公开(公告)号：US10285803B2

公开(公告)日：2019-05-14

申请号：US14956145

申请日：2015-12-01

Applicant: LENSVECTOR INC.

Inventor： Tigran Galstian ,  Denis Brousseau

IPC: G02C7/00 ,  G02C7/02 ,  G02C7/04 ,  A61F2/16 ,  G02C7/08

Abstract: An ocular adaptive lens prosthesis apparatus is provided. In some implementations the apparatus includes a tunable liquid crystal lens encapsulated in the ocular prosthesis with control electronics and a power source. The tunable liquid crystal lens is driven in response to a convergence signal to provide accommodation. In some embodiments the tunable liquid crystal device corrects other visual shortcomings of the natural eye. The ocular prosthesis has a remote programmable tunable liquid crystal lens controller configured to recalibrate the tunable liquid crystal lens to compensate for dynamic adaptation of the eye over time. A coil is employed to transmit a convergence signal between a pair of ocular prostheses in a dual eye vision correction system.

公开(公告)号：US09989822B2

公开(公告)日：2018-06-05

申请号：US14504977

申请日：2014-10-02

Applicant: LENSVECTOR INC.

Inventor： Tigran Galstian

IPC: G02F1/1335 ,  G02F1/1347 ,  G02F1/1343 ,  G02F1/137 ,  G02F1/17 ,  G02B3/00 ,  G02B3/14 ,  G02B5/09 ,  G02F1/13 ,  G02F1/1337

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.

公开(公告)号：US09599852B1

公开(公告)日：2017-03-21

申请号：US14451732

申请日：2014-08-05

Applicant: LensVector Inc.

Inventor： Tigran Galstian

IPC: H01L33/52 ,  G02F1/1333 ,  G02F1/1337 ,  G02F1/1335 ,  G02F1/1339

CPC classification number: G02F1/29 ,  B29D11/00307 ,  G02F1/1333 ,  G02F1/133351 ,  G02F1/1339 ,  G02F2001/291 ,  G02F2202/28

Abstract: A method of manufacturing a liquid crystal optical device such as a lens, a beam steering device or an optical image stabilization device is described. The method includes edge bonding a thin substrate onto a carrier substrate to obtain a combined substrate; manipulating the combined substrate by the carrier substrate for wafer level fabricating at least one liquid crystal optical device on the central portion of the first thin substrate. Each liquid crystal optical device includes liquid crystal cell walls. To form the at least one liquid crystal optical device a second thin substrate is provided and bonded to the combined substrate. The cell walls support and interconnect the thin first substrate to the second thin substrate. The at least one liquid crystal optical device is singulated by dicing the combined substrate within the peripheral bonding zone.

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：US11927343B2

公开(公告)日：2024-03-12

申请号：US17764242

申请日：2020-09-30

Applicant: LENSVECTOR INC.

Inventor： Tigran Galstian ,  Armen Zohrabyan ,  Behzad Khodadad ,  Karen Asatryan

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

CPC classification number: F21V9/40 ,  F21V14/003 ,  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：US11042064B2

公开(公告)日：2021-06-22

申请号：US15320457

申请日：2015-06-25

Applicant: LENSVECTOR INC.

Inventor： Tigran Galstian ,  Aram Bagramyan ,  Amir Tork

IPC: G02F1/1335 ,  G02F1/1339 ,  G02F1/1341 ,  G02F1/1347 ,  G02F1/1333 ,  G02F1/1337 ,  G02F1/1343

Abstract: A method of wafer level manufacturing, separating and electrical connection of liquid crystal optical devices is disclosed. An electro-optic device having at least one liquid crystal cell for providing spatially variable control of light is also described. The electro-optic device includes: a pair of opposed substrates, each substrate having a lateral extent; a pair of electrodes for applying an electric field therebetween, each electrode having a pattern and being deposited on a corresponding substrate, each electrode having an electrical contact area extending to at least one side of the corresponding substrate; a pair of alignment layers sandwiching a liquid crystal layer therebetween, the alignment layers defining a predominant orientation direction for liquid crystal molecules of the liquid crystal layer; and a liquid crystal reservoir wall defining a lateral extent of the liquid crystal layer, the liquid crystal reservoir wall being spaced from at least one side of each substrate such that each electrode electrical contact area is exposed to air in an air gap between the substrates.

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.

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.