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公开(公告)号：US09910246B2
公开(公告)日：2018-03-06
申请号：US15196421
申请日：2016-06-29
Applicant: LensVector Inc.
Inventor： Armen Zohrabyan , Tigran Galstian , Karen Asatryan , Vladimir Presniakov , Marco Thiboutot , Aram Bagramyan , Amir Tork , Jeffrey James Parker , Ted Cooper , Behzad Khodadad , Gongjian Hu , Chong I Cheang
IPC: H04N5/232 , G02B7/36 , G02B7/38 , G02F1/1347 , G02F1/29 , G03B3/10 , G02F1/1337 , G02F1/1343
CPC classification number: G02B7/36 , G02B7/38 , G02F1/133784 , G02F1/13439 , G02F1/1347 , G02F1/29 , G02F2001/294 , G03B3/10 , H04N5/23212
Abstract: An auto-focus system employing a tunable liquid crystal lens is provided that collects images at different optical power values as the liquid crystal molecules are excited between a ground state and a maximum optical power state tracking image focus scores. An image is acquired at a desired optical power value less than maximum optical power established with the liquid crystal molecules closer a fully excited state than the maximum optical power state having the same image focus score. This drive signal employed during image acquisition uses more power than was used to achieve the same optical power value during the auto-focus scan, while actively driving the liquid crystal molecules is fast. A pause due to image transfer/processing delays after acquisition is employed to allow slow relaxation of the liquid crystal molecules back to the ground state in preparation for a subsequent focus search.
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公开(公告)号：US09874774B2
公开(公告)日：2018-01-23
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
IPC: G02F1/13 , G02F1/1333 , G01R1/07 , G09G3/00
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.
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公开(公告)号：US09244297B2
公开(公告)日：2016-01-26
申请号：US14670763
申请日：2015-03-27
Applicant: LensVector Inc.
Inventor： Tigran Galstian , Vladimir Presniakov , Karen Asatryan , Amir Tork , Armen Zohrabyan , Aram Bagramyan
IPC: G02F1/1335 , G02F1/133 , C08J3/28 , G02F1/29 , G02F1/1337 , G02F1/1343
CPC classification number: G02F1/29 , C08J3/28 , G02F1/13306 , G02F1/1337 , G02F1/134309 , G02F2001/133749 , G02F2001/294 , G02F2203/24
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 drive signal source uses pulse-width modulation to set a frequency and an amplitude of the drive signal.
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公开(公告)号：US20130077001A1
公开(公告)日：2013-03-28
申请号：US13683253
申请日：2012-11-21
Applicant: LENSVECTOR INC.
Inventor： Tigran Galstian , Vladimir Presniakov , Karen Asatryan , Amir Tork , Armen Zohrabyan , Aram Bagramyan
IPC: G02F1/133
CPC classification number: G02F1/29 , C08J3/28 , G02F1/13306 , G02F1/1337 , G02F1/134309 , G02F2001/133749 , G02F2001/294 , G02F2203/24
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 drive signal source uses pulse-width modulation to set a frequency and an amplitude of the drive signal.
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公开(公告)号：US11703721B2
公开(公告)日：2023-07-18
申请号：US16151761
申请日：2018-10-04
Applicant: LensVector Inc.
Inventor： Vladimir Presniakov , Karen Asatryan , Armen Zohrabyan , Tigran Galstian , Aram Bagramyan , Simon Careau
IPC: G02F1/1343 , G02F1/1337 , G02F1/29 , G02F1/1347
CPC classification number: G02F1/134309 , G02F1/1337 , G02F1/13471 , G02F1/134363 , G02F1/29 , G02F1/133738 , G02F1/133742 , G02F1/134381 , 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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Patent Agency Ranking
公开(公告)号：US11221539B2
公开(公告)日：2022-01-11
申请号：US16334059
申请日：2017-09-22
Applicant: LensVector Inc.
Inventor： Tigran Galstian , Karen Asatryan , Armen Zohrabyan , Vladimir Presniakov
Abstract: A lighting device using a liquid crystal beam modulator produces good broadening of a light beam. The liquid crystal cell has a patterned electrode structure having a pattern of paired electrodes on a first one of a pair of cell substrates for providing a spatially modulated electric field extending into a liquid crystal material, and the cell is arranged with respect to a light source so that an incident beam will arrive through another of the pair of substrates and exit from the first one of the pair of substrates.
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公开(公告)号：US11156895B2
公开(公告)日：2021-10-26
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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18.发明授权Electro-optical devices using dynamic reconfiguration of effective electrode structures 有权使用有效电极结构的动态重新配置的电光装置公开(公告)号：US09500889B2
公开(公告)日：2016-11-22
申请号：US14995293
申请日：2016-01-14
Applicant: LensVector Inc.
Inventor： Tigran Galstian , Vladimir Presniakov , Karen Asatryan , Amir Tork , Armen Zohrabyan , Aram Bagramyan
IPC: G02F1/133 , C08J3/28 , G02F1/29 , G02F1/1337 , G02F1/1343
CPC classification number: G02F1/29 , C08J3/28 , G02F1/13306 , G02F1/1337 , G02F1/134309 , G02F2001/133749 , G02F2001/294 , G02F2203/24
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 drive signal source uses pulse-width modulation to set a frequency and an amplitude of the drive signal.
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。 驱动信号源使用脉冲宽度调制来设置驱动信号的频率和幅度。
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公开(公告)号：US09201285B2
公开(公告)日：2015-12-01
申请号：US14076301
申请日：2013-11-11
Applicant: LensVector Inc.
Inventor： Tigran Galstian , Vladimir Presniakov , Karen Asatryan , Amir Tork , Armen Zohrabyan , Aram Bagramyan , Simon Careau
CPC classification number: G02F1/29 , G02B27/646 , G02F1/13306 , G02F1/133345 , G02F1/134309 , G02F1/13471 , G02F2001/134354 , G02F2001/294 , G02F2201/128
Abstract: An electrode structure is proposed for controlling a spatially non-uniform electric field driving a tunable liquid crystal lens or beam steering device. The spatially non-uniform electrode structure enables the generation of a predetermined spatially non-uniform electric field profile where complex capacitive coupling between multiple different electrically floating neighboring electrode segments is employed for the generation of the electrical field of desired form by supplying an initial electric potential to a limited number of electrodes.
Abstract translation: 提出了一种用于控制驱动可调谐液晶透镜或光束转向装置的空间不均匀电场的电极结构。 空间不均匀的电极结构使得能够产生预定的空间不均匀电场分布，其中多个不同的电浮动相邻电极段之间的复电容耦合用于通过提供初始电位来产生所需形式的电场 到有限数量的电极。
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20.发明授权Electro-optical devices using dynamic reconfiguration of effective electrode structures 有权使用有效电极结构的动态重新配置的电光装置公开(公告)号：US08860901B2
公开(公告)日：2014-10-14
申请号：US13683253
申请日：2012-11-21
Applicant: LensVector Inc.
Inventor： Tigran Galstian , Vladimir Presniakov , Karen Asatryan , Amir Tork , Armen Zohrabyan , Aram Bagramyan
IPC: G02F1/1335 , C08J3/28 , G02F1/133 , G02F1/29
CPC classification number: G02F1/29 , C08J3/28 , G02F1/13306 , G02F1/1337 , G02F1/134309 , G02F2001/133749 , G02F2001/294 , G02F2203/24
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 drive signal source uses pulse-width modulation to set a frequency and an amplitude of the drive signal.
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。 驱动信号源使用脉冲宽度调制来设置驱动信号的频率和幅度。
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