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公开(公告)号：EP2310905A4
公开(公告)日：2013-05-29
申请号：EP09756992
申请日：2009-06-05
Applicant: LENSVECTOR INC
Inventor： ASATRYAN KAREN , GALSTIAN TIGRAN , BAGRAMYAM ARAM , PRESNIAKOV VLADIMIR , TORK AMIR , ZOHRABYAN ARMEN , CLARK PETER P
IPC: G02F1/133 , G02F1/1343 , G02F1/137
CPC classification number: G02F1/139 , G02F1/133723 , G02F1/133784 , G02F1/1343 , G02F1/1347 , G02F1/1395 , G02F1/29 , G02F2001/133749 , G02F2001/291
Abstract: A liquid crystal optical device has a layered structure with split liquid crystal layers having alignment surfaces that define in a liquid crystal material pre-tilt angles of opposite signs. Four liquid crystal layers can provide two directions of linear polarization. In the case of a lens, the device can be a gradient index lens, and the alignment surfaces can have a spatially uniform pre-tilt.
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12.发明申请IN-FLIGHT AUTO FOCUS METHOD AND SYSTEM FOR TUNABLE LIQUID CRYSTAL OPTICAL ELEMENT 审中-公开用于可调谐液晶光学元件的飞行中自动聚焦方法和系统
公开(公告)号：WO2012048431A9
公开(公告)日：2012-06-07
申请号：PCT/CA2011050651
申请日：2011-10-14
Applicant: LENSVECTOR INC , ZOHRABYAN ARMEN , GALSTIAN TIGRAN , ASATRYAN KAREN , PRESNIAKOV VLADIMIR , THIBOUTOT MARCO , BAGRAMYAN ARAM , TORK AMIR , PARKER JEFFREY JAMES , COOPER TED , KHODADAD BEHZAD , HU GONGJIAN , CHEANG CHON I
Inventor： ZOHRABYAN ARMEN , GALSTIAN TIGRAN , ASATRYAN KAREN , PRESNIAKOV VLADIMIR , THIBOUTOT MARCO , BAGRAMYAN ARAM , TORK AMIR , PARKER JEFFREY JAMES , COOPER TED , KHODADAD BEHZAD , HU GONGJIAN , CHEANG CHON I
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.
Abstract translation: 提供了一种采用可调谐液晶透镜的自动对焦系统，其在液晶分子在基态和最大光焦度状态追踪图像聚焦分数之间被激励时收集具有不同光焦度值的图像。 以比具有相同图像聚焦分数的最大光焦度状态更接近完全激发状态的液晶分子建立的最大光学功率，以期望的光学功率值获取图像。 在图像获取期间使用的该驱动信号使用比在自动对焦扫描期间用于获得相同的光功率值更多的功率，同时主动驱动液晶分子的速度很快。 采集之后由于图像转移/处理延迟而暂停，以允许液晶分子缓慢放松回到基态以准备随后的聚焦搜索。
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公开(公告)号：WO2009146530A1
公开(公告)日：2009-12-10
申请号：PCT/CA2009000743
申请日：2009-06-05
Applicant: LENSVECTOR INC , ASATRYAN KAREN , GALSTIAN TIGRAN , BAGRAMYAM ARAM , PRESNIAKOV VLADIMIR , TORK AMIR , ZOHRABYAN ARMEN
Inventor： ASATRYAN KAREN , GALSTIAN TIGRAN , BAGRAMYAM ARAM , PRESNIAKOV VLADIMIR , TORK AMIR , ZOHRABYAN ARMEN
CPC classification number: G02F1/139 , G02F1/133723 , G02F1/133784 , G02F1/1343 , G02F1/1347 , G02F1/1395 , G02F1/29 , G02F2001/133749 , G02F2001/291
Abstract: A liquid crystal optical device has a layered structure with split liquid crystal layers having alignment surfaces that define in a liquid crystal material pre-tilt angles of opposite signs. Four liquid crystal layers can provide two directions of linear polarization. In the case of a lens, the device can be a gradient index lens, and the alignment surfaces can have a spatially uniform pre-tilt.
Abstract translation: 液晶光学器件具有层状结构，其具有分离的液晶层，其具有以液晶材料限定相反符号的预倾角的对准表面。 四个液晶层可以提供两个线性极化方向。 在透镜的情况下，该装置可以是梯度折射率透镜，并且对准表面可以具有空间上均匀的预倾角。
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14.发明公开METHODS AND APPARATUS FOR FOCUS IMPROVEMENT IN MULTIPLE LIQUID CRYSTAL CELL LENSES 有权用于在多个液晶单元中改进焦点的方法和装置
公开(公告)号：EP2972575A4
公开(公告)日：2016-12-07
申请号：EP14764478
申请日：2014-03-12
Applicant: LENSVECTOR INC
Inventor： CLARK PETER , GALSTIAN TIGRAN , ASATRYAN KAREN , PRESNIAKOV VLADIMIR , BAGRAMYAN ARAM , TORK AMIR , ZOHRABYAN ARMEN , CAREAU SIMON
CPC classification number: G02F1/29 , A61F2/16 , A61F2210/0076 , A61F2210/0085 , G02B3/12 , G02F1/1313 , G02F1/134309 , G02F1/13439 , G02F2001/294 , G02F2201/16 , G02F2203/06
Abstract: A liquid crystal optical device is provided including at least two LC cells. A first LC cell layer has a predominant director orientation imparting a transversally non-uniform phase delay to a first polarization of an unpolarized incident light field passing therethrough while incident light of a second polarization orthogonal to the first light polarization passes therethrough undergoing transversally uniform phase delay. The first LC cell is configured to project a center extraordinary ray onto an optical axis of the device at the image surface. A second LC cell layer has a predominant director oriented orthogonally to the other predominant director in a plane perpendicular to the optical axis. The second LC layer imparts a transversally non-uniform phase delay to the second polarization of the incident light passing therethrough, the second LC cell being configured to project a center ordinary ray onto the optical axis at the image surface.
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Patent Agency Ranking
公开(公告)号：EP2917771A4
公开(公告)日：2016-04-27
申请号：EP13852740
申请日：2013-11-12
Applicant: LENSVECTOR INC
Inventor： GALSTIAN TIGRAN , PRESNIAKOV VLADIMIR , ASATRYAN KAREN , TORK AMIR , ZOHRABYAN ARMEN , BAGRAMYAN ARAM , CAREAU SIMON
CPC classification number: G02F1/29 , G02B27/646 , G02F1/13306 , G02F1/133345 , G02F1/134309 , G02F1/13471 , G02F2001/134354 , G02F2001/294 , G02F2201/128
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公开(公告)号：EP2517068A4
公开(公告)日：2013-11-20
申请号：EP10838467
申请日：2010-12-23
Applicant: LENSVECTOR INC
Inventor： GALSTIAN TIGRAN , PRESNIAKOV VLADIMIR , ASATRYAN KAREN , ZOHRABYAN ARMEN
IPC: G02F1/133 , G02F1/1343 , G02F1/29
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.
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17.发明公开
公开(公告)号：EP3224673A4
公开(公告)日：2018-07-11
申请号：EP15863807
申请日：2015-11-24
Applicant: LENSVECTOR INC
Inventor： GALSTIAN TIGRAN , ASATRYAN KAREN , ZOHRABYAN ARMEN , THIBOUTOT MARCO , PRESNIAKOV VLADIMIR
CPC classification number: G02F1/292 , G02B3/08 , G02F1/1337 , 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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18.发明公开MULTIPLE CELL LIQUID CRYSTAL OPTICAL DEVICE WITH COUPLED ELECTRIC FIELD CONTROL 审中-公开耦合电气面板控制多光液晶装置
公开(公告)号：EP2702444A4
公开(公告)日：2015-09-30
申请号：EP11849389
申请日：2012-01-30
Applicant: LENSVECTOR INC
Inventor： ZOHRABYAN ARMEN , ASATRYAN KAREN , GALSTIAN TIGRAN , PRESNIAKOV VLADIMIR , TORK AMIR , BAGRAMYAN ARAM
IPC: G02F1/1343 , G02F1/1347 , G02F1/29
CPC classification number: G02B3/0081 , G02B27/64 , G02F1/134309 , G02F1/1347 , G02F1/29 , G02F2001/294 , G02F2203/06
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19.发明公开ELECTRO-OPTICAL DEVICES USING DYNAMIC RECONFIGURATION OF EFFECTIVE ELECTRODE STRUCTURES 有权通过有效电极结构的动态重新配置电光安排
公开(公告)号：EP2297747A4
公开(公告)日：2012-08-15
申请号：EP09766301
申请日：2009-06-21
Applicant: LENSVECTOR INC
Inventor： GALSTIAN TIGRAN , PRESNIAKOV VLADIMIR , ASATRYAN KAREN , TORK AMIR , ZOHRABYAN ARMEN , BAGRAMYAN ARAM
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 frequency of a drive signal that generates an electric field in the device may 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 may 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.
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