公开(公告)号：US08811823B2

公开(公告)日：2014-08-19

申请号：US12247878

申请日：2008-10-08

Applicant: Yaakov Amitai

Inventor： Yaakov Amitai

IPC: H04J14/02 ,  G02B5/18 ,  G02F1/035 ,  G02B6/293 ,  G02B6/12

CPC classification number: G02F1/035 ,  G02B5/1866 ,  G02B6/1203 ,  G02B6/29304 ,  G02F2201/305 ,  H04J14/02

Abstract: The invention provides an optical device, including a light-transmissive substrate, and a pair of different, parallel gratings including a first grating and second grating, located on the substrate at a constant distance from each other, each of the pair of parallel gratings including at least one sequence of a plurality of parallel lines, wherein the spacings between the lines gradually increase from one edge of the grating up to a maximum distance between the lines, and wherein the arrangement of lines in the second grating is in the same direction as that of the first grating. A system utilizing a plurality of such optical devices is also disclosed.

Abstract translation: 本发明提供了一种光学器件，包括透光衬底和一对不同的平行光栅，包括第一光栅和第二光栅，位于衬底上彼此恒定的距离处，每对平行光栅包括 多个平行线的至少一个序列，其中线之间的间距从光栅的一个边缘逐渐增加到线之间的最大距离，并且其中第二光栅中的线的排列方向与 第一个光栅的。 还公开了利用多个这样的光学装置的系统。

公开(公告)号：US20140072257A1

公开(公告)日：2014-03-13

申请号：US13938506

申请日：2013-07-10

Applicant: Santec Corporation

Inventor： Yasuki Sakurai

IPC: G02B6/10

CPC classification number: G02B6/105 ,  G02B6/272 ,  G02B6/2793 ,  G02B6/29311 ,  G02F1/31 ,  G02F2201/305

Abstract: A wavelength selective optical switch includes a light input/output unit having a plurality of input/output ports, a polarization plane-independent wavelength dispersion element that splits incident light input from the optical input/output unit into spatially different angles for each wavelength, and synthesizes emergent light from different directions and outputs the light to the optical input/output unit, a condenser element that condenses the light split by the wavelength splitting element, a polarization splitter that splits incident light incident via the condenser element according to a polarization component to result in first and second light beams, aligns a polarization direction by rotating a polarization direction of one of the beams, and synthesizes the incident light by rotating one polarization direction of the emergent light of the same wavelength among the first and second reflected light beams, and a space phase modulation element.

Abstract translation: 波长选择光开关包括具有多个输入/输出端口的光输入/输出单元，与偏振平面无关的波长色散元件，其将从光输入/输出单元输入的入射光分成每个波长的空间不同的角度;以及 合成来自不同方向的出射光，并将光输出到光学输入/输出单元，聚光由波长分离元件分离的光的聚光元件，将根据偏振分量经由电容器元件入射的入射光分离的偏振分离器， 导致第一和第二光束，通过旋转一个光束的偏振方向来对准偏振方向，并且通过旋转第一和第二反射光束中相同波长的出射光的一个偏振方向来合成入射光， 和空间相位调制元件。

公开(公告)号：US20130194537A1

公开(公告)日：2013-08-01

申请号：US13753202

申请日：2013-01-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chongchang Mao ,  Minchun Li ,  Bo Chen ,  Yang Fang

IPC: G02F1/1335

CPC classification number: G02F1/31 ,  G02B3/005 ,  G02B5/12 ,  G02B6/29383 ,  G02B6/356 ,  G02B6/3594 ,  G02B17/0864 ,  G02B26/0808 ,  G02B27/285 ,  G02B27/286 ,  G02F1/0136 ,  G02F1/133528 ,  G02F1/133788 ,  G02F1/13471 ,  G02F1/292 ,  G02F2001/133538 ,  G02F2001/133541 ,  G02F2001/13355 ,  G02F2001/133757 ,  G02F2001/311 ,  G02F2201/305 ,  G02F2203/05 ,  G02F2203/07 ,  H04J14/0212 ,  H04Q3/00 ,  H04Q2011/0015 ,  H04Q2213/1301

Abstract: Apparatus and method embodiments are provided for implementing a wavelength selective switch (WSS). The embodiments use combinations of switchable polarization grating (SPG) and LC cells and combinations of polymer polarization grating (PPG) and LC cells to achieve 1×N WSS systems. An embodiment optical switch includes a liquid crystal cell and a SPG cell adjacent to the liquid crystal cell. The SPG includes liquid crystal material between two photo-alignment layers, an electrode layer overlying each photo-alignment layer, and a glass substrate overlying each electrode layer. An embodiment method includes polarizing an incident light beam at a circular polarization before diffracting, at a polarization grating, the polarized incident light beam in a determined angle that corresponds to a diffraction order in accordance to the circular polarization of the incident light beam and a hologram pattern direction formed inside the polarization grating.

Abstract translation: 提供了用于实现波长选择开关（WSS）的装置和方法实施例。 这些实施例使用可切换偏振光栅（SPG）和LC单元以及聚合物偏振光栅（PPG）和LC单元的组合的组合来实现1×N WSS系统。 实施例光开关包括液晶单元和与液晶单元相邻的SPG单元。 SPG包括在两个光取向层之间的液晶材料，覆盖每个光取向层的电极层和覆盖每个电极层的玻璃基板。 一种实施方式包括使入射光束以圆偏振偏振，在偏振光栅处以与入射光束的圆偏振相对应的衍射级的确定角度的偏振光入射光和全息图 形成在偏振光栅内部的图形方向。

公开(公告)号：US20130127689A1

公开(公告)日：2013-05-23

申请号：US13651652

申请日：2012-10-15

Applicant: Jacques Gollier

Inventor： Jacques Gollier

IPC: G09G3/20

CPC classification number: G02F1/133504 ,  G02B5/0215 ,  G02B5/1842 ,  G02F1/133502 ,  G02F2001/133562 ,  G02F2201/305

Abstract: Multi-colored pixelated displays are provided where a sparkle reduction surface comprising a micron grade diffraction element is positioned between the image display element and the display surface. More specifically, in accordance with one embodiment of the present disclosure, a multi-colored pixelated display is provided comprising an image display element and a transparent display cover. The image display element comprises an array of display pixels divided into a plurality of display sub-pixels associated with respective dedicated display color components. The transparent display cover comprises a display surface that is susceptible to marking and a sparkle reduction surface. The sparkle reduction surface is positioned between the image display element and the display surface along an optical path of the pixelated display and is spaced from the image display element by an optical distance D. The sparkle reduction surface comprises a micron grade diffraction element.

Abstract translation: 提供多色像素显示器，其中包括微米级衍射元件的闪光减少表面位于图像显示元件和显示表面之间。 更具体地，根据本公开的一个实施例，提供了包括图像显示元件和透明显示器盖的多色像素化显示器。 图像显示元件包括被分成与各个专用显示颜色分量相关联的多个显示子像素的显示像素的阵列。 透明显示盖包括易于标记的显示表面和闪光表面。 闪光减少表面沿着像素化显示器的光路定位在图像显示元件和显示表面之间，并且与图像显示元件间隔开光学距离D.闪光减少表面包括微米级衍射元件。

公开(公告)号：US08400706B2

公开(公告)日：2013-03-19

申请号：US13079441

申请日：2011-04-04

Applicant: Hideo Iizuka ,  Nader Engheta ,  Hisayoshi Fujikawa

Inventor： Hideo Iizuka ,  Nader Engheta ,  Hisayoshi Fujikawa

IPC: G02F1/33

CPC classification number: H01L41/09 ,  G01S7/4817 ,  G02F1/03 ,  G02F1/33 ,  G02F2201/305

Abstract: An acousto-optic laser beam scanner of improved scanning angle scope is provided by introducing a controllable compound acoustic waveform into a light transmissive body wherein at least binary and binary diffraction grating patterns of both positive and negative sense can be introduced into the body, the period of the waveform determining the refraction angle magnitude and the order of the pulses determining the refraction angle direction.

Abstract translation: 通过将可控的复合声波形引入到透光体中来提供改进的扫描角范围的声光激光束扫描器，其中至少可以将正，负两个方向的二进制和二进制衍射光栅图案引入体内， 确定折射角大小的波形和确定折射角方向的脉冲的顺序。

公开(公告)号：US08384861B2

公开(公告)日：2013-02-26

申请号：US12510424

申请日：2009-07-28

Applicant: Mary Lou Jepsen

Inventor： Mary Lou Jepsen

IPC: G02F1/1335 ,  G02F1/13

CPC classification number: G02F1/133555 ,  G02B5/18 ,  G02B5/1842 ,  G02F1/133615 ,  G02F2001/133607 ,  G02F2001/133618 ,  G02F2201/305 ,  G02F2203/62

Abstract: A liquid crystal display (LCD) comprises a light source; a light diffractor over the light source configured to diffract light received from the light source; a liquid crystal diffraction grating over the light diffractor and between liquid crystal pixel structures comprising a plurality of liquid crystal pixels; the liquid crystal diffraction grating has a changed diffraction index in response to application of a voltage differential across the diffraction grating, and when having the changed diffraction index aligns diffracted light received from the light diffractor into aligned light directed toward the liquid crystal pixel structure. An LCD may comprise a plurality of liquid crystal pixels each comprising a reflective part and a transmissive part, the reflective part of at least some of the plurality of liquid crystal pixels comprising a retroreflector configured to reflect at least some light rays, received from an external light source, toward the external light source.

Abstract translation: 液晶显示器（LCD）包括光源; 光源上的光衍射器，被配置为衍射从光源接收的光; 在所述光衍射器上方的液晶衍射光栅和包括多个液晶像素的液晶像素结构之间; 液晶衍射光栅响应于在衍射光栅上施加电压差而具有改变的衍射指数，并且当改变的衍射指数将从光衍射器接收的衍射光对准到朝向液晶像素结构的对准光时。 LCD可以包括多个液晶像素，每个液晶像素包括反射部分和透射部分，多个液晶像素中的至少一些液晶像素的反射部分包括被配置为反射从外部接收的至少一些光线的后向反射器 光源，朝向外部光源。

公开(公告)号：US08300512B2

公开(公告)日：2012-10-30

申请号：US12823162

申请日：2010-06-25

Applicant: Yukihiro Tao ,  Kenichi Yuyama

Inventor： Yukihiro Tao ,  Kenichi Yuyama

IPC: G11B7/00

CPC classification number: G11B7/1353 ,  G02B5/1828 ,  G02B5/3016 ,  G02B5/3083 ,  G02B26/0808 ,  G02F1/13 ,  G02F1/133365 ,  G02F1/133371 ,  G02F1/1337 ,  G02F1/133707 ,  G02F1/31 ,  G02F2001/133726 ,  G02F2001/13706 ,  G02F2001/13712 ,  G02F2201/305 ,  G02F2203/28 ,  G11B7/1369

Abstract: A liquid crystal element includes: a transparent substrate; and a liquid crystal layer including: a liquid crystal material; and a concavo-convex portion including periodic concaves and convexes, wherein the concavo-convex portion is aligned so that a longitudinal direction of liquid crystal molecules that are positioned on a side of the transparent substrate and on a concavo-convex surface that is an interface of the concavo-convex portion substantially becomes a vertical direction with respect to a concavo-convex surface on the side of the transparent substrate, or a longitudinal direction of liquid crystal molecules that are positioned on a side, in which a medium is disposed and which is opposite to the transparent substrate, and on the concavo-convex surface that is the interface of the concavo-convex portion substantially becomes the vertical direction with respect to a concavo-convex surface on the side, in which the medium is disposed, to form a diffraction grating.

Abstract translation: 液晶元件包括：透明基板; 和液晶层，包括：液晶材料; 以及包括周期性凹凸的凹凸部，其中，所述凹凸部对准，使得位于所述透明基板的一侧的液晶分子的纵向方向和作为界面的凹凸面 相对于透明基板一侧的凹凸面或位于配置有介质的一侧的液晶分子的纵向方向，凹凸部基本上成为垂直方向，哪个 与透明基板相对，并且作为凹凸部的界面的凹凸面基本上成为相对于设置介质的一侧的凹凸面的垂直方向，形成 衍射光栅。

公开(公告)号：US08225241B2

公开(公告)日：2012-07-17

申请号：US12267820

申请日：2008-11-10

Applicant: Matthias Fertig ,  Nikolaj Moll ,  Thomas E. Morf ,  Thomas Pflueger

Inventor： Matthias Fertig ,  Nikolaj Moll ,  Thomas E. Morf ,  Thomas Pflueger

IPC: G06F17/50

CPC classification number: H01L31/105 ,  B82Y20/00 ,  G02F1/015 ,  G02F1/01708 ,  G02F2001/0154 ,  G02F2201/124 ,  G02F2201/305 ,  H04N21/23424 ,  H04N21/42202 ,  H04N21/44016 ,  H04N21/44218

Abstract: A method and apparatus for designing a device to operate in a coupling mode, a detection mode, or a reflection mode for incident light. The incident light has a wavelength λ and is incident upon a semiconductor structure of the device at an angle of incidence (θi). A voltage (V) is applied to the device. Each mode may be designed for an ON state and/or OFF state. For the coupling mode and detection mode, the ON state and OFF state is characterized by high and low absorption of the incident light, respectively, by the semiconductor structure in conjunction with the applied voltage V and angle of incidence θi. For the reflection mode, the OFF state and ON states is characterized by a shift in the optical path length of λ/2 and about zero, respectively, in conjunction with the applied voltage V and angle of incidences θi.

Abstract translation: 一种用于设计在入射光的耦合模式，检测模式或反射模式下工作的装置的方法和装置。 入射光具有波长λ并且以入射角入射到器件的半导体结构（I）上。 电压（V）被施加到器件。 每个模式可以被设计为ON状态和/或OFF状态。 对于耦合模式和检测模式，ON状态和OFF状态的特征在于分别由半导体结构与施加的电压V和入射角相关的入射光的高吸收和低吸收; i。 对于反射模式，关断状态和导通状态的特征在于分别与施加的电压V和发生角度的角度相关联的λ/ 2的光程长度和大约零的偏移; i。

公开(公告)号：US20120134007A1

公开(公告)日：2012-05-31

申请号：US13366670

申请日：2012-02-06

Applicant: Hilmar GUGEL ,  Volker SEYFRIED

Inventor： Hilmar GUGEL ,  Volker SEYFRIED

IPC: G02F1/11

CPC classification number: G02F1/116 ,  G02B3/0087 ,  G02B21/0032 ,  G02B21/0064 ,  G02B21/16 ,  G02B27/0927 ,  G02B27/42 ,  G02B27/46 ,  G02F1/00 ,  G02F1/01 ,  G02F1/03 ,  G02F1/11 ,  G02F1/29 ,  G02F1/33 ,  G02F1/353 ,  G02F2201/305 ,  G02F2202/32 ,  G02F2203/12 ,  G02F2203/18 ,  G02F2203/24

Abstract: An acousto-optical filter element (114) is provided which has an acousto-optical crystal (118) having an acoustic signal transmitter (120) for generating acoustic signals in the acousto-optical crystal (118). The acousto-optical crystal (118) is designed to selectively spatially deflect light of a target wavelength from an input light beam (116) entering into the acousto-optical crystal (118), as a function of a high frequency applied to the acoustic signal transmitter (120), and to thereby produce a target light beam (126) having the target wavelength. In addition, the acousto-optical filter element (114) includes a spatial filter element (132) which is located in the target light beam (126) and is designed to selectively suppress the intensity of the target light beam (126) in a plane perpendicular to the propagation direction of the target light beam (126).

Abstract translation: 提供一种声光滤波器元件（114），其具有声光晶体（118），该声光晶体具有用于在声光晶体（118）中产生声信号的声信号发射器（120）。 声光晶体（118）被设计为根据进入声光晶体（118）的输入光束（116）选择性地空间偏转目标波长的光，作为施加到声信号的高频的函数 发射器（120），从而产生具有目标波长的目标光束（126）。 此外，声光滤波器元件（114）包括位于目标光束（126）中的空间滤光元件（132），并被设计成选择性地抑制平面中的目标光束（126）的强度 垂直于目标光束（126）的传播方向。

公开(公告)号：US08184667B2

公开(公告)日：2012-05-22

申请号：US12964014

申请日：2010-12-09

Applicant: An-Chung Chiang ,  Shou-Tai Lin ,  Yen-Chieh Huang ,  Yen-Yin Lin ,  Guey-Wu Chang

Inventor： An-Chung Chiang ,  Shou-Tai Lin ,  Yen-Chieh Huang ,  Yen-Yin Lin ,  Guey-Wu Chang

IPC: H01S3/11 ,  H01S3/115 ,  H01S3/10

CPC classification number: G02F1/292 ,  G02F1/3558 ,  G02F1/3775 ,  G02F2201/305 ,  H01S3/0602 ,  H01S3/09415 ,  H01S3/108 ,  H01S3/1083 ,  H01S3/109 ,  H01S3/115 ,  H01S3/1673

Abstract: The configurations of an electro-optic Bragg deflector and the methods of using it as a laser Q-switch in a Q-switched laser and in a Q-switched wavelength-conversion laser are provided. As a first embodiment, the electro-optic Bragg deflector comprises an electrode-coated electro-optic material with one of a 1D and a 2D spatially modulated electro-optic coefficient. When a voltage is supplied to the electrodes, the electro-optic material behaves like a Bragg grating due to the electro-optically induced spatial modulation of the refractive index. The second embodiment relates to an actively Q-switched laser, wherein the electro-optic Bragg deflector functions as a laser Q-switch. The third embodiment of the present invention combines the Q-switched laser and a laser-wavelength converter to form a Q-switched wavelength-conversion laser, wherein the EO Bragg deflector can be monolithically integrated with a quasi-phase-matching wavelength converter in a fabrication process.

Abstract translation: 提供了电光布拉格偏转器的结构以及将其用作Q开关激光器和Q开关波长转换激光器中的激光Q开关的方法。 作为第一实施例，电光布拉格偏转器包括具有1D和2D空间调制的电光系数之一的电极涂覆的电光材料。 当向电极提供电压时，由于电光诱导的折射率的空间调制，电光材料的行为类似于布拉格光栅。 第二实施例涉及一种主动Q开关激光器，其中电光布拉格偏转器用作激光Q开关。 本发明的第三实施例将Q开关激光器和激光波长转换器组合以形成Q开关波长转换激光器，其中EO布拉格偏转器可以与准相位匹配波长转换器单片集成在 制造工艺。