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Publication numberCN101558332 B
Publication typeGrant
Application numberCN 200780045743
PCT numberPCT/US2007/023345
Publication date9 Mar 2011
Filing date6 Nov 2007
Priority date7 Nov 2006
Also published asCN101558332A, US7324287, WO2008057525A1
Publication number200780045743.9, CN 101558332 B, CN 101558332B, CN 200780045743, CN-B-101558332, CN101558332 B, CN101558332B, CN200780045743, CN200780045743.9, PCT/2007/23345, PCT/US/2007/023345, PCT/US/2007/23345, PCT/US/7/023345, PCT/US/7/23345, PCT/US2007/023345, PCT/US2007/23345, PCT/US2007023345, PCT/US200723345, PCT/US7/023345, PCT/US7/23345, PCT/US7023345, PCT/US723345
InventorsJ高里尔
Applicant康宁股份有限公司
Export CitationBiBTeX, EndNote, RefMan
External Links: SIPO, Espacenet
Multi-fluid lenses and optical devices incorporating the same
CN 101558332 B
Abstract
The present invention provides a variety of fluid lens configurations that enable beam steering and focus adjustment. For example, according to one aspect of the present invention, a fluid lens is configured such that an optical signal may propagate from an input side of the lens to an output side of the lens along an axis of optical propagation extending through first and second lens surfaces defined by the immiscible fluids of the lens. Respective tunable lens surfaces are formed along the interfaces between the immiscible fluids and an external signal is capable of changing the shape of those surfaces. Because the two lens components forming the lens surfaces are laterally offset, the focal length and beam steering of the lens can be tuned by varying the shape of the surfaces. Additional embodiments are disclosed.
Claims(9)  translated from Chinese
  1. 一种包括第一和第二流体透镜组件的流体透镜,其特征在于:所述第一流体透镜组件包括沿包含在所述透镜的流体容器内的第一和第二流体的界面形成的第一透镜表面;所述第一和第二流体相对于彼此不混溶;所述第二流体透镜组件包括沿所述流体容器内包含的第二和第三流体的界面形成的第二透镜表面;所述第二和第三流体相对于彼此不混溶;所述第一流体通过所述第二流体机械地耦合至所述第三流体;所述第二流体的折射率与所述第一和第三流体的折射率显著不同;所述流体透镜被配置成使光信号可沿穿过所述第一和第二透镜组件的所述第一和第二透镜表面延伸的光传播轴从所述透镜的输入侧向所述透镜的输出侧传播;所述第一和第二透镜表面沿垂直于所述光传播轴z的方向x相对于彼此偏移,以及所述流体透镜被配置成允许所述第一和所述第二透镜表面中的至少一个的改变。 A fluid lens comprising a first lens assembly and the second fluid, wherein: said first lens assembly includes a fluid contained within the fluid container along the first and second lens is formed at the interface of the first fluid lens surface; said first and second fluid immiscible with respect to each other; said second fluid lens assembly includes a second surface and a third lens formed at the interface of the second fluid along the inner fluid container included; the said second and third fluid immiscible with respect to each other; said first fluid through said second fluid is mechanically coupled to the third fluid; the refractive index of the second fluid with said first and second significantly different refractive indices of the three fluid; the fluid lens is arranged movable along the optical signals passing through said first and said second lens assembly of the first and second optical propagation axis extending from the lens surface of the lens propagating the input side to the output side of the lens; the first and second lens surfaces x offset relative to each other perpendicular to said direction of light propagation axis z, and the fluid lens is configured to allow the changing at least one of the first and the second lens surfaces.
  2. 2.如权利要求1所述的流体透镜,其特征在于:所述流体透镜还包括第三流体透镜组件,所述第三流体透镜组件包括沿包含在所述透镜的附加流体容器内的第一和第二流体的界面的第三透镜表面;所述第三流体透镜组件的所述第一和第二流体相对于彼此不混溶; 所述第一和第二透镜表面沿垂直于所述光传播轴z的方向x相对于彼此偏移;以及所述第一和第二透镜表面中的一个或两个沿垂直于所述方向x和所述光传播轴z的方向y相对于所述第三透镜表面偏移。 The first lens further comprises a third fluid fluid lens assembly, said lens assembly includes a third fluid along the fluid contained within the container of the additional lens are: 2. The fluid lens according to claim 1, characterized in that and the third lens surface of the second fluid interface; said third lens assembly of the first fluid and the second fluid immiscible with respect to each other; said first and second lens surface perpendicular to said optical propagation axis z direction x offset relative to each other; and the first and second lens surface one or two direction perpendicular to the light propagation direction of the x and the y axis z with respect to said first direction three lens surface offset.
  3. 3.包括如权利要求1所述的流体透镜的光学系统,其特征在于,所述流体透镜被配置成通过在所述传播光中产生全局光束导向效应、改变所述流体透镜的焦距、或通过这两种方式引导在所述光学系统中传播的光。 3. The optical system including the fluid lens as claimed in claim 1, characterized in that the fluid lens is arranged to pass light generated in the propagation effects of the global beam guide, change the focal length of the fluid lens, or by These two ways of guiding light propagating in the optical system.
  4. 4.如权利要求3所述的光学系统,其特征在于:所述光学系统包括半导体激光器,所述半导体激光器包括激光芯片、光波长转换装置、 以及所述流体透镜;以及所述流体透镜被配置成通过在所述传播光中产生全局光束导向效应、改变所述流体透镜的焦距、或通过这两种方法引导从所述激光芯片的输出传播至所述光波长转换装置的输入的光。 4. The optical system according to claim 3, wherein: said optical system comprises a semiconductor laser, the semiconductor laser comprises a laser chip, the light wavelength conversion device, and the fluid lens; and the fluid lens is configured By generating a global light beam in the propagation light guide effect, changing the focal length of the fluid lens, or to guide the propagation of the output from the laser chip to the input of the optical wavelength conversion device passes through both methods.
  5. 5.如权利要求1所述的流体透镜,其特征在于,所述透镜包括控制电极,所述控制电极被配置成产生能够改变所述透镜表面中的至少一个的形状、取向、或形状和取向的至少一个电场。 5. The fluid lens according to claim 1, characterized in that said lens comprises a control electrode, the control electrode is configured to produce the lens surface can be changed in at least one of the shape, orientation, or shape and orientation at least one electric field.
  6. 6.如权利要求1所述的流体透镜,其特征在于,所述透镜包括控制电极,所述控制电极被配置成产生能够独立地改变所述第一和第二透镜表面的至少两个不同的电场。 6. The fluid lens according to claim 1, characterized in that said lens comprises a control electrode, the at least two different control electrodes configured to generate can be changed independently of the first and second surfaces of the lens electric field.
  7. 7.如权利要求1所述的流体透镜,其特征在于,所述透镜包括控制电极,所述控制电极被配置成产生能够通过独立地改变所述第一和第二透镜表面产生全局光束导向效应的至少两个不同的电场。 7. The fluid lens according to claim 1, characterized in that said lens comprises a control electrode, the electrode can be configured to generate a light beam generated by the global independently varying the first and second lens effect of the control surface of the guide at least two different electric fields.
  8. 8.如权利要求1所述的流体透镜,其特征在于,所述透镜包括控制电极,所述控制电极被配置成产生能够通过独立地改变所述第一和第二透镜表面改变所述透镜的焦距的至少两个不同的电场。 8. The fluid lens according to claim 1, characterized in that said lens comprises a control electrode, the control electrode can be configured to generate by independently changing the first and second lens of the lens surface changes at least two different focal lengths of the electric field.
  9. 9.如权利要求1所述的流体透镜,其特征在于:所述透镜包括被配置成独立地产生至少两个不同的电场的第一组控制电极,各个所述电场能够改变所述第一透镜表面的至少一个方面;以及所述透镜包括被配置成独立地产生至少两个附加的不同电场的第二组控制电极,各个所述电场能够改变所述第二透镜表面的至少一个方面。 9. The fluid lens according to claim 1, characterized in that: the lens includes is configured to independently generate a first set of at least two different electric fields of the control electrodes, each of said electric field capable of changing said first lens and the lens is configured to independently comprises generating at least two additional different electric field of a second set of control electrodes, each of said electric field of said second lens surface can be changed at least one aspect; at least one aspect of the surface.
Description  translated from Chinese

多流体透镜和包括多流体透镜的光学装置 More fluid lens and includes multiple fluid lens optical device

[0001] 发明背景 [0001] BACKGROUND OF THE INVENTION

[0002] 本发明涉及可调流体透镜和包括可调流体透镜的光学装置。 [0002] The present invention relates to an adjustable fluid lens and an optical apparatus including adjustable fluid lens. 发明内容 SUMMARY

[0003] 根据本发明的一个实施例,一种流体透镜被配置以使光信号可沿着穿过由透镜的第一、第二、以及第三基本不混溶流体限定的第一和第二透镜表面延伸的光传播轴从透镜的输入侧传播至透镜的输出侧。 [0003] According to one embodiment, a fluid lens of the present invention is configured so that the light signal can pass through the lens along a first, a second, and a third substantially immiscible fluids defining a first and a second optical propagation axis of the lens surface extending in the propagation from the input side of the lens to the lens of the output side. 该透镜包括流体容器,该流体容器被配置以使第一不混溶流体通过第二不混溶流体机械地耦合至第三不混溶流体。 The lens includes a fluid container, the fluid container is configured such that the first immiscible fluid through the second immiscible fluid is mechanically coupled to the third immiscible fluid. 相应的透镜表面沿第一、第二、以及第三不混溶流体之间的界面形成。 The corresponding lens surface along the first, second interface, and a third immiscible fluid formed between.

[0004] 根据本发明的另一实施例,第一和第二透镜表面沿垂直于透镜的光传播轴ζ的方向X相对于彼此偏移。 [0004] According to another embodiment of the present invention, the first and second lens surface direction perpendicular to the light propagation direction of the lens axis ζ X offset relative to each other. 第三透镜表面可沿两种叠加的不混溶流体的界面设置,并且第一和第二透镜表面中的一个或两个可沿垂直于方向X和光传播轴Z的方向相对于第三透镜表面偏移。 The third lens surface along two superimposed immiscible fluid interface settings, and the first and second lens surfaces, one or both may be a direction perpendicular to the X-direction and the light propagation axis Z with respect to the surface of the third lens offset.

[0005] 根据本发明的又一实施例,提供了一种光学系统,它包括根据本发明的流体透镜。 [0005] According to a further embodiment of the present invention, there is provided an optical system comprising a fluid lens of the present invention. 在该系统中流体透镜被配置成通过在传播光中产生全局光束导向效应、改变流体透镜的焦距或者通过这两种方式引导光在系统中传播。 In this system the fluid lens is configured by generating a global light beam in the propagation light guide effect, changing the focal length of fluid lens or light propagates in the system through both guide.

[0006] 因此,本发明的目的是提供针对可调流体透镜的改进设计、改进的半导体激光器、 以及结合这些透镜的其它类型的光学-机械装置。 [0006] Accordingly, an object of the invention to provide for an adjustable fluid lens of improved design, improved semiconductor laser, and a combination of these other types of optical lenses - mechanical means. 例如,在诸如分布反馈(DFB)激光器或者分布布拉格反射镜(DBR)激光器之类的半导体激光器与诸如二次谐波产生(SHG)晶体之类的光波长转换装置组合以形成短波长源的情况下,利用光束导向会是有利的。 For example, in the case such as a distributed feedback (DFB) semiconductor laser or distributed Bragg reflector laser (DBR) laser or the like such as a second harmonic generating optical wavelength conversion device in combination (SHG) crystal or the like to form a short wavelength source By using the guide beam may be advantageous. 更具体地, 通过将例如lOeOnm的DBR或DFB激光器调节至将波长转换成530nm即可见光谱的绿光部分的SHG晶体的光谱中心,可将SHG晶体配置成产生基波激光信号的较高次谐波。 More specifically, by e.g. lOeOnm the DBR or DFB laser is adjusted to the wavelength of 530nm can be converted into the center of the visible spectrum of the green part of the spectrum SHG crystal, SHG crystal can be configured to generate higher order harmonics of the fundamental laser signal waves. 根据本发明的可调透镜可被定位成将光从激光芯片弓I导至光波长转换装置。 May be positioned to convert light from the laser chip I bow guide apparatus according to an optical wavelength tunable lens of the present invention. 本发明的其它目的将根据在此具体化的本发明的描述变得显而易见。 Other objects of the present invention will become apparent from the description herein of the present invention is embodied.

[0007] 附图简述 [0007] Brief Description

[0008] 本发明的特定实施例的以下详细描述可在结合以下附图阅读时被最好地理解,附图中相同的结构使用相同的附图标号指示,且其中: [0008] The following detailed description of specific embodiments of the present invention can be read at the following figures are best understood from the accompanying drawings in the same structure using the same reference numerals indication, and wherein:

[0009] 图1是根据本发明的一个实施例的串联式流体透镜的示意图; [0009] Figure 1 is a schematic view of a tandem type according to one embodiment of a fluid lens of the present invention;

[0010] 图2是根据本发明的处于偏置状态的图1的串联式流体透镜的示意图; [0010] FIG. 2 is a schematic diagram of the lens are offset in accordance with the present invention. Fig. 1 is a tandem type fluid;

[0011] 图3是根据本发明的处于另一偏置状态的图1的串联式流体透镜的示意图; [0011] FIG. 3 is a schematic diagram of another lens in the bias state according to the present invention of FIG. 1 of tandem type fluid;

[0012] 图4是根据本发明的另一个实施例的串联式流体透镜的示意图; [0012] FIG. 4 is a schematic view of a tandem type according to the present invention, the fluid to another embodiment of the lens;

[0013] 图5是根据本发明的另一个实施例的串联式流体透镜的示意图;以及 [0013] FIG. 5 is a schematic view of a tandem type fluid lens according to another embodiment of the present invention; and

[0014] 图6A和6B示出包括三个透镜组件的本发明的实施例。 [0014] Figures 6A and 6B illustrate an embodiment includes three lens assembly of the present invention.

[0015] 详细描述 [0015] Detailed Description

[0016] 首先参考图1,示出了根据本发明的一个实施例的流体透镜10。 [0016] Referring initially to Figure 1, there is shown a fluid lens 10 according to one embodiment of the present invention. 一般而言,图1中所示的流体透镜10包括第一和第二流体透镜组件12、14。 In general, as shown in FIG. 1 the fluid lens 10 includes first and second fluid lens assembly 12,14. 第一流体透镜组件12包括沿包含在透镜10的流体容器20内的第一和第二不混溶流体21、22的界面的第一透镜表面13。 Lens assembly 12 comprises a first fluid contained in the first lens surface along the fluid container 13 and the lens 10 of the first 21 and 22 second immiscible fluid 20 within the interface. 类似地,第二流体透镜组件14包括沿包含在流体容器20内的第二和第三不混溶流体22、 23的界面的第二透镜表面15。 Similarly, the second fluid along the lens assembly 14 includes a fluid reservoir 20 contained within the second and third immiscible fluid 22, the interface 23 of the second lens surface 15. 为了限定和描述本发明,应当注意的是,在本文中引用的透镜组件“包括”透镜表面不应当解释为对表面的物理位置的限制。 In order to define and describe the present invention, it should be noted that the lens assembly referenced herein "comprising" lens surface should not be construed as limiting the physical position of the surface of the. 相反,无论该表面的位置在何处,它都应当被理解为透镜组件的一部分。 Instead, regardless of the position of the surface where it is to be understood as part of the lens assembly. 例如,在图1和2中所示的本发明的实施例中,应当认为无论第一透镜表面13沿第三不混溶流体23的方向延伸多远,该表面都将是第一透镜组件的一部分。 For example, in the embodiment of the present invention in Figures 1 and 2 shown, it should be considered whether the first lens surface 13 along the direction of the third immiscible fluid 23 extends far, this surface will be the first lens assembly part of it.

[0017] 第二不混溶流体22的折射率与第一和第三不混溶流体21、23各自的折射率不同, 以确保第一和第二透镜表面13、15向透镜10中引入合乎需要的光学效应。 [0017] The second immiscible fluid refractive index of the first and third immiscible fluid 21, 23 to their different refractive indices, in order to ensure that the first and second lens surfaces 13, 15 and 22 is introduced to the lens 10 in line with optical effect desired. 具体地,在光信号沿从穿过第一和第二透镜表面13、15延伸的光传播轴从透镜10的输入侧传播至透镜10 的输出侧的情况下,相应的折射率应当足够不同以在各个透镜表面处在信号中引入光学上的显著变化。 Specifically, in the optical signal along the optical propagation from the axis through the first and second lens surfaces 13, 15 extending in the propagation from the input side lens 10 to the case where the output side of lens 10, should be sufficiently different from the refractive index corresponding to introduce a significant change in the optical lens surface on at all in the signal.

[0018] 例如而不是为了限制,在包括激光芯片、波长转换装置、和根据本发明的流体透镜10的半导体激光器的背景下,流体透镜10可沿激光芯片的光输出与PPLN波长转换晶体的输入之间的光路径定位。 [0018] For example and not limitation, including laser chip, the wavelength conversion device, and a lower fluid lens according to the present invention the background of the semiconductor laser 10, the lens 10 may be a fluid optical output wavelength conversion laser chip along with the PPLN crystal input the optical path between the positioning. 优选设置一对准直透镜,且流体透镜10在准直透镜之间的光路径的已准直部分中定位。 Is preferably provided a pair of alignment lens, and the lens 10 is positioned in the fluid collimated portion of the light path between the collimator lens in. 流体透镜10可按照本文中所描述的方式调节,以通过将传播光相对于PPLN晶体的输入表面重新对准、通过调节PPLN晶体的输入表面处的传播光的焦点或同时采取这两种方法来改善激光输出与PPLN晶体之间的耦合效率。 Fluid lens 10 may be in the manner described herein adjustments in order to propagate the light by re-align with respect to the input surface of the PPLN crystal, the propagation of light through the focal point of the input surface of the crystal or PPLN adjusted while taking these two methods improve the coupling efficiency between the laser output and the PPLN crystal. 虽然引入光信号中的变化可以是静态的,但本发明的多个实施例尤其适合于通过改变光信号被重定向的角度在光学系统中产生光束导向效果。 Although the introduction of changes in the optical signal may be static, but a plurality of embodiments of the present invention is particularly suitable for administration by changing the angle of the optical signal is redirected to produce a guide beam effect in the optical system. 此外,本发明的多个实施例尤其适合于通过改变透镜10的焦距被改变的程度提供焦距的变化。 Further, a plurality of embodiments of the present invention is particularly adapted to provide the degree of change in the focal length by changing the focal length of lens 10 is changed.

[0019] 具体地,参考图1作为示例,第一和第三不混溶流体21、23可被提供为电响应流体,且透镜10可包括控制电极30、32、34,控制电极30、32、34被配置成产生能够改变透镜表面13、15中的一个或两个的形状和/或取向的相应的电场。 [0019] In particular, with reference to FIG. 1 as an example, the first and third immiscible fluid 21, 23 may be provided as an electro-responsive fluid, and the lens 10 may include a control electrode 30, 32, 30, 32 control electrode , 34 configured to generate an electric field can alter the surface of the lens 13, 15 in one or both of the shape and / or orientation. 如图1所示,控制电极30、32、 34可被配置成至少部分地界定流体容器20,其中电极30和34包括部分锥形的壁部分。 1, the control electrode 30, 32, 34 may be configured to at least partially define the fluid container 20, in which the electrodes 30 and 34 includes a portion tapered wall portion. 电响应透镜流体与容器的锥形壁接合的角度和流体与容器壁接合的点因变于施加到控制电极的控制电压。 Angle and the engagement point of the fluid with the container wall and the electrical response of the lens fluid container tapered wall engaging vary as applied to the control electrode of the control voltage. 以此方式,相应的透镜表面的形状和取向可因变于施加到控制电极的电压被控制。 In this manner, the shape and orientation of the respective lens surfaces may vary as the voltage applied to the control electrode is controlled.

[0020] 例如而非为了限制,在其中第一和第二透镜组件12、14的电极和几何形状是旋转对称的特定情况下,电极电压的变化将改变第一和第二透镜表面13、15的曲率半径。 [0020] For example, and not limitation, the geometry of the electrodes and wherein the first and second lens assemblies 12, 14 the particular case is rotationally symmetric, the electrode voltage change will change the first and second lens surfaces 13, 15 The radius of curvature. 曲率的这个变化改变第一和第二透镜组件12和14的焦距。 This change in curvature of the lens changes the focal length of the first and second assemblies 12 and 14. 如图1所示,如果透镜横向偏移距离a,透镜组件12、14的曲率半径的变化可被转换成传播的光信号的传播方向选择性调节和透镜10的焦距调节。 As shown in Figure 1, if the lens is laterally offset distance a, changes in the radius of curvature of the lens assembly 12, 14 may be converted into the propagation direction of propagation of the optical signal and selectively adjusting the focal length of lens 10 is adjusted. 通过向透镜组件12和14施加不同的信号可独立地调节光束焦点和光束导向。 May be independently adjusted beam focus and guide the light beam by applying different signals to the lens assembly 12 and 14. 例如,以下方程示出一光学构造中的PPLN波长转换晶体的输入处的光束导向和光斑的焦点调节,该光学构造包括沿一光学路径以此排列的激光二极管、第一准直透镜Li、 包括第一和第二透镜组件12、14的流体透镜10、第二准直透镜L2、以及PPLN晶体: For example, the following equation shows the configuration of an optical wavelength conversion crystal PPLN guide beam spot at the input and the focus adjustment, the optical structure comprising in order along an optical path of a laser diode arrangement, a first collimator lens Li, comprising The first fluid and the second lens 10 of lens assembly 12, 14, second collimating lens L2, and the PPLN crystal:

[0021] Dy = fL2(a) (l/f「l/f2) [0021] Dy = fL2 (a) (l / f "l / f2)

[0022] Dz = Ϊ^ϋ/Ϊ,+Ι/Ϊ^ [0022] Dz = Ϊ ^ ϋ / Ϊ, + Ι / Ϊ ^

[0023] 其中Dy是PPLN晶体的输入处的光斑的横向平移,Dz是PPLN晶体的输入处的光斑 [0023] where Dy is the lateral translation at the input PPLN crystal spot, Dz is the spot at the input of PPLN crystals

5的焦点平移,f:和f2是第一和第二流体透镜组件12、14各自的焦距,而&是第二准直透镜L2的焦距。 5 focus translation, f: and f2 are the first and second fluid focal length of each lens assembly 12, 14, and & is the second focal length of the collimator lens L2. 因此,通过在不改变(l/fi+1/%)的和值的情况下改变&和4可调节光斑的横向位置。 Thus, by changing without changing (l / fi + 1 /%) and the values & adjustable spot and four lateral position. 反之,通过调节和f2同时保持差值(l/frl/%)恒定可改变焦点。 On the contrary, by regulation and f2 while maintaining the difference (l / frl /%) constant focus can be changed.

[0024] 图2示出透镜表面13、15的形状的构想改变的示例。 [0024] Figure 2 shows a shape of the lens surface 13, 15 of an example of the concept of change. 在示图中,控制电极30、32、 34是环形对称的,而且可被施加会产生具有改变的曲率的透镜表面13' ,15'的电位。 In the illustration, the control electrode 30, 32, 34 are annular symmetrical, but may be applied 13 ', 15' will produce a potential curvature of the lens surface having altered. 图3 例示出第一和第二透镜组件12、14的透镜表面的取向的构想改变。 Figure 3 illustrates the concept of change of the lens surfaces of the first and second lens assemblies 12,14 orientation. 在示图中,控制电极30、 32、34不是环形对称的,而且被施加会产生具有改变的取向的透镜表面13' ,15'的电位。 In the illustration, the control electrode 30, 32 and 34 are not symmetrical ring, and is applied to produce a lens having altered alignment surface 13 ', 15' potentials.

[0025] 构想可采用本发明的概念给予透镜表面取向和形状的实际无限制的集合。 [0025] The idea of the inventive concept may be administered orientation and shape of the lens surface of the actual set of unlimited. 例如, 构想各个控制电极30、32、34可被划分成包括两个或多个单独可控的分支电极或电极部分。 For example, each of the control electrodes 30, 32 may be divided into concept comprises two or more branch electrode or electrode portion individually controllable. 更具体地,虽然控制电极30和34可包括相应的连续锥形电极且控制电极32可包括连续环形电极,但构想各个锥形或环形电极可沿电极的弧形分成若干分支电极以提供透镜表面13、15的增强控制。 More specifically, although the control electrodes 30 and 34 may comprise respective conical continuous electrode and the control electrode 32 may comprise a continuous annular electrode, but the concept of each tapered or ring electrode divided into a plurality of branch electrodes may be curved along the electrode surface of the lens to provide Enhanced control 13,15. 在美国专利No. 6,538,823中说明了在可调流体透镜中使用的电极组件的一些示例。 Illustrates some examples of the electrode assembly for use in an adjustable fluid lens in the U.S. Patent No. 6,538,823. 该专利的仅对便于理解可调流体透镜中的电极可用来改变流体透镜表面的曲率的方式有必要的那些部分通过引用结合于此。 This patent is only to facilitate understanding of the adjustable fluid lens electrode can be used to change the curvature of the lens surface of the fluid way those parts necessary incorporated herein by reference.

[0026] 为了描述和定义本发明,注意“电学响应”的流体可以是导电流体、有限导电率的有极性流体、或者可被安排成以在此描述的方式对其上的电场或磁场的施加作出物理响应的任何流体。 [0026] In order to describe and define the present invention, note that "electrical response" of the fluid may be a conductive fluid, there is a limited conductivity polar fluid, or may be arranged in the manner described herein on its electric or magnetic field any fluid is applied to the physical response. 还构想仅提供第二不混溶流体22作为电响应流体就足够了,因为第二不混溶流体22的形状和取向将由于第二不混溶流体22与其它两种不混溶流体之间的机械耦合而影响第一和第三不混溶流体21、23的形状和取向。 Also contemplates providing only the second immiscible fluid 22 as the electrical response of fluid is sufficient, because the shape and orientation of the second immiscible fluid 22 will be due to a second immiscible fluid 22 and the other between two immiscible fluids The mechanical coupling of the first and third impact immiscible fluids 21, 23 shape and orientation. 此外,还构想设置在透镜中的全部不混溶流体21、22、23可被选择成电响应的。 In addition, all disposed in the lens concept immiscible fluids 21, 22 may be selected to electrical response.

[0027] 控制其中由控制电极产生的电场可用来改变透透镜表面13、15的形状和取向的方式的具体方式在本发明的范围以外,并且该方式可从该问题的多种容易得到的示教中了解。 Specific manner [0027] wherein the electric field control by the control electrodes can be used to change the lens shape and lens surface 13, 15 oriented in a manner outside the scope of the present invention, and the way the problem can be from a variety of readily obtained are shown Learn to teach. 例如且不作为限制,美国专利No. 6,538,823,6, 778,328和6,936,809提供了对该问题的具体指导。 For example and without limitation, US Patent No. 6,538,823,6, 778,328 and 6,936,809 provides specific guidance on this issue. 这些专利的仅对促进理解电场可用来改变凸透镜表面的曲率的方式有必要的那些部分通过引用结合于此。 These patents only to facilitate understanding of the electric field can be used to change the curvature of the convex surface of the way those parts necessary incorporated herein by reference.

[0028] 在本发明的实施中,构想将通常优选通过确保提供合适的控制电路和相应的独立可控电极30、32、34以允许产生能够独立地改变第一和第二透镜表面13、15的各自形状的至少两个不同的电场以最大化操作灵活性。 [0028] In the embodiment of the present invention, it is contemplated by the generally preferred to ensure appropriate control circuitry and the corresponding individually controllable electrodes 30, 32 can be changed to allow for independently generating the first and second lens surfaces 13, 15 at least two different electric fields of respective shapes to maximize operational flexibility. 为此,在图1和其它地方处将透镜10示为包括在控制电极30、32、34之间定位的相应的电绝缘体36。 For this reason, in FIG. 1 and elsewhere at the lens 10 is shown as including the corresponding electrical control electrode 30, 32 positioned between the insulator 36. 例如图1所示,电绝缘体36可界定流体容器20。 For example in Figure 1, an electrical insulator 36 may define a fluid reservoir 20.

[0029] 本发明的一个重要方面参考图6A和6B示出,其中第一和第二透镜组件12、14各自的位置参考正交XYZ坐标系示出。 [0029] An important aspect of the present invention with reference to FIGS. 6A and 6B illustrate, wherein the first and second lens assemblies 12, 14 the respective positions of the reference XYZ orthogonal coordinate system is shown. 如图6A所示,可定位第一和第二透镜组件并控制控制电极30、32、34以使各个组件的相应透镜表面13、15相对于彼此沿χ方向偏移,χ方向垂直于代表光传播轴的一般方向的ζ方向。 6A, may be positioned first and second lens assemblies and control of the control electrode 30, 32 so that the corresponding lens surface of the individual components 13, 15 relative to each other along the direction of shift χ, χ direction perpendicular to the light representative ζ direction general direction of the propagation axis. 图6B示意性地示出XY平面中的相应的透镜组件12、14的偏移关系。 Figure 6B schematically shows the XY plane corresponding offset relationship between the lens assembly 12, 14. 此偏移关系允许用户通过相对低复杂度的控制电极配置在χ方向上获得显著的光束导向。 This offset relationship allows the user to achieve significant beam guide in the χ direction by a relatively low complexity of the control electrode arrangement.

[0030] 图6A和6B还示出第三流体透镜组件16,其包括沿透镜10的附加的流体容器内包含的第一和第二不混溶流体21、22的界面的第三透镜表面17。 [0030] Figures 6A and 6B also illustrates a third fluid lens assembly 16, the first and second immiscible fluids 21, 22 of the interface of the third lens along the lens surface comprising additional fluid container 10 contains 17 . 第一透镜组件12的第一透镜表面13相对于第三透镜组件16的第三透镜表面17沿垂直于χ方向的y方向偏移。 A first lens surface of the first lens assembly 12 of the third lens 13 are offset relative to the third lens assembly 16 along the surface 17 perpendicular to the y direction χ direction. 因此,第三透镜表面17的形状和/或取向的改变将允许用户通过相对低复杂度的控制电极配置实现y方向上的显著的光束导向。 Thus, the shape of the surface of the third lens 17 changes and / or orientation will allow the user to control electrode via a relatively low complexity configuration to achieve significant beam oriented in the y direction. 图6A和6B中示出的偏移透镜组件的所得组合将共同允许整个XY平面上的方便的光束导向,同时保持改变透镜10的焦点的上述能力。 The resulting combination of Figures 6A and 6B is shown offset lens assembly together will allow the beam to facilitate the entire guide on the XY plane, while keeping the lens focal point 10 of the change of said capacity.

[0031] 关于本申请的图1-6中所示的流体容器,构想透镜表面界面壁40可被配置成锥形或圆柱形壁的相应的内周边。 [0031] The fluid container shown in Figure 1-6 on the present application, vision lens surface interface wall 40 can be configured to a corresponding conical or cylindrical inner peripheral wall. 然而,还可构想多种常规和有待开发的容器构造将适合用于本发明的透镜组件。 However, also contemplated a variety of conventional container construction and yet to be developed will be suitable for the lens assembly of the present invention. 在所示实施例中,各个流体容器20至少部分地受输入窗口24和输出窗口26限制,它们中的每一个可沿透镜10的光传播轴定位。 In the illustrated embodiment, each fluid reservoir 20 is at least in part by the input window 24 and output window 26 limit, each of them positioned along the optical propagation axis of the lens 10. 容器20还受与透镜表面13、 15、17接合的壁40限制。 Container 20 is also affected by the lens surface 13, 15, 17, 40 joined to the wall limit. 这些壁一般沿光传播轴延伸,且平行于光传播轴或向内或向外成锥形,即相对于光传播轴倾斜。 These walls extending generally along the optical propagation axis and parallel to the optical propagation axis, or inwardly or outwardly tapering, i.e. with respect to the optical propagation axis. 此外,构想这些壁可包括相对简单的线性壁或更复杂的弧形壁。 In addition, it is contemplated these walls may include a relatively simple linear walls or more complex curved wall. 还构想这些壁40的相应部分可包括不同形状和取向的不同壁部分的组合。 It is further contemplated these respective portions of the walls 40 may comprise a combination of different wall portions of different shapes and orientations.

[0032] 例如,注意改换的容器剖面可获得对控制电压中的变化更线性的响应,或者在由透镜调节的光学参数方面更佳或变差。 [0032] For example, note the change of the vessel cross-section can be obtained in the control voltage change is more linear response, or better or worse in the optical parameters of the lens by adjusting the aspect. 在其它情况下,可优选实现对控制电压中的变化的非线性或指数响应。 In other cases it may be preferable to achieve a change in the control voltage in non-linear or exponential response. 所构想的剖面包括但不限于:上述线性锥形剖面、双曲线锥形剖面、抛物线锥形剖面、圆柱剖面、矩形剖面、或其它线性或非线性剖面并包括它们的组合。 Sectional contemplated include but are not limited to: the above-described cross-sectional linear tapered, conical sectional hyperbolic, parabolic tapered section, a cylindrical cross section, a rectangular cross section, or other linear or non-linear cross section and including combinations thereof.

[0033] 虽然图1-3示出了具有基本连续容积的流体容器,其中第二不混溶流体22机械地将第一不混溶流体21耦合至第三不混溶流体23,但可构想第一不混溶流体21可通过第二不混溶流体22和一个或多个另外的不混溶流体机械地耦合至第三不混溶流体23。 [0033] Although Figures 1-3 show a container having a substantially continuous fluid volume, wherein the second immiscible fluid 22 is mechanically coupled to the first immiscible fluid 21 to the third immiscible fluid 23, but can be conceived a first immiscible fluid 21 through a second immiscible fluid 22 and one or more additional immiscible fluid is mechanically coupled to the third immiscible fluid 23. 此外,如图4所示,相对刚性部分50可在第二不混溶流体中设置以隔开流体、并帮助将相应的流体透镜表面13、15的运动彼此隔离、稳定透镜10的结构、使透镜10的组装容易等等。 In addition, as shown in FIG. 4, a relatively rigid portion 50 may be provided to separate the fluid and help the movement of the respective lens surfaces 13, 15 of the fluid isolated from each other in a second immiscible fluid, structural stability of the lens 10, so that lens 10 easy assembly and so on. 刚性部分50可设置为例如薄膜之类的相对薄层、或例如透明窗之类的相对厚的组件。 Rigid portion 50 may be provided, for example, relatively thin film and the like, or a component such as a relatively thick transparent window or the like.

[0034] 虽然第一、第二、以及第三不混溶流体21、22、23的特定成分超出本发明的范围, 但应当注意这些流体的不可混溶性通常归因于这些流体自身的性质。 [0034] Although the first, second, and third immiscible fluid 21, 22, outside the scope of the specific component in the present invention, it should be noted that these non-miscible fluids are usually attributed to the nature of the fluid itself. 优选这些流体包括具有相似密度的透明液体。 Preferably, these fluids comprise a transparent liquid having a similar density. 透镜内的毗邻流体通常具有不同的折射率且可具有不同极性。 Adjacent to the fluid within the lens typically has a different refractive index and may have different polarities. 例如而非作为限制,电响应油可用作第一和第三不可混溶流体,而水基流体可被提供作为第二不可混溶流体。 For example and not by way of limitation, the electrical response can be used as the first and third oil immiscible fluids, and water-based fluid may be provided as a second immiscible fluid. 美国专利No. 4,477,158和美国专利公开No. 2006/0152814提供涉及在透镜中使用不混溶流体的另外示教。 U.S. Patent No. 4,477,158 and U.S. Patent Publication No. 2006/0152814 relates to the use of immiscible fluids to provide additional teaching in the lens. 还构想流体的不混溶性可通过定位在流体之间的柔性膜被增强,或仅仅由该柔性膜引起。 It is further contemplated immiscible fluid can be enhanced by positioning the flexible membrane between the fluid or simply caused by the flexible film. 此外,注意根据本发明的不混溶流体不需要对透镜10 内的所有流体都不混溶。 In addition, attention is not required that all of the fluid 10 within the lens are not miscible immiscible fluids according to the present invention. 相反,流体仅需对毗邻的流体不混溶。 In contrast, only on the adjacent fluid immiscible fluids.

[0035] 从第一不混溶流体21的角度看,图1-4中所示的透镜表面13可称为凸面的。 [0035] From the perspective of a first immiscible fluid 21, the surface of the lens 13 shown in Figures 1-4 can be called convex surface. 同样,从第三不混溶流体23的角度看,图1-4中所示的透镜表面15可称为凸面的。 Similarly, from the perspective of the third immiscible fluid 23, the lens surface 15 shown in Figures 1-4 may be referred to a convex surface. 反之,图5中所示的透镜表面13、15可称为凹面的。 Conversely, the lens surface 13, 15 shown in FIG. 5 may be referred to concave. 因此,本发明的各实施例构想凸面或凹面的透镜表面。 Therefore, the lens surface convex or concave Example conceived various embodiments of the present invention. 另外,虽然未示出,但构想本发明的各实施例中的透镜表面13、15中的一个是凹面的,而另一个是凸面的。 Although not shown, embodiments of the present invention the concept of a lens surface 13, 15 is in a concave, and the other is convex. 不混溶流体21、22、23的性质、相关联的透镜表面界面壁40的性质、 以及在控制电极30、32、34处产生的电势的本质将协同确定在本发明中具体化的特定透镜表面形状。 21,22,23 immiscible fluid properties, surface and interface properties of the lens associated with the wall 40, and the nature of the potential at the control electrode 30, 32 will be generated at the synergy determination embodied in the present invention the particular lens surface shape.

[0036] 虽然图1-5中示出的透镜表面从穿过且平行于透镜10的光传播轴截取的截面看具有基本均勻的环形表面,但应当注意实际上这些透镜表面通常会不同于所示的均勻圆弧。 [0036] Although Figure 1-5 shows the lens surface from passing therethrough and parallel to the optical propagation axis section taken lens 10 viewed annular surface having a substantially uniform, it is noted that in fact these are usually different from the lens surface show uniform arc. 例如,凸透镜表面可更接近地近似椭圆或其他非圆形的圆弧,并且可在它们相应的横截面中包括平面或近似平面的表面部分。 For example, a convex lens surface may more closely approximate elliptical or other non-circular arc, and may include a planar or nearly planar surface portions in their respective cross-section. 此外,构想透镜流体可形成平坦或近似平坦的透镜表面。 In addition, it is contemplated the fluid lens may be formed flat or substantially flat surface of the lens.

[0037] 本发明的概念已参考电响应透镜流体的使用和相应的控制电极在以上进行了说明。 Concepts [0037] The present invention has been used with reference to the electrical response of the fluid lens and the corresponding control electrodes has been described above. 然而,还构想第一和第二透镜流体可包括液压响应的压敏透镜流体,其中凸透镜表面的曲率可通过控制向相应流体储存器的流体源来控制。 However, also contemplated that the first and second lens fluid may comprise a hydraulic fluid pressure-sensitive response of the lens, wherein the curvature of the convex lens surface may be controlled corresponding to the fluid source via a fluid reservoir control. 第一和第二流体源可以是不同的流体源或共用的流体源。 The first and second fluid source may be a fluid source or different fluid sources shared. 在美国专利No. 5,438,486和6,188,526中更具体地示教了在液体透镜内的压敏透镜流体的使用。 In U.S. Patent No. 5,438,486 and 6,188,526 more specifically teach the use of a liquid lens in the lens-sensitive fluid. 这些专利的仅对支持理解其中压敏流体透镜可被构造的本质有必要的那些部分通过引用结合于此。 Those portions of these patents are supported only understand the nature of the pressure sensitive fluid lens may be configured of necessary incorporated herein by reference.

[0038] 在根据本发明的流体透镜被配置成引导在光学系统中传播的光的情况下,构想这些透镜还可包括准直光学装置,这些准直光学装置被配置成使从例如激光芯片之类的输入光学装置被引导至例如SHG晶体之类的输出光学装置的光基本被准直。 [0038] In the case of being configured to direct light propagating in the optical system according to the present invention, the fluid lens, the idea of these lenses may also include a collimating optical means, such collimating optical means is arranged so that the laser chip from e.g. optical input means is directed to the class of the optical output of the optical means e.g. SHG crystal or the like is substantially collimated. 另外,可引入准直光学装置以减轻否则将落在可调节透镜上的光功率需求。 In addition, collimation optics may be introduced in order to reduce otherwise fall on the adjustable optical power demand on the lens. 具体地,准直光学装置可被配置成主要起系统的第一阶光学组件的作用,而可调节透镜可被设计成主要起二阶校正系统的作用。 In particular, collimation optics may be configured to effect a first-order optical component mainly from the system, and the adjustable lens may be designed to play a major role in the system of second order correction.

[0039] 根据本发明的可调节流体透镜在小规模和大规模光学_机械装置中具有特定用途,因为通常在这样的装置中难以确保光学元件的适当的机械对准。 [0039] According to the present invention, the fluid lens may be adjusted with a specific purpose in the small-scale and large-scale optical _ mechanical device, since such devices often difficult to ensure proper mechanical alignment of the optical element. 例如,在包括激光芯片和二次谐波产生(SHG)波导晶体光波长转换装置的半导体激光器的环境中,本发明已认识到经常有必要以亚微米公差对准光学组件。 For example, in a laser chip including a semiconductor laser and a second harmonic generation environment (SHG) crystal waveguide of the optical wavelength conversion device, the present invention has recognized that it is often necessary to submicron tolerances alignment optical components. 为了说明而不是限制,注意通过本发明构想的另外的光学_机械装置包括二次谐波发生激光器装置、泵浦激光器装置、以及其中单或多模光信号在光波导、光纤、光晶体、或各种有源或无源光学元件的组合之间传输的其他光学 For illustration and not limitation, additional optical alert by the present invention is contemplated _ mechanical means comprises a laser device, the pump laser second harmonic generation device, and wherein the single or multi-mode optical signal in an optical waveguide, optical fiber, optical crystal, or Other optical transmission between various combinations of active or passive optical elements

直ο Straight ο

[0040] 为了描述和定义本发明,注意在本文中采用术语“基本上”来表示可归因于任何数量的比较、值、测量、或其它表示的固有不确定程度。 [0040] In order to describe and define the present invention, note the use of the terms herein, "substantially" to indicate attributable to any number of comparison, value, measurement, or other representation of the inherent degree of uncertainty. 还在此采用术语“基本上”以表示数量表征可不同于规定参考值而不在此问题上导致本主题的基本功能改变的程度。 This is also the use of the term "substantially" to indicate the number is different from the specified reference value characterizing the extent of the basic functions without causing a change in this topic on this issue. 在此还采用术语“基本上”以表示数量表征必须不同于规定参考值以在此问题上获得主题的所列出的功能的最小程度。 Here also use the term "substantially" to indicate that a predetermined number of characterization must be different from the reference value to obtain the topic on this issue function listed minimum degree.

[0041] 已详细地并引用其具体实施例描述了本发明,显然在不背离所附权利要求书中所限定的本发明的范围的情况下多种修改和变化是可能的。 [0041] have been described in detail and by reference to specific embodiments of the present invention, apparently many modifications and variations without departing from the scope of the defined in the appended claims of the present invention are possible. 更具体地,虽然本发明的某些方面在此可被鉴别为优选的或特别有优势的,但应构想到本发明不一定限于本发明的这些方 More specifically, although some aspects of the invention may be identified herein as preferred or particularly advantageous, it is to be contemplated that the present invention is not necessarily limited to these parties of the invention

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Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
CN1720466A21 Nov 200311 Jan 2006皇家飞利浦电子股份有限公司Apparatus for forming variable fluid meniscus configurations
WO2004/038480A1 Title not available
WO2005/096289A1 Title not available
Classifications
International ClassificationG02B26/02, G02B3/14
Cooperative ClassificationG02B3/14, G02B26/005
European ClassificationG02B3/14, G02B26/00L1
Legal Events
DateCodeEventDescription
14 Oct 2009C06Publication
30 Dec 2009C10Request of examination as to substance
9 Mar 2011C14Granted
2 Jan 2013C17Cessation of patent right