公开(公告)号：US20200050076A1

公开(公告)日：2020-02-13

申请号：US16605399

申请日：2018-04-20

Applicant: LensVector Inc.

Inventor： Tigran Galstian ,  Vladimir Presniakov ,  Karen Asatryan ,  Armen Zohrabyan

IPC: G02F1/29 ,  G02B27/09 ,  G02F1/1343

Abstract: Liquid crystal light beam broadening devices and their manufacture are described. Beneficial aspects of beam broadening devices employed for controlled illumination and architectural purposes are presented including providing symmetric beam broadening, improving the beam intensity profile, beam divergence preconditioning and improving projected beam intensity uniformity. Both beam control devices having in-plane and homeotropic ground state liquid crystal alignment are presented.

公开(公告)号：US20190186712A1

公开(公告)日：2019-06-20

申请号：US16331231

申请日：2017-09-08

Applicant: LensVector Inc.

Inventor： Tigran Galstian ,  Karen Asatryan ,  Vladimir Presniakov ,  Armen Zohrabyan ,  Jacques GODIN

IPC: F21V14/00 ,  G02F1/137 ,  G02F1/1334 ,  G02F1/133 ,  G02F1/1333 ,  G02F1/1343

CPC classification number: F21V14/003 ,  G02B5/02 ,  G02F1/13318 ,  G02F1/133308 ,  G02F1/1334 ,  G02F1/13439 ,  G02F1/137 ,  G02F1/29 ,  G02F2001/13324 ,  G02F2001/13775 ,  G02F2201/56 ,  G02F2203/12 ,  G02F2203/24 ,  G08C23/04

Abstract: A variable light beam is provided from a light source. The light source can be an LED light source or other source. The light source includes basic collimation optics, such as reflector or Fresnel lens, an electrically controllable LC device, such as a polydisperse LC film, in front of the incident spot light beam. Preferably the polydisperse LC film includes transparent flat uniform electrode layers. The LC device can be autonomous of the light source. The proposed solution provides a dynamically controllable, preferably polarizer-free and pixel-free, beam shape light source module including a controllable light beam control module and a light source module providing the initial light beam in a scanner light source, a camera flash, an architectural, automobile or industrial lighting device.

公开(公告)号：US09229254B2

公开(公告)日：2016-01-05

申请号：US14501964

申请日：2014-09-30

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.

公开(公告)号：US20190310532A1

公开(公告)日：2019-10-10

申请号：US16334059

申请日：2017-09-22

Applicant: LensVector Inc.

Inventor： Tigran Galstian ,  Karen Asatryan ,  Armen Zohrabyan ,  Vladimir Presniakov

IPC: G02F1/29 ,  G02B27/28 ,  G02B27/09 ,  G03B21/28 ,  G03B21/14

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.

公开(公告)号：US10126607B2

公开(公告)日：2018-11-13

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: G02F1/29 ,  G02F1/1343 ,  G02F1/1337

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：US20150146137A1

公开(公告)日：2015-05-28

申请号：US14607801

申请日：2015-01-28

Applicant: LENSVECTOR INC.

Inventor： Armen Zohrabyan ,  Karen Asatryan ,  Tigran Galstian ,  Vladimir Presniakov ,  Amir Tork ,  Aram Bagramyan

IPC: G02B3/00 ,  G02B27/64 ,  G02F1/29

Abstract: A liquid crystal optical device is provided. The optical device includes a liquid crystal cell controlling optical properties of light passing therethrough and has: a liquid crystal layer, a planar electrode located to one side of said liquid crystal layer; an electric field control structure located to the opposite side of the liquid crystal layer; and a wavefront adjustment structure configured to provide optical phase front adjustment. In some embodiments the wavefront adjustment structure is a conductive floating electrode. In other embodiments the wavefront adjustment structure is a weakly conductive structure having spatially variable sheet resistance. In other embodiments the wavefront adjustment structure a weakly conductive structure having spatially variable sheet resistance having a frequency dependent characteristic.

Abstract translation: 提供了一种液晶光学器件。 光学装置包括控制通过其的光的光学性质的液晶单元，具有：液晶层，位于所述液晶层一侧的平面电极; 位于液晶层的相对侧的电场控制结构; 以及配置为提供光学相位前调整的波前调整结构。 在一些实施例中，波前调整结构是导电浮动电极。 在其他实施例中，波前调整结构是具有空间可变薄片电阻的弱导电结构。 在其它实施例中，波前调整结构具有具有频率依赖特性的空间可变薄层电阻的弱导电结构。

公开(公告)号：US08679274B2

公开(公告)日：2014-03-25

申请号：US13627454

申请日：2012-09-26

Applicant: LensVector Inc.

Inventor： Tigran Galstian ,  Vladimir Presniakov ,  Karen Asatryan ,  Amir Tork ,  Armen Zohrabyan ,  Aram Bagramyan

IPC: B32B33/00 ,  A63B39/00 ,  A63B41/00 ,  B29C65/00 ,  B32B37/00 ,  B32B38/04 ,  C08J5/00 ,  G02F1/1335 ,  G02F1/1333 ,  G02F1/1339

CPC classification number: H01J9/24 ,  G02F1/1341 ,  G02F1/29

Abstract: A wafer level method of manufacturing a liquid crystal optical device removes the need for a rigid barrier fillet while minimizing any risk of contamination of the liquid crystal. An uncured adhesive may be deposited on a bottom substrate and partially cured to form a liquid crystal barrier. After addition of the liquid crystal and a top substrate, the adhesive is fully cured to bond the substrate layers together. An uncured adhesive may be used together with the partially cured adhesive, and may be deposited separately or filled into an extracellular matrix surrounding a plurality of liquid crystal cells. The adhesive may be cured by a variety of means, including light that may be spatially modulated. One or both of the substrates may be deformed during assembly so as to create a structure with a lensing effect on light passing through the liquid crystal region.

Abstract translation: 制造液晶光学器件的晶片级方法消除了对刚性屏障圆角的需要，同时最小化液晶污染的任何风险。 未固化的粘合剂可以沉积在底部基底上并部分固化以形成液晶屏障。 在添加液晶和顶部基底之后，粘合剂被完全固化以将基底层粘合在一起。 未固化的粘合剂可以与部分固化的粘合剂一起使用，并且可以单独沉积或填充到围绕多个液晶单元的细胞外基质中。 粘合剂可以通过各种手段固化，包括可以进行空间调制的光。 一个或两个基板在组装期间可能变形，以便产生对通过液晶区域的光具有透镜效应的结构。

公开(公告)号：US20190033669A1

公开(公告)日：2019-01-31

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

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：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.

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.