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。

公开(公告)号：US20120188490A1

公开(公告)日：2012-07-26

申请号：US13360648

申请日：2012-01-27

申请人： Armen ZOHRABYAN ,  Karen ASATRYAN ,  Tigran GALSTIAN ,  Vladimir PRESNIAKOV ,  Amir TORK ,  Aram BAGRAMYAN

发明人： Armen ZOHRABYAN ,  Karen ASATRYAN ,  Tigran GALSTIAN ,  Vladimir PRESNIAKOV ,  Amir TORK ,  Aram BAGRAMYAN

IPC分类号： G02F1/1335 ,  G02F1/1337

CPC分类号： G02B3/0081 ,  G02B27/64 ,  G02F1/134309 ,  G02F1/1347 ,  G02F1/29 ,  G02F2001/294 ,  G02F2203/06

摘要： A liquid crystal optical device is provided. The optical device includes a liquid crystal cell controlling optical properties of light passing therethrough and has: a liquid crystal layer, a planar electrode located to one side of said liquid crystal layer; an electric field control structure located to the opposite side of the liquid crystal layer; and a wavefront adjustment structure configured to provide optical phase front adjustment. In some embodiments the wavefront adjustment structure is a conductive floating electrode. In other embodiments the wavefront adjustment structure is a weakly conductive structure having spatially variable sheet resistance. In other embodiments the wavefront adjustment structure a weakly conductive structure having spatially variable sheet resistance having a frequency dependent characteristic.

摘要翻译： 提供了一种液晶光学器件。 光学装置包括控制通过其的光的光学性质的液晶单元，具有：液晶层，位于所述液晶层一侧的平面电极; 位于液晶层的相对侧的电场控制结构; 以及配置为提供光学相位前调整的波前调整结构。 在一些实施例中，波前调整结构是导电浮动电极。 在其他实施例中，波前调整结构是具有空间可变薄片电阻的弱导电结构。 在其它实施例中，波前调节结构具有具有频率依赖特性的空间可变薄层电阻的弱导电结构。

公开(公告)号：US20120127380A1

公开(公告)日：2012-05-24

申请号：US13296604

申请日：2011-11-15

申请人： Tigran GALSTIAN ,  Karen ASATRYAN ,  Vladimir PRESNIAKOV ,  Armen ZOHRABYAN ,  Amir TORK ,  Aram BAGRAMYAN

发明人： Tigran GALSTIAN ,  Karen ASATRYAN ,  Vladimir PRESNIAKOV ,  Armen ZOHRABYAN ,  Amir TORK ,  Aram BAGRAMYAN

IPC分类号： G02B3/14 ,  G02F1/29

CPC分类号： G03B17/00 ,  G02B3/14 ,  G02F2001/291

摘要： A tunable optical imaging system uses a fixed lens and a tunable liquid crystal lens that is operated only outside of an operational range of high aberration. A voltage range applied to change the optical power of the liquid crystal lens is limited to a continuous tunable range of low aberration. The relative positioning between the lens and a corresponding photodetector, and the relative lens powers of a fixed lens and the tunable lens, may be selected to compensate for any optical power offsets resulting from the limitation of the voltage range of the tunable lens. The lens may be operated in either positive tunability or negative tunability mode.

摘要翻译： 可调谐光学成像系统使用仅在高像差的操作范围之外操作的固定透镜和可调谐液晶透镜。 施加以改变液晶透镜的光焦度的电压范围被限制在低像差的连续可调范围。 可以选择透镜和相应的光电检测器之间的相对定位以及固定透镜和可调透镜的相对透镜功率，以补偿由可调透镜的电压范围的限制导致的任何光功率偏移。 透镜可以以正的可调谐性或负的可调谐性模式进行操作。

公开(公告)号：US20120113318A1

公开(公告)日：2012-05-10

申请号：US13286600

申请日：2011-11-01

申请人： Tigran GALSTIAN ,  Armen ZOHRABYAN ,  Karen ASATRYAN ,  Amir TORK ,  Vladimir PRESNIAKOV ,  Aram BAGRAMYAN

发明人： Tigran GALSTIAN ,  Armen ZOHRABYAN ,  Karen ASATRYAN ,  Amir TORK ,  Vladimir PRESNIAKOV ,  Aram BAGRAMYAN

IPC分类号： H04N5/225 ,  B23P11/00

CPC分类号： H04N5/2254 ,  B29D11/00298 ,  G01M11/0257 ,  G02B13/0075 ,  G02B13/0085 ,  G02B27/0068 ,  H04N5/3572 ,  Y10T29/49764 ,  Y10T29/49826

摘要： Methods are provided for wafer scale manufacturing camera modules without adjustment components to compensate for assembly errors and optical errors incurred within manufacturing tolerances. Camera modules are assembled in wafer arrays from arrays of image sensors, arrays of lens structures and arrays of optical trim elements. At least one of the arrays is a wafer. Lens structures are configured to provide less optical power than necessary to focus an image at infinity on image sensors without trim elements. A test performed during the wafer scale assembly of camera modules, after at least the sensor array and the lens structure array assembled, determines optical errors by identifying optical distortions and aberrations quantified in terms of optical power, astigmatism, coma, optical axis shift and optical axis reorientation deficiencies. Corresponding trim elements are configured to counteract distortions and aberrations prior to singulating useful camera modules from the array.

摘要翻译： 提供了用于晶片尺寸制造相机模块的方法，其没有调节部件以补偿在制造公差内产生的组装误差和光学误差。 相机模块从图像传感器阵列，透镜结构阵列和光学装饰元件阵列组装在晶片阵列中。 至少一个阵列是晶片。 透镜结构被配置为提供比无图像在无穷远对图像传感器进行聚焦而不需要修整元件所需的光功率。 在至少传感器阵列和透镜结构阵列组装之后，相机模块的晶片刻度装配期间执行的测试通过识别光学功率，散光，彗差，光轴偏移和光学等方面量化的光学失真和像差来确定光学误差 轴重新定位不足。 相应的修剪元件被配置为在从阵列中分离有用的相机模块之前抵消失真和像差。

公开(公告)号：US20090213321A1

公开(公告)日：2009-08-27

申请号：US12393021

申请日：2009-02-25

申请人： Tigran GALSTIAN ,  Karen ASATRYAN ,  Vladimir PRESNIAKOV ,  Armen ZOHRABYAN ,  Amir TORK ,  Aram BAGRAMYAN

发明人： Tigran GALSTIAN ,  Karen ASATRYAN ,  Vladimir PRESNIAKOV ,  Armen ZOHRABYAN ,  Amir TORK ,  Aram BAGRAMYAN

IPC分类号： G02F1/13

CPC分类号： G03B17/00 ,  G02B3/14 ,  G02F2001/291

摘要： A tunable optical imaging system uses a fixed lens and a tunable liquid crystal lens that is operated only outside of an operational range of high aberration. A voltage range applied to change the optical power of the liquid crystal lens is limited to a continuous tunable range of low aberration. The relative positioning between the lens and a corresponding photodetector, and the relative lens powers of a fixed lens and the tunable lens, may be selected to compensate for any optical power offsets resulting from the limitation of the voltage range of the tunable lens. The lens may be operated in either positive tunability or negative tunability mode.

摘要翻译： 可调谐光学成像系统使用仅在高像差的操作范围之外操作的固定透镜和可调谐液晶透镜。 施加以改变液晶透镜的光焦度的电压范围被限制在低像差的连续可调范围。 可以选择透镜和相应的光电检测器之间的相对定位以及固定透镜和可调透镜的相对透镜功率，以补偿由可调透镜的电压范围的限制导致的任何光功率偏移。 透镜可以以正的可调谐性或负的可调谐性模式进行操作。

公开(公告)号：US20140036183A1

公开(公告)日：2014-02-06

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： G02F1/139

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：US20090316097A1

公开(公告)日：2009-12-24

申请号：US12487811

申请日：2009-06-19

申请人： Vladimir PRESNIAKOV ,  Tigran GALSTIAN ,  Karen ASATRYAN ,  Amir TORK ,  Aram BAGRAMYAN ,  Armen ZOHRABYAN

发明人： Vladimir PRESNIAKOV ,  Tigran GALSTIAN ,  Karen ASATRYAN ,  Amir TORK ,  Aram BAGRAMYAN ,  Armen ZOHRABYAN

IPC分类号： G02F1/1337 ,  G02F1/13

CPC分类号： G02F1/29 ,  G02F2001/294

摘要： A tunable-focusing liquid crystal lens (TLCL) cell has a liquid crystal layer arranged within a cell gap defined between substrates, a layer of optically transparent material arranged between the first substrate and the LC layer, and a liquid crystal alignment layer arranged between the optically transparent layer and the LC layer. The alignment layer is provided on a third optically transparent substrate having a non-planar shape for giving a non-planar profile to the LC layer, which substrate is obtained from a flexible sheet initially provided with the alignment layer and then formed into the non-planar shape. The lens further has a first optically transparent electrode provided on the second substrate, a second optically transparent electrode provided on either or both of first and third substrates. The electrodes are arranged to generate an electric field acting on the LC layer to change the focal distance of the LC cell. Methods for fabricating such TLCL cell are also provided

摘要翻译： 可调聚焦液晶透镜（TLCL）单元具有布置在基板之间的单元间隙内的液晶层，布置在第一基板和LC层之间的光学透明材料层和布置在第一基板和LC层之间的液晶取向层 光学透明层和LC层。 取向层设置在具有非平面形状的第三光学透明基板上，用于向LC层提供非平面轮廓，该基板从最初设置有取向层的柔性片形成，然后形成为非平面形状， 平面形状。 透镜还具有设置在第二基板上的第一光学透明电极，设置在第一和第三基板的一个或两个上的第二光学透明电极。 电极被布置成产生作用在LC层上的电场以改变LC单元的焦距。 还提供了制造这种TLCL电池的方法

公开(公告)号：US20100007844A1

公开(公告)日：2010-01-14

申请号：US12502737

申请日：2009-07-14

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 ,  G02F1/1337

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。