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.

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.

公开(公告)号：US20150301427A1

公开(公告)日：2015-10-22

申请号：US14441452

申请日：2013-11-12

Applicant: LENSVECTOR INC.

Inventor： Tigran GALSTIAN ,  Vladimir PRESNIAKOV ,  Karen ASATRYAN ,  Amir TORK ,  Armen ZOHRABYAN ,  Aram BAGRAMYAN ,  Simon CAREAU

IPC: G02F1/29 ,  G02F1/133 ,  G02F1/1333 ,  G02F1/1347 ,  G02F1/1343 ,  G02B27/64

CPC classification number: G02F1/29 ,  G02B27/646 ,  G02F1/13306 ,  G02F1/133345 ,  G02F1/134309 ,  G02F1/13471 ,  G02F2001/134354 ,  G02F2001/294 ,  G02F2201/128

Abstract: A spatially non-uniform electrode structure is proposed for controlling a spatially non-uniform electric field driving a tunable liquid crystal lens. 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: 提出了一种空间不均匀的电极结构，用于控制驱动可调谐液晶透镜的空间不均匀电场。 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。

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

IPC: G02F1/133 ,  G02B27/00 ,  G02B27/28

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.

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.

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。