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Publication numberCN101821658 A
Publication typeApplication
Application numberCN 200880111594
PCT numberPCT/US2008/084232
Publication date1 Sep 2010
Filing date20 Nov 2008
Priority date4 Dec 2007
Also published asCA2703246A1, CA2703246C, CN101821658B, EP2217958A1, EP2217958B1, US8773766, US9658436, US20090141365, US20140254025, WO2009073387A1
Publication number200880111594.6, CN 101821658 A, CN 101821658A, CN 200880111594, CN-A-101821658, CN101821658 A, CN101821658A, CN200880111594, CN200880111594.6, PCT/2008/84232, PCT/US/2008/084232, PCT/US/2008/84232, PCT/US/8/084232, PCT/US/8/84232, PCT/US2008/084232, PCT/US2008/84232, PCT/US2008084232, PCT/US200884232, PCT/US8/084232, PCT/US8/84232, PCT/US8084232, PCT/US884232
Inventors艾恩A尼尔, 詹姆士H詹纳德
Applicant黑眼睛光学有限公司
Export CitationBiBTeX, EndNote, RefMan
External Links: SIPO, Espacenet
Zoom lens of the telephoto type having a liquid lens in a fixed group
CN 101821658 A
Abstract
A zoom lens (60) of the telephoto type comprising: an axially movable lens group (G2); an axially stationary lens group comprising one liquid lens cell (LC) comprising a first and a second contacting liquids, a contacting optical surface (21) between the contacting liquids having a variable shape; and an optical element that redirects the radiation axis; wherein the axially movable lens group (G2) and the axially stationary lens group (LC) are aligned on a common optical axis (38) and collect radiation emanating from the object side (1) of the zoom lens and deliver the radiation to the image side (36). In some embodiments, the system also provides compensation for undesirable thermally induced effects by adjustment of the zoom group and the variably shaped optical surface in the liquid lens cell.
Claims(8)  translated from Chinese
  1. 一种变焦透镜系统,包括:可轴向移动的变焦透镜组;轴向静止的透镜组,包括至少一个液体透镜单元,所述至少一个液体透镜单元包括第一接触液体和第二接触液体,接触液体之间的接触光学表面具有可变的形状;以及使辐射轴变向的光学元件;其中,所述可轴向移动的变焦透镜组和所述轴向静止的透镜组在公共的光轴上对准,并且所述可轴向移动的变焦透镜组和所述轴向静止的透镜组被布置以收集从所述变焦透镜系统的物侧空间发出的辐射并将所述辐射传送至像侧空间。 One kind of a zoom lens system, comprising: an axially movable zoom lens group; axially stationary lens group, comprising at least one liquid lens unit, said at least one liquid lens unit comprises a first liquid and a second contact with the liquid in contact, the contact the contact between the optical surface of the liquid has a variable shape; and the optical element radiation axis change direction; wherein the axially movable zoom lens group and said axially stationary lens group on a common axis aligned and axially moving the zoom lens group and said stationary lens group being axially arranged to collect radiation emitted from the object side and the space of the zoom lens system of the radiation transmitted to the image side space .
  2. 2.权利要求1所述的变焦透镜系统,其中,所述使辐射轴变向的光学元件包括反射镜。 The zoom lens system according to claim 1, wherein said optical element comprises a radiation axis redirecting mirror.
  3. 3.权利要求1所述的变焦透镜系统,其中,所述使辐射轴变向的光学元件包括棱镜。 The zoom lens system according to claim 1, wherein said optical element comprises a radiation axis redirecting prism.
  4. 4. 一种变焦透镜系统,包括: 可移动的透镜组;液体单元透镜组;以及使辐射轴变向的光学元件。 4. A zoom lens system, comprising: a movable lens group; and redirecting the radiation axis optical element; liquid lens cell group.
  5. 5.权利要求4所述的变焦透镜系统,其中,所述可移动的透镜组、所述液体单元透镜组以及所述使辐射轴变向的光学元件在公共的光轴上对准。 The zoom lens system according to claim 4, wherein said movable lens groups, the lens group unit and the liquid so that the radiation axis redirecting optical elements aligned on a common optical axis.
  6. 6. 一种照相机系统,包括:变焦透镜,包括可移动的透镜组、液体单元透镜组以及使辐射轴变向的光学元件; 图像捕获元件,被定位在所述变焦透镜系统的焦点位置。 A camera system, comprising: a zoom lens including a movable lens group, a lens group and a liquid unit redirecting the radiation axis optical element; image capturing element is positioned at the focal position of the zoom lens system.
  7. 7 如权利要求6所述的照相机系统,其中,所述图像捕获元件是CCD。 7 A camera system according to claim 6, wherein the image capturing element is a CCD.
  8. 8.如权利要求6所述的照相机系统,其中,所述图像捕获元件是胶片。 8. A camera system according to claim 6, wherein the image capturing element is a film.
Description  translated from Chinese

具有在固定组中的液体透镜的摄远镜头类型的变焦透镜 It has a fixed set of liquid lens telephoto lens type zoom lens

[0001] 相关申请 [0001] RELATED APPLICATIONS

[0002] 本申请涉及并要求于2007年12月4号提交的第60/992,244号美国临时申请的优先权,该临时申请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 Serial No. 60 / 992,244 priority to US provisional application in December 4, 2007 submission, the provisional application is incorporated herein by reference and made a part of this specification.

背景技术 Background

技术领域 Technical Field

[0003] 本发明涉及采用液体光学器件以及辐射轴的变向的光学透镜系统。 [0003] The present invention relates to an optical system using a liquid lens optics and redirecting the radiation axis.

[0004] 相关领域的描述 [0004] DESCRIPTION OF RELATED ART

[0005] 历史上,成像装置已经使用两个或更多可移动变焦透镜组以提供变焦和不同的焦距。 [0005] Historically, the use of the image forming apparatus has two or more movable zoom lens group to provide a different zoom and focus. 还可能需要附加的透镜组以进行聚焦。 Also may require additional lens group for focusing.

[0006] 然而,在变焦和聚焦透镜系统中,存在与使用具有移动透镜组相关联的固有缺点。 [0006] However, in the zoom and focus lens systems, there are inherent disadvantages associated with using a movable lens group is associated. 具体地,具有移动透镜组意味着需要复杂的以机械方式移动的部件。 Specifically, the movable lens group having imply complicated mechanically moving parts. 每个可移动透镜组都需要支撑结构和驱动机构,如凸轮和电机,并且某些情况下还需要控制电子装置以便于进行运动。 Each movable lens group needs a support structure and drive mechanism, such as cams and the motor, and in some cases also need to control the electronic device in order to facilitate movement. 这种系统复杂性可能会增加尺寸、重量和成本,并且可能使系统操作在一定时期内不可靠。 This may increase the complexity of the system size, weight and cost, and can make the system operate in a given period are not reliable. 在具有至少两个可移动变焦透镜组的一些之前可获得的变焦透镜中存在这些缺点以及不希望的局限性,诸如焦距的受限范围、无法在整个焦距范围内进行充分地聚焦、无法在近处物体上聚焦、在整个焦距范围和聚焦距离上缺乏足够的光学性能。 Having at least two movable these disadvantages and limitations, there are some undesirable available before the zoom lens group of the zoom lens, such as a limited range of focal lengths, can not be sufficiently focused over the entire focal length range, could not in the past focus on an object at the lack of adequate optical performance over the entire focal length range and focus distance. 需要机械复杂性较低但性能高的变焦透镜系统。 It requires less mechanical complexity but high performance zoom lens system.

发明内容 DISCLOSURE

[0007] 液体透镜单元在腔中包括两种或更多种流体。 [0007] Liquid lens unit comprises two or more fluids in the cavity. 这些流体接触以形成通过例如电节点可变的表面。 These fluids such as electrical contacts to be formed by the surface of the variable nodes. 流体可以是例如一种或多种气体、一种或多种液体、或者一种或多种固体以及一种或多种液体的混合物。 The fluid may be, for example, one or more gases, one or more liquid, and one or a mixture of one or more liquid or more solid. 采用液体透镜单元来替换一个或多个移动透镜组产生用于光路的额外配置选择。 Using liquid lens unit to replace one or more movable lens groups to generate additional configuration options for the optical path. 用液体透镜单元来替换移动透镜组产生更紧凑的系统。 Liquid lens unit to replace the movable lens group produce a more compact system. 然而,线性光学设计会产生比所期望的更长的透镜。 However, linear optical design produces a longer than desired lens. 液体透镜单元代替移动组的使用便于诸如折曲的光学元件的使用,以便减少透镜的物理长度。 Instead of using a liquid lens unit easy to use mobile groups such as bending optical element in order to reduce the physical length of the lens. 尽管通过透镜的光路的总长度可以保持不变,但是液体透镜单元提供在一个或多个方向上减小长度的用于对辐射轴进行变向的基本空间。 Although you can remain unchanged by the total length of the light path of the lens, but the liquid lens unit provides space for radiation decreases substantially change to the length of the shaft in one or more directions. 这允许在更小的照相机包装中使用更长的总体透镜长度。 This allows the use of a longer overall lens length of the camera in a smaller package. 例如,许多全自动照相机和移动电话照相机不具有用于较长透镜的大量空间。 For example, many automatic cameras and mobile phone cameras do not have a lot of space for a longer lens. 采用液体单元结合折曲或对辐射轴进行变向, 允许在这些较小的照相机包装中的更好的透镜系统。 Using liquid unit combination to bend or change to the axis of the radiation, allowing better lens system camera in these smaller packaging. 更大的照相机还能够得益于减小照相机包装长度,这对于不对辐射轴进行变向的透镜系统将会是需要的。 The camera can also benefit from the greater packing length of the camera is reduced, which does not change to the radiation axis of the lens system will be required.

[0008] 应该理解,本文所描述的实施方式旨在对本发明进行解释,本发明的范围不受限于所述的实施方式。 [0008] should be understood that the embodiments described herein are intended to explain the present invention, the scope of the present invention is not limited to the embodiments. 附图说明 Brief Description

[0009] 图1是照相机的方块图; [0009] FIG. 1 is a block diagram of the camera;

[0010] 图2是采用液体的变焦透镜系统的光学示意图。 [0010] FIG. 2 is a schematic view of an optical system of a liquid using a zoom lens.

[0011] 图3A和3B是图2的变焦透镜系统的液体单元的光学示意图,其中示出了液体之间的表面形状。 [0011] FIGS. 3A and 3B is a schematic diagram of a liquid unit optical zoom lens system of Figure 2, which shows the surface shape of the liquid.

[0012] 图4A、4B和4C是图1的变焦透镜系统的光学示意图,其中图示了用于产生不同焦距和对焦距离的变焦透镜组的不同位置和液体之间的表面形状。 [0012] Figures 4A, 4B and 4C are a schematic diagram of an optical system of the zoom lens of FIG. 1, which illustrates a method for generating a surface shape of the focal length of the zoom lens group and focus distance different positions and different liquid.

[0013] 图5A、5B和5C是图4A、4B和4C的变焦透镜系统的调制传递函数性能图。 [0013] Figures 5A, 5B and 5C are Figures 4A, 4B and 4C modulation of the transfer function of the zoom lens system performance FIG.

[0014] 图6是应用液体和单个折曲的变焦透镜系统的光学示意图。 [0014] FIG. 6 is an optical schematic diagram of a single application of liquid and folded zoom lens system.

[0015] 图7是应用液体和双折曲的变焦透镜系统的光学示意图。 [0015] FIG. 7 is a schematic diagram of the optical applications of liquid and double folded zoom lens system.

[0016] 图8A和8B是具有折曲的变焦透镜系统的光学示意图,其中图示了变焦透镜组的不同位置以及液体之间的表面形状。 [0016] Figures 8A and 8B are a schematic view of an optical zoom lens having a folding system, which illustrates a different shape of the surface position of the zoom lens group and between the liquids.

[0017] 图9A、9B和9C是变焦透镜系统的光学示意图,其中图示了辐射轴的变向,通过用于产生不同焦距和对焦距离的变焦透镜组的不同位置和液体之间的表面形状。 [0017] Figures 9A, 9B and 9C are schematic view of the zoom lens optical system, which is illustrated redirecting radiation axis, for generating a surface shape by a zoom lens group of different focal lengths and focus distances between different positions and the liquid .

具体实施方式 DETAILED DESCRIPTION

[0018] 在以下对优选实施方式的描述中参照了附图,附图形成描述一部分,并且在附图中以图示方式示出了本发明可得以实施的特定实施方式。 [0018] with reference to the following description of the preferred embodiments in the accompanying drawings forming a part of description and in the drawings shown by way of illustration specific embodiments of the present invention may be implemented. 可以理解,可以采用其它实施方式,并且在不背离本发明的范围的情况下可以进行结构上的改变。 It will be appreciated that other embodiments may be, and without departing from the scope of the present invention may be made to change the structure.

[0019]于 2007 年10 月8 号提交的且题为“Liquid Optics Zoom Lens andlmaging Apparatus (液体光学变焦透镜和成像装置)”的第60/783,338号美国临时专利申请(其全部内容通过引用并入本文),公开了一种应用液体光学器件来提供变焦和聚焦功能的变焦透镜系统。 [0019] on October 8, 2007 and filed entitled "Liquid Optics Zoom Lens andlmaging Apparatus (liquid optical zoom lens and the imaging device)," the No. 60 / 783,338 U.S. Provisional Patent Application (in its entirety by reference incorporated herein), discloses an application of liquid optics to provide zoom and focus functions of a zoom lens system. 用于变焦和聚焦的液体光学器件的使用提供了具有辐射轴的变向的可选透镜系统。 Use the zoom and focus for liquid optics offer optional lens system having radiation axis change direction. 首先描述应用液体光学器件来提供变焦和聚焦功能的示例性变焦透镜系统,然后描述应用辐射轴的变向的实施方式。 First, describe the application of liquid optics to provide zoom and focus functionality exemplary zoom lens system, then the application described embodiment, the radiation axis change direction.

[0020] 变焦透镜系统中的液体光学器件 [0020] The liquid zoom lens system optics

[0021] 图1图示了具有变焦透镜102的照相机100的方块图。 [0021] Figure 1 illustrates a block diagram of the camera 100 has a zoom lens 102. 变焦透镜是能够改变焦距的透镜元件的组件。 The zoom lens is able to change the focal length of the lens element assembly. 单个透镜元件可以固定就位,或者沿透镜本体轴向滑动。 Single lens element can be fixed in position, or the lens body axially slidable. 透镜组可包括一个或多个透镜元件。 Lens group may include one or more lens elements. 至少一个可移动透镜组提供物体放大的变化。 At least one movable lens group is enlarged to provide the object changes. 当至少一个可移动透镜组移动以完成放大时,焦平面的位置也可能移动。 When at least one movable lens group is moved to perform amplification, may also move the position of the focal plane. 至少一个其它可移动透镜组可移动以补偿焦平面的移动,从而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, so as to maintain a constant focal plane position. 还可以在透镜的放大倍数改变时通过使整个透镜组件移动以通过机械方式实现对焦平面移动的补偿。 You can also change when the magnification of the lens by moving the entire lens assembly in order to achieve compensation for moving the focal plane by mechanical means.

[0022] 单个透镜元件可由固相材料,如玻璃、塑料、结晶体、或半导体材料构成,或者单个透镜元件可通过使用液体或气体材料,如水或油构成。 [0022] The single lens element may be a solid phase material, such as glass, plastic, crystal, or semiconductor material, or by using a single lens element may be a liquid or gaseous material, such as water or oil composition. 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。 E.g., using a standard air, nitrogen or helium. 可选地,透镜元件之间的空间可以是真空。 Alternatively, the space between the lens element may be a vacuum. 当在本公开中使用“空气”时,应理解其在较宽泛的意义上使用并可包含一种或多种气体或者真空。 When using the "air" in this disclosure, it should be understood that it uses, and can contain one or more gas or vacuum in the broader sense.

[0023] 变焦透镜通常具有三个或更多移动透镜组以实现变焦和聚焦功能。 [0023] The zoom lens typically has three or more movable lens group in zooming and focusing functions. 机械凸轮可将两个可移动透镜组连接以进行变焦,第三可移动透镜可用于聚焦。 Mechanical cam can be connected to two movable lens group for zooming, the third movable lens can be used to focus.

[0024] 变焦范围部分地由可移动透镜组的移动范围决定。 [0024] zoom range determined in part by the movement range of the movable lens group. 较大的变焦范围需要用于透镜组移动的附加空间。 Larger zoom range lens group needs additional space for movement. 一个或多个可移动透镜组可由采用液体单元技术的透镜组所替代。 One or more movable lens groups may be using liquid cell technology lens group replaced. 由于液体单元不需要用于轴向移动的空间,因此可以减小包含可移动透镜组的透镜设计的长度。 Since the liquid is not required for the axial movement of the unit space, can be reduced in the lens design contains the length of the movable lens group. 可替换地,本用于可移动透镜组轴向移动的空间能够用于包括附加的光学元件或折曲。 Alternatively, for the movable lens group of the axial movement of the space it can be used to include additional optical elements or bent. 尽管液体单元不需要用于移动的空间,但可以是可移动透镜组的一部分。 Although not required for moving the liquid space unit, but may be part of the movable lens group.

[0025] 液体单元可用于变焦和聚焦。 [0025] Liquid unit can be used to zoom and focus. 在一个实施方式中,可移动透镜组与采用液体单元技术的透镜组一同使用。 In one embodiment, the movable lens group is used in conjunction with techniques using liquid unit lens group. 无需带有一个可移动透镜组的机械凸轮。 Without mechanical cam having a movable lens group. 不具有凸轮允许额外的移动。 No moving cam allow extra.

[0026] 一个或多个可移动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。 [0026] One or more movable lens groups and one or more liquid elements used together to achieve a zoom and focus. 单一的可移动透镜组和单一的液体单元可进行变焦、聚焦以及对于热效应的补偿。 Single movable lens group and a single liquid unit can operate the zoom, focus and compensate for thermal effects. 在一个实施方式中,聚焦系统至少具有第一透镜组和第二透镜组。 In one embodiment, the focusing system having at least a first lens group and the second lens group. 第一透镜组是相对较高倍率的,第二透镜组是相对较低倍率的,透镜倍率等于透镜焦距的倒数。 The first lens group is relatively high magnification, the second lens group is relatively low magnification, the magnification of the lens is equal to the reciprocal of the focal length of the lens. 第一透镜组包括传统的玻璃透镜或其它固体透镜,第二透镜组包括至少一个液体透镜。 The first lens group comprises a conventional glass lens or other solid lens, the second lens group comprises at least one liquid lens.

[0027] 液体透镜使用两种或更多种液体以形成透镜。 [0027] The liquid lens using two or more kinds of liquids to form the lens. 透镜的焦距部分地由液体之间的接触角度和液体折射率的差异决定。 The focal length of the lens part is determined by the difference between the contact angle between the liquid and the liquid's refractive index. 倍率变化的范围受到所采用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限制。 Change magnification range used by the difference in refractive index of the liquid and due to space constraints limited the scope of the radius of curvature of the surface at the junction between the liquid generated limit. 以引用方式并入本文的美国专利申请公开No. 2006/0126190公开了采用通过电润湿法产生液滴变形的透镜。 Herein incorporated by reference U.S. Patent Application Publication No. 2006/0126190 discloses the use of droplets generated by deformation electrowetting lens.

[0028] 现在提出的液体透镜系统的折射率差异至少约为0. 2,优选地至少约为0. 3,在一些实施方式中至少约为0. 4。 [0028] The difference in refractive index of the liquid lens system now proposed is at least about 0.2, preferably at least about 0.3, in some embodiments, at least about 0.4. 水具有约为1. 3的折射率,填加盐可允许折射率变化到约1.48。 Water has a refractive index of about 1.3, filled with salt allows variation in refractive index to about 1.48. 适当的光学油可具有至少约为1.5的折射率。 The oil may have a suitable optical refractive index of at least about 1.5. 甚至采用具有较高、或高或低和较低折射率的液体,例如较高折射率的油,倍率变化范围都仍受限。 Even the use of having a higher or lower refractive index of liquid high or low and, for example, a higher refractive index of oil, magnification range are still limited. 这种受限的倍率变化范围通常提供比可移动透镜组的放大倍数变化低的放大倍数变化。 This limited magnification range usually provide more than can change the magnification lens group moving low magnification change. 因此,在简单的变焦透镜系统中,为了在保持恒定的像面位置的同时提供变焦,可以通过一个可移动透镜组提供大部分的放大倍数变化,并且可以通过一个液体单元在放大倍数变化期间提供对像面处的离焦的补偿。 Thus, 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 most of the magnification change, and can be provided in a liquid unit during the magnification change out of focus at the image plane to compensate. 然而,应该注意,可以采用更多的透镜组或更多的液体单元,或者采用更多的透镜组和更多的液体单元。 However, it should be noted that the lens groups can be used more or more liquid elements, or the use of more and more liquid lens group unit.

[0029] 可移动透镜组可具有正的或负的倍率。 [0029] The movable lens group may have a positive or negative ratio. 液体单元可具有一定范围的可变倍率,其中倍率一直为正、一直为负或从正变化到负或相反。 Liquid unit may have a range of variable magnification ratio which has been positive, it has been negative or from plus to minus and vice versa. 可移动透镜组和液体单元的正确布置提供大于2倍且优选地大于3倍的扩展的变焦比,并且在整个变焦范围中提供良的成像质量。 Properly arranged movable lens group and a liquid unit provides more than 2 times, and preferably greater than 3 times the extended zoom ratio, and provide good image quality throughout the zoom range. 除了变焦以外,该布置还通过采用来自液体单元、可移动透镜组或液体单元和可移动透镜组两者,在扩展的变焦范围上提供不同物距处的聚焦。 In addition to zooming, the arrangement also means from the liquid, both may be movable lens group or a liquid and a movable lens group unit provides different focus at the object distance extended by the use of zoom range. 由液体单元、可移动透镜组或液体单元和可移动透镜组两者所提供的该附加的倍率变化可容易获得。 The liquid unit, can move both additional magnification change lens group or liquid unit and the movable lens group provided readily available. 由于一个可移动透镜组不必需要具有固定运动轨迹的凸轮,因此可以对可移动变焦透镜组的位置进行调整以进行变焦和聚焦。 Since a movable lens group does not necessarily require having a cam fixed trajectory, so you can make adjustments to the position of the movable zoom lens group for zooming and focusing. 通过采用可移动透镜组和液体单元以进行变焦和聚焦实现了高性能成像。 By using the movable lens group and a liquid unit for zoom and focus to achieve a high-performance imaging.

[0030] 还可以用至少一个液体单元替换可移动透镜组。 [0030] can be replaced with a movable lens group with at least one liquid unit. 这样可能会增加光学系统的复杂性并可能使光学系统具有其它缺点,如减少的放大倍数变化。 This may increase the complexity of the optical system and may make the optical system has other disadvantages, such as the reduction magnification change.

[0031] 图1还图示了控制透镜中的透镜组102的移动和操作的透镜控制模块104。 [0031] Figure 1 also illustrates the control of the lens in the lens moving and operating lens group 102, the control module 104. 控制模块104包括控制液体透镜单元中的曲率半径的电子线路。 The control module 104 includes a liquid lens unit control electronic circuits radius of curvature. 电子线路还可控制可移动透镜组的位置。 Electronic circuit can also control the position of the movable lens group. 可预先确定用于各种焦点位置和变焦位置的合适的电子信号水平并将其置于查找表中。 Can be pre-determine the appropriate levels of various electronic signals focus position and zoom position and place it in the lookup table. 可替换地,模拟线路或线路与查找表的组合可以产生合适的信号水平。 Alternatively, a combination of lines or analog lines and look-up table can generate the appropriate signal level. 在一个实施方式中,使用多项式来确定合适的电子信号水平。 In one embodiment, using a polynomial to determine the appropriate electronic signal levels. 可将沿多项式的点存储在查找表中,或者可以通过电路实现多项式。 It may be in the lookup table, or polynomial polynomial point along memory through the circuit.

[0032] 在对液体之间表面的曲率半径或可移动透镜组的位置或表面的曲率半径和可移动透镜组的位置两者进行的控制中还可以考虑热效应。 [0032] In the control of both the position of the radius of curvature radius of curvature of the surface between the liquid or the position of the movable lens group or surface and a movable lens group conducted thermal effects can also be considered. 多项式或查找表可包括有关热效应的附加变量。 Polynomial or lookup table may include additional variables related to thermal effects.

[0033] 控制模块104可包括用于特定变焦设定或焦距的预设控制。 [0033] The control module 104 may include a specific focal length of the zoom setting or preset control. 这些设定可由使用者或照相机制造商存储。 These settings can be stored in the user or the camera manufacturer. [0034] 图1还图示了接收与外界物体相对应的光学图像的图像捕获模块106。 [0034] Figure 1 also illustrates the receiver with the outside world object corresponding to the optical image of the image capture module 106. 图像沿穿过透镜102的光轴传输到图像采集模块106。 Passing through the lens 102 along the optical axis of the image transmitted to the image acquisition module 106. 图像捕获模块106可使用多种形式,如胶片(例如,生胶片或静态影像胶片)、或电子图像检测技术(例如,CCD阵列、CMOS设备或视频图像采集电路)。 Image capture module 106 may be used in various forms, such as film (e.g., film or still image raw film), or an electronic image detection technique (e.g., CCD arrays, CMOS devices, or video image acquisition circuit). 光轴可以是直线的或可以包括折曲或者辐射轴的其他变向。 Optical axis can be linear or may include bent shaft or other change to the radiation. 应该理解的是本文使用的折曲意在具有宽泛的解释。 It should be understood that as used herein is intended to bend having a broad interpretation. 可以利用对辐射轴进行变向的多种光学元件,并且本发明的范围不应限制为特定类型的光学元件。 You can use a variety of optical radiation axis element change direction and scope of the invention should not be limited to a specific type of optical elements.

[0035] 图像存储模块108例如将图像保持在板载存储器中或保持在胶片、磁带或磁盘上。 [0035] The image storage module 108 such as the image held in the onboard memory or maintained on the film, magnetic tape or disk. 在一个实施方式中,存储介质是可移除的(例如,闪存、胶卷盒、磁带盒或磁盘)。 In one embodiment, the storage medium is removable (e.g., flash memory, cartridge, cassette or disk).

[0036] 图像传输模块110提供将所捕获的图像传输至其它装置。 [0036] image transmission module 110 provides the captured image transmission to other devices. 例如,图像传输模块110 可以使用一种或多种连接,如USB接口、IEEE 1394多媒体连接、以太接口、蓝牙无线连接、 IEEE 802. 11无线连接、视频分量连接、或S-视频连接。 For example, image transmission module 110 may use one or more connections such as USB ports, IEEE 1394 multimedia connection, Ethernet port, Bluetooth wireless connection, IEEE 802. 11 wireless connection, component video connection, or S- video connection.

[0037] 照相机100可以实现为多种方式,如摄像机、移动电话照相机、数字照相机、或胶片照相机。 [0037] The camera 100 may be implemented in various ways, such as video cameras, mobile phone cameras, digital cameras, or film camera.

[0038] 现在通过设计示例对变焦透镜的实施方式进行描述。 [0038] Now examples of embodiment by designing the zoom lens will be described. 首先参照图2,每个透镜元件均由跟有数字从1到20的文字“E”表示,尽管显示了每个透镜元件的一般构造,但是每个透镜表面的实际半径在以下的表1中列出。 Referring first to Figure 2, each lens element is followed by a number from 1-20 characters of "E" indicates that although shows the general structure of each lens element, but the actual radius of each lens surface in the following Table 1 listed. 透镜、物体、光圈装置(stop)或光圈和图像表面由数字从1到36表示。 Lens, objects, iris device (stop) or aperture and the image surface by a digital representation from 1-36. 3个透镜组在图2中由跟有数字从1到3的文字“G”表示,液体透镜单元由字母“LC”表示并包括光学表面19到23。 3 in FIG. 2 lens groups followed by the numbers from 1 to 3 characters "G" represents, the liquid lens unit by the letter "LC" and includes the optical surface represented 19-23. 光轴在图2中由数字38表示。 In Figure 2, the optical axis represented by the numeral 38.

[0039] 每个透镜元件均具有由单独但连续的表面数表示的该透镜元件的相反表面,例如,如图2中所示,透镜元件El具有透镜表面2和3,透镜元件E9具有透镜表面17和18, 等等。 [0039] Each lens element of the lens elements each having a separate but consecutive surface number indicates the opposite surface, e.g., shown in FIG. 2 El lens elements having lens surfaces 2 and 3, the lens element having a lens surface E9 17 and 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1 表示,实像表面由数字36表示。 Location object to be imaged with special focus due to their distance on by a vertical line and numbers located on the optical axis 38 on 1, said the real image surface is represented by the numeral 36. 除了透镜表面4和8是非球形、非平面的非球面而是相对于光轴转动对称的,所有的透镜表面都是球形或平面的。 In addition lens is an aspheric surface 4 and 8, but is non-planar aspheric rotational symmetry with respect to the optical axis, all the lens surfaces are spherical or planar.

[0040] 在描述透镜元件的详细特征之前,为变焦透镜系统60,对透镜组及其轴向位置和移动、以及液体透镜单元和接触液体表面形状的变化进行概括的描述。 [0040] Before describing the detailed characteristics of the lens element, of the zoom lens system 60, and the axial position of the lens group and movement of the contact surface of the liquid and the cell shape changes of the liquid lens and perform general description.

[0041] 将每个透镜组的正倍率或负倍率定义为焦距的倒数。 [0041] The magnification of each lens group of positive or negative ratio is defined as the reciprocal of the focal length. 所得到的每个透镜组的光学倍率如下:物镜组Gl为正,变焦透镜组G2为负,后透镜组G3为正且随着液体单元中的表面形状变化而从较低的正值变化到较高的正值。 The resulting optical magnification of each lens group is as follows: a positive lens group Gl, the zoom lens group G2 is negative, the rear lens group G3 is positive and with the surface of the liquid cell shape changes from a low value to change a higher value. 位于图2上部两端的带有箭头的水平箭头标志指示变焦透镜组G2可在两个轴向方向上移动。 Figure 2 is located in the upper horizontal arrow sign with an arrow indicating both ends of the zoom lens group G2 can be moved in both axial directions.

[0042] 尽管在图2中仅物理地示出了透镜元件,但是应该理解,提供机械装置和机构以支撑透镜元件并使可移动透镜组在透镜壳体或筒体中进行轴向移动。 [0042] Although in FIG. 2 only shows a physical lens elements, it should be understood that, to provide mechanical means and means for supporting the lens elements and the movable lens group movable in the axial direction of the lens housing or barrel. 另外可以理解,电子线路改变液体透镜单元中的形状可变化的光学表面的轮廓。 Also to be understood that the electronic circuit to change the contour of the optical surface of the liquid lens unit shape may change. [0043] 以下在表1中列出了用于上述变焦透镜系统60的透镜构造和制造数据。 [0043] The following lists the lens construction and fabrication data for the above-described zoom lens system 60 in Table 1 below. 以250C (77 F)和标准大气压(760mm Hg)给出表1中的数据。 To 250C (77 F) and standard atmospheric pressure (760mm Hg) data given in Table 1. 在整个说明书中,除了波长单位为纳米(nm)外,测量的单位都是毫米(mm)。 Throughout the specification, in addition to the wavelength in nanometers (nm), the measurement units are millimeters (mm). 在表1中,第一栏“项目”表示每个光学元件和每个位置,即,具有与图2中所使用的相同的数字或标记的物面、像面等。 In Table 1, the first column "item" represents each optical element and each location, i.e., having the same numerals as used in FIG. 2 or the body surface marker, such as noodles. 第二栏表示具有在图2中所使用的相同数字的光学元件(透镜)所属的“组”。 The second column shows the optical element having the same numbers used in FIG. 2 (lens) belongs to "group." 第三栏“表面”是图2中所示的物体的表面数字(图2中的线“1”和表1中的“物体”)、光圈装置(光圈)13和透镜的实际表面的每一个的列示。 The third column "surface" view of a surface figure (Figure 2 line "1" and Table 1 in the "object") of the object shown in Figure 2, each aperture means (aperture) 13 and the actual surface of the lens losses. 第四栏“焦点位置”表示对于变焦透镜系统60的3个典型的焦点位置(Fl、F2和F3),其中如以下将更全面描述的那样,在第三栏中所列示的表面中的一些之间的距离(分离)存在变化,并且在第三栏中所列示的表面21的曲率半径存在变化。 The fourth column "focal position" indicates the zoom lens system of three typical focal position (Fl, F2 and F3), wherein as more fully hereinafter described, in the third column 60 are listed the surface Some distance between the (separation) there is a change, and there is a change in the radius of curvature listed in the third column of the surface 21. 第五栏“分离”是该表面(第三栏)与下一表面之间的轴向距离。 The fifth column "Separation" is the axial distance between the surfaces (column 3) and the next surface. 例如,表面S2与表面S3之间的距离是1. 725mm。 For example, the distance between surface S2 and surface S3 is 1. 725mm.

[0044] 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示,其中负号(_)意指如图2所示地曲率半径的中心处于表面的左侧,“无穷大”意指光学平面。 [0044] The sixth column titled "radius" of the text is presented optical surface radius of curvature of each surface, wherein the minus sign (_) center of the radius of curvature as shown in FIG. 2 in the left side surface means "infinity" means optical plane. 表面4和8的星号(*)表示这些表面是非球面表面,为此“曲率半径”是基圆半径。 Asterisks surface 4 and 8 (*) is an aspherical surface expressed these surfaces, for "radius of curvature" is the radius of the base circle. 使用非球面表面提供了对变焦透镜中的像差的校正,并且实现了较小的总尺寸和较为简单的构造。 Aspheric surface provides a correction of the zoom lens aberrations, and to achieve a smaller overall size and relatively simple structure. 以下等式给出了非球面表面4和8的表面轮廓的公式和系数: The following equation gives the formulas and coefficients of aspheric surface contour surface 4 and 8:

[0045] <formula>formula see original document page 7</formula> [0045] <formula> formula see original document page 7 </ formula>

[0046]式中: [0046] where:

[0047] c是表面曲率(c = Ι/r,其中r是曲率半径), [0047] c is the surface curvature (c = Ι / r, where r is the radius of curvature),

[0048] y是从X轴和Y轴测量的表面的径向孔径高度,其中: [0048] y is measured from the X-axis and Y-axis radial height of the surface of the aperture, wherein:

[0049] y = (X2+Y2)1/2 [0049] y = (X2 + Y2) 1/2

[0050] κ是二次曲面系数, [0050] κ is conicoid coefficient,

[0051] A、B、C、D、E和F分别是第4、第6、第8、第10、第12和第14阶变形系数, [0051] A, B, C, D, E and F are the 4th, 6th, 8th, 10th, 12th and 14th order deformation coefficient,

[0052] z是对于给定y值的表面轮廓位置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, [0052] z is the position of the surface profile for a given value of y, or along the surface contour of the surface of an optical axis from the pole (i.e. axial vertex) of the measurement position,

[0053] 表面4的系数为: Coefficient [0053] The surface 4 is:

[0054] κ = -0. 6372 [0054] κ = -0. 6372

[0055] A =+0. 9038 XlCT6 [0055] A = + 0. 9038 XlCT6

[0056] B =+0. 2657 XlCT8 [0056] B = + 0. 2657 XlCT8

[0057] C =-0. 1105X10, [0057] C = -0. 1105X10,

[0058] D = +0. 4301 X IO-13 [0058] D = +0. 4301 X IO-13

[0059] E = -0. 8236 X IO-16 [0059] E = -0. 8236 X IO-16

[0060] F =+0. 6368X10, [0060] F = + 0. 6368X10,

[0061] 表面8的系数为: Coefficient [0061] surface 8 is:

[0062] κ = +0. 0000 [0062] κ = +0. 0000

[0063] A =+0. 5886 XlCT4 [0063] A = + 0. 5886 XlCT4

[0064] B =-0. 5899 XlCT6 [0064] B = -0. 5899 XlCT6

[0065] C =+0. 8635 XlCT8[0066] D =-0 5189X10, [0065] C = + 0. 8635 XlCT8 [0066] D = -0 5189X10,

[0067] E = -0. 1186X10-11 [0067] E = -0. 1186X10-11

[0068] F = +0. 1631 X IO-13 [0068] F = +0. 1631 X IO-13

[0069] 表1的第七到第九栏有关于该表面(第三栏)与向图2中右侧的下一表面之间的“材料”,栏“类型”表示在这两个表面之间是否存在透镜(玻璃)或空的空间(空气) 或液体透镜(液体)。 The ninth column [0069] Table 1 concerning the seventh surface (column 3) and the "material" in the next surface between the right side of Figure 2, column "Type" in either of these surfaces between the existence of the lens (glass) or empty space (air) or a liquid lens (liquid). 玻璃和液体透镜由栏“代号”中的光学玻璃或液体表示。 Glass and liquid lens is represented by column "code" in the optical glass or liquid. 为了方便,所有的透镜玻璃都选自可从Ohara公司获得的玻璃,但是应该理解,可以使用任何等同的、类似的或适当的玻璃。 For convenience, all lenses are selected from glass from glass Ohara company received, it should be understood that any identical, similar or suitable glass. 而且,油的透镜液体选自可从CargilleLaboratories有限公司获得的液体,并且水通常可从各种水源获得,但是应该理解,可以使用任何等同的、类似的或适当的液体。 Furthermore, the lens liquid oil selected from liquid obtained from CargilleLaboratories Co., and water is usually available from a variety of sources, it should be understood that any identical, similar or suitable liquid. 表面20处的水液体在656. 27、589. 29、546. 07和486. 13纳米的波长下分别具有1. 331152,1. 332987,1. 334468和1. 337129的折射率。 Water, liquid surface 20 at 656. 27,589. 29,546. 07 and 486.13 nm wavelengths respectively 1. 331152,1. 332987,1. 334468 and 1.337129 refractive indices. 表面21处的油液体在656. 27,589. 29,546. 07 和486. 13 纳米的波长下分别具有1. 511501,1. 515000,1. 518002 和1. 523796的折射率。 Oil liquid surface 21 at 656. 27,589. 29,546. 07 and 486.13 nm wavelengths respectively 1. 511501,1. 515000,1. 518002 and 1.523796 refractive indices.

[0070] 表1的标题为“孔径”的最后一栏提供光线穿过的每个表面的最大直径。 Title [0070] Table 1 is "aperture" in the last column provides the maximum diameter for each surface through which the light. 对于所有的变焦和聚焦位置,在对于像面处的约6mm的最大图像直径的546. 1纳米的波长下以及F/2. 8至F/4. 0的F数下给出除光圈装置表面13以外的所有最大孔径。 For all the zoom and focus position, at 546.1 nm for a wavelength at the image plane of about 6mm diameter at a maximum image and the F number F / 2. 8 to F / 4. 0 is given in addition to the aperture surface of the device All 13 other than the maximum pore size. 表1中,对于变焦位置Zl和聚焦位置Zl,在546. 1纳米的波长下以及像面处F/2. 8的F数下给出了光圈装置表面13的最大孔径。 In Table 1, the focus position and zoom position Zl Zl, at a wavelength of 546.1 nm and the F / F number of 2.8 at the image plane of the aperture means is given maximum pore diameter surface 13. 在像面36处,以近似值给出了最大孔径。 36 in the image plane to approximation gives the maximum aperture.

[0071]表 1 [0071] Table 1

[0072]<table>table see original document page 9</column></row> <table> [0072] <table> table see original document page 9 </ column> </ row> <table>

[0073] 变焦透镜系统60设置有位于表面13处的光学光圈装置,该光学光圈装置控制在 [0073] The zoom lens optical system 60 is provided with aperture means located on the surface 13 of the optical iris control means

该位置光线可穿过孔隙的直径。 The position of the light can pass through the pore diameter. 光学光圈装置是物理光圈(或光阑)所处的位置。 The optical aperture means is the location of the physical aperture (or stop). 光圈位 Aperture position

于后透镜组G3前方并相对于该透镜组轴向静止。 On the front and rear lens group G3 with respect to the axially stationary lens group. 注意,在图4A中,边缘光线穿过光学光圈表面13的等值记号(tic mark)的轴线侧,使得变焦透镜系统在任何场位置、变焦位置和聚焦位置都不具有任何光束的渐晕。 Note that, in FIG. 4A, the light passes through the axis of the side edge contour surface 13 of the aperture of the optical mark (tic mark), so that the zoom lens system in any field position, zoom position and focus position does not have any vignetting of the light beam. 然而,注意,F数在所有的变焦和聚焦位置变化,并且光圈相应地打开或关闭。 However, note, F number in all the zoom and focus position changes, and opens or closes the aperture accordingly. 对于焦点位置Fl的变焦位置Z1-Z8处的光圈直径为6. 71,6. 39,5. 96、 5. 53,5. 18、4.84、4.63和4.61。 For the focus position Fl diameter of the aperture zoom position Z1-Z8 at the 6. 71,6. 39,5. 96, 5 53,5. 18,4.84,4.63 and 4.61. 这表明,位于13处的光圈应该随着焦距增大而关闭。 This indicates that the aperture 13 is located should be closed as the focal length increases. 与焦点位置Fl相对比,对于焦点位置F2和F3的变焦位置Z1-Z8处的光圈直径以小于0. 3mm直径的小量而发生改变,以保持与对于焦点位置F 1相同的F数。 And focus position Fl contrast, the aperture diameter of the focal position of the zoom position Z1-Z8 at F2 and F3 to less than 0. 3mm in diameter and a small amount of change, in order to maintain the same number of F to the focal position F 1.

[0074] 参照表1,为了说明设计的范围和多样性,数据中记录了8个不同的变焦位置Z1、 Z2、Z3、Z4、Z5、Z6、Z7和Z8以及3个不同的焦点位置Fl、F2和F3,这些数据实际上提供了用于可移动变焦透镜组G2和形状可变的光学表面21的24(8X3 = 24)个不同位置组合。 [0074] Referring to Table 1, in order to illustrate the design of the range and diversity of data recorded in eight different zoom positions Z1, Z2, Z3, Z4, Z5, Z6, Z7 and Z8 and three different focus position Fl, F2 and F3, which actually provides the data 21 of 24 (8X3 = 24) for different combinations of the movable zoom lens group G2 and the shape of the optically variable surface position.

[0075] 在546. 1纳米波长下,变焦透镜系统60在焦点位置Fl处的对于变焦位置 [0075] at 546.1 nm, the zoom lens system 60 at the focal position of the zoom position at Fl

焦距分别为5. 89,7. 50、11. 25、15. 00、18. 75,30. 00,41. 25 和45. OOmm0 在546. 1 纳米波长下,对于数据位置Z1-Z8的焦距的对应F数分别为2. 80、2. 90、3. 05、3. 25、3. 45、3. 70、3. 95 和4. 00。 5. 89,7 focal length respectively. 50,11. 25, 15. 00,18. 75,30. 00,41. 25 and 45. OOmm0 at 546.1 nm, the focal length of the data location of Z1-Z8 F corresponding numbers were 80, 2 2. 90,3. 05,3. 25,3. 45,3. 70,3. 95 and 4.00. [0076] 对于焦点位置F1,假设物面1位于无穷远,对于F2,物面1处于约1016. 25mm的中间距离,而对于F3,物面1位于约378. 75mm的近距离处(即,离开像面378. 75mm)。 [0076] For the focus position F1, assuming an object plane at infinity, the F2, an object plane in an intermediate distance of about 1016. 25mm, and for F3, located at a short distance at the object plane of about 378. 75mm (i.e., leaving the image plane 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 the three focus position Fl, F2 and F3 at each lens group Gl and G3 in the entire movement range of the zoom lens group G2 is kept in the same location. 表2和3提供了表面7和12的分离值,表4提供了表面21对于焦点位置Z1-Z8和F 1-F3的曲率半径。 Tables 2 and 3 provides a surface 7 and separation value 12 21 Table 4 provides a focal position F Z1-Z8 and the radius of curvature of the surface of the 1-F3.

[0077]表 2 [0077] Table 2

[0078] 对于表面7的分离值 [0078] For the surface 7 of the separation value

[0079] [0079]

表面焦点Zl Z2 Z3 TA Z5 Z6 Z7 Z8 7 Fl 0.08325.7132 13.7126 18.4633 21.6974 27.4007 30.5400 31.3096 7 F2 0.0902 5.7486 13.6468 18.3289 21.5154 27.0776 30.0174 30.7361 7 F3 0.0750 5.6942 13.4674 18.1217 21.3355 26.7467 29.5798 30.2701 Surface focus Zl Z2 Z3 TA Z5 Z6 Z7 Z8 7 Fl 0.08325.7132 13.7126 18.4633 21.6974 27.4007 30.5400 31.3096 7 F2 0.0902 5.7486 13.6468 18.3289 21.5154 27.0776 30.0174 30.7361 7 F3 0.0750 5.6942 13.4674 18.1217 21.3355 26.7467 29.5798 30.2701

[0080] 表3 [0080] Table 3

[0081] 对于表面12的分离值 [0081] For the surface 12 of the separation value

[0082] [0082]

表面 焦点 Zl Z2 Z3 Z4 Z5 Z6 Z7 Z8 Surface focus Zl Z2 Z3 Z4 Z5 Z6 Z7 Z8

~12 Fl 31.5294 25.8992~17.8996~13.1486~9.9140 4.21011.07010.3000 ~ 12 Fl 31.5294 25.8992 ~ 17.8996 ~ 13.1486 ~ 9.9140 4.21011.07010.3000

12 F2 31.5178 25.8581 17.9590 13.2762 10.0892 4.5268 1.5870 0.8729 12 F2 31.5178 25.8581 17.9590 13.2762 10.0892 4.5268 1.5870 0.8729

12 F3 31.5324 25.9120 18.1380 13.4831 10.2689 4.8577 2.0248 1.3384 12 F3 31.5324 25.9120 18.1380 13.4831 10.2689 4.8577 2.0248 1.3384

[0083]表 4 [0083] Table 4

[0084] 对于表面21的曲率半径 [0084] the radius of curvature of the surface 21

[0085] [0085]

表面 焦点Zl Z2 Z3 Z4 Z5 Z6 Z7 Z8 Surface focus Zl Z2 Z3 Z4 Z5 Z6 Z7 Z8

21 Fl -33.9902-40.9700-60.9667 -84.8892 -106.7630~-101.7297 -58.3998 -48.6792 21 F2 -34.3890 -42.0587 -65.5384 -101.1799 -154.9184 -370.2777 -263.5374 -212.3139 21 F3 -35.0134 -43.6001 -72.6330 -133.7178 -351.2333 214.4454 125.5481 115.8049 21 Fl -33.9902-40.9700-60.9667 -84.8892 -106.7630 ~ -101.7297 -58.3998 -48.6792 21 F2 -34.3890 -42.0587 -65.5384 -101.1799 -154.9184 -370.2777 -263.5374 -212.3139 21 F3 -35.0134 -43.6001 -72.6330 -133.7178 -351.2333 214.4454 125.5481 115.8049

[0086] 可以理解,在两端的焦点位置Fl与F3之间可以获得连续聚焦,在两端的变焦位置Zl与Z8之间可以获得连续变焦,在通过透镜系统60所描述的聚焦和变焦范围内可以获得连续聚焦和变焦的任何组合。 [0086] can understand, you can obtain a continuous focus between the focus position Fl and F3 at both ends between the two ends of the zoom position Zl and Z8 can obtain a continuous zoom, focus and zoom can be in the range of 60 through the lens system described obtain a continuous focus and zoom any combination. [0087] 图2中所示和表1中所列示的变焦透镜系统60具有分别对于透镜组Gl和G2的54. 30和-12.25mm的焦距。 [0087] FIG. 1 and Table 2 lists shown in a zoom lens system 60 has the lens group Gl and G2 of 54.30 and -12.25mm focal length respectively. 而且,由于液体之间的光学表面21的可变形状,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 shape of the optical surface of the liquid between the variable 21, having a variable focus lens group G3, the variable focal length zoom position Zl and focus position Fl at the zoom position and focus position F3 and Z8 respectively at a minimum +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1的两个极值曲率半径。 3A and 3B are shown LC liquid unit zoom lens system 60, which shows the shape of the liquid between the variable optical surface from the two extremes of the radius of curvature 21 of Table 1. 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, two radii of curvature of the surface are about 21 -33. 99 and +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 liquid cell LC are two extreme focal length -185 20 and +630. 97mm. 这种差异在变焦位置Zl 和焦点位置Fl处以及变焦位置Z8和焦点位置F3处发生。 This difference occurs in the zoom position Zl and focus position and zoom position Z8 at Fl and F3 at the focus position. 在该实施方式中,表面20、21和21、22之间的两个液体的体积随着可变表面形状的变化而变化。 In this embodiment, both the volume of the liquid between the surfaces 20, 21 and 21, with the surface shape of the variable changes. 然而,也可以通过使表面20,21和21、22之间的轴向分离发生小的且相等但相反的改变,保持每个液体的恒定体积。 However, it can also occur and small change by equal but opposite axial surfaces 20, 21 and 21 between the separation, each maintaining a constant volume of liquid.

[0088] 现在参照4A、4B、和4C,其中示出了变焦透镜系统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路线。 [0088] Referring now 4A, 4B, and 4C, there is shown a system 60 having a zoom lens position of the zoom lens at different groups, in a liquid form at different positions in the cell surface and variable light path for these locations. 图4A图示了焦点位置Fl和变焦位置Z1,为此表1中所记录的数据具有无穷远的焦点和约为5. 9mm的小焦距。 4A illustrates a focus position Fl and zoom positions Z1, this table 1 in the recorded data has infinity focus and about 5. 9mm small focal length. 图4B图示了来自表1中的中间焦点和约11. 3mm焦距的焦点位置F2和变焦位置Z3。 4B illustrates the focal position of about 11. 3mm focal length F2 and zoom position Z3 from Table 1, the intermediate focus. 图4C图示了来自表1中的近焦点和约44. 8mm焦距的焦点位置F3和变焦位置Z8。 Figure 4C illustrates the near focus from Table 1 and about 44. 8mm focus position F3 and a focal length of the zoom position Z8.

[0089] 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、F1和Z3、F2和Z8、 F3的具有相应的可变光学表面21的3个表面形状的变焦透镜组G2的3个轴向位置。 [0089] Figures 4A, 4B and 4C show, respectively, for each focus position and zoom position Z1, F1 and Z3, a zoom lens group having 3 corresponding to the surface shape of the optical surface 21 of the variable F2 and Z8, F3 of 3 axial position of the G2.

[0090] 图5A、5B和5C中给出了变焦透镜系统60的光学性能,其中以百分比(% )示出了对于以表1中所记录的变焦位置和焦点位置,即作为代表性示例的(Z1,F1)、(Z3,F2)以及(Z8,F3)的3种不同组合而得到的5个不同的场位置的基于衍射的多色调制传递函数(“MTF”)数据(调制相对空间频率)。 [0090] FIG. 5A, 5B and 5C shows the optical performance of the zoom lens system 60, in which the percentage (%) shows the zoom position and focus position recorded in Table 1, that is, as a representative example of 5 different field positions (Z1, F1), (Z3, F2) and (Z8, F3) three different combinations obtained based polychromatic diffraction modulation transfer function ("MTF") data (relative spatial modulation frequency). 场位置记录为两个数值,归一化的图像高度(mm)和相对于光轴的实际物空间角度(度)。 Field position is recorded as two numbers, the normalized image height (mm) and with respect to the optical axis of the actual object space angle (degrees). MTF百分比处于在图5A、5B和5C的右上角所记录的波长和权重处并以图形方式示出用于在像面36处的切向(T)和径向(R)。 MTF Percent in in Figures 5A, wavelength and right upper-right corner. 5B and 5C of the recorded weight at and shown graphically for cutting to the image plane 36 (T) and radial (R). 注意,切向和径向数值在轴向场位置(轴)处是相等的并仅以一个图形绘制。 Note that the values in the tangential and radial axial field position (shaft) are equal and only at a graphics rendering. 所示最大空间频率为90周期/mm,这样,给定约6mm的图像直径和对探测器像素尺寸的选择可以提供至少高达高清电视(HDTV)分辨率,即1920个水平像素乘1080个竖直像素的高质量图像。 The maximum spatial frequency is shown in 90 cycles / mm, so that a given image, and choose a diameter of about 6mm pixel size of the detector can provide at least as high definition television (HDTV) resolution that 1920 horizontal pixels by 1080 vertical high quality image pixels. 处于空间频率的MTF是光学性能的相对标准的测量,其中数值“90周期/mm”意味着位于用于确定清晰度的图上的每毫米90对黑线和白线。 MTF at the spatial frequency is relatively standard optical performance measure, including the value "90 cycle / mm" means for determining located 90 pairs of black and white lines per millimeter resolution chart. 最高的MTF值约为89%,处于对于变焦位置Zl和焦点位置F2的完全径向场。 Highest MTF value of approximately 89%, in the zoom position Zl and focus position F2 of the radial field entirely. 最低的MTF值约为58%,处于对于变焦位置Z8和焦点位置F3的完全切向场。 MTF minimum value of approximately 58%, in the zoom position and focus position Z8 totally tangential to the field F3. 最小的相对照度约为75%,处于变焦位置Zl和焦点位置F1。 Minimum contrast of about 75%, in the zoom position Zl and focus position F1. 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中减少。 Generally, the higher the better contrast values, because of the low value means that light decreases in the corner of the picture. 对于现有技术的探测器而言,高的完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,并且忠实地重现图像角落中的阴影以及在变焦过程图像的改变。 For the prior art detector, a high degree full field contrast is preferred, prior art detectors have a constant response to light in all regions, and to faithfully reproduce the image in the corner of the shadow as well as the zoom change process image. 小于50%的照明可能导致电子探测器中的阴影,但是对于胶片而言可能被接受。 Lighting less than 50% may result in the shadow of electron detector, but for the purposes of the film may be accepted. 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%。 Highest orthodontics becomes +3. 04% zoom position and focus position Fl Z3 at the lowest negative distortion -2. 98% zoom position Zl and focus position F3 at. 通常,所谓透镜的“呼吸”问题(但是可能在变焦透镜中更为普遍),其中从远焦到近焦图像的尺寸改变,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,而由于大的景深这种问题在变焦范围的短焦距处最可能被注意到。 Typically, "breathing" problem of the so-called lens (but may be more common in zoom lens), which focus from far to near focus image size changes, the zoom lens system 60 in the short focal length of the zoom range is not actually It exists, and such a problem due to the large 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%。 Lowest breathing -0. 2% zoom position Zl and focus position F3 at maximum breathing -19. 5% zoom position and focus position F3 Z8 at. 呼吸是从无穷远焦点到选定焦点的最大场角中的百分比变化。 Breathing is the percentage change in focus from infinity to a selected focal point of maximum field angle. 因此,在无穷远的焦点(Fl)处,呼吸为零,因为它是参考视场。 Therefore, the focus at infinity (Fl) at zero breathing, because it is the reference field.

[0091] 在25C (77 F)的温度、标准大气压(760mm Hg)下以及在变焦透镜系统60中可获得的全部孔隙处给出全部的性能数据。 [0091] temperature at 25 C (77 F), the standard atmospheric pressure (760mm Hg) at 60 and the zoom lens system available in all the pores of performance data is given at all. 然而,变焦透镜系统60在0C至40C (32 F至104 F)的温度范围内的确提供了基本恒定的性能,例如MTF值,并且如果可以接受性能(MTF)的小的下降,那么操作温度范围可以扩展至-10C至50C (14 F至122 F)或更多。 Does provide within However, the zoom lens system 60 at 0 C to 40 C (32 F to 104 F) temperature range a substantially constant performance, such as MTF value, and if acceptable performance (MTF) of a small fall, then the operating temperature range can be extended to -10 C to 50 C (14 F to 122 F) or more. 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二者的结合实现最优性能。 For temperature changes, it can be achieved by the zoom lens group G2 further optical axis adjustment or the shape of the contact surface 21 of the binding further changes or both to achieve optimum performance. 这可以发生在所有的变焦及聚焦位置。 This can happen at any zoom and focus position. 在约0C (32 F)或以下的低温,为了避免结冰(形成固体),液体可能需要加热或替换为含添加剂的液体,以与为了低温运行而将防冻剂添加到汽车散热器水中的相似方式。 At about 0 C (32 F) or below the low temperature, in order to avoid ice (solid form), the liquid may require heating or replace the additive-containing liquid to and for low temperature operation and will add to the car radiator antifreeze similar to the way water. 然而,注意这些材料温度优选地不应显著改变液体的光学特征。 However, note that these materials are temperature preferably should not significantly alter the optical characteristics of the liquid.

[0092] 尽管使用变焦透镜系统60的所述实施方式具有用于与6mm直径(所谓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。 [0092] Although the embodiments of the zoom lens system 60 has a diameter of 6mm (1/3 inch called sensor chip) used together with the appropriate size, but the size of the zoom lens system may be appropriately enlarged or reduced with the a variety of film and electronic detectors used together form an image.

[0093] 液体透镜单元可以具有有限的通光孔径直径。 [0093] liquid lens unit may have a finite aperture diameter. 如果使用足够小的探测器,则液体透镜单元可以位于探测器附近。 If you use a sufficiently small probe, the liquid lens unit may be located near the detector. 可选地,当光束“腰”足够窄时,液体透镜单元可以位于中间图像附近。 Alternatively, when the light beam is sufficiently narrow "waist", the liquid lens unit may be located near the middle of the image. 液体透镜单元可以位于中间图像之前、中间图像之后,或者液体透镜单元可以位于中间图像之前和之后。 Before the liquid lens unit may be positioned before the intermediate image, after the intermediate image, or the liquid lens unit may be located intermediate image and after. 在光圈装置或光圈附近能够产生腰效应。 In the vicinity of the iris or aperture means capable of producing waist effect. 如表2所示,光圈处的直径约为6. 7mm。 As shown in Table 2, the diameter of the aperture at about 6. 7mm. 由于光圈装置或光圈处的较小直径,可以适当的将液体透镜单元定位在光圈装置或光圈的附近。 Due to the smaller diameter at the aperture or aperture means may be a suitable liquid lens unit is positioned in the vicinity of the aperture or the aperture means.

[0094] 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。 [0094] 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 large range of focal length. 变焦透镜系统60的设计产生具有高性能以及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。 Design of the zoom lens system 60 to produce high performance and mechanical complexity lower than most traditional high performance zoom lens system of the lens system, most of the traditional high-performance zoom lens system requires at least two axially movable zoom lens group and the corresponding mechanical devices. 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 zoom lens system 60 is designed to provide a wide range of focal lengths without additional focusing movable lens group and the corresponding mechanisms. 所公开的变焦透镜系统60是示例性的,其它设计落入本发明的范围内。 The disclosed zoom lens system 60 is exemplary, and other design 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变焦透镜系统60的其它特征和优点。 Through the above description and the accompanying drawings, those skilled in the art will appreciate further features and advantages of the zoom lens system 60.

[0095] 变焦透镜系统中的液体光学器件以及辐射轴的变向 [0095] The liquid zoom lens system optics and the radiation axis of redirecting

[0096] 采用液体透镜单元来替换一个或多个移动透镜组产生用于光路的额外配置选择。 [0096] to replace one or more of the movable lens group to produce additional configuration options for use of an optical path of the liquid lens unit. 用液体透镜单元来替换移动透镜组产生更紧凑的系统。 Liquid lens unit to replace the movable lens group produce a more compact system. 然而,线性光学设计会产生比所期望的更长的透镜。 However, linear optical design produces a longer than desired lens. 液体透镜单元代替移动组的使用便于诸如折曲的光学元件的使用,以便对辐射轴进行变向,减少透镜的物理长度。 Instead of using a liquid lens unit easy to use mobile groups such as bending optical element in order to change to the radiation axis, reducing the physical length of the lens. 尽管通过透镜的光路的总长度可以保持不变,但是液体透镜单元提供用于在一个或多个方向上减小长度的折曲的基本空间。 Although it can remain unchanged by the total length of the light path of the lens, but the liquid lens unit is provided for reducing the length of the bent in one or more directions substantially space. 这允许在更小的照相机包装中使用更长的总体透镜长度。 This allows the use of a longer overall lens length of the camera in a smaller package. 例如,许多全自动照相机和移动电话照相机不具有用于较长透镜的大量空间。 For example, many automatic cameras and mobile phone cameras do not have a lot of space for a longer lens. 采用液体单元结合折曲允许在这些较小的照相机包装中的更好的透镜系统。 Using liquid unit allows for better binding folded lens system camera in these smaller packaging. 更大的照相机还能够得益于减小照相机包装长度,这对于不使用折曲的透镜系统将会是所需要的。 The camera can also benefit from the greater packing length of the camera is reduced, which is not used for the folded lens system will be required.

[0097] 图6示出了应用液体和单个折曲41的变焦透镜系统的光学示意图。 [0097] FIG. 6 shows an optical schematic application of liquid and a single folded zoom lens system 41. 液体代替可移动透镜组的使用减少了空间需求并提供了对用于折曲反射镜或棱镜的空间的基本布置的额外选择。 Liquid instead of using the movable lens group reduces space requirements and provides additional space for the choice of folding mirror or prism of the basic arrangement. 图6示出了折曲将不会妨碍移动透镜组的布置。 Figure 6 shows a bent arrangement will not hinder moving lens group.

[0098] 可以减小变焦透镜系统60的全长,但具有性能上的退化,除非引入诸如更多的透镜元件和/或非球面的增加的光学复杂性。 [0098] to reduce the entire length of the zoom lens system 60, but with a degradation in performance, and the introduction or increase unless such additional lens elements / spherical optical complexity. 然而,可以通过变焦透镜系统的折曲来实现减小的长度。 However, by bending the zoom lens system to achieve a reduced length. 图6示出了在后透镜组G3中的较大空间中的单个45度折曲41,以使辐射路径变向了90度。 Figure 6 shows a larger space in the rear lens group G3 in a single 45-degree bend 41, so that the radiation path changed to 90 degrees.

[0099] 图7是应用液体和双折曲的变焦透镜系统的光学示意图。 [0099] FIG. 7 is a schematic diagram of the optical applications of liquid and double folded zoom lens system. 图7示出了在后透镜组G3中的较大空间中的双重45度折曲42和43,以使辐射路径变向了两次共计180度,以使得辐射具有相反的方向。 Figure 7 shows a larger space in the rear lens group G3 in the dual 45-degree bends 42 and 43, so that the radiation path changed direction twice totaling 180 degrees, so that the radiation having the opposite direction. 对于变焦透镜系统60在照相机盒中的包装,该布置可以是优选的。 For the zoom lens system 60 in the camera box packaging, this arrangement may be preferred. 此外,变焦透镜系统可以具有通过所有的变焦和聚焦位置的常数孔径F/2. 8,但保持基本相同的变焦透镜系统直径,可能出现某些渐晕。 In addition, the zoom lens system may have zoom and focus through all positions constant aperture F / 2. 8, but remains substantially the same diameter of the zoom lens system, some vignetting may occur. 在这种情况下,会出现图像质量的一定退化, 但可以通过变焦透镜系统的参数的再优化来进行部分地的修正。 In this case, there will be some degradation in image quality, but can be re-optimization parameters of the zoom lens system to be part of the amendment. 可以将变焦透镜系统布置为使得不出现渐晕。 The zoom lens system can be arranged so as not to appear vignetting.

[0100] 图8A和8B是变焦透镜系统的光学示意图,其中图示了辐射轴的变向,通过变焦透镜组的不同位置和液体之间的表面形状。 [0100] Figures 8A and 8B are a schematic view of the zoom lens optical system, which is illustrated redirecting radiation axis by the surface shape of the zoom lens group and liquids between different locations. 该实施方式图示了可选透镜设计。 This embodiment illustrates an alternative lens design. 图8A图示了将图像放大至超过透镜系统的光学路线的一点的变焦位置。 Figure 8A illustrates the image to enlarge beyond the optical path of the lens system that zoom position. 该实施方式图示了一个设计选择,能够对该设计作出小的改变来修正这种效应。 This embodiment illustrates a design choice, it is possible to make small changes to the design to correct this effect.

[0101] 折曲44和45基本上是平行的,以使得离开透镜元件50的光线基本上与通过透镜46进入透镜系统的光线平行。 [0101] 44 and 45 are folded substantially parallel, so that the light leaving the lens element 50 is substantially parallel to the lens 46 by light rays entering the lens system. 透镜组47保持固定,而透镜组48移动以主要提供变焦。 Lens group 47 remain fixed lens group 48 is moved to the main provider of zoom. 透镜组49包括执行变焦和聚焦功能的液体透镜单元。 Lens group 49 includes a function to perform zoom and focus liquid lens unit.

[0102] 图9A、9B和9C是变焦透镜系统的光学示意图,其中已经战略上地放置液体透镜单元和折曲以便有利地缩短透镜系统的长度。 [0102] FIG. 9A, 9B and 9C are schematic optical zoom lens system, which has been placed liquid lens unit and bent in order to advantageously shorten the length of the lens system strategy on the ground. 光通过透镜组200进入透镜系统。 Light passes through the lens group 200 into the lens system. 透镜组201 移动以主要提供变焦。 Lens group 201 moves to the main provider of zoom. 光线穿过光圈或光圈装置202并进入包括液体透镜单元的透镜组203。 Light through the aperture or iris device 202 includes a liquid lens unit and into a lens group 203. 折曲204将光引导通过透镜组205,透镜组205包括具有可变表面206的液体透镜单元。 204 bent to direct light through the lens group 205, 205 lens group includes a liquid lens unit having a variable surface 206. 然后光线穿过透镜组207。 Then the light passes through the lens group 207. 折曲208使光线变向通过透镜组209并朝向像平面210。 208 bent to make the light change through the lens facing the image plane 209 and 210. 图9A图示了约6mm的焦距,F/2. 8,以及无穷远焦点。 9A illustrates a focal length of about 6mm, F / 2. 8, and infinity focus. 图9B图示了约15mm的焦距,F/2. 8,以及无穷远焦点。 9B illustrates a focal length of about 15mm, F / 2. 8, and infinity focus. 图9C图示了约51mm的焦距,F/2. 8,以及无穷远焦点。 Figure 9C illustrates a focal length of about 51mm, F / 2. 8, and infinity focus.

[0103] 透镜组203中的第一液体透镜单元具有约为IOmm的最大通光孔径直径。 [0103] The first lens group 203 liquid lens unit has about IOmm maximum aperture diameter. 透镜组205中的第二液体透镜单元具有约为16mm的最大通光孔径直径。 A second lens group 205 liquid lens unit has a maximum of about 16mm aperture diameter. 通过包括照相机闪光以减慢采用在长焦距处或其附近的孔径,可以回复到一个液体透镜单元。 By including the camera flashes to slow down the use of long focal length at or near the aperture, it can revert to a liquid lens unit.

[0104] 应该注意,对于本领域技术人员而言,各种改变和修改时显而易见的。 [0104] It should be noted, the skilled artisan, when various changes and modifications obvious. 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 to be understood as included within the scope of the appended claims of the invention.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
CN104749755A *31 Mar 20151 Jul 2015中国科学院长春光学精密机械与物理研究所Compact tri-component high-zoom ratio continuous zoom lens
CN105025219A *30 Apr 20144 Nov 2015齐发光电股份有限公司Image acquisition method
US86384962 Apr 201028 Jan 2014Blackeye Optics, LlcVariable power optical system
US86872813 Dec 20081 Apr 2014Blackeye Optics, LlcLiquid optics image stabilization
US87737663 Dec 20088 Jul 2014Blackeye Optics, LlcLiquid optics with folds lens and imaging apparatus
US88791616 Apr 20124 Nov 2014Blackeye Optics, LlcVariable power optical system
US920117531 Oct 20141 Dec 2015Blackeye Optics, Llc.Variable power optical system
US928551127 Jan 201415 Mar 2016Blackeye Optics, LlcVariable power optical system
US958173631 Mar 201428 Feb 2017Blackeye Optics, Llc.Liquid optics image stabilization
US968410112 Feb 201520 Jun 2017Silicon Touch Technology Inc.Optical zoom structure
Classifications
International ClassificationG02B7/00, G02B3/14, G02B15/173
Cooperative ClassificationG02B26/004, G02B7/008, G02B3/14, G02B15/173, G02B13/0075, G02B13/009, G02B15/16
European ClassificationG02B26/00L, G02B3/14, G02B15/173
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