公开(公告)号：EP2494388B1

公开(公告)日：2018-11-21

申请号：EP10801183.4

申请日：2010-10-26

Applicant: DigiLens Inc. ,  Rockwell Collins, Inc.

Inventor： WALDERN, Jonathan, David

IPC: G02B5/18 ,  G02B5/20 ,  G02B5/32 ,  G02B27/01 ,  G02F1/1334

CPC classification number: G02B27/0172 ,  G02B5/1819 ,  G02B5/1842 ,  G02B5/203 ,  G02B5/32 ,  G02B6/0028 ,  G02B27/017 ,  G02F1/13342 ,  G02F1/133615 ,  G02F1/133621 ,  G02F1/134309 ,  G02F1/13473 ,  G02F2001/13775 ,  G02F2201/123 ,  G02F2201/30 ,  G02F2201/307 ,  G02F2203/12 ,  G02F2203/62

Abstract: There is provided a wearable display comprising at least one Switchable Bragg Grating (SBG) device recorded in at least one Holographic Polymer Dispersed Liquid Crystal (HPDLC) layer. Each HPDLC layer is sandwiched between first and second transparent plates to which transparent electrodes have been applied. Each SBG device is characterized in that it provides a grating in a separate switchable region and is clear elsewhere. Each SBG device has a diffracting state and a non diffracting state. The transparent plates and HPDLC layers form a laminar structure which functions as a light guide. In one embodiment of the invention the display magnifies and forms a virtual image of information provided by an external image generator. In one embodiment of the invention the display and forms a virtual image of an image of information encoded in the SBG device.

公开(公告)号：EP3185374A1

公开(公告)日：2017-06-28

申请号：EP17154444.8

申请日：2011-02-28

Applicant: FUJIKURA LTD.

Inventor： OBA, Yasuhiro ,  NAKAI, Michihiro

IPC: H01S3/10 ,  H01S3/067 ,  H01S3/094 ,  H01S3/13 ,  H01S3/23 ,  G02F1/35 ,  G02F1/33 ,  G02F1/37 ,  H01S3/00 ,  H01S3/102 ,  H01S3/106 ,  H01S3/30

CPC classification number: H01S3/06754 ,  G02F1/33 ,  G02F1/3526 ,  G02F1/37 ,  G02F2201/04 ,  G02F2201/307 ,  H01S3/0078 ,  H01S3/0092 ,  H01S3/0675 ,  H01S3/094076 ,  H01S3/10015 ,  H01S3/10046 ,  H01S3/10069 ,  H01S3/10092 ,  H01S3/1022 ,  H01S3/1068 ,  H01S3/1301 ,  H01S3/2375 ,  H01S3/302

Abstract: A fiber laser device capable of restraining variations of the rise time of output laser light while shortening the rise time of the output laser light is provided. A fiber laser device (100) includes a seed laser light source (10), a pumping light source (20), an amplification optical fiber (30), a control unit (60), and an output instructing unit (65). When an output instruction is input to the control unit (60), the control unit (60) controls the seed laser light source (10) and the pumping light source (20) to be either in a pre-pumped state or in an output state. In the pre-pumped state, the pumping light source (20) outputs, for a predetermined period, pumping light with an intensity determined based on the duration of the period of time from when the output state prior to the input of the output instruction to the control unit (60) comes to an end till when the output instruction is input to the control unit (60). In the output state, to cause the output unit (50) to output laser light, the seed laser light source (10) outputs laser light, and the pumping light source (20) outputs pumping light.

Abstract translation: 提供一种能够缩短输出激光的上升时间并抑制输出激光的上升时间的偏差的光纤激光装置。 光纤激光装置100包括种子激光光源10，泵浦光源20，放大用光纤30，控制部60以及输出指示部65。 当输出指令被输入到控制单元（60）时，控制单元（60）控制种子激光源（10）和泵浦光源（20）处于预泵浦状态或输出 州。 在预泵送状态下，泵浦光源（20）输出预定时间段的泵浦光，该泵浦光的强度基于从输出指令输入之前的输出状态到输出指示之前的时间段的持续时间 直到输出指令被输入到控制单元（60）时，控制单元（60）结束。 在输出状态下，为了使输出单元（50）输出激光，种子激光光源（10）输出激光，并且泵浦光源（20）输出泵浦光。

公开(公告)号：EP2476081A4

公开(公告)日：2015-04-08

申请号：EP10816181

申请日：2010-09-10

Applicant: IDENTIX INC

Inventor： HAMRE JOHN D ,  MAASE DANIEL F

IPC: G06K9/74 ,  G02B6/42 ,  G02F1/13 ,  G02F1/1334 ,  G02F1/295 ,  G06K9/00 ,  H01L27/146 ,  H01L31/0232

CPC classification number: G06K9/0004 ,  G02B6/4214 ,  G02F1/1326 ,  G02F1/1334 ,  G02F1/295 ,  G02F2201/307 ,  G02F2203/62 ,  H01L27/14625 ,  H01L31/02327

Abstract: Apparatus and methods for providing an optically based planar scanner for generating an image are provided. In one embodiment, the apparatus includes a switchable Bragg grating. An area of the switchable Bragg grating is configured to be activated to direct light to a platen. The platen is configured to reflect the light to a waveguide or to refract the light. The light reflected to the waveguide is guided to a light detector. By activating a number of the areas of the switchable Bragg grating and measuring the intensity of the light with a light detector, an image of an object contacting the platen may be formed.

公开(公告)号：EP1415183B1

公开(公告)日：2012-02-15

申请号：EP02746263.9

申请日：2002-07-02

Applicant: Acreo AB

Inventor： FOKINE, Michael ,  NILSSON, Lars-Erik ,  CLAESSON, Asa ,  MARGULIS, Walter ,  KJELLBERG, Leif ,  ARSALANE, Hania ,  TORRES, Pedro

IPC: G02F1/01 ,  G02B6/02

CPC classification number: G02B6/02204 ,  C03C23/009 ,  C03C25/1063 ,  C03C25/47 ,  G02B6/022 ,  G02B6/105 ,  G02B6/266 ,  G02B6/4416 ,  G02F1/0115 ,  G02F1/0134 ,  G02F1/0147 ,  G02F2201/307

Abstract: PROBLEM TO BE SOLVED: To provide a polarization control element which may be easily produced and miniaturized and has high reliability. SOLUTION: A core region 11 is a region of a circular shape in cross section disposed at the center of an optical fiber 10 and has a refractive index n 1 . A clad region 12 is a region disposed around this core region 11 and has a refractive index n 2 smaller than the refractive index n 1 of the core region 11 . A pair of conductive parts 13 a and 13 b are respectively symmetrical with each other with respect to the optical axis center and are disposed within the clad region 12 over a specified range in a longitudinal direction. When current is passed to a pair of the conductive parts 13 a and 13 b, respectively, a stress is generated therein and a strain is generated in the core region 11 and the clad region 12 . The propagation light propagated in the optical fiber 10 is controlled in the polarization state according to this strain.

公开(公告)号：EP2228680A1

公开(公告)日：2010-09-15

申请号：EP10155986.2

申请日：2010-03-09

Applicant: Her Majesty the Queen in Right of Canada, As represented by the Minister of Industry

Inventor： Rideout, Howard ,  Seregelyi, Joe ,  Lu, Ping ,  Paquet, Stéphane ,  Yao, Jianping ,  Mihailov, Stephen J. ,  Oldham, John ,  Caron, Mario

IPC: G02F1/01 ,  H04B10/12

CPC classification number: G02F1/01 ,  G02F2201/16 ,  G02F2201/307 ,  G02F2203/055 ,  H04B2210/006

Abstract: A microwave photonic filter (300A,300B) and a method of filtering a high frequency electrical signal using photonic components is disclosed. The filter has a serially fiber-coupled laser source (310), a modulator (302), an optical filter (304A,304B), and a photodetector (306). The electrical signal is applied to the modulator. The modulated light propagates through the optical filter which is constructed to pass not only a modulated sideband (323'), but also at least a fraction of light at the carrier frequency (313) of the laser. The photodetector detects a signal at the beat frequency between the carrier and sideband signals, after both signals have propagated through the optical filter. As a result, a separate optical branch for light at the carrier frequency is not required, which considerably simplifies the filter construction and makes it more stable and reliable.

Abstract translation: 一种微波光子滤波器（300A，300B），并使用光子元件滤波的高频的电信号的方法是游离缺失盘。 该过滤器具有一个串联光纤耦合激光源（310），光学滤波器的调制器（302）（304A，304B），以及光电检测器（306）。 该电信号被施加到调制器。 经调制的光通过滤光器传播的所有其为构造成通过不仅一个调制边带（323“），所以，但至少一个在激光的载波频率（313）的光的分数。 光电检测器检测在载波和边带信号之间的差拍频率的信号，之后这两个信号都通过该光学滤光器传播。 其结果是，不需要用于在载波频率的光的单独光分支，这大大简化了过滤器构造，并且使得更加稳定可靠。

公开(公告)号：EP1969391A4

公开(公告)日：2009-12-09

申请号：EP06845312

申请日：2006-12-12

Applicant: PUSCASU IRINA

Inventor： PUSCASU IRINA ,  JOHNSON ED

IPC: G01S13/00 ,  G01N21/03 ,  H01Q15/00

CPC classification number: H01Q15/0066 ,  G01J3/108 ,  G01N21/3504 ,  G02F1/19 ,  G02F2201/083 ,  G02F2201/307 ,  G02F2202/10 ,  G02F2203/055 ,  G02F2203/10 ,  G02F2203/11 ,  G02F2203/48 ,  H01Q15/006

公开(公告)号：EP2017666A1

公开(公告)日：2009-01-21

申请号：EP08104798.7

申请日：2008-07-18

Applicant: Eudyna Devices Inc.

Inventor： Ishakawa, Tsutomu ,  Machida, Toyotoshi ,  Tanaka, Hirokazu

IPC: G02F1/01 ,  G02F1/313 ,  H01S5/125 ,  H01S5/06 ,  H01S5/026 ,  H01S5/12

CPC classification number: G02F1/0147 ,  G02F1/0121 ,  G02F1/3136 ,  G02F2201/307 ,  G02F2201/346 ,  H01S5/024 ,  H01S5/02415 ,  H01S5/0261 ,  H01S5/0612 ,  H01S5/0617 ,  H01S5/0687 ,  H01S5/1209 ,  H01S5/125

Abstract: An optical device includes an optical element (300), a detector (303) and a controller (304). The optical element (300) has an optical waveguide (301). The refractive index of the optical waveguide (301) is controlled by a heater (302). The temperature of the optical element (300) is controlled by a temperature control device. The detector (303) detects the current flowing in the heater (302) and/or the voltage applied to the heater (302). The controller (304) then controls the electrical power provided to the heater (302) so as to keep it constant, according to the detection result of the detector (303). This obviates the need for a temperature detector.

Abstract translation: 光学装置包括光学元件（300），检测器（303）和控制器（304）。 光学元件（300）具有光波导（301）。 光波导（301）的折射率由加热器（302）控制。 光学元件（300）的温度由温度控制装置控制。 检测器（303）检测在加热器（302）中流动的电流和/或施加到加热器（302）的电压。 然后，根据检测器（303）的检测结果，控制器（304）控制提供给加热器（302）的电力，使其保持恒定。 这消除了对温度检测器的需要。

公开(公告)号：EP1989580A1

公开(公告)日：2008-11-12

申请号：EP06805742.1

申请日：2006-09-16

Applicant: SWET OPTICS GMBH

Inventor： PETROV, Mikhail

IPC: G02B6/34

CPC classification number: G02F1/0311 ,  G02B6/124 ,  G02B2006/12107 ,  G02F1/011 ,  G02F1/0316 ,  G02F1/035 ,  G02F2201/307

Abstract: Area of application: Optics. Optical element comprising a Bragg phase grating (3), which is formed from electro-optical material or is inserted in an additional layer. The Bragg phase grating (3) is constructed as a series of periodically provided elevations (6) and depressions (7) of the surface of the waveguide (2), coated with a layer of the compensating (8) and a layer of the electrically insulating (9) material, along the propagation of the light. The phase grating (3) is equipped with a means for forming a spatially inhomogeneous, aperiodic, external electric field.

公开(公告)号：EP1471379B1

公开(公告)日：2008-05-28

申请号：EP04291001.8

申请日：2004-04-14

Applicant: Alcatel Lucent

Inventor： Riant, Isabelle ,  Belouet, Christian

IPC: G02F1/355 ,  G02F1/365

CPC classification number: B82Y20/00 ,  G02F1/3515 ,  G02F1/355 ,  G02F1/365 ,  G02F2201/307 ,  G02F2202/36 ,  G02F2203/055

公开(公告)号：EP1876490A1

公开(公告)日：2008-01-09

申请号：EP07111764.2

申请日：2007-07-04

Applicant: NIKON CORPORATION

Inventor： Iwane, Toru Nikon Corporation

IPC: G02F1/133 ,  G02F1/1334 ,  G03B17/20 ,  G09G3/34 ,  G09G3/36

CPC classification number: G02F1/13342 ,  G02F1/13306 ,  G02F1/133615 ,  G02F2201/307 ,  G03B13/28 ,  G03B17/44

Abstract: A display element that holds a layer of liquid crystal between substrates, includes a plurality of diffraction gratings (703, 704) having different diffraction modes, arranged in regions of the substrates that are different from one another.

Abstract translation: 在基板之间保持液晶层的显示元件包括具有不同衍射模式的多个衍射光栅（703,704），布置在彼此不同的基板的区域中。