公开(公告)号：US20220349554A1

公开(公告)日：2022-11-03

申请号：US17764242

申请日：2019-09-30

Applicant: LENSVECTOR INC.

Inventor： Tigran GALSTIAN ,  Armen ZOHRABYAN ,  Behzad KHODADAD ,  Karen ASATRYAN

IPC: F21V9/40 ,  F21V14/00 ,  F21V14/06 ,  H05B45/20

Abstract: A variable angle beam control device is capable of maintaining the same color temperature of the light source regardless of the changes in the angle of the beam. The controllable light beam device has a light source with primary optics producing a low divergence light beam having an inverted angular distribution of the correlated color temperature (CCT), and a liquid crystal device with an electrically variable refractive index distribution arranged to receive said light beam and to provide a variable angle beam.

公开(公告)号：US11097651B2

公开(公告)日：2021-08-24

申请号：US16487888

申请日：2018-02-26

Applicant: LensVector Inc.

Inventor： Tigran Galstian

IPC: B60Q1/12 ,  F21S41/64 ,  B60Q1/14 ,  G02F1/29 ,  F21W102/19

Abstract: For vehicles having left and right headlights, a steering direction signal input indicative of a left or right steering direction is used to modulate a control signal of a liquid crystal beam broadening device to broaden horizontally the vehicle headlight beam when the steering direction signal input is indicative of a selected one of a left or a right steering direction and to maintain or reduce a horizontal spread of the vehicle headlight beam when said steering direction signal input is indicative of one of a left or a right steering direction opposite to the selected steering direction.

公开(公告)号：US11035552B2

公开(公告)日：2021-06-15

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 ,  G02F1/1334 ,  G02B5/02 ,  G02F1/29 ,  G02F1/13357 ,  G02F1/1347 ,  G02F1/133 ,  G02F1/1333 ,  G02F1/1343 ,  G02F1/137 ,  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：US10747084B2

公开(公告)日：2020-08-18

申请号：US16441231

申请日：2019-06-14

Applicant: LENSVECTOR INC.

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

IPC: G02F1/1343 ,  G02F1/1337 ,  G02F1/1339 ,  G02F1/29 ,  G02B3/08

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.

公开(公告)号：US10359686B2

公开(公告)日：2019-07-23

申请号：US15528537

申请日：2015-11-24

Applicant: LENSVECTOR INC.

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

IPC: G02F1/1343 ,  G02F1/1337 ,  G02F1/29 ,  G02B3/08

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.

公开(公告)号：US10234710B2

公开(公告)日：2019-03-19

申请号：US15308984

申请日：2015-05-04

Applicant: LensVector Inc.

Inventor： Tigran Galstian ,  Aram Bagramyan ,  Amir Tork ,  David Yoon ,  Sergei Yakovenko

IPC: G02F1/1341 ,  G02F1/1333 ,  G02F1/1337 ,  G02F1/1339 ,  G02F1/1343

Abstract: An electro-optic device having at least one liquid crystal cell for providing spatially variable control of light includes: a pair of opposed substrates sandwiching a liquid crystal layer therebetween; a pair of electrodes for applying an electric field therebetween, each electrode being deposited on a corresponding substrate; and a liquid crystal reservoir wall defining a lateral extent of the liquid crystal layer between the substrates. The reservoir wall includes: a first bottom barrier deposited on a bottom one of the pair of substrates; and a second curable top barrier deposited on the top substrate outside the first barrier. The first barrier and second uncured barrier are configured to merge on contact to retain liquid crystal material inside the reservoir wall prior to curing the second barrier. Also, a method of wafer level manufacturing and assembly of a liquid crystal optical device.

公开(公告)号：US09833312B2

公开(公告)日：2017-12-05

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 ,  G02F1/1343 ,  G02B13/00 ,  G02F1/29 ,  G02F1/1337 ,  G02B1/16

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.

公开(公告)号：US09798217B2

公开(公告)日：2017-10-24

申请号：US15348237

申请日：2016-11-10

Applicant: LensVector Inc.

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

IPC: 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.

公开(公告)号：US20170269453A1

公开(公告)日：2017-09-21

申请号：US15528537

申请日：2015-11-24

Applicant: LENSVECTOR INC.

Inventor： Tigran GALSTIAN ,  Karen ASATRYAN ,  Armen ZOHRABYAN ,  Marco THIBOUTOT ,  Vladimir PRESNIAKOV

IPC: G02F1/29

CPC classification number: G02F1/292 ,  G02B3/08 ,  G02F1/1337 ,  G02F1/133707 ,  G02F1/134309 ,  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.

公开(公告)号：US20170219909A1

公开(公告)日：2017-08-03

申请号：US15348237

申请日：2016-11-10

Applicant: LensVector Inc.

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

IPC: 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.