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.

公开(公告)号：US09612504B2

公开(公告)日：2017-04-04

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 ,  G02B27/64 ,  G02F1/133 ,  G02F1/1333 ,  G02F1/1343 ,  G02F1/1347

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.

公开(公告)号：US20170075163A1

公开(公告)日：2017-03-16

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

CPC classification number: G02F1/133377 ,  G02F1/1333 ,  G02F1/133351 ,  G02F1/1337 ,  G02F1/13394 ,  G02F1/1341 ,  G02F1/134309 ,  G02F1/13439 ,  G02F2001/13415

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.

Abstract translation: 具有至少一个用于提供空间可变光控制的液晶单元的电光装置包括：在其间夹着液晶层的一对相对基板; 用于在其间施加电场的一对电极，每个电极沉积在相应的衬底上; 以及限定液晶层在基板之间的横向范围的液晶储存器壁。 储存器壁包括：沉积在一对基板的底部上的第一底部阻挡层; 以及沉积在第一屏障外部的顶部基板上的第二可固化顶部阻挡层。 第一阻挡层和第二未固化屏障构造成在接触之后合并，以在固化第二屏障之前将液晶材料保持在储存器壁内。 另外，液晶光学器件的晶片级制造和组装的方法。

公开(公告)号：US20170003539A1

公开(公告)日：2017-01-05

申请号：US15209101

申请日：2016-07-13

Applicant: LensVector Inc.

Inventor： Michael J. NYSTROM ,  Viktor Konovalov ,  Rubin Ma ,  Amir Tork ,  Aram Bagramyan ,  Vladimir Presniakov

IPC: G02F1/1343 ,  G02F1/1333

CPC classification number: G02F1/13439 ,  G02F1/133351 ,  G02F1/134309 ,  G02F1/1345 ,  G02F1/1347 ,  G02F2001/133302 ,  G02F2001/294 ,  G02F2201/42 ,  G02F2202/28

Abstract: A tunable liquid crystal optical device defining an optical aperture and having a layered structure. The device includes a film electrode formed on a surface of a first substrate and covered by a second substrate, and a contact structure filling a volume within the layered structure and contacting the film electrode. The contact structure is located outside of the optical aperture and provides an electrical connection surface much larger than a thickness of the film electrode, such that reliable electrical connections may be made to the electrode, particularly in the context of wafer scale manufacturing of such a device.

Abstract translation: 一种限定光学孔径并具有层状结构的可调谐液晶光学器件。 该器件包括形成在第一衬底的表面上并被第二衬底覆盖的膜电极，以及填充层状结构内的体积并使膜电极接触的接触结构。 接触结构位于光学孔的外侧，并且提供比膜电极的厚度大得多的电连接表面，使得可以对电极进行可靠的电连接，特别是在这种器件的晶片尺寸制造的上下文中 。

公开(公告)号：US20160377830A1

公开(公告)日：2016-12-29

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: G02B7/36 ,  H04N5/232 ,  G02F1/1337 ,  G03B3/10 ,  G02F1/29 ,  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.