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公开(公告)号：US20150309342A1
公开(公告)日：2015-10-29
申请号：US14694386
申请日：2015-04-23
Applicant: LENSVECTOR INC.
Inventor： Tigran GALSTIAN , Vladimir PRESNIAKOV , Karen ASATRYAN , Armen ZOHRABYAN
IPC: G02F1/135 , G02F1/1343
CPC classification number: G02F1/134309 , G02F1/13439 , G02F1/13471 , G02F1/135 , G02F2001/294 , G02F2203/06
Abstract: Variable liquid crystal devices for controlling the propagation of light through a liquid crystal layer use a frequency dependent material to dynamically reconfigure effective electrode structures in the device. The frequency of a drive signal that generates an electric field in the device can be varied, and the frequency dependent material has different charge mobilities for the different frequencies. At a low charge mobility, the frequency dependent material has little effect on the existing electrode structures. However, at a high charge mobility, the frequency dependent material appears as an extension of the fixed electrodes, and can be used to change the effective electrode structure and, thereby, the spatial profile of the electric field. This, in turn, changes the optical properties of the liquid crystal, thus allowing the optical device to be frequency controllable.
Abstract translation: 用于控制光通过液晶层的传播的可变液晶装置使用频率相关材料来动态地重新配置装置中的有效电极结构。 可以改变在器件中产生电场的驱动信号的频率，并且频率相关材料对于不同的频率具有不同的电荷迁移率。 在低电荷迁移率下，频率相关材料对现有的电极结构几乎没有影响。 然而，在高电荷迁移率下，频率相关材料表现为固定电极的延伸，并且可用于改变有效电极结构，从而改变电场的空间分布。 这又改变了液晶的光学特性，从而允许光学器件是频率可控的。
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2.发明申请METHOD AND APPARATUS FOR TESTING OPERATION OF AN OPTICAL LIQUID CRYSTAL DEVICE 有权用于测试光学液晶装置操作的方法和装置公开(公告)号：US20150346524A1
公开(公告)日：2015-12-03
申请号：US14817275
申请日：2015-08-04
Applicant: LensVector Inc.
Inventor： Bahram AFSHARI , Karen ASATRYAN , Peter P. CLARK , Tigran GALSTIAN , Michael J. NYSTROM , Vladimir PRESNIAKOV , Sergei YAKOVENKO , Armen ZOHRABYAN
CPC classification number: G02F1/133351 , G01R1/071 , G02F1/1309 , G09G3/006 , Y10T29/49002 , Y10T29/49117 , Y10T29/49771
Abstract: Methods and apparatus for testing operation of a single or multiple tunable active optical device(s) operated by one or more driving electrodes are described. Test methods and apparatus are provided for device testing without necessarily requiring direct physical contact with the driving electrodes. Testing subjects devices to incident light along an optical path and to an external electric field applied to the device producing a dipolar charge distribution within the electrodes, causing the device to operate. The effect of device operation on incident light is optically sensed. The sensed effect is analyzed to identify device defects. Test methods and apparatus are provided for testing multiple unsingulated devices during fabrication employing a strip contact structure having contact strips connected to multiple devices and extending to wafer edges, such that singulating devices leaves portions of the strip contact structure exposed on device dice edges providing electrical contacts in use.
Abstract translation: 描述用于测试由一个或多个驱动电极操作的单个或多个可调谐有源光学器件的操作的方法和装置。 提供测试方法和装置用于器件测试，而不必要求与驱动电极直接物理接触。 测试设备沿着光学路径入射光并施加到施加到器件的外部电场，从而在电极内产生偶极电荷分布，使器件工作。 光学检测器件操作对入射光的影响。 分析检测到的效果以识别设备缺陷。 提供了测试方法和装置，用于在制造过程中测试多个不起毛的装置，使用具有连接到多个装置并且延伸到晶片边缘的接触条的带状接触结构，使得分离装置离开条形接触结构的部分，暴露在器件骰子边缘上， 正在使用。
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公开(公告)号：US20230229032A1
公开(公告)日：2023-07-20
申请号：US17997747
申请日：2021-05-04
Applicant: LENSVECTOR INC.
Inventor： Tigran GALSTIAN , Armen ZOHRABYAN , Simon CAREAU
CPC classification number: G02F1/13306 , G02B27/0068 , G02B27/286 , G02F2203/07
Abstract: Liquid crystal (LC) beam control devices using a dispersion shaped (DS) half wave plate (HWP), with specific physical characteristics, allows the broadened beam to maintain significantly better the color cohesion. Beneficial aspects of using a HWP with an appropriate thickness and birefringence index which makes it inefficient in the blue wavelength spectrum, therefore reducing the blue photon depletion in the center of the broadened beam is described herein. Combinations of an homeotropic LC cell and DS HWP structures for reduced color separation, faster relaxation time and reduced ground state scattering is further described herein.
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公开(公告)号：US20180196318A1
公开(公告)日：2018-07-12
申请号：US15913181
申请日：2018-03-06
Applicant: LENSVECTOR INC.
Inventor： Vladimir PRESNIAKOV , Karen ASATRYAN , Armen ZOHRABYAN , Tigran GALSTIAN , Aram BAGRAMYAN , Simon CAREAU
IPC: G02F1/1343 , G02F1/1337
CPC classification number: G02F1/134309 , G02F1/1337 , G02F1/29 , G02F2001/134372 , G02F2001/134381 , G02F2203/26 , G02F2203/50
Abstract: Liquid crystal light beam control devices and their manufacture are described. Beneficial aspects of beam broadening devices employed for controlled illumination and architectural purposes are presented including improving beam divergence control, improving beam broadening dynamic range control, beam divergence preconditioning, improving projected beam intensity uniformity.
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5.发明申请公开(公告)号：US20160000557A1
公开(公告)日：2016-01-07
申请号：US14653574
申请日：2013-12-18
Applicant: LENSVECTOR INC.
Inventor： Tigran GALSTIAN , Karen ASATRYAN , Vladimir PRESNIAKOV , Aram BAGRAMYAN , Amir TORK , Armen ZOHRABYAN , Simon CAREAU
IPC: A61F2/16 , G02B13/00 , G02F1/29 , G02F1/1343 , G02F1/1337
CPC classification number: A61F2/1627 , A61F2/16 , A61F2/1648 , A61F2210/0076 , G02B1/16 , G02B13/0075 , G02F1/1337 , G02F1/134309 , G02F1/13439 , G02F1/29
Abstract: A liquid crystal optical device is provided, including a layered structure including at least two support substrates. An external hole patterned control electrode is provided on one of the substrates and has an aperture. An internal hole patterned control electrode is provided on one of the substrates within the aperture, the internal and outer control electrodes being separated by a gap, which forms part of the aperture. A weakly conductive material is provided on one of the substrates over the aperture. A planar transparent electrode is provided on another one of the substrates. An alignment surface is provided on the substrates over the electrodes. A layer of liquid crystal material is contained by the substrates and in contact with the alignment surface of the substrates. A floating transparent electrode is provided on a side of one of the substrates opposite the outer and the internal hole patterned electrode.
Abstract translation: 提供了一种液晶光学器件，其包括包括至少两个支撑衬底的层状结构。 一个外部孔图案化控制电极设置在其中一个基板上并且具有孔。 孔内图案化的控制电极设置在孔内的一个基板上，内部和外部控制电极被形成孔的一部分的间隙分开。 在孔上的一个基底上提供弱导电材料。 平面透明电极设置在另一个基板上。 在电极上的基板上设置对准表面。 液晶材料层由基板包含并与基板的对准表面接触。 浮置的透明电极设置在与外部和内部孔图案化电极相对的一个基板的一侧上。
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Patent Agency Ranking
6.发明申请公开(公告)号：US20190294020A1
公开(公告)日：2019-09-26
申请号：US16441231
申请日：2019-06-14
Applicant: LENSVECTOR INC.
Inventor： Tigran GALSTIAN , Karen ASATRYAN , Armen ZOHRABYAN , Marco THIBOUTOT , Vladimir PRESNIAKOV
IPC: G02F1/29 , G02F1/1337 , G02B3/08 , G02F1/1343
Abstract: A liquid crystal optical device is described configured to provide variable beam steering or refractive Fresnel lens control over light passing through an aperture of the device. The device includes at least one layer of liquid crystal material contained by substrates having alignment layers. An arrangement of electrodes is configured to provide a spatially varying electric field distribution within a number of zones within the liquid crystal layer. The liquid crystal optical device is structured to provide a spatial variation in optical phase delay with a transition at a boundary between zones which is an approximation of a sawtooth waveform across the boundaries of multiple zones. The arrangement of electrodes, device layered geometry and methods of driving the electrodes increase the effective aperture of the overall optical device.
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公开(公告)号：US20190086761A1
公开(公告)日：2019-03-21
申请号：US16195014
申请日：2018-11-19
Applicant: LensVector Inc.
Inventor： Tigran GALSTIAN , Karen ASATRYAN , Vladimir PRESNIAKOV , Aram BAGRAMYAN , Armen ZOHRABYAN , Simon CAREAU
IPC: G02F1/29
Abstract: A liquid crystal optical device providing refractive Fresnel lens type element control over light passing through an aperture is provided. The device includes a layer of liquid crystal material contained by flat substrates having flat alignment layers; and an arrangement of electrodes configured to provide a spatially varying voltage distribution within a number of lensing zones within said liquid crystal layer. The arrangement of electrodes includes ring-shaped electrodes defining boundaries between Fresnel lensing zones. The liquid crystal optical device is structured to provide a spatial variation in the optical phase delay with an abrupt transition at a boundary between lensing zones to increase the effective aperture of the optical device.
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公开(公告)号：US20190025657A1
公开(公告)日：2019-01-24
申请号：US15757471
申请日：2016-05-25
Applicant: LENSVECTOR INC.
Inventor： Vladimir PRESNIAKOV , Karen ASATRYAN , Armen ZOHRABYAN , Tigran GALSTIAN , Aram BAGRAMYAN , Simon CAREAU
IPC: G02F1/1343 , G02F1/1337 , G02F1/1335
Abstract: Liquid crystal light beam control devices and their manufacture are described. Beneficial aspects of beam broadening devices employed for controlled illumination and architectural purposes are presented including improving beam divergence control, improving beam broadening dynamic range control, beam divergence preconditioning, improving projected beam intensity uniformity and reducing color separation in the projected beam. Both beam control devices having in-plane and homeotropic ground state liquid crystal alignment are presented.
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公开(公告)号：US20220349554A1
公开(公告)日：2022-11-03
申请号：US17764242
申请日：2019-09-30
Applicant: LENSVECTOR INC.
Inventor： Tigran GALSTIAN , Armen ZOHRABYAN , Behzad KHODADAD , Karen ASATRYAN
Abstract: A variable angle beam control device is capable of maintaining the same color temperature of the light source regardless of the changes in the angle of the beam. The controllable light beam device has a light source with primary optics producing a low divergence light beam having an inverted angular distribution of the correlated color temperature (CCT), and a liquid crystal device with an electrically variable refractive index distribution arranged to receive said light beam and to provide a variable angle beam.
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10.发明申请公开(公告)号：US20170269453A1
公开(公告)日：2017-09-21
申请号：US15528537
申请日：2015-11-24
Applicant: LENSVECTOR INC.
Inventor： Tigran GALSTIAN , Karen ASATRYAN , Armen ZOHRABYAN , Marco THIBOUTOT , Vladimir PRESNIAKOV
IPC: G02F1/29
CPC classification number: G02F1/292 , G02B3/08 , G02F1/1337 , G02F1/133707 , G02F1/134309 , G02F1/29 , G02F2001/134381 , G02F2001/294
Abstract: A liquid crystal optical device is described configured to provide variable beam steering or refractive Fresnel lens control over light passing through an aperture of the device. The device includes at least one layer of liquid crystal material contained by substrates having alignment layers. An arrangement of electrodes is configured to provide a spatially varying electric field distribution within a number of zones within the liquid crystal layer. The liquid crystal optical device is structured to provide a spatial variation in optical phase delay with a transition at a boundary between zones which is an approximation of a sawtooth waveform across the boundaries of multiple zones. The arrangement of electrodes, device layered geometry and methods of driving the electrodes increase the effective aperture of the overall optical device.
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