公开(公告)号：US08028473B2

公开(公告)日：2011-10-04

申请号：US13019992

申请日：2011-02-02

申请人： Tigran Galstian ,  Vladimir Presniakov ,  Karen Asatryan ,  Amir Tork ,  Armen Zohrabian ,  Aram Bagramian

发明人： Tigran Galstian ,  Vladimir Presniakov ,  Karen Asatryan ,  Amir Tork ,  Armen Zohrabian ,  Aram Bagramian

IPC分类号： G02F1/1335

CPC分类号： G02F1/29 ,  C08J3/28 ,  G02F1/13306 ,  G02F1/1337 ,  G02F1/134309 ,  G02F2001/133749 ,  G02F2001/294 ,  G02F2203/24

摘要： 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 frequency of a drive signal that generates an electric field in the device may be varied, and the frequency dependent material has different charge mobilities for the different frequencies. At a low charge mobility, the frequency dependent material has little effect on the existing electrode structures. However, at a high charge mobility, the frequency dependent material appears as an extension of the fixed electrodes, and may be used to change the effective electrode structure and, thereby, the spatial profile of the electric field. This, in turn, changes the optical properties of the liquid crystal, thus allowing the optical device to be frequency controllable.

公开(公告)号：US07667818B2

公开(公告)日：2010-02-23

申请号：US11535089

申请日：2006-09-26

申请人： Tigran Galstian ,  Vladimir Presniakov ,  Karen Asatryan ,  Amir Tork

发明人： Tigran Galstian ,  Vladimir Presniakov ,  Karen Asatryan ,  Amir Tork

IPC分类号： G02F1/13 ,  G02F1/1333 ,  C09K19/02

CPC分类号： G02F1/29 ,  G02F2001/13775 ,  G02F2001/294 ,  G02F2203/28

摘要： A variable focus liquid crystal lens includes a nematic liquid crystal/monomer mixture having a spatially inhomogenous polymer network structure, and an electrode for applying a substantially uniform voltage to the nematic liquid crystal/monomer mixture. The lens is created within a cell by applying a substantially uniform electric field to the nematic liquid crystal/monomer mixture within the cell, while simultaneously irradiating the nematic liquid crystal/monomer mixture using a laser beam having a shaped intensity distribution, so as to induce formation of a spatially inhomogenous polymer network structure within the cell.

摘要翻译： 可变焦点液晶透镜包括具有空间不均匀聚合物网络结构的向列型液晶/单体混合物和用于向向列型液晶/单体混合物施加基本均匀电压的电极。 通过对单元内的向列型液晶/单体混合物施加基本上均匀的电场，同时用具有成形强度分布的激光束同时照射向列型液晶/单体混合物，从而在透镜内产生透镜，从而诱导 在细胞内形成空间不均匀的聚合物网络结构。

公开(公告)号：US20100007807A1

公开(公告)日：2010-01-14

申请号：US12488887

申请日：2009-06-22

申请人： Tigran GALSTIAN ,  Karen ASATRIAN ,  Amir TORK ,  Vladimir PRESNIAKOV ,  Armen ZOHRABYAN ,  Aram BABRAMYAN

发明人： Tigran GALSTIAN ,  Karen ASATRIAN ,  Amir TORK ,  Vladimir PRESNIAKOV ,  Armen ZOHRABYAN ,  Aram BABRAMYAN

IPC分类号： G02F1/137 ,  G99Z99/00 ,  G02F1/13

CPC分类号： G02F1/13768 ,  G02F2001/294 ,  H01F5/003 ,  H01F7/20

摘要： An electromagnetic source has an electrode structure coupled to a substrate. The electrode structure has interspaced electrodes, at least one of which is spiral-shaped. At least one electrical contact interconnects the electrodes of the electrode structure. The electrode structure is responsive to an applied electrical current to generate a spatially non-uniform magnetic field. This field can act on a LC layer such that optical properties of the layer are controllable.

摘要翻译： 电磁源具有耦合到衬底的电极结构。 电极结构具有间隔电极，其中至少一个是螺旋形的。 至少一个电触头互连电极结构的电极。 电极结构响应所施加的电流以产生空间上不均匀的磁场。 该场可以作用在LC层上，使得该层的光学性质是可控的。

公开(公告)号：US20070052915A1

公开(公告)日：2007-03-08

申请号：US11535089

申请日：2006-09-26

申请人： Tigran GALSTIAN ,  Vladimir PRESNIAKOV ,  Karen ASATRYAN ,  Amir TORK

发明人： Tigran GALSTIAN ,  Vladimir PRESNIAKOV ,  Karen ASATRYAN ,  Amir TORK

IPC分类号： G02F1/13

CPC分类号： G02F1/29 ,  G02F2001/13775 ,  G02F2001/294 ,  G02F2203/28

摘要： A variable focus liquid crystal lens includes a nematic liquid crystal/monomer mixture having a spatially inhomogenous polymer network structure, and an electrode for applying a substantially uniform voltage to the nematic liquid crystal/monomer mixture. The lens is created within a cell by applying a substantially uniform electric field to the nematic liquid crystal/monomer mixture within the cell, while simultaneously irradiating the nematic liquid crystal/monomer mixture using a laser beam having a shaped intensity distribution, so as to induce formation of a spatially inhomogenous polymer network structure within the cell.

摘要翻译： 可变焦点液晶透镜包括具有空间不均匀聚合物网络结构的向列型液晶/单体混合物和用于向向列型液晶/单体混合物施加基本均匀电压的电极。 通过对单元内的向列型液晶/单体混合物施加基本上均匀的电场，同时用具有成形强度分布的激光束同时照射向列型液晶/单体混合物，从而在透镜内产生透镜，从而诱导 在细胞内形成空间不均匀的聚合物网络结构。

公开(公告)号：US07114860B2

公开(公告)日：2006-10-03

申请号：US10736756

申请日：2003-12-17

申请人： Armen Zohrabyan ,  Tigran Galstian ,  Dany Dumont ,  Amir Tork

发明人： Armen Zohrabyan ,  Tigran Galstian ,  Dany Dumont ,  Amir Tork

IPC分类号： G02B6/36

CPC分类号： G02B6/13 ,  G02B6/10 ,  G02B6/4201

摘要： In a method for coupling an optical waveguide to a light emitting diode (LED) within a resin case, an input end of the optical waveguide is mounted proximal to a surface formed in the resin case parallel to a light-emitting face of the LED. The optical waveguide and the resin case can be bonded by a light or thermally curable resin that is applied and subsequently solidified. The light or thermally curable resin may be a photopolymer sensitive to light emerging from the waveguide. An automated coupling system is provided to optimize the coupling conditions using the in-coupled light efficiency feedback and controller. Finally a method is described allowing the coupling efficiency to be controlled using external excitation forces or light intensity variations, using electro-optic, magneto-optic, thermo-optic, light polarization sensitive or nonlinear properties of the filler material used between the resin case and waveguide.

摘要翻译： 在将光波导耦合到树脂壳体内的发光二极管（LED）的方法中，光波导的输入端安装在与LED的发光面平行的形成在树脂壳体中的表面的近侧。 光波导和树脂壳体可以通过施加并随后固化的光或热固化树脂粘合。 光或热固化树脂可以是对从波导出射的光敏感的光聚合物。 提供了一种自动耦合系统，以使用耦合光效反馈和控制器来优化耦合条件。 最后，描述了一种方法，其允许使用外部激发力或光强度变化来控制耦合效率，其使用在树脂壳体和树脂壳体之间使用的填充材料的电光学，磁光学，热光学，光偏振敏感或非线性特性 波导。

公开(公告)号：US07006733B2

公开(公告)日：2006-02-28

申请号：US10760398

申请日：2004-01-21

申请人： Tigran Galstian ,  Armen Zohrabyan ,  Dany Dumont ,  Amir Tork ,  Rouslan Birabassov

发明人： Tigran Galstian ,  Armen Zohrabyan ,  Dany Dumont ,  Amir Tork ,  Rouslan Birabassov

IPC分类号： G02B6/34 ,  G02B6/14

CPC分类号： G02B6/02066 ,  G02B6/02061 ,  G02B6/02085 ,  G02B6/02195 ,  G02B6/266 ,  G02B6/2826 ,  G02B6/29334 ,  G02B6/29391 ,  G02B2006/12107 ,  G02F1/011 ,  G02F1/1326 ,  G02F2201/307 ,  G02F2203/055

摘要： A variable optical device for selectively controlling propagation of light within an optical waveguide. The optical device comprises: a relief modulation defining a grating disposed proximal the waveguide and having a respective grating index of refraction nG; a matrix surrounding at least the relief modulation, the matrix having an index of refraction nEO that is controllable, in response to a selected stimulus between a first value that is substantially equal to the grating index of refraction nG, and a second value that is different from nG; and at least one electrode for supplying the selected stimulus to the matrix-grating system.

摘要翻译： 一种用于选择性地控制光波导内的光的传播的可变光学装置。 光学装置包括：浮雕调制，其限定设置在波导附近的光栅，并具有相应的光栅折射率n N; 至少围绕所述释放调制的矩阵，所述矩阵具有可响应于基本上等于所述光栅折射率n的第一值之间的所选择的刺激的可折射的折射率 G和/或不同于第n个G的第二个值; 以及用于将所选择的刺激提供给矩阵 - 光栅系统的至少一个电极。

公开(公告)号：US06928199B2

公开(公告)日：2005-08-09

申请号：US10760290

申请日：2004-01-21

申请人： Tigran Galstian ,  Armen Zohrabyan ,  Dany Dumont ,  Amir Tork ,  Rouslan Birabassov

发明人： Tigran Galstian ,  Armen Zohrabyan ,  Dany Dumont ,  Amir Tork ,  Rouslan Birabassov

IPC分类号： G02B6/02 ,  G02B6/124 ,  G02B6/28 ,  G02B6/34 ,  G02F1/01 ,  G02F1/1333 ,  G02F1/035 ,  H04B10/12

CPC分类号： G02B6/278 ,  G02B6/02085 ,  G02B6/02195 ,  G02B6/124 ,  G02B6/2826 ,  G02B6/29317 ,  G02B6/29395 ,  G02F1/0115 ,  G02F1/1326 ,  G02F2201/307 ,  G02F2203/055 ,  H01S3/0057

摘要： The present invention provides a controllable double cladding guiding structure for tunable phase delay, dynamic chromatic dispersion and polarization mode dispersion compensation. The device includes an etched fiber, an electro-optic material with index of refraction changing with externally applied stimulus (electric, magnetic or thermal effect) and a fiber Bragg grating (uniform, apodized, linearly or non-linearly chirped).

摘要翻译： 本发明提供了一种用于可调相位延迟，动态色散和偏振模色散补偿的可控双包层引导结构。 该装置包括蚀刻光纤，具有随外部施加的刺激（电，磁或热效应）改变的折射率的电光材料和光纤布拉格光栅（均匀，变迹，线性或非线性啁啾）。

公开(公告)号：US09448456B2

公开(公告)日：2016-09-20

申请号：US14048297

申请日：2013-10-08

申请人： Karen Asatryan ,  Tigran Galstian ,  Aram Bagramyan ,  Vladimir Presniakov ,  Amir Tork ,  Armen Zohrabyan ,  Peter P. Clark

发明人： Karen Asatryan ,  Tigran Galstian ,  Aram Bagramyan ,  Vladimir Presniakov ,  Amir Tork ,  Armen Zohrabyan ,  Peter P. Clark

IPC分类号： G02F1/133 ,  G02F1/139 ,  G02F1/29 ,  G02F1/1337 ,  G02F1/1343 ,  G02F1/1347

CPC分类号： G02F1/139 ,  G02F1/133723 ,  G02F1/133784 ,  G02F1/1343 ,  G02F1/1347 ,  G02F1/1395 ,  G02F1/29 ,  G02F2001/133749 ,  G02F2001/291

摘要： A liquid crystal optical device has a layered structure with split liquid crystal layers having alignment surfaces that define in a liquid crystal material pre-tilt angles of opposite signs. Four liquid crystal layers can provide two directions of linear polarization. In the case of a lens, the device can be a gradient index lens, and the alignment surfaces can have a spatially uniform pre-tilt.

摘要翻译： 液晶光学器件具有层状结构，其具有分离的液晶层，其具有以液晶材料限定相反符号的预倾角的对准表面。 四个液晶层可以提供两个线性极化方向。 在透镜的情况下，该装置可以是梯度折射率透镜，并且对准表面可以具有空间上均匀的预倾斜。

公开(公告)号：US09405093B2

公开(公告)日：2016-08-02

申请号：US14680513

申请日：2015-04-07

申请人： 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

发明人： 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分类号： H04N5/232 ,  G02B7/36 ,  G02B7/38 ,  G02F1/1347 ,  G02F1/29 ,  G03B3/10 ,  G02F1/1337

CPC分类号： G02B7/36 ,  G02B7/38 ,  G02F1/133784 ,  G02F1/13439 ,  G02F1/1347 ,  G02F1/29 ,  G02F2001/294 ,  G03B3/10 ,  H04N5/23212

摘要： 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：US20150301307A1

公开(公告)日：2015-10-22

申请号：US14680513

申请日：2015-04-07

申请人： 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

发明人： 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分类号： G02B7/36 ,  G02F1/1347 ,  G02F1/29 ,  G02F1/1337

CPC分类号： G02B7/36 ,  G02B7/38 ,  G02F1/133784 ,  G02F1/13439 ,  G02F1/1347 ,  G02F1/29 ,  G02F2001/294 ,  G03B3/10 ,  H04N5/23212

摘要： 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.

摘要翻译： 提供一种采用可调式液晶透镜的自动对焦系统，当基态和最大光功率状态跟踪图像焦点得分之间激发液晶分子时，以不同的光功率值收集图像。 以比具有相同图像焦点得分的最大光功率状态更接近完全激发状态的液晶分子建立的小于最大光焦度的期望光功率值获取图像。 在自动对焦扫描期间采用的这种驱动信号比用于实现相同的光功率值的功率更多，同时主动驱动液晶分子是快速的。 采用采集后由于图像转移/处理延迟而产生的暂停，以允许液晶分子缓慢松弛回到基态，以备随后的聚焦搜索。