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：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：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：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.

公开(公告)号：US20160106533A1

公开(公告)日：2016-04-21

申请号：US14924950

申请日：2015-10-28

Applicant: LENSVECTOR INC.

Inventor： Tigran GALSTIAN ,  Howard EARHART

IPC: A61F2/16

Abstract: A reprogrammable intraocular adaptive lens prosthesis apparatus is provided. The apparatus includes a tunable liquid crystal lens (TLCL) encapsulated in the intraocular prosthesis with control electronics and a power source or in the intraocular prosthesis with a control signal receiver while an external control electronics package transmits the control signal. The TLCL is driven in response to a stimulus signal to provide accommodation. The TLCL corrects other visual shortcomings of the natural eye. The intraocular prosthesis has a remote programmable TLCL controller configured to recalibrate the TLCL to compensate for dynamic adaptation of the eye over time.

Abstract translation: 提供了可再编程的眼内适应镜片假体装置。 该装置包括在外部控制电子装置封装传送控制信号的情况下，封装在具有控制电子装置的眼内假体的可调谐液晶透镜（TLCL）以及具有控制信号接收器的电源或眼内假体中。 响应于刺激信号驱动TLCL以提供住宿。 TLCL校正了自然眼睛的其他视觉缺陷。 眼内假体具有远程可编程TLCL控制器，其被配置为重新校准TLCL以补偿眼睛随时间的动态适应。

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.

公开(公告)号：US20150055035A1

公开(公告)日：2015-02-26

申请号：US14504977

申请日：2014-10-02

Applicant: LENSVECTOR INC.

Inventor： Tigran GALSTIAN

IPC: G02F1/1347 ,  G02B3/14 ,  G02F1/1337 ,  G02F1/13 ,  G02B5/09 ,  G02F1/1343 ,  G02B3/00 ,  G02F1/1335

CPC classification number: G02F1/13471 ,  G02B3/0006 ,  G02B3/14 ,  G02B5/09 ,  G02F1/1313 ,  G02F1/133512 ,  G02F1/1337 ,  G02F1/134309 ,  G02F1/13439 ,  G02F1/13475 ,  G02F1/13725 ,  G02F1/172

Abstract: An apparatus for controlling light transmission from an optical input to an optical output can function as a tunable iris or eclipse, or as a privacy window. The iris/eclipse can use a liquid crystal matrix with a dispersion of dichroic particles that absorb light in one orientation and transmit light in another, such that controlling the liquid crystal with an electric field allows control of the dichroic particles. Alternatively, a layer may be used with a light absorbing liquid or powder material that moves with a charged material in response to a variable electric field applied to the layer. Privacy windows use a plurality of liquid crystal microlenses that can be controlled with an electric field to allow an image of an optical input to be obtainable at an optical output when in a first state, or to render the image irretrievable when in a second state.

Abstract translation: 用于控制从光输入到光输出的光传输的装置可以用作可调谐的虹膜或日食，或者作为隐私窗口。 虹膜/日食可以使用具有吸收一种取向中的光的二色性粒子的分散体的液晶矩阵，并且在另一方向上透射光，使得用电场控制液晶可以控制二色性粒子。 或者，层可以与光吸收液体或粉末材料一起使用，其响应于施加到该层的可变电场而与带电材料一起移动。 隐私窗使用多个液晶微透镜，其可以用电场来控制，以允许在处于第一状态时在光输出处获得光输入的图像，或者当处于第二状态时使图像不可恢复。

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.

公开(公告)号：WO2021022380A1

公开(公告)日：2021-02-11

申请号：PCT/CA2020/051086

申请日：2020-08-07

Applicant: LENSVECTOR INC. ,  GALSTIAN, Tigran

Inventor： GALSTIAN, Tigran

IPC: F21V13/04 ,  F21V14/00 ,  F21V5/00 ,  F21V7/00

Abstract: An architectural lighting device for wall washing providing suitable beam modulation is described herein. The device combines a variable divergence beam source (a light source along with a beam stretching element) in combination with a specially designed side reflector that redirects a portion of a broadened beam back onto the wall so as to have wall illumination increase with beam divergence.