FIGS. 8A, 8B and 8C is a schematic view of an optical lens system of Figures 7A and 7B, wherein the surface shape is shown for generating a zoom lens group and the focal length of different focal lengths and different positions between the liquids ;

[0024] 图9A、图9B、图9C和图9D为图7A和图7B的透镜系统的光学示意图,其中示出用以稳定图像的变焦透镜组的不同位置和液体之间的表面形状; [0024] FIGS. 9A, 9B, 9C and 9D is a schematic view of an optical lens system of FIG. 7A and FIG. 7B, in which the surface is shown to form stable images at different locations and the liquid between the zoom lens group;

[0025] 图10A、图10B、图1OC和图1OD为图7A和图7B的透镜系统的光学示意图,其中示出用以稳定图像的变焦透镜组的不同位置和液体之间的表面形状; [0025] FIGS. 10A, 10B, Fig. 1OC and Fig 1OD is a schematic view of an optical lens system of FIG. 7A and FIG. 7B, in which the surface is shown to form stable images at different locations and the liquid between the zoom lens group;

[0026] 图1lAUlB和图1IC为如图8A、图8B和图8C中配置的透镜系统的调制传递函数的性能图; [0026] FIG 1lAUlB and FIG 1IC modulation transfer function is shown in Figure 8A, 8B and 8C in the performance of the lens system configuration diagram;

[0027] 图12A、图12B、图12C和图12D为如图9A、图9B、图9C和图9D中配置的透镜系统的调制传递函数的性能图; [0027] FIGS. 12A, 12B, 12C and 12D transfer properties for the modulation function as shown in FIG. 9A, 9B, 9C and 9D are configured of a lens system;

[0028] 图13A、图13B、图13C和图13D为如图10A、图10B、图1OC和图1OD中配置的透镜 [0028] Figs. 13A, 13B, 13C and 13D of FIG. 10A, FIG. 10B, FIG 1OC and FIG. 1OD lens configured

系统的调制传递函数的性能图。 Modulation system transfer function of the performance of FIG.

具体实施方式[0029] 下面参照附图描述优选实施方式,附图组成具体实施方式的一部分并在其中图示出可实施本发明的具体实施方式。 DETAILED DESCRIPTION [0029] The following description of preferred embodiments with reference to the accompanying drawings, the drawings form part of the specific embodiment illustrated and in which specific embodiments of the present invention may be practiced. 应该理解的是,在不脱离本发明范围的情况下,可采用其他实施方式以及改变结构。 It should be understood that, without departing from the scope of the present invention, as well as other embodiments may be used to change the structure.

[0030] 于2007年10月8日提交的、序列号为60/783,338、标题为“液体光学变焦透镜和成像装置”的美国临时专利申请,通过引用并入本文,其中公开了一种采用液体光学元件以提供变焦和聚焦功能的变焦透镜系统。 [0030] on October 8, 2007 filed, Serial No. 60 / 783,338, entitled "Liquid optical zoom lens and an imaging device," U.S. Provisional Patent Application, incorporated herein by reference, which discloses a using the liquid optical element to provide the function of the zoom and focus zoom lens system. 液体光学元件还可用于提供稳定性。 Liquid optical element may also be used to provide stability. 在此公开了一种使用液体光学元件的示例性的实施方式。 Disclosed herein is a liquid optical element using an exemplary embodiment.

[0031] 变焦透镜系统中的液体光学元件 [0031] The zoom lens system of the liquid optical element

[0032] 图1示出具有变焦透镜102的摄像机100的方框图。 [0032] Figure 1 shows a block diagram of a zoom lens 102 of the camera 100. 变焦透镜是能够改变焦距的透镜元件的组件。 The zoom lens is capable of changing the focal length of the lens element assembly. 单独的透镜元件可安装在适当的位置,或沿着透镜的本体轴向滑动。 Separate lens element can be mounted in place, or to slide axially along the body of the lens. 透镜组可由一个或多个透镜元件组成。 Lens group may consist of one or more lens elements. 至少一个可移动的透镜组提供物体放大率的变化。 At least one movable lens group providing an object magnification changes. 随着移动该至少一个透镜组以实现放大,焦平面的位置也可移动。 With the movement of the at least one lens group to achieve amplification, the position of the focal plane can be moved. 可移动至少一个其他可移动的透镜组来补偿该焦平面的移动,以保持恒定的焦平面位置。 At least one other movable lens group movable to compensate for movement of the focal plane, in order to maintain a constant focal plane position. 还可通过当透镜放大率改变时移动全部透镜组件来机械地达到对焦平面移动的补偿。 But also by moving the entire lens assembly when changing magnification lens to achieve compensation for mechanically moving the focal plane.

[0033] 单独的透镜元件可由固相材料构成,例如玻璃、塑料、结晶体或半导体材料,或利用液态或气态材料构成,例如水或油。 [0033] the individual lens elements may be a solid phase material, such as glass, plastic, crystal or semiconductor material, or the use of liquid or gaseous material, such as water or oil. 透镜元件之间的空间可包含一种或多种气体。 The space between the lens elements may comprise one or more gases. 例如,可使用标准空气、氮气或氦气。 For example, a standard air, nitrogen or helium. 可选地,透镜元件之间的空间可为真空。 Alternatively, the space between the lens elements may be a vacuum. 当本公开中使用“空气”时,应该理解使用的是广义含义,其可包括一种或多种气体,或为真空。 When using the present disclosure, "air", it should be understood that the use of broad sense, which may include one or more gases, or a vacuum.

[0034] 变焦透镜通常具有三个或更多移动的透镜组以实现变焦和聚焦功能。 [0034] The zoom lens typically has three or more movable lens group to achieve a zoom and focus functions. 机械凸轮可将两个可移动的透镜组连接以进行变焦,而第三可移动的透镜组可用于聚焦。 A mechanical cam may be two movable lens group for zooming is connected, while the third movable lens group can be used for focusing.

[0035] 变焦范围部分地取决于可移动的透镜元件的移动范围。 [0035] The zoom range depends in part on the movement range of the movable lens element. 大的变焦范围需要用于透镜元件移动的额外空间。 Large zoom range requires additional space for movement of the lens element. 实施液体单元技术的透镜组可替换一个或更多可移动的透镜组。 Lens group embodiment liquid cell technology may replace one or more movable lens groups. 因为液体单元不需要轴向移动的空间,因此可减少包含可移动的透镜组的透镜设计的长度。 Because the liquid element does not require axial movement of the space, thereby reducing the lens design contains a movable lens group length. 可选地,用于可移动的透镜组移动的空间可用于包括额外的光学元件或光学折层(optical folds)。 Alternatively, for the movable lens group is moved in the space available to include additional optical elements or optical folds (optical folds). 虽然液体单元不需要移动用的空间,但是液体单元可作为可移动的透镜组的一部分。 Although the unit need not be moved with the liquid space, but the liquid can be used as unit movable lens group part.

[0036] 液体单元可用于变焦和聚焦。 [0036] Liquid unit can be used to zoom and focus. 在一个实施方式中,可移动的透镜组与实施液体单元技术的透镜组一起使用。 In one embodiment, for use with a movable lens group as described liquid cell technology lens group. 不需要具有一个可移动的透镜组的机械凸轮。 Need not have a mechanical cam movable lens group. 不具有凸轮允许额外的移动。 Does not have a mobile cam allow extra.

[0037] 一个或多个可移动的透镜组与一个或多个液体单元一同使用以实现变焦和聚焦。 [0037] One or more movable lens groups and one or more liquid elements used together to achieve a zoom and focus. 单一的可移动的透镜组和单一的液体单元可一起实施变焦、聚焦以及热效应的补偿。 A single movable lens group and a single unit may be implemented together liquid zoom, focus and thermal compensation effect. 在一种实施方式中,变焦系统至少具有第一和第二透镜组。 In one embodiment, the zoom system having at least a first and a second lens group. 第一透镜组为相对高光焦度的,而第二透镜组为相对低光焦度的,透镜光焦度等于透镜焦距的倒数。 The first lens group is relatively high optical power and the second lens group is relatively low optical power, the optical power of the lens is equal to the reciprocal of the focal length of the lens. 第一透镜组包括常规玻璃透镜或其他固体透镜,第二透镜组包括至少一个液体透镜。 The first lens group includes a conventional glass lens or other solid lens, a second lens group includes at least one liquid lens.

[0038] 液体单元使用两种或更多种液体来形成透镜。 [0038] Liquid unit uses two or more liquids to form a lens. 透镜的焦距部分地由液体之间的接触角和液体间的折射率差异来确定。 The focal length of the lens is determined in part by the difference in refractive index between the contact angle and the liquid between the liquid. 光焦度变化的范围受到所采用的液体的折射率的差异和因空间约束在液体之间的表面交界处产生的曲率半径的有限范围的限制。 Difference in refractive index changes in the range of optical power of the liquid being used and because of space constraints in a limited range of the radius of curvature of the surface of the liquid junction between the generated restrictions. 通过引用并入本文的公开号为2006/0126190的美国专利申请,公开了一种采用通过电润湿法产生液滴变形的透镜。 Incorporated herein by reference U.S. Patent Application Publication No. 2006/0126190, there is disclosed a method using a lens distortion generating droplets by electrowetting. 通过引用并入本文的第6,936,809号美国专利,公开了一种使用电润湿技术以横向偏移在像面上形成的图像。 Incorporated herein by reference U.S. Patent No. 6,936,809, discloses a method of using electrowetting technique to lateral offset of the image of an image formed on the surface.

[0039] 目前预期的液体透镜系统的折射率之差至少约0.2,优选地至少约0.3,在一些实施方式中至少约为0.4。 [0039] refractive index difference between the liquid lens system presently contemplated of at least about 0.2, preferably at least about 0.3, in some embodiments, at least about 0.4. 水具有约1.3的折射率,且加盐后折射率可变为约1.48。 Water has a refractive index of about 1.3, and the refractive index can be changed after the salt about 1.48. 适合的光学油(optical oils)可具有至少约1.5的折射率。 Suitable optical oil (optical oils) may have a refractive index of at least about 1.5. 甚至利用具有较高、较低或较高和较低折射率的液体,例如较高折射率的油,光焦度变化的范围仍受到限制。 Even with the use of higher, lower or higher and a lower refractive index of the liquid, such as high refractive index oil, changes in the range of optical power is still limited. 受限的光焦度变化范围通常提供比可移动的透镜组小的放大率变化。 Limited optical power range than is typically provided a movable lens group small magnification change. 因此,在简单的变焦透镜系统中,为了提供变焦同时保持恒定的像面位置,通过一个可移动的透镜组提供大部分的放大率变化,且通过一个液体单元提供放大率变化期间像面上大部分的散焦补偿。 Thus a large image plane, in a simple zoom lens system, in order to provide a zoom image plane while maintaining a constant position, through a movable lens group to provide the majority of the magnification change, and by providing a liquid during the magnification change unit defocus compensation section. 然而,应该注意,可利用更多的可移动的透镜组或更多的液体单元,或利用更多的可移动的透镜组和更多的液体单元。 However, it should be noted, can be used more movable lens groups or more liquid elements, or the use of more movable lens group and the more liquid unit.

[0040] 可移动的透镜组可具有正或负光焦度。 [0040] movable lens group may have a positive or negative power. 液体单元可具有一定范围的可变光焦度,其中光焦度总为正、总为负或从正变为负或从负变为正。 Liquid unit may have a range of variable power, wherein the optical power is always positive, negative or always from positive to negative or from negative to positive. 可移动的透镜组和液体单元的适当布置可提供大于2倍且优选地大于3倍的扩展的变焦比,且同时在整个变焦范围内提供良好的图像质量。 May be suitably arranged to move the lens group unit and the liquid may be provided greater than 2-fold and preferably greater than three times the zoom ratio of expansion, while also providing good image quality in the entire zoom range. 除变焦之外,该布置还可通过利用来自液体单元、可移动的透镜组或两者的额外可获得的光焦度变化,在扩展的聚焦范围内的不同物距处提供聚焦。 In addition to zooming, the arrangement may also be through the use of additional optical power change available movable lens group from a liquid, or both units, over an extended focus range provided at different focus object distance. 液体单元或可移动的透镜组或者两者为聚焦所提供的额外光焦度变化是容易获得的。 Liquid unit or additional optical power changes movable or both of the focusing lens group provided are readily available. 由于一个可移动的透镜组不需要具有固定移动轨迹的凸轮,因此可调节可移动的变焦透镜组的位置以变焦和聚焦。 Since a movable lens group need not have a cam track fixed mobile, thus can adjust the position of the movable lens group of the zoom to zoom and focus. 通过利用可移动的变焦透镜组和液体单元进行变焦和聚焦实现了高性能成像。 By using the zoom lens group and liquid unit movable zoom and focus to achieve a high-performance imaging.

[0041] 还可用至少一个液体单元替换可移动的变焦透镜组。 [0041] may also be replaced with a movable zoom lens group with at least one liquid unit. 这将增加光学系统的复杂性,并导致光学系统具有其他缺点,例如减小的放大率变化。 This will increase the complexity of the optical system, and lead to the optical system has other disadvantages, such as changes in magnification decreases.

[0042] 图1还示出透镜控制模块104,其控制透镜中的透镜组102的移动和操作。 [0042] Figure 1 also shows a lens control module 104, which controls the movement and operation of the lens in the lens group 102. 控制模块104包括控制液体透镜单元的曲率半径的电路。 The control module 104 includes a circuit to control the liquid radius of curvature of the lens unit. 电路还可控制可移动的透镜组的位置。 Circuit may also control the position of the movable lens group. 可预先确定用于不同焦点位置和变焦位置的适当的电子信号电平,并将其置于查找表中。 Can be determined in advance for an appropriate electronic signal levels of different focus position and zoom position, and placed in a lookup table. 可选地,模拟电路或电路与查找表的组合可生成适合的信号电平。 Alternatively, a combination of analog circuits or circuit and the lookup table can be generated for the signal level. 在一个实施方式中,用多项式确定适合的电子信号电平。 In one embodiment, the polynomial used to determine suitable electronic signal level. 沿着多项式的点可被存储在查找表中,或者多项式可通过电路实施。 Points along the polynomial can be stored in a lookup table, or polynomial implemented by the circuit.

[0043] 在控制液体之间的表面的曲率半径或可移动的透镜组的位置或者两者时还可考虑热效应。 [0043] In controlling the position of the surface of the liquid between the radius of curvature or a movable lens group or both thermal effects may also be considered. 多项式或查找表可包括额外的与热效应相关的变量。 Polynomial or lookup table may include additional variables associated with the thermal effects.

[0044] 控制模块104可包括用于特定变焦设置或焦距的预置控制。 [0044] The control module 104 may include a specific focal length of the zoom settings or preset control. 这些设置可由使用者或照相机制造商存储。 These settings can be stored in a user or camera manufacturer.

[0045]图1进一步示出图像捕获模块106,图像捕获模块106接收与外部物体相应的光学图像。 [0045] Figure 1 further shows the image capture module 106, the image capture module 106 receives an external object corresponding to an optical image. 该图像沿着穿过透镜102的光轴被传输至图像捕获模块106。 The image is transmitted through the lens 102 along the optical axis to the image capture module 106. 图像捕获模块106可采用不同的形式,例如胶片(例如生胶片或静止影像胶片),或电子图像检测技术(例如CXD阵列、CMOS装置或视频拾取电路)。 106 may be different forms image capture module, such as a film (e.g., film or still images raw film), or an electronic image detection techniques (e.g. CXD arrays, CMOS device or video pickup circuit). 光轴可为线状的,或者光轴可包括折叠。 The optical axis can be linear, or may comprise a folded optical axis.

[0046]图像存储模块108将所捕获的图像保存在例如单板存储器或胶片、磁带或磁盘上。 [0046] The image storage module 108 of the captured images stored on-board memory or film, for example, tape or disk. 在一个实施方式中,存储介质为可移除的(例如闪存、胶片筒、磁带盒或磁盘)。 In one embodiment, the storage medium is removable (e.g., flash memory, film cartridges, tape cartridges or disks).

[0047]图像传输模块110将所捕获的图像传输至其他装置。 Image Transmission [0047] The image transmission module 110 to other devices captured. 例如,图像传输模块110可使用一种或多种连接,例如USB端口、IEEE 1394多媒体连接、以太网端口、蓝牙无线连接、IEEE 802.11无线连接、视频元件连接或S视频连接。 For example, the image transmission module 110 may use one or more connections, such as a USB port, IEEE 1394 multimedia connection, an Ethernet port, a Bluetooth wireless connection, IEEE 802.11 wireless connections, video connections or S-video connector element. [0048] 照相机100可以以多种方式实现,例如摄像机、移动电话相机、数字图像摄像机或月父片摄像机。 [0048] The camera 100 may be achieved in various ways, such as cameras, mobile phone cameras, digital video camera or camcorder month parent sheet.

[0049] 现在将通过设计示例来描述变焦透镜的实施方式。 [0049] embodiments will now be described by way of the zoom lens design example. 首先参照图2,通过字母“E”和跟随其后的数字I至20来表示每个透镜元件,并描述每个透镜元件的总体配置,但是每个透镜表面的实际半径在表I中列出。 Referring first to FIG. 2, by the letter "E" and following subsequent figures I to 20 to represent each lens element, and describes the general configuration of each lens element, but the actual radius of each lens surface are listed in Table I . 以数字I至36来表示透镜、物体、光阑或可变光圈以及像面。 To 36 digital I represent lens, objects, or iris diaphragm and the image plane. 通过字母“G”和跟随其后的数字I至3表示图2中的三个透镜组,通过字母“LC”表示液体透镜单元,液体透镜单元包括光学表面19至23。 By the letter "G" and following subsequent digital I to 3, Figure 2 shows the three lens groups, by the letters "LC" represents a liquid lens unit, the liquid lens unit comprises an optical surface 19-23. 光轴在图2中由数字38表示。 The optical axis 38 in FIG. 2 by the numeral.

[0050] 每个透镜元件具有以独立但连续的表面数字表示的相对表面,例如如图2所示,透镜元件El具有透镜表面2和透镜表面3,透镜元件E9具有透镜表面17和透镜表面18等。 [0050] Each lens element has opposite surfaces having separate but consecutive surface number indicates, for example 2, the lens element 2 and the lens surfaces having El lens surface shown in Figure 3, the lens element 17 E9 having a lens surface and the lens surface 18 and so on. 待成像物体的位置特别由于其与对焦距离有关而由位于光轴38上的竖直线和数字I表示,且实像面由数字36表示。 Location object to be imaged and the focusing distance due to their particular on by vertical lines located on the optical axis 38 and the digital representation of I, and the real image plane represented by the numeral 36. 除透镜表面4和透镜表面8之外的所有透镜表面都为球面或平面,透镜表面4和透镜表面8为非球形、非平的但关于光轴旋转对称的非球面。 All of the lens surface other than the lens surface of the lens 4 and 8 are both spherical surface or plane, the lens surface of the lens 4 and 8 non-spherical surface, non-flat, but rotationally symmetric about the optical axis of the aspherical surface.

[0051] 在描述透镜元件的详细特征之前,针对变焦透镜系统60给出透镜组和透镜组的轴向位置及移动、以及液体透镜单元和与液体接触的表面形状的变化的概括描述。 [0051] Before describing the detailed characteristics of the lens elements, the zoom lens system 60 for the lens group and the lens group given axial position and movement, as well as the shape of the liquid lens unit and the surface in contact with the liquid changes general description.

[0052] 每个透镜组的正光焦度或负光焦度定义为焦距的倒数。 [0052] positive power of each lens group or the negative power is defined as the reciprocal of the focal length. 得出的每个透镜组的光焦度如下:物镜组Gl为正,变焦透镜组G2为负,而后透镜组G3为正,且随着液体单元中表面形状的变化从较低的正值变化到较高正值。 Optical power of each lens group were as follows: a positive lens group Gl, the zoom lens group G2 is negative, then the positive lens group G3, and with the changes of the liquid cell surface shape changes from a low value to a higher positive. 位于图2上部的两端带有箭头的水平箭头标志表示变焦透镜组G2可在两个轴向方向上移动。 Located at both ends of the upper portion of Figure 2 with an arrow mark of horizontal arrow indicates the zoom lens group G2 can be moved in both axial directions.

[0053] 图2中仅物理地示出了透镜元件,应该理解的是,可在透镜壳体或镜头筒中提供用于支撑透镜元件以及使可移动的变焦透镜组轴向移动的机械装置和机构。 [0053] FIG. 2 shows only the physical lens elements, it should be understood that the mechanical means may be provided for supporting the lens elements and the mechanism and the zoom lens group is axially movable to move the lens in a lens housing or barrel . 另外,应该理解的是,电路改变液体透镜单元中的形状可变化的光学表面的轮廓。 Additionally, it should be understood that the circuit changes the contour of the optical surface shape of the liquid lens unit can be varied.

[0054] 在表I中列出了上述变焦透镜系统60中的透镜结构和构造的数据。 [0054] The data listed in the above-described zoom lens system 60 and a lens structure constructed in Table I below. 表I中的数据是在25C (77 T )的温度以及标准大气压(760mmHg)下给出的。 Data in Table I are at 25 C (77 T) and the temperature of the standard atmospheric pressure (760mmHg) under given. 在整个说明书中,除波长为纳米(nm)之外,计量单位均为毫米(mm)。 Throughout the specification, in addition to the wavelength in nanometers (nm), measurement units are in millimeters (mm). 在表I中,第一栏的“项目”表示具有与图2中使用的相同标号或标识的每个光学元件以及每个位置,即物面、像面等。 In Table I, the first column of the "item" means having the same reference numerals or identification used in Figure 2 of each optical element and each location, i.e. the object plane, the image plane and the like. 第二栏表示具有与图2中使用的相同的标号的光学元件(透镜)所属的“组”。 The second column shows the optical elements have the same reference numerals used in FIG. 2 (lens) belongs to "group." 第三栏“表面”为如图2中所示的物体的表面数字(图2中的线“I”和表I中的“物体”)、光阑(可变光圈)13和透镜的每个实际表面的列表。 Each of the figures (Fig. 2 line "I" and in Table I of "object") in the third column "surface" for the object as shown in Figure 2, the aperture (iris) 13 and the lens list of actual surface. 第四栏“焦点位置”表示变焦透镜系统60的三个典型焦点位置(F1、F2和F3),其中如以下更全面描述的,在第三栏所列出的一些表面之间的距离(间隔)存在变化,并且在第三栏列出的表面21的曲率半径也存在变化。 The fourth column "focal position" represents three typical zoom lens system focus position (F1, F2 and F3), which as described more fully below 60, the distance between the surface of the third column are listed some of the (interval ) there is a change, and also there is a change in the third column lists the radius of curvature of surface 21. 第五栏“间隔”为表面(第三栏)与下一表面之间的轴向距离。 The fifth column "interval" is the axial distance from the surface (column 3) and the next surface. 例如,表面S2与表面S3之间的距离为1.725mm。 For example, the distance between surface S2 and surface S3 is 1.725mm.

[0055] 标题为文字“曲率半径”的第六栏,是每个表面的光学表面曲率半径的列表,负号(-)表示曲率半径的中心在表面左侧,如图2所示,“无穷大”表示光学上扁平的表面。 [0055] The sixth column heading text "radius of curvature" is the list of the radius of curvature of each optical surface of the surface, the negative sign (-) represents the center of the radius of curvature of the surface of the left side, shown in Figure 2, "infinity "represents an optically flat surface. 表面4和8的星号(*)表示表面4和8为非球面,其“曲率半径”为基圆半径(base radius)。 Asterisk surface 4 and 8 (*) represents an aspherical surface 4 and 8, the "radius of curvature" as the base radius (base radius). 使用非球面提供了对变焦透镜的像差的校正,使变焦透镜整体尺寸更小并且配置更简单。 Aspheric provides correction of aberrations of the zoom lens, so that the overall size of the zoom lens is smaller and simpler configuration. 非球面4和非球面8的表面轮廓的公式和系数由下述等式决定: Aspheric surface profile 4 and 8 of the aspherical equation is determined by the following equation and coefficients:

[0056] z =-^F + 4/ + By6 + C/ + Dym + Eyu + Fy14 [0056] z = - ^ F + 4 / + By6 + C / + Dym + Eyu + Fy14

i+[1-(i+^)cyr i + [1- (i + ^) cyr

[0057] 其中,c为表面曲率(c = 1/r,其中r为曲率半径);[0058] y为从X轴和Y轴测量的表面的径向孔径高度; [0057] wherein, c is the surface curvature (c = 1 / r, where r is the radius of curvature); [0058] y is a radial aperture measured from the X-axis and Y-axis height of the surface;

[0059]其中,y = (X2+Y2)1/2 ; [0059] where, y = (X2 + Y2) 1/2;

[0060] K为二次曲线系数; [0060] K is the conic coefficient;

[0061] A、B、C、D、E、F分别为第4、第6、第8、第10、第12和第14阶的形变系数(deformation coefficient); [0061] A, B, C, D, E, F, respectively, for the 4th, 6th, 8th, 10th, 12th and 14th order deformation coefficient (deformation coefficient);

[0062] z为对于给定y值或沿光轴从表面的极点(即轴向顶点)测量的表面轮廓的位置; [0062] z y for a given value or the surface along the optical axis from the pole (i.e. axial vertex) of the surface profile of the measured position;

[0063] 表面4的系数为: Coefficient [0063] surface 4 is:

[0064] K = -0.6372 [0064] K = -0.6372

[0065] A =+0.9038X10—6 [0065] A = + 0.9038X10-6

[0066] B =+0.2657X10 8 [0066] B = + 0.2657X10 8

[0067] C =-0.1105X10 10 [0067] C = -0.1105X10 10

[0068] D =+0.4301X 1(T13 [0068] D = + 0.4301X 1 (T13

[0069] E = -0.8236 X IO-16 [0069] E = -0.8236 X IO-16

[0070] F =+0.6368X10, [0070] F = + 0.6368X10,

[0071] 表面8的系数为: Coefficient [0071] surface 8 is:

[0072] K=0.0000 [0072] K = 0.0000

[0073] A = 0.5886 X IO-4 [0073] A = 0.5886 X IO-4

[0074] B =-0.5899X10—6 [0074] B = -0.5899X10-6

[0075] C = 0.8635 X IO 8 [0075] C = 0.8635 X IO 8

[0076] D = -0.5189 X IO-10 [0076] D = -0.5189 X IO-10

[0077] E =-0.1186XKT11 [0077] E = -0.1186XKT11

[0078] F = 0.1631X 1(T13 [0078] F = 0.1631X 1 (T13

[0079] 表I的第七栏至第九栏涉及图2中表面(第三栏)与其右侧下一表面之间的“材料”,“类型”栏表示两个表面之间为透镜(玻璃)或空的空间(空气)或液体透镜(液体)。 [0079] Table I, Column seventh to ninth column surface figure 2 (column 3) relate to "material" to the right next to its surface, the "Type" column indicates the lens between two surfaces (glass ) or an empty space (air) or liquid lens (liquid). 玻璃和液体透镜在“代码”栏中由光学玻璃或光学浸液来表示。 Glass and the liquid lens in the "code" column made of optical glass or optical immersion represented. 为了简便起见,所有透镜玻璃均选自可从Ohara Corporation (小原株式会社)获得的玻璃,并且“名称”栏列出了每种玻璃类型的小原标识(Ohara identification),但应该理解的是,也可使用任何等同的、相似的或适合的玻璃。 For simplicity, all glass lenses are selected from glass, available from Ohara Corporation (Ohara Corporation), and the "Name" column lists the type of each glass Kohara identification (Ohara identification), it should be understood that it is also Any equivalent may be used, similar or suitable glass. 而且,油的透镜液体选自可从Cargille Laboratories, Inc.(迈科诺技术有限公司)获得的液体,并且水是通常可从各种水源获得的,但应该理解的是,可以使用任何等同的、相似的或适合的液体。 Moreover, liquid oil is selected from liquid lens available from Cargille Laboratories, Inc. (Mai Kenuo Technology Co., Ltd.), and the water is generally available from a variety of water sources, it should be understood that, any equivalent , similar or suitable liquid. 表面20处的水基液体在波长656.27,589.29,546.07和486.13nm 处分别具有折射率1.331152、1.332987、1.334468 和1.337129。 Water-based liquid surface 20 of the wavelength at 656.27,589.29,546.07 and 486.13nm 1.331152,1.332987,1.334468 and 1.337129, respectively, having a refractive index. 表面21 处的油液在波长656.27,589.29,546.07 和486.13nm 处分别具有折射率1.511501、1.515000、1.518002 和1.523796。 Surface 21 of the fluid at the wavelength 656.27,589.29,546.07 and 486.13nm 1.511501,1.515000,1.518002 and 1.523796, respectively, having a refractive index.

[0080] 表I中标题为“孔径直径”的最后一栏提供光线穿过的每个表面的最大直径。 [0080] Table I, titled "pore diameter" in the last column provide light through each of the surface of the largest diameter. 对于所有的变焦和焦点位置,对于像面上大约6mm的最大图像直径和F/2.8至F/4.0的F数,在波长546.1纳米处给出除光阑表面13以外的所有最大孔径直径。 For all of the zoom and focus position, image plane for maximum image diameter of approximately 6mm and F / F number of 2.8 to F / 4.0, the maximum pore diameter is given in addition to all the surface of the diaphragm 13 than at a wavelength 546.1 nm. 在表I中,对于变焦位置Zl和焦点位置Z1,在波长为546.1纳米和像面上的F数为F/2.8时给出了光阑表面13的最大孔径直径。 In Table I, for the focus position and zoom position Zl Z1, at a wavelength of 546.1 nm and the number of image plane F is F / 2.8 aperture surface is given a maximum pore diameter of 13. 在像面36上,以大致值给出了最大孔径直径。 On the image plane 36, a substantially maximum value given aperture diameter.

[0081]表 I[0082] [0081] Table I [0082]

Figure CN101896850BD00101

[0083] [0083]

[0084] 变焦透镜系统60在表面13处设置有光阑,用于控制光线在该位置可穿过的孔径的直径。 [0084] The zoom lens system 60 is provided with a stop at the surface 13, for controlling the position of the light may pass through the diameter of the aperture. 光阑为物理光圈(或膜片)所在的位置。 A physical aperture diaphragm for the location (or diaphragm) is located. 光圈位于后透镜组G3前方并相对透镜组轴向固定。 After the aperture is located in the front lens group G3 and relatively axially fixed lens group. 注意,在图4A中,边缘光线经过光阑表面13的刻度(tic marks)的轴侧,从而使变焦透镜系统在任何场位置、变焦位置和焦点位置都没有光束的渐晕。 Note that, in Figure 4A, the edge surface of the light through the aperture 13 of the scale (tic marks) of the shaft side, so that the zoom lens system in any field position, zoom position and focus position of the beam are no vignetting. 然而,注意,F数随变焦和焦点位置而变化,而且光圈相应地打开或关闭。 However, note that, F number with zoom and focus position changes, and open or close the iris accordingly. 对于焦点位置Fl,变焦位置Z1-Z8的光圈的直径为6.71,6.39,5.96,5.53,5.18,4.84,4.63和4.61。 For the focus position Fl, the zoom position of Z1-Z8 aperture diameter 6.71,6.39,5.96,5.53,5.18,4.84,4.63 and 4.61. 这表明随着焦距增加,位于表面13处的光圈应当关闭。 This indicates that with the focal length increases, located at the surface of the aperture 13 should be closed. 与焦点位置Fl相比,对于焦点位置F2和F3的变焦位置Z1-Z8的光圈直径发生小于0.3mm直径的少量变化,以保持对于焦点位置Fl的相同的F数。 Compared with the focus position Fl, F2 for a zoom position and focus position F3 of the small amount of variation of less than 0.3mm diameter aperture diameter Z1-Z8 occurs, to maintain the same number of F for the focus position Fl.

[0085] 参照表1,表I示出了以数据阐明的存在八个不同的变焦位置Zl、Z2、Z3、Z4、Z5、Z6、Z7和Z8以及三个不同的焦点位置F1、F2和F3的设计的范围和多样性,实际上,这些数据为可移动的变焦透镜组G2和可变形状的光学表面21提供了二十四(8X3 = 24)个不同的位置组合。 [0085] Referring to Table 1, Table I shows the data stated in the presence of eight different zoom position Zl, Z2, Z3, Z4, Z5, Z6, Z7 and Z8 as well as three different focus positions F1, F2, and F3 The design of the scope and diversity, in fact, the data for the optical surface of the movable zoom lens group G2 and the variable shape provided 24 (8X3 = 24) different combinations of position 21.

[0086] 在546.1纳米波长处,变焦透镜系统60在焦点位置Fl处对于变焦位置Z1-Z8的焦距分别为5.89,7.50、11.25、15.00、18.75,30.00,41.25 和45.0Omm0 在546.1 纳米波长处,对于数据位置Z1-Z8的焦距所对应的F数分别为2.80,2.90,3.05,3.25,3.45,3.70,3.95和4.00。 [0086] In the 546.1 nanometer wavelength, the zoom lens system 60 at the focal point position Fl respectively 5.89,7.50,11.25,15.00,18.75,30.00,41.25 and 45.0Omm0 at 546.1 nanometer wavelength for the focal length of the zoom position of Z1-Z8, number F for the position data of the focal length Z1-Z8 corresponding respectively 2.80,2.90,3.05,3.25,3.45,3.70,3.95 and 4.00.

[0087] 对于焦点位置F1,假设物面I位于无穷远,对于F2,物面I处于约1016.25mm的中间距离,而对于F3,物面I位于约378.75mm的近距离处(即,距离像面378.75mm)。 [0087] For the focus position F1, I assumed that the object plane is located at infinity, for F2, approximately in the middle of the object plane I 1016.25mm distance, and for F3, the object plane I is located at a close distance of approximately 378.75mm (i.e., Range surface 378.75mm). 在3个焦点位置Fl、F2和F3中的每一个处,透镜组Gl和G3在变焦透镜组G2的整个移动范围内保持在相同的位置。 In three focus position Fl, F2 and F3 each at lens group Gl and G3 in the entire movement range of the zoom lens group G2 is maintained at the same position. 表2和表3提供了表面7和表面12的间隔值,表4提供了表面21对于变焦位置Z1-Z8和焦点位置F1-F3的曲率半径。 Tables 2 and 3 provide the surfaces 7 and 12 of the interval values, Table 4 provides a radius of curvature 21 for a zoom position Z1-Z8 and focal position F1-F3 surface.

Figure CN101896850BD00111

[0106] 可以理解,在极端焦点位置Fl与F3之间可以获得连续聚焦,在极端变焦位置Zl与Z8之间可以获得连续变焦,在所描述的聚焦和变焦范围内通过透镜系统60可以获得连续聚焦和变焦的任何组合。 [0106] will be appreciated, can obtain a continuous focus between extremes focus position Fl and F3, in the continuous-zoom can be obtained between the extreme Zoom Position Zl and Z8, within the scope of the focus and zoom lens system 60 as described can be obtained by continuous Any combination of focus and zoom.

[0107] 图2中所示出和表I中所规定的变焦透镜系统60对于透镜组Gl和G2分别具有54.30和-12.25mm的焦距。 [0107] The zoom lens system as shown and specified in Table I 60 shown in Figure 2 for the lens group Gl and G2, respectively, having a focal length of 54.30 and -12.25mm. 而且,由于液体之间的光学表面21的形状可变,透镜组G3具有可变焦距,该可变焦距在变焦位置Zl和焦点位置Fl处、以及变焦位置Z8和焦点位置F3处分别具有最小值+30.18mm和最大值+38.97mm。 Further, since the optical surface of the liquid between the variable shape 21, having a variable focal length lens group G3, the variable focal length in the zoom position Zl and focus position Fl at the zoom position and focus position F3 and Z8 each having a minimum value at + 30.18mm and maximum + 38.97mm. 图3A和3B中示出了变焦透镜系统60的液体单元LC,其中显示了液体之间的形状可变的光学表面21的来自表I的两个极值曲率半径。 3A and 3B is shown the liquid cell LC zoom lens system 60, which shows the two extreme radii of curvature from Table I, the shape of the liquid between the optical surface 21 of the variable. 在图3A和3B中,表面21的两个曲率半径分别约为-33.99和+115.80mm。 3A and 3B, the two radii of curvature of the surface 21 and are about -33.99 + 115.80mm. 在图3A和3B中,液体单元LC的两个极值焦距分别为-185.20和+630.97mm。 3A and 3B, the two extreme values of the liquid cell LC and a focal length of -185.20 + 630.97mm respectively. 这种差异发生在变焦位置Zl和焦点位置Fl处以及变焦位置Z8和焦点位置F3处。 This difference occurs in the zoom position Zl and focus position and zoom position at Z8 Fl and F3 at the focus position. 在该实施方式中,表面20、21和21、22之间的两种液体的体积随着可变表面形状的变化而变化。 In this embodiment, the volume of the two liquids between the surfaces 20 and 21, 22 with a variable surface shape changes. 然而,也可以通过使表面20、21和21、22之间的轴向间隔发生小的、相等但相反的改变,以保持每种液体的体积恒定。 However, it may be 20, 21 and 21, 22 by the axial surface interval between the occurrence of small, equal but opposite change to maintain a constant volume of each liquid.

[0108] 现在参照4A、4B、和4C,其中示出变焦透镜系统60具有处于不同位置的变焦透镜组、处于不同位置的液体单元中的可变表面的形状以及对于这些位置的光线踪迹。 [0108] Referring now to 4A, 4B, and 4C, there is shown a zoom lens system 60 having a different position of the zoom lens group, the shape of the liquid at different locations in the cell surface and variable light traces for those positions. 图4A表示了焦点位置Fl和变焦位置Z1,表I中以无穷远的焦点和约为5.9mm的较小焦距阐明了针对焦点位置Fl和变焦位置Zl的数据。 Figure 4A shows the focus position and zoom position Fl Z1, Table I to infinity focus and focal length of approximately 5.9mm smaller clarified the position data for the focus and zoom position Zl of Fl. 图4B以表I中的中间焦点和约11.3mm的焦距表示了焦点位置F2和变焦位置Z3。 Figure 4B focal length to Table I indicates the intermediate focus of about 11.3mm and the focus position F2 zoom position Z3. 图4C以表I中的近焦点和约44.8mm的焦距表示了焦点位置F3和变焦位置Z8。 Figure 4C to near focus Table I indicates the focal length of about 44.8mm focus position F3 and zoom position Z8.

[0109] 图4A、4B和4C示出了分别对于各自的变焦位置和焦点位置:Z1、Fl和Z3、F2和Z8、F3,具有可变光学表面21的相应的3个表面形状的变焦透镜组G2的3个轴向位置。 The zoom lens Z1, Fl and Z3, F2 and Z8, F3, having a variable optical surface shape of the corresponding three surfaces 21 of: [0109] Figures 4A, 4B and 4C show, respectively, for each zoom position and focus position Group 3 of the axial position of G2.

[0110] 图5A、5B和5C中给出了变焦透镜系统60的光学性能,其中以表I中所给出的变焦位置和焦点位置的三种不同组合,即作为代表性示例的(zi,Fl)、(Z3,F2)、和(Z8,F3),对于五个不同的场位置,以百分比)示出了基于衍射的的多色调制传递函数(“MTF”)数据(调制与空间频率的关系)。 [0110] Figures 5A, 5B and 5C shows the optical performance of the zoom lens system 60, three different combinations of the zoom position and the focal position of which are given in Table I, i.e., as a representative example of (zi, Fl), (Z3, F2), and (Z8, F3), for five different field position, expressed as a percentage) are shown based on the diffraction of polychromatic modulation transfer function ("MTF") data (modulation and spatial frequency relationship). 以两个数值给出所述场位置,即归一化的图像高度(_)和相对于光轴的实际物空间角度(度)。 In the two values given field position, i.e., the normalized image height (_) with respect to the optical axis and the actual object space angle (degrees). MTF百分比处于在图5A、5B和5C的右上角记录的波长和权重处,并以图形方式示出像面36上测量的切向(T)和径向(R)。 MTF is the percentage in Figures 5A, 5B and 5C wavelength and right of the upper right corner of the weight of the recording, and graphically illustrated on the surface 36 as measured tangential (T) and radial (R). 注意,切向和径向值在轴向场位置(轴)处是相等的并仅用一个图来描绘。 Note that the values in the tangential and radial position of the axial field (axis) are equal and at only one diagram to depict. 给定约6_的图像直径,所示出的最大空间频率为90周/mm,对探测器像素尺寸的选择可以提供至少闻达闻清电视(HDTV)分辨率,即1920个水平像素乘1080个竖直像素的高质量图像。 Given image diameter of about 6_ maximum spatial frequency illustrated for 90 weeks / mm, the detector pixel size selection can provide at least heard of Wen-definition television (HDTV) resolution, namely the level of 1920 pixels by 1080 vertical pixel image quality. 空间频率处的MTF是光学性能的相对标准的测量,其中数值“90周/mm”意味着在用于确定清晰度的图上每毫米90对黑白线。 MTF at the spatial frequency is relatively standard measurement of optical properties, wherein the numerical values "90 weeks / mm" means for determining the 90 pairs of lines per millimeter on a black and white clarity FIG. 最高的MTF值约为89%,处于对于变焦位置Zl和焦点位置F2的全径向场。 MTF highest value is about 89%, in position for zoom and focus position F2 Zl full radial field. 最低的MTF值约为58%,处于对于变焦位置Z2和焦点位置F3的全切向场。 MTF minimum value of approximately 58%, in position for zoom and focus position Z2 F3 full cut to the field. 最小相对照度约为75%,处于变焦位置Zl和焦点位置Fl。 The minimum contrast of about 75%, in the focus position and zoom position Zl Fl. 通常,相对照度值越高越好,因为低的数值意味着光在图片的角落减少。 Typically, the higher the value, the better the degree of contrast, because of the low value means that the light reduction in the corner of the picture. 对于现有技术的探测器而言,较高的全场相对照度是优选的,现有技术的探测器在所有区域中具有对光的恒定响应,并且在变焦过程中连同图像的改变忠实地重现图像角落中的阴影。 For the prior art detectors, the high contrast of the audience is preferred, the prior art light detector has a constant response in all areas, and in the process, along with changing the image zoom faithfully re reproduced image in the corner of the shadow. 小于50%的照度可能导致电子探测器中的阴影,但是对于胶片而言可能是可接受的。 Illuminance is less than 50% may result in the shadow electron detector, but for the purposes of the film may be acceptable. 最高正畸变为变焦位置Z3和焦点位置Fl处的+3.04%,最低负畸变为变焦位置Zl和焦点位置F3处的-2.98%。 Orthodontics becomes highest zoom position and focus position Fl Z3 at + 3.04%, -2.98%, the lowest negative distortion of the zoom position Zl and focus position at F3. 通常,所谓的透镜“呼吸”问题(但是可能在变焦透镜中更为普遍),即从远焦到近焦图像尺寸发生改变,在变焦透镜系统60中在变焦范围的短焦距处实际上是不存在的,而由于景深较大该问题在变焦范围的短焦距处最可能被注意到。 Typically, so-called lens "breathing" problem (but may be more prevalent in the zoom lens), i.e., change from near focus to far focus image size, in the zoom lens system 60 in a short focal length of the zoom range is not actually exist, and the problem due to the larger depth of field in the short focal length zoom range of the most likely to be noticed. 最低呼吸为变焦位置Zl和焦点位置F3处的-0.2%,最高呼吸为变焦位置Z8和焦点位置F3处的-19.5%。 Minimum breathing -0.2% zoom position Zl and focus position F3 at maximum breathing was -19.5% zoom position and focus position Z8 at F3. 呼吸是从无穷远焦点到所选择的焦点最大视场角的百分比变化。 Breathing is the focus from infinity to the percentage change in the focus of the largest field of view of the selected angle. 因此,在无穷远焦点(Fl)处,呼吸为零,因为它是参考视场。 Thus, at infinity focus (Fl) at breathing zero because it is a reference field of view.

[0111] 在25C (77 0F )的温度、标准大气压(760mm Hg)下以及在变焦透镜系统60中可获得的全孔径处给出全部的性能数据。 [0111] temperature at 25 C (77 0F), the standard atmospheric pressure (760mm Hg) at 60 and the zoom lens system in the full aperture available at all of the given performance data. 然而,变焦透镜系统60在0C至40C (32F至104 0F )的温度范围内的确提供了基本恒定的性能,例如MTF值,并且如果性能(MTF)的小幅下降是可以接受的,则操作温度范围可以扩展至-10C至50C (14 T至122 T )或更大。 However, the zoom lens system 60 in the 0 C to 40 C (32 F to 104 0F) temperature range does provide a substantially constant performance, such as MTF value, and if the performance (MTF) of a slight decline is acceptable , the operating temperature range can be extended to -10 C to 50 C (14 T to 122 T) or greater. 对于温度的变化,可以通过对变焦透镜组G2进行进一步的轴向调整或对接触的光学表面21的形状进行进一步的改变或者通过二者的结合实现最优性能。 For temperature changes, can be achieved by the zoom lens group G2 further axial adjustment or shape of the optical surface of the contact 21 for further changes or optimal performance through a combination of both. 这可以发生在所有的变焦及焦点位置。 This can occur in all of the zoom and focus position. 在约0C (32T)或(TC以下的低温下,为了避免结冰(形成固体),液体可能需要加热,或者采用与为了低温运行而将防冻剂添加到汽车散热器中的水中的相似方式,将液体替换为含添加剂的液体。然而,注意这些材料温度变化优选地不应显著改变液体的光学特性。 At about 0 C (32T) or (TC at low temperatures below, in order to prevent freezing (to form a solid), the liquid may require heating, or for use with low temperature operation and adding antifreeze to the water in the automotive radiator similar mode, the liquid is replaced with the additive-containing liquid. However, note that these materials change in temperature is preferably not significantly alter the optical properties of the liquid.

[0112] 尽管使用变焦透镜系统60的所述实施方式具有用于与6_直径(所谓的1/3英寸芯片传感器)一同使用的适当尺寸,但是该变焦透镜系统的尺寸可以适当地放大或缩小以与各种胶片和电子探测器图像形式一同使用。 [0112] While the use of the embodiment of the zoom lens system 60 has a diameter and 6_ (so-called 1/3 inch sensor chip) for use with a suitable size, but the size of the zoom lens system may be appropriately enlarged or reduced to be used with a variety of film and electronic image detector form.

[0113] 变焦透镜系统60的众多优点之一在于仅通过使用一个轴向移动变焦透镜组在大范围的焦距上提供变焦。 [0113] One of the many advantages of the zoom lens system 60 is that only one set of axial movement of the zoom lens by using the zoom in providing a wide range of focal lengths. 变焦透镜系统60的设计产生了具有高性能并且机械复杂性低于大多数传统高性能变焦透镜系统的透镜系统,大多数传统高性能变焦透镜系统需要至少两个可轴向移动的变焦透镜组和相应的机械装置。 The zoom lens system 60 is designed to produce a high-performance and mechanical complexity than in most conventional high-performance zoom lens system of the lens system, most of the conventional high-performance zoom lens system requires at least two axially movable zoom lens group and corresponding mechanical means. 变焦透镜系统60的独特透镜设计在大范围的焦距上提供聚焦而无需附加的可移动透镜组和相应的机械装置。 Unique lens design of the zoom lens system 60 in a wide range of focal length without the need to provide additional focusing movable lens group and the corresponding mechanical means. 所公开的变焦透镜系统60的设计是示例性的,其它设计落入本发明的范围内。 The disclosed design of the zoom lens system 60 is exemplary and other designs within the scope of the present invention. 通过上述描述和附图,本领域技术人员会了解到变焦透镜系统60的其它特征和优点。 By the foregoing description and drawings, those skilled in the art will understand that other features and advantages of the zoom lens system 60.

[0114]采用图像稳定的透镜系统中的液体光学元件 [0114] The image stabilizing lens system in the liquid optical element

[0115] 图6A和图6B示出采用液体以稳定图像的透镜系统的光学示意图。 [0115] Figures 6A and 6B shows a schematic view of the use of the liquid to the image stabilizing optical lens system. 图6A示出在YZ平面中的透镜系统,其中液体透镜单元70和71为离轴、偏心的并且沿Y轴轻微倾斜的。 Figure 6A shows a lens system in the YZ plane, wherein the liquid lens unit 70 and 71 is off-axis, eccentric and slightly inclined along the Y axis. 图6B示出在XZ平面中的透镜系统,其中液体透镜单元70和71沿X轴居中。 Figure 6B shows the lens system in the XZ plane, in which the liquid lens unit 70 and 71 along the X axis centered. 在该简化的透镜系统中,光从物空间穿过透镜元件72。 In this simplified lens system, the light passes through the lens element 72 from the object space. 在光圈的另一侧,光穿过液体透镜单元70和71。 On the other side of the aperture, the light passes through the liquid lens unit 70 and 71. 透镜元件73使光会聚在像面74上。 The lens element 73 so that the light is converged on the image plane 74.

[0116] 图6A中的光学示意图示出在YZ平面中倾斜或旋转透镜的影响。 [0116] Figure 6A is a schematic diagram illustrating an optical inclined in the YZ plane or the lens rotating impact. 如图所示,在YZ平面中倾斜透镜导致像面74上的图像上移或下移。 As shown, the tilt of the lens in the YZ plane leads to move up or down on the image on the image plane 74. 对液体透镜单元70和71进行定位,以便协同地控制液体透镜单元70和71以补偿YZ平面中透镜倾斜的影响。 The lens unit 70 and the liquid 71 is positioned, and 71 to cooperatively control the YZ plane of the lens to compensate for inclination of the liquid lens unit 70.

[0117] 图7A和图7B示出使用四个液体透镜单元以稳定图像的透镜系统80的光学示意图。 [0117] Figures 7A and 7B illustrate the use of four liquid lens unit in order to stabilize the image 80 of the optical lens system schematic. 透镜系统80可与照相机100—起使用。 Lens system 80 may be used with the camera 100 together. 图7A示出在YZ平面中的透镜系统80,且图7B示出XZ平面中的透镜系统80。 7A shows in the YZ plane of the lens system 80, and Figure 7B shows the XZ plane of the lens system 80. 透镜系统80包括第一固定物镜组81、第二移动透镜组82、光圈83、第三固定透镜组84、第一液体透镜单元85、第四固定透镜组86、第二至第五液体透镜单元86、88、89、90以及第五固定透镜组91。 Lens system 80 includes a first fixed lens group 81, the second movable lens group 82, an aperture 83, a third fixed lens group 84, the first liquid lens unit 85, the fourth lens group 86 is fixed, the second to fifth liquid lens unit 86,88,89,90 and a fifth lens group 91 is fixed. 图像在像面92上形成。 An image on the image plane 92 is formed. 液体透镜单元87和88沿y轴以相对方向偏置,且液体透镜单元89和90沿z轴以相对方向偏置。 Liquid lens unit 87 and 88 in opposite directions along the y-axis offset, and the liquid lens unit 89 and 90 in opposite directions along the z-axis offset. 因此,对液体透镜单元87和88的可变表面形状的控制提供图像沿I轴在像面92处的稳定性,对液体透镜单元89和90的控制提供图像沿X轴在像面92处的稳定性。 Therefore, the surface shape and variable control 88 of the liquid lens unit 87 provided along the I-axis in the image plane 92 of the image stability, the control unit 89 and the liquid lens 90 provides an image along the X-axis in the image plane 92 stability.

[0118] 图7A和图7B中所示的配置,示出沿z轴对准的液体透镜单元。 Configuration [0118] Figures 7A and 7B shown, illustrating the z-axis is aligned along the liquid lens unit. 可选地,除了沿着X轴或I轴偏移之外,液体透镜单元还可围绕z轴倾斜,或者液体透镜单元还可围绕z轴倾斜而不沿X轴和I轴偏移。 Alternatively, or in addition to the offset along the X-axis beyond the I-axis, the liquid lens unit may tilt about the z-axis, or the liquid lens unit may not offset about the z-axis is inclined along the X axis and the I axis. 沿X轴或I轴或沿两者使液体透镜单元偏移都增加系统80中透镜的物理直径。 Along the X-axis or along the I-axis or the offset between the liquid lens unit 80 are increased in the physical diameter of the lens system. 倾斜液体透镜单元可允许减小或消除可减小液体透镜单元物理直径的X和I方向上的偏移,并可允许更好的图像稳定。 Tilting the liquid lens unit may allow to reduce or eliminate the offset can be reduced liquid lens unit physical diameter direction on the X and I, and may allow better image stability.

[0119] 图7A和图7B中不含液体透镜单元的每个透镜组的光焦度和焦距如下:物镜组81为正且为+54.700mm,移动透镜组82为负且为-12.165mm,透镜组84为正且为+70.285mm,透镜组86为正且为+42.266mm,后透镜组91为正且为+19.147mm。 [0119] Figures 7A and 7B of each lens group and the focal length of the optical power of the liquid lens unit does not contain the following: an objective lens group 81 is positive and is + 54.700mm, the movable lens group 82 is negative and is -12.165mm, lens group 84 is positive and is + 70.285mm, lens group 86 is positive and is + 42.266mm, the rear lens group 91 is positive and is + 19.147mm.

[0120] 表5列出了图7A和图7B示出的透镜元件的一般配置。 [0120] Table 5 shows the general configuration of Figure 7A and 7B shows a lens element. 在25C (77 F )的温度以及标准大气压(760mm Hg)下,给出表5中的数据。 At 25 C (77 F) temperature and standard atmospheric pressure (760mm Hg), the data are given in Table 5. 焦距范围大致为6mm至45mm。 Focal length range of approximately 6mm to 45mm. 视场范围大致为56.7至7.7 (包括在无穷远焦点位置Fl的变形)。 Field of view is approximately 56.7 to 7.7 (including deformation of the infinity focus position Fl). 变焦比率大致为7.5倍(7.5: I)。 Zoom ratio is approximately 7.5 times (7.5: I). 使用16:9格式的图像尺寸大致为Φ6πιπι。 16: 9 format image size substantially Φ6πιπι. 焦点范围大致为无穷远(焦点位置Fl)至378.25_(焦点位置F3),是从物体到最近倍率透镜表面的顶点测得的。 Focus range is approximately infinity (focus position Fl) to 378.25_ (focus position F3), is measured from the object to the nearest vertex magnification lens surface obtained. 波段范围大致为486nm至656nm。 The wavelength range of 486nm to approximately 656nm. 透镜系统80提供从至少约15mm至45mm的焦距,在大致 1/4图片半高度以及1/8图片半宽度范围中的图像稳定。 Lens system 80 provides at least from about 15mm to 45mm focal length, image stabilization in a substantially half height and 1/4 picture 1/8 image half-width range.

[0121]表 5 [0121] Table 5

[0122] [0122]

Figure CN101896850BD00151
Figure CN101896850BD00161

[0124] 组87和88中的所有表面分别沿y轴偏离中心-4.3915mm和+4.3915mm,且组89和90中的所有表面分别沿X轴偏离中心-3.9888mm和+3.9888mm。 [0124] group of 87 and 88 in all the surfaces are along the y-axis and off-center -4.3915mm + 4.3915mm, and the group of 89 and 90 in all surfaces are offset along the X-axis center -3.9888mm and + 3.9888mm. 所有其余表面均排列在光轴上。 All remaining surfaces are arranged on the optical axis. 表面4、表面7和表面53的星号(*)表不他们为非球面。 Surface 4, the surface 7 and the surface 53 of the asterisk (*) do not form their aspherical. 表面4的系数为: Coefficient of the surface 4 as follows:

[0125] K =-0.5673 [0125] K = -0.5673

[0126] A =+0.9038X10_6 [0126] A = + 0.9038X10_6

[0127] B =+0.2657ΧΙΟ—8 [0127] B = + 0.2657ΧΙΟ-8

[0128] C =-0.1105X10, [0128] C = -0.1105X10,

[0129] D =+0.4301X10_13 [0129] D = + 0.4301X10_13

[0130] E =-0.8236X10_16 [0130] E = -0.8236X10_16

[0131] F =+0.6368X10, [0131] F = + 0.6368X10,

[0132] 表面7的系数为: Coefficient [0132] surface 7 is:

[0133] κ =+0.0000 [0133] κ = + 0.0000

[0134] A =+0.5886X10_4 [0134] A = + 0.5886X10_4

[0135] B =-0.5899X10_6 [0135] B = -0.5899X10_6

[0136] C =+0.8635X10_8 [0136] C = + 0.8635X10_8

[0137] D =-0.5189X10_1CI [0137] D = -0.5189X10_1CI

[0138] E =-0.1186Χ1(Γη [0138] E = -0.1186Χ1 (Γη

[0139] F =+0.1631X1(T13 [0139] F = + 0.1631X1 (T13

[0140] 表面53的系数为:[0141] Coefficient [0140] surface 53 is as follows: [0141]

Figure CN101896850BD00171

[0148] 变焦透镜系统80在焦点位置Fl处对于变焦位置Z1-Z8的焦距分别为6.0003、 [0148] In the zoom lens system 80 at the focus position Fl respectively 6.0003 for the zoom position of the focal length Z1-Z8,

7.6131、11.4304、15.2474、19.1105,30.4619,41.4244 和44.9809。 7.6131,11.4304,15.2474,19.1105,30.4619,41.4244 and 44.9809. 对于变焦位置Z1-Z8 的相应的F 数分别为2.80,2.90,3.05,3.25,3.45,3.70,3.95 和4.00。 For the F-number corresponding to the zoom position Z1-Z8 respectively 2.80,2.90,3.05,3.25,3.45,3.70,3.95 and 4.00.

[0149] 对于焦点位置F1,假定物面位于无穷远,对于焦点位置F2,物面处于约1016.25mm的中间距离,而对于焦点位置F3,物面位于约378.75mm的近距离处(S卩,距离像面378.75mm)。 [0149] For the focus position F1, assuming that the object surface at infinity and, for the focus position F2, the object plane in the middle of about 1016.25mm distance, and for the focus position F3, the object plane is located approximately 378.75mm at close range (S Jie, distance from the image plane 378.75mm). 透镜组81、84、86和91在变焦透镜组82的整个移动范围内保持在相同的位置。 Lens group 81,84,86 and 91 remain in the same position throughout the movement range of the zoom lens group 82.

[0150] 图8A、图8B和图8C为示出示例性的变焦位置和焦点位置的透镜系统80的光学示意图。 [0150] FIGS. 8A, 8B and 8C is a diagram showing an exemplary zoom position and focus position of an optical lens system 80 FIG. 在图8A中,针对焦点位置Fl (物平面位于无穷远)和变焦位置Zl (F数为2.80)配置透镜系统80。 In Figure 8A, for the focus position Fl (an object plane located at infinity), and zoom position Zl (F number 2.80) lens system 80 configuration. 在图8B中,针对焦点位置F2(物平面位于1016.25mm处)和变焦位置Z3(F数为3.05)配置透镜系统80。 In Figure 8B, for the focus position F2 (1016.25mm located at the object plane) and the zoom position Z3 (F number 3.05) lens system 80 configuration. 在图8C中,针对焦点位置F3(物平面位于378.75mm处)和变焦位置Z8 (F数为4.00)配置透镜系统80。 In Fig. 8C, for the focus position F3 (378.75mm located at the object plane) and the zoom position Z8 (F number 4.00) lens system 80 configuration.

[0151] 表6提供了对于焦点位置F1-F3和变焦位置Z1-Z8而言,透镜组81中最后一个透镜表面与透镜组82中第一个透镜表面的间隔值。 [0151] Table 6 provides for the focus position F1-F3 and zoom positions Z1-Z8, the final lens surface and the lens group 82 in the interval of values of the first lens group 81 of the lens surface.

[0152]表 6 [0152] Table 6

[0153] 81和82之间的间隔值 [0153] interval value between 81 and 82

[0154] [0154]

Figure CN101896850BD00172

[0155] 表7提供了对于焦点位置F1-F3和变焦位置Z1-Z8而言,透镜组82中最后一个透镜表面与光圈83的间隔值。 [0155] Table 7 provides for the focus position F1-F3 and zoom positions Z1-Z8, the lens group 82 in the interval value of the last lens surface and the aperture 83.

[0156]表 7 [0156] Table 7

[0157] 82和83之间的间隔值 [0157] interval values between 82 and 83

[0158] [0158]

Figure CN101896850BD00173

[0159] 表8提供了对于焦点位置F1-F3和变焦位置Z1-Z8而言,透镜系统80的光圈的直径。 [0159] Table 8 provides for the focus position F1-F3 and zoom positions Z1-Z8, the lens system 80 of the aperture diameter.

[0160]表 8 [0160] Table 8

[0161] 光圈直径 [0161] aperture diameter

Figure CN101896850BD00181

[0163] 表9-13提供了对于焦点位置F1-F3和变焦位置Z1-Z8而言,透镜系统80的液体透镜单元85、87、88和89的曲率半径。 [0163] Table 9-13 provides for the focus position F1-F3 and zoom positions Z1-Z8, the lens system 80 of the radius of curvature of the liquid lens unit 85,87,88 and 89.

[0164] 表9 [0164] Table 9

[0165] 液体透镜单元85的曲率 [0165] Liquid curvature of the lens unit 85

[0166] [0166]

Figure CN101896850BD00182

[0167]表 10 [0167] Table 10

[0168] 液体透镜单元87的曲率 [0168] Liquid curvature of the lens unit 87

[0169] [0169]

Figure CN101896850BD00183

[0170]表 11 [0170] Table 11

[0171] 液体透镜单元88的曲率 88 curvature [0171] Liquid lens unit

[0172] [0172]

Figure CN101896850BD00184

[0173]表 12 [0173] Table 12

[0174] 液体透镜单元89的曲率 [0174] Liquid curvature of the lens unit 89

[0175] [0175]

Figure CN101896850BD00185

[0176]表 13 [0176] Table 13

[0177] 液体透镜单元90的曲率 Curvature [0177] 90 of the liquid lens unit

[0178] [0178]

Figure CN101896850BD00186

[0179] 表9-13提供的值用于当图像稳定时且不需要对图像跳动进行校正的条件。 [0179] Table 9-13 provides values for when the image stable and does not require correction for image jitter conditions. 当检测到图像跳动时,调节液体透镜单元的曲率半径以进行补偿。 When detecting the image jitter, the radius of curvature of the liquid lens unit is adjusted to compensate. 表14提供了对于-0.5000度和0.5000度的X方向的示例性偏移以及0.4500度和-0.4500度的y方向的示例性偏移,在透镜系统80的焦点位置F2和变焦位置Z8处液体透镜单元85、87、88、89和90的曲率半径。 Table 14 provides an example of an offset for the X direction and 0.5000 -0.5000 degrees of exemplary offset and y directions 0.4500 -0.4500 degrees degrees and, in the lens system 80 and the focus position F2 of the liquid lens zoom position Z8 85,87,88,89 and 90 units of the radius of curvature.

[0180]表 14 [0180] Table 14

[0181] 变焦位置8和焦点位置2处的液体透镜单元稳定性 [0181] Stability of the liquid lens unit and the focal position of the zoom position 8 of the 2

[0182] y偏移X偏移 [0182] y offset X Offset

[0183](度) (度) 曲率85 曲率87 曲率88 曲率89 曲率90 [0183] (degrees) (degrees) curvature curvature 87 85 88 curvature curvature curvature 89 90

[0184] +0.5000 0.0000 -212.3139 58.4594 -275.2157 88.1999 78.5201 [0184] 0.0000 +0.5000 -275.2157 -212.3139 58.4594 88.1999 78.5201

[0185] -0.5000 0.0000 -212.3139 -3112.4429 45.3929 109.7978 121.1403 [0185] -0.5000 0.0000 109.7978 121.1403 45.3929 -212.3139 -3112.4429

[0186] 0.0000 +0.4500 -212.3139 128.0860 193.7925 40.6736 -1791.4692 [0186] 128.0860 193.7925 40.6736 0.0000 +0.4500 -212.3139 -1791.4692

[0187] 0.0000 -0.4500 -212.3139 84.8003 101.7532 -191.6639 43.2782 [0187] 0.0000 -0.4500 -212.3139 -191.6639 43.2782 84.8003 101.7532

[0188] 图9A、图9B、图9C和图9D为按照如表14所示配置的透镜系统80的光学示意图。 [0188] FIGS. 9A, 9B, 9C and 9D is configured according to Table 14. The optical lens system 80 shown in the schematic. 图9A示出对于+0.5000度的y方向偏移的图像稳定性。 9A shows image stability for y direction +0.5000 degrees offset. 图9B示出对于-0.5000度的y方向偏移的图像稳定性。 9B shows image stability for y direction -0.5000 degrees offset. 图9C示出对于+0.4500度的X方向偏移的图像稳定性。 9C shows image stability for X direction +0.4500 degrees offset. 图9D示出对于-0.4500度的X方向偏移的图像稳定性。 9D shows an image stability of the X-direction -0.4500 offset.

[0189] 表15提供了对于+1.5000度和-1.5000度的x方向的示例性偏移以及+1.2200度和-1.2200度的y方向的示例性偏移,在透镜系统80的焦点位置Fl和变焦位置Z4处液体透镜单元85、87、88、89和90的曲率半径。 [0189] Table 15 provides a degree and -1.5000 to +1.5000 x direction of the offset, and an exemplary example of an offset in the y direction and -1.2200 +1.2200 degrees, the lens system 80 and the zoom focus position Fl Z4 at the position of the liquid lens unit 85,87,88,89 and 90 of the radius of curvature.

[0190]表 15 [0190] Table 15

[0191] 变焦位置4和焦点位置I处的液体透镜单元稳定性 [0191] Liquid lens unit 4 and the stability of the zoom position at the focal position I

[0192] y偏移X偏移曲率85 曲率87 曲率88 曲率89 曲率90 [0192] y offset X offset curvature curvature 87 85 88 curvature curvature curvature 89 90

[0193](度) (度) [0193] (degrees) (degrees)

[0194] +1.5000 0.0000 -84.8892 51.5591 -271.8934 143.7170 72.8023 [0194] 0.0000 +1.5000 -84.8892 143.7170 72.8023 51.5591 -271.8934

[0195] -1.5000 0.0000 -84.8892 -762.4547 42.5934 103.3767 143.1168 [0195] -84.8892 -1.5000 0.0000 103.3767 143.1168 42.5934 -762.4547

[0196] 0.0000 +1.2200 -84.8892 140.6245 113.4484 43.9052 -341.3372 [0196] 0.0000 +1.2200 -84.8892 140.6245 113.4484 43.9052 -341.3372

[0197] 0.0000 -1.2200 -84.8892 86.3979 81.3499 -145.4669 46.5625 [0197] 0.0000 -1.2200 -84.8892 86.3979 81.3499 46.5625 -145.4669

[0198] 图10A、图10B、图1OC和图1OD为按照如表15所示配置的透镜系统80的光学示意图。 [0198] FIGS. 10A, 10B, Fig. 1OC and Fig 1OD is shown in Table 15 according to the configuration of an optical lens system 80 FIG. 图1OA示出对于-1.5000度的y方向偏移的图像稳定性。 Figure 1OA shows an image of stability for the y direction -1.5000 offset. 图1OB示出对于+1.5000度的y方向偏移的图像稳定性。 Figure 1OB shows an image stability for the y direction +1.5000 degrees offset. 图1OC示出对于+1.2200度的x方向偏移的图像稳定性。 Figure 1OC shows the degree of image stability for +1.2200 x-direction offset. 图1OD示出对于-1.2200度的X方向偏移的图像稳定性。 Figure 1OD shows image stability for the X direction -1.2200 degrees offset.

[0199] 在表5-15中给出的液体透镜单元数据的光焦度和焦距如下:第一单元85为负到正且为-185.198mm 到630.972mm,第二单元87 为正到负且为+280.924mm 到-4154.291mm,第三单元88为正到负且为+232.078mm到-1481.432mm,第四单元为正到负且为+221.613mm 到-792.587mm,以及第五单元90 为正到负且为+235.804mm 到-1859.801mm。 [0199] In Table 5-15 given data of the liquid lens unit optical power and the focal length as follows: a first unit 85 to the positive and negative for -185.198mm to 630.972mm, the second unit 87 to the negative and positive To + 280.924mm to -4154.291mm, the third unit 88 is positive to negative and is + 232.078mm to -1481.432mm, fourth unit of positive to negative and is + 221.613mm to -792.587mm, and 90 for the fifth unit positive to negative and is + 235.804mm to -1859.801mm.

[0200] 在图11A-11C、12A-12D以及13A-13D中给出透镜系统80的光学性能。 [0200] The optical performance of the lens system 80 is given in FIG. 11A-11C, 12A-12D and 13A-13D in. 图11A-11C与图8A-8C中示出的光学配置相对应。 Figure 11A-11C and the optical configuration in FIG. 8A-8C shown corresponds. 图12A-12D与图9A-9D中示出的光学配置相对应。 Figure 12A-12D and the optical configuration of Fig. 9A-9D correspond shown. 图13A-13D与图10A-10D中示出的光学配置相对应。 Figure 13A-13D and 10A-10D in FIG optical arrangement shown corresponds.

[0201] 以表5中所给出的变焦位置和焦点位置的三种不同组合,即作为代表性示例的(Z1,F1)、(Z3,F2)、和(Z8,F3),对于五个不同的场位置,以百分比(% )示出了基于衍射的的多色调制传递函数(“MTF”)数据(调制与空间频率的关系)。 [0201] Three different combinations of the zoom position and the focal position are given in Table 5, i.e., as a representative example of (Z1, F1), (Z3, F2), and (Z8, F3), for five different field positions, as a percentage (%) shows a transfer function ("MTF") based on the diffraction of polychromatic modulation data (frequency modulation and spatial relationships). 五个场位置(轴和四个角)以角度表示为x_y视场角。 Five field position (axis and four corners) angle is expressed as x_y FOV. MTF百分比处于在图11A-11C。 MTF is the percentage in FIG. 11A-11C. 12A-12D和13A-13D的右上角所给出的波长和权值处,并针对像面92上的X和y测量方向以图形方式示出。 Wavelength and weights at the upper right corner 12A-12D and 13A-13D are given, and for measuring the X and y directions on the image plane 92 is shown graphically.

[0202] 透镜系统80具有的畸变特征与具有略微增加的全场畸变(fullfielddistortion)的透镜系统60的畸变特征相似,由于液体透镜是偏心的,单元系统60的全场畸变略微地不对称。 [0202] The lens system 80 has a distortion characteristic of the distortion characteristic similar to the audience has a slightly increased distortion (fullfielddistortion) of the lens system 60, since the liquid lens is decentered, the system unit 60 of the audience distortion slightly asymmetrical. 透镜系统80基本上是非渐晕的,并且相应的相对照度非常高并与透镜系统60的照度相似。 The lens system 80 is substantially non-vignetting, and the corresponding contrast is very high and similar to the illumination lens system 60. 透镜系统80具有的呼吸特征基本上与透镜系统60的呼吸特征相似。 Respiration of the lens system 80 has a substantially similar characteristics and respiratory lens system 60.

[0203] 给定约6mm的图像直径,所示出的最大空间频率为60周/mm,对探测器像素尺寸的选择可以提供至少高达标清电视(SDTV)分辨率,即720个水平像素乘480个竖直像素的高质量图像。 [0203] diameter of about 6mm given image, the maximum spatial frequency illustrated for 60 weeks / mm, the detector pixel size selection can provide at least a high standard definition television (SDTV) resolution, ie 720 horizontal pixels by 480 a high-quality image vertical pixel. 在图11中,在长焦距处,在通常实际上没有远距离位置和中间距离位置即Fl和F2重要的近焦位置(Z8,F3),光学性能(MTF)减小至约55%。 In Figure 11, at the long focal length, in fact, usually do not have a remote location and intermediate distance position i.e. Fl and F2 important near focus position (Z8, F3), the optical performance (MTF) is reduced to about 55%. 然而,在远距离处稳定操作时,光学性能(MTF)维持在约60%以上。 However, at the time of steady operation at a long distance, the optical performance (MTF) is maintained at more than about 60%. 可移动的透镜组82在稳定期间可轴向移动,且液体透镜单元的可变曲率半径在稳定期间可独立的变化,这允许光学性能升至或超过大致相当于HDTV分辨率的90周/mm。 A movable lens group 82 during stationary axially movable, and the variable radius of curvature of the liquid lens unit in a stable period can vary independently, which allows the optical properties of raised or HDTV resolution exceeds roughly 90 weeks / mm .

[0204] 图12A-12D与图9A-图9D示出的光学配置相对应。 [0204] Figure 12A-12D and FIG. 9A- optical arrangement shown in Figure 9D corresponds.

[0205] 图13A-13D与图1OA-图1OD示出的光学配置相对应。 [0205] Figure 13A-13D and FIG 1OA- optical arrangement shown in Figure 1OD corresponds.

[0206] 图7-图10示出的实施方式利用液体透镜单元85来聚焦、变焦和热补偿;液体透镜单元87和88主要用于在y方向偏离的入射辐射的稳定;且液体透镜单元89和90主要用于在X方向偏离的入射辐射的稳定。 [0206] Figure 7 - 10 shows an embodiment of a liquid lens unit 85 to focus, zoom and thermal compensation; liquid lens units 87 and 88 is mainly used to stabilize the deviation in the y direction of the incident radiation; and the liquid lens unit 89 and 90 in the X direction primarily to stabilize the deviation of the incident radiation. 可移动的透镜组82主要提供变焦。 Movable zoom lens group 82 mainly provided. 在另一个实施方式中,可从系统中除去液体透镜单元85,并且所保留的液体透镜单元87、88、89和90可提供变焦、聚焦和稳定性。 In another embodiment, the liquid lens unit 85 may be removed from the system, and the liquid lens unit 87,88,89 and 90 may be retained to provide zoom, focus and stability. 液体透镜单元85还可由非液体透镜单元代替。 Liquid lens unit 85 can be replaced by a non-liquid lens unit. 而且,可允许可移动的透镜组82在稳定期间轴向移动,允许所有液体透镜单元的可变曲率半径在稳定期间变化,或允许以上两者。 Moreover, allows the movable lens group 82 during the stable axial movement, allowing all the variable radius of curvature of the liquid lens unit changes during stabilization, or allow both. 这可改进透镜系统80的光学性能,特别在稳定期间视场角落处的光学性能。 This can improve the optical performance of the lens system 80, in particular the optical properties of the field at the corner during the stable.

[0207] 透镜系统80可采用一对液体透镜单元以提供单一方向的稳定,而非利用两对液体透镜单元。 [0207] The lens system 80 may be a liquid lens unit to provide a stable single direction, rather than the use of two liquid lens unit. 例如,当水平方向的图像跳动可忍受时,则可期待减小垂直的图像跳动。 For example, when the image horizontally beating tolerable, you can expect to reduce the vertical image beating.

[0208] 在某种程度上,液体透镜单元偏移光轴的尺寸决定液体透镜单元可提供的稳定量。 [0208] In a way, the liquid lens unit size determines the amount of shift of the optical axis of the lens unit may be a stable liquid supplied. 然而,随着液体透镜单元远离光轴有效孔径直径减小,在一个实施方式中,第一对液体透镜单元偏移光轴的量与第二对液体透镜单元偏移的量不同。 However, as the liquid lens unit effective aperture diameter decreases from the optical axis, in one embodiment, a first lens unit of liquid of different optical axis shift amount of the second lens unit liquid amount of the offset. 因为偏移增加,所以第一对液体透镜单元可提供垂直方向的较大稳定,而因为相对光轴的偏移量减小,所以第二对液体透镜单元提供在水平方向上较小的稳定但是较大的孔径。 Since the offset increases, the first lens unit to provide liquid vertical large stable, since the relative offset of the optical axis is reduced, so the second lens unit to provide liquid in the horizontal direction but a small stability larger pore size.

[0209] 可使用不同类型的传感器检测透镜系统的移动。 [0209] can be used to move different types of sensors detecting the lens system. 例如,可使用角速度传感器、压电陀螺传感器、加速度传感器或光检测传感器来检测移动。 For example, the angular velocity sensor, piezoelectric gyro sensors, acceleration sensors or light detecting sensor to detect movement. 通过引用并入本文的美国第6,092,700号专利公开了检测移动的系统的示例。 Incorporated herein by reference, U.S. Patent No. 6,092,700 discloses an example of a movement detection system.

[0210] 移动传感器将信息提供至确定液体透镜单元85、87、88、89和90的适合的曲率半径的控制器。 [0210] the mobile sensor will provide information to determine the liquid lens unit 85,87,88,89 and the controller 90 of a suitable radius of curvature. 控制器还确定透镜组82的适合位置。 The controller also determines the appropriate position of the lens group 82. 通过引用全文合并与此的公开号为2006/0045504的美国专利申请,公开透镜系统的控制器。 By reference in its entirety with this combined Publication No. 2006/0045504 U.S. Patent Application, Publication of the lens system controller. 通过引用全文合并与此的第6,987,529号美国专利公开控制透镜系统的另一示例。 By reference in its merger with this U.S. Patent No. 6,987,529 discloses another example of control of the lens system.

[0211] 可预先确定用于控制液体透镜单元半径的适合的电子信号的电平,并将其置于查找表中。 [0211] can be determined in advance for the level control of the liquid lens unit radius suitable electronic signals, and placed in a lookup table. 可选地,模拟电路或数字电路和查找表的组合可生成适合的信号电平。 Alternatively, analog circuitry or digital circuitry, and a combination of lookup tables can be generated for the signal level. 在一个实施方式中,用公式确定适合的电子信号电平。 In one embodiment, the formula used to determine the appropriate electronic signal level. 沿着多项式的点可被存储在查找表中,或多项式可由电路实施。 Points along the polynomial can be stored in a lookup table, or polynomial by circuit implementation.

[0212] 虽然附图示出了变焦透镜的图像稳定,但是图像稳定还适合其他辐射控制装置,例如固定的聚焦透镜、变焦透镜、畸变透镜、光中继系统等等。 [0212] Although the drawings illustrate the image stabilizing zoom lens, the image stabilization control apparatus is also suitable for other radiation, such as a fixed focus lens, a zoom lens, lens distortion, optical relay system and the like.

[0213] 液体透镜单元还可与其他光学元件一起组合使用以实现稳定。 [0213] Liquid lens unit and other optical elements may also be used in combination in order to achieve stability. 例如,将液体透镜单元与棱镜成对使用以改进稳定性能。 For example, the liquid lens unit and the prism used in pairs to improve stability. 透镜元件的移动可导致传感器上图像位置的移动、传感器上图像的倾斜或离心移动。 Moving lens elements can lead to moving the location of the image sensor, tilt sensor image or centrifugal movement. 液体透镜单元可用于补偿传感器上图像的移动,且其他透镜单元可补偿离心移位或补偿倾斜和离心两者。 Liquid lens unit can be used to move the image sensor to compensate, and the other lens unit to compensate for centrifugal shift or compensate both tilt and centrifugation. 传感器可具有额外像素,以及移动检测算法、加速表或陀螺仪,这些可用于确定像素上图像的位置并因此补偿图像移位。 Sensor may have additional pixels, and a mobile detection algorithm, accelerometer or gyroscope, can be used to determine the position of these pixels of the image and thus compensate the image shift.

[0214] 应该注意,对于本领域技术人员而言,各种改变和修改是显而易见的。 [0214] It should be noted, for the skilled in the art that various changes and modifications are apparent. 这些改变和修改应理解为包含在由所附权利要求限定的本发明的范围内。 Such changes and modifications should be understood as included within the scope defined by the appended claims of the present invention.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2007/0263293 Title not available
US693680917 Mar 200430 Aug 2005Nokia CorporationMethod and device for lateral adjustment of image
Classifications
International ClassificationG02B27/64, G02B26/02, G02B3/14
Cooperative ClassificationG02B15/16, G02B26/004, G02B27/646, G02B3/14
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