公开(公告)号：US20150370073A1

公开(公告)日：2015-12-24

申请号：US14743628

申请日：2015-06-18

Applicant: Commissariat à I'énergie atomique et aux énergies alternatives

Inventor： Christophe MARTINEZ

IPC: G02B27/01 ,  G02B5/18

CPC classification number: G02B27/0172 ,  G02B5/18 ,  G02B6/00 ,  G02B6/0011 ,  G02B6/0036 ,  G02B2027/0105 ,  G02B2027/0118 ,  G02B2027/0123 ,  G02B2027/015 ,  G02F1/313 ,  G02F2201/305

Abstract: An image projection device, including: at least one waveguide formed in a substrate; and at least one extraction device including a plurality of extraction cells coupled to different areas of the guide, each cell being capable of being electrically activated to extract light from the guide and project this light along a predetermined projection direction, wherein different extraction cells have projection directions with different orientations.

Abstract translation: 一种图像投影装置，包括：形成在基板中的至少一个波导; 以及至少一个提取装置，其包括耦合到所述引导件的不同区域的多个提取单元，每个单元能够被电激活以从所述引导件提取光并沿着预定的投影方向投射所述光，其中不同的提取单元具有投影 具有不同方位的方向

公开(公告)号：US20150293409A1

公开(公告)日：2015-10-15

申请号：US14425674

申请日：2012-09-05

Applicant: Naru Usukura ,  Hiromi Katoh ,  Yuichi Kanbayashi ,  Norbert Leister ,  Ralf Haussler

Inventor： Naru Usukura ,  Hiromi Katoh ,  Yuichi Kanbayashi ,  Norbert Leister ,  Ralf Haussler

IPC: G02F1/1337 ,  G02B27/22

CPC classification number: G02F1/133753 ,  G02B27/2214 ,  G02F1/1337 ,  G02F1/134309 ,  G02F1/13471 ,  G02F1/1393 ,  G02F1/292 ,  G02F2001/13373 ,  G02F2001/133738 ,  G02F2001/133742 ,  G02F2001/133746 ,  G02F2001/133749 ,  G02F2001/133761 ,  G02F2001/133769 ,  G02F2201/305 ,  G02F2203/24 ,  G03H1/2205 ,  G03H1/2294 ,  G03H2001/2242 ,  G03H2223/23 ,  G03H2225/11 ,  G03H2225/22

Abstract: The present invention relates to a controllable diffraction device for a light modulator device. The controllable diffraction device comprises at least two substrates, at least one electrode on each of said substrates facing each other, and liquid crystals forming at least one liquid crystal layer arranged between said electrodes on said substrates. The orientation of the liquid crystals is controllable by a voltage supplied to the electrodes. The liquid crystal layer is provided on at least one alignment layer arranged on at least one electrode on said substrates. The liquid crystals close to the alignment layer are pre-oriented by at least one pre-tilt angle relative to the alignment layer such that the resulting light diffraction in opposite spatial directions is approximately equal.

Abstract translation: 本发明涉及一种用于光调制装置的可控衍射装置。 可控衍射装置包括至少两个基板，每个所述基板上的至少一个电极彼此面对，以及形成至少一个液晶层的液晶，所述液晶层布置在所述基板上的所述电极之间。 液晶的取向由供给电极的电压控制。 液晶层设置在布置在所述基板上的至少一个电极上的至少一个取向层上。 靠近对准层的液晶相对于取向层预先取向至少一个预倾角，使得相反空间方向的所得光衍射近似相等。

公开(公告)号：US09008470B2

公开(公告)日：2015-04-14

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: G02F1/295 ,  G02F1/1335 ,  G02F1/01 ,  G02F1/31 ,  G02B27/28 ,  G02F1/1347 ,  H04Q3/00 ,  G02B6/35 ,  H04J14/02 ,  G02B17/08 ,  G02F1/1337 ,  G02F1/29 ,  G02B26/08 ,  H04Q11/00 ,  G02B3/00 ,  G02B5/12

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：US20150042938A1

公开(公告)日：2015-02-12

申请号：US14369441

申请日：2013-12-19

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Shiming Shi ,  Ling Shi ,  Tao Sun ,  Yunfei Li

IPC: G02F1/1343 ,  G02F1/1341 ,  G02F1/1333

CPC classification number: G02F1/134309 ,  G02F2201/305 ,  Y10T29/49124

Abstract: The present invention discloses a liquid crystal grating, a manufacturing method and a drive method thereof, and an optical phased array. In the liquid crystal grating, plurality of first electrodes are formed on a lower substrate with first gaps formed between adjacent first electrodes, second electrodes are further provided above the first gaps with second gaps formed between adjacent second electrodes, and an insulation layer is provided between the first electrodes and the second electrodes. When voltages are applied to the first electrodes and the second electrodes, continuously and smoothly changing electric field is generated inside the liquid crystal grating, and then phases of incident light may be controlled continuously and smoothly, which improves the ability of the liquid crystal grating to modulate light beam.

Abstract translation: 本发明公开了一种液晶光栅，其制造方法和驱动方法以及光相控阵。 在液晶光栅中，多个第一电极形成在下基板上，其中在相邻的第一电极之间形成有第一间隙，在第一间隙的上方还设置有在相邻的第二电极之间形成的第二间隙的第二电极之间， 第一电极和第二电极。 当向第一电极和第二电极施加电压时，在液晶光栅内部产生连续平滑地变化的电场，然后可以连续平稳地控制入射光的相位，这提高了液晶光栅的能力 调制光束。

公开(公告)号：US20140321796A1

公开(公告)日：2014-10-30

申请号：US14260972

申请日：2014-04-24

Applicant: Sumitomo Electric Industries, Ltd.

Inventor： Takafumi OHTSUKA ,  Hidehisa TAZAWA

IPC: G02F1/313

CPC classification number: G02B6/356 ,  G02F1/31 ,  G02F2201/305 ,  H04J14/0212

Abstract: A wavelength selective switch includes a light input and output part in which light input/output ports are arranged in a predetermined direction, the light input/output ports including a first port for inputting light, a second port for outputting the light, and at least one third port for inputting or outputting the light, a wavelength dispersive element optically coupled to the light input and output part, and a phase modulation element which includes a plurality of pixels performing phase modulation and diffractively deflects an optical path of the light arriving from the first port via the wavelength dispersive element by presenting a diffraction-grating-shaped phase modulation pattern, and the light input/output ports are arranged so that a 1st order light of the light is incident on the second port, and the first port and the third port are spaced from an optical axis of a −1st order light of the light.

Abstract translation: 波长选择开关包括光输入/输出部分，光输入/输出端口沿预定方向布置，光输入/输出端口包括用于输入光的第一端口，用于输出光的第二端口，至少 用于输入或输出光的第三端口，光耦合到光输入和输出部分的波长色散元件，以及相位调制元件，其包括执行相位调制的多个像素，并且衍射从所述光输入和输出部分到达的光的光路 通过呈现衍射光栅状相位调制图案经由波长色散元件的第一端口，并且光输入/输出端口被布置成使得第一级光入射在第二端口上，并且第一端口和 第三端口与光的第一级光的光轴间隔开。

公开(公告)号：US08867580B2

公开(公告)日：2014-10-21

申请号：US13893420

申请日：2013-05-14

Applicant: Steven James Frisken

Inventor： Steven James Frisken

IPC: H01S3/10 ,  H01S5/14 ,  G02F1/01 ,  H01S3/00 ,  G02F1/1333 ,  H01S3/1055 ,  G02F1/29 ,  H01S5/022 ,  H01S3/082 ,  H01S3/106

CPC classification number: H01S3/0085 ,  G02F1/01 ,  G02F1/133371 ,  G02F1/292 ,  G02F2201/305 ,  G02F2203/24 ,  G02F2203/50 ,  G02F2203/585 ,  H01S3/0826 ,  H01S3/1055 ,  H01S3/106 ,  H01S5/02248 ,  H01S5/141

Abstract: Described herein is a tunable optical filter (1). The filter includes a phase manipulation layer in the form of a liquid crystal material (3) and a diffractive layer in the form of a diffraction grating (5) sandwiched between an upper glass layer (7) and lower silicon layer (9). Grating (5) includes a grating structure (11) etched therein for angularly diffracting an input optical signal into a plurality of constituent wavelength components according to wavelength. Material (3) includes a two-dimensional array of independently addressable pixels (13), each pixel configured for receiving a drive signal and, in response to the drive signal, selectively modifying the phase of the wavelength components incident onto each pixel to directionally steer the components along respective angularly separated paths. By suitable steering of the wavelength components, at least one wavelength component is coupled along a predetermined collection path to an optical system such as a laser cavity.

Abstract translation: 这里描述的是可调谐滤光器（1）。 滤光器包括液晶材料（3）形式的相位操作层和夹在上玻璃层（7）和下硅层（9）之间的衍射光栅（5）形式的衍射层。 光栅（5）包括蚀刻在其中的光栅结构（11），用于根据波长将输入光信号角度地衍射成多个组成波长分量。 材料（3）包括可独立寻址的像素（13）的二维阵列，每个像素配置用于接收驱动信号，并且响应于驱动信号选择性地修改入射到每个像素上的波长分量的相位以定向转向 沿着相应的角度分离的路径的部件。 通过波长分量的适当转向，至少一个波长分量沿着预定的收集路径耦合到诸如激光腔的光学系统。

公开(公告)号：US20130308662A1

公开(公告)日：2013-11-21

申请号：US13893420

申请日：2013-05-14

Applicant: Steven James Frisken

Inventor： Steven James Frisken

IPC: H01S3/00 ,  G02F1/01

CPC classification number: H01S3/0085 ,  G02F1/01 ,  G02F1/133371 ,  G02F1/292 ,  G02F2201/305 ,  G02F2203/24 ,  G02F2203/50 ,  G02F2203/585 ,  H01S3/0826 ,  H01S3/1055 ,  H01S3/106 ,  H01S5/02248 ,  H01S5/141

Abstract: Described herein is a tunable optical filter (1). The filter includes a phase manipulation layer in the form of a liquid crystal material (3) and a diffractive layer in the form of a diffraction grating (5) sandwiched between an upper glass layer (7) and lower silicon layer (9). Grating (5) includes a grating structure (11) etched therein for angularly diffracting an input optical signal into a plurality of constituent wavelength components according to wavelength. Material (3) includes a two-dimensional array of independently addressable pixels (13), each pixel configured for receiving a drive signal and, in response to the drive signal, selectively modifying the phase of the wavelength components incident onto each pixel to directionally steer the components along respective angularly separated paths. By suitable steering of the wavelength components, at least one wavelength component is coupled along a predetermined collection path to an optical system such as a laser cavity.

Abstract translation: 这里描述的是可调谐滤光器（1）。 滤光器包括液晶材料（3）形式的相位操作层和夹在上玻璃层（7）和下硅层（9）之间的衍射光栅（5）形式的衍射层。 光栅（5）包括蚀刻在其中的光栅结构（11），用于根据波长将输入光信号角度地衍射成多个组成波长分量。 材料（3）包括可独立寻址的像素（13）的二维阵列，每个像素配置用于接收驱动信号，并且响应于驱动信号选择性地修改入射到每个像素上的波长分量的相位以定向转向 沿着相应的角度分离的路径的部件。 通过波长分量的适当转向，至少一个波长分量沿着预定的收集路径耦合到诸如激光腔的光学系统。

公开(公告)号：US20130293818A1

公开(公告)日：2013-11-07

申请号：US13814018

申请日：2011-07-29

Applicant: Mitsuhiro Murata ,  Shuichi Kozaki ,  Takehisa Sakurai ,  Yosuke Iwata

Inventor： Mitsuhiro Murata ,  Shuichi Kozaki ,  Takehisa Sakurai ,  Yosuke Iwata

IPC: G02F1/1343

CPC classification number: G02F1/13439 ,  G02F1/133707 ,  G02F1/134363 ,  G02F2201/305

Abstract: A liquid crystal panel (2) is a vertical alignment type liquid crystal panel using a horizontal electric field driving system which performs display by driving a liquid crystal layer (50) interposed between substrates (10, 20) in a horizontal electric field, each pixel includes three sub-pixels (6R, 6G, and 6B), which are of red, green, and blue, comb-shaped electrodes (14, 15) include a function as a diffraction grating with the comb-shaped electrodes (14, 15) and spaces between the comb-shaped electrodes (14, 15), and pitch distances (D) between electrodes are set such that an optical diffraction efficiency for red wavelength and an optical diffraction efficiency for green wavelength are greater than an optical diffraction efficiency for blue wavelength. Thus, it is possible to provide a liquid crystal panel and a liquid crystal display apparatus having a wide viewing angle with less color change with a simple configuration.

Abstract translation: 液晶面板（2）是使用水平电场驱动系统的垂直取向型液晶面板，其通过在水平电场中驱动介于基板（10,20）之间的液晶层（50）来进行显示，每个像素 包括红色，绿色和蓝色梳状电极（14,15）的三个子像素（6R，6G和6B）包括具有梳状电极（14,15）的衍射光栅的功能 ）和梳状电极（14,15）之间的间隔和电极之间的间距（D）设定为使得红色波长的光学衍射效率和绿色波长的光学衍射效率大于用于 蓝色波长。 因此，可以以简单的结构提供具有宽的视角的液晶面板和液晶显示装置，具有较少的颜色变化。

公开(公告)号：US08543961B2

公开(公告)日：2013-09-24

申请号：US13492964

申请日：2012-06-11

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 incidence 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，并以入射角入射到器件的半导体结构上。 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，通过半导体结构分别与入射电压V和入射角分别对入射光进行高吸收和低吸收。 对于反射模式，关闭状态和导通状态的特征在于分别与施加的电压V和入射角相关联的λ/ 2的光程长度和大约零的偏移。

公开(公告)号：US20130038804A1

公开(公告)日：2013-02-14

申请号：US13571997

申请日：2012-08-10

Applicant: Wang-Yang Li ,  Ting-Yi Wu

Inventor： Wang-Yang Li ,  Ting-Yi Wu

IPC: G02F1/1335

CPC classification number: G02F1/133504 ,  G02B5/1814 ,  G02B5/1819 ,  G02B27/281 ,  G02F1/1393 ,  G02F2001/133562 ,  G02F2001/133742 ,  G02F2001/133761 ,  G02F2201/305

Abstract: A display apparatus and a polarizer for multi-domain vertical aligned liquid crystal display apparatus are provided. The display apparatus includes a liquid crystal display device, a first polarizer, a second polarizer and a diffractive optical element. The first polarizer is disposed on the first substrate. The second polarizer is disposed between the second substrate and the backlight module. The diffractive optical element includes a first diffraction grating and is disposed on a light emitting side of the first polarizer. An azimuth angle the first diffraction grating is counted from an absorbing axis of the first polarizer as standard.

Abstract translation: 提供了一种用于多域垂直排列液晶显示装置的显示装置和偏振器。 显示装置包括液晶显示装置，第一偏振器，第二偏振器和衍射光学元件。 第一偏振器设置在第一基板上。 第二偏振器设置在第二基板和背光模块之间。 衍射光学元件包括第一衍射光栅，并且设置在第一偏振器的发光侧。 第一衍射光栅作为标准从第一偏振片的吸收轴计数的方位角。