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1. 发明申请

US20140049682A1 IN-FLIGHT AUTO FOCUS METHOD AND SYSTEM FOR TUNABLE LIQUID CRYSTAL OPTICAL ELEMENT 有权
标题翻译：航空自动聚焦方法和系统，用于可控液晶光学元件
公开(公告)号：US20140049682A1
公开(公告)日：2014-02-20
申请号：US13822911
申请日：2011-10-14
申请人： Tigran Galstian , Karen Asatryan , Vladimir Presniakov , Marco Thiboutot , Armen Zohrabyan , Aram Bagramyan , Amir Tork , Ted Cooper , Behzad Khodadad , Gongjian Hu , Chong I Cheang , Jeffrey James Parker
发明人： Tigran Galstian , Karen Asatryan , Vladimir Presniakov , Marco Thiboutot , Armen Zohrabyan , Aram Bagramyan , Amir Tork , Ted Cooper , Behzad Khodadad , Gongjian Hu , Chong I Cheang , Jeffrey James Parker
IPC分类号： H04N5/232 , G02B7/36
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：提供了一种采用可调式液晶透镜的自动对焦系统，其在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。

2. 发明授权

US09405093B2 In-flight auto focus method and system for tunable liquid crystal optical element 有权
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.

3. 发明授权

US09030595B2 In-flight auto focus method and system for tunable liquid crystal optical element 有权
标题翻译：可调式液晶光学元件的飞行中自动对焦方法和系统
公开(公告)号：US09030595B2
公开(公告)日：2015-05-12
申请号：US13822911
申请日：2011-10-14
申请人： Tigran Galstian , Karen Asatryan , Vladimir Presniakov , Marco Thiboutot , Armen Zohrabyan , Aram Bagramyan , Amir Tork , Ted Cooper , Behzad Khodadad , Gongjian Hu , Chong I Cheang , Jeffrey James Parker
发明人： Tigran Galstian , Karen Asatryan , Vladimir Presniakov , Marco Thiboutot , Armen Zohrabyan , Aram Bagramyan , Amir Tork , Ted Cooper , Behzad Khodadad , Gongjian Hu , Chong I Cheang , Jeffrey James Parker
IPC分类号： H04N5/232 , H04N5/225 , G02F1/135 , G02B7/38 , G02F1/29 , G03B3/10 , G02B7/36 , G02F1/1347
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。

4. 发明授权

US06400885B1 Controllable optical attenuator 失效
标题翻译：可控光衰减器
公开(公告)号：US06400885B1
公开(公告)日：2002-06-04
申请号：US09641541
申请日：2000-08-18
申请人： Gongjian Hu , Peter Robrish
发明人： Gongjian Hu , Peter Robrish
IPC分类号： G02B600
CPC分类号： G02B6/3538 , B41J2002/14395 , G02B6/266 , G02B6/357 , G02B6/3582 , G02B6/3594 , G02B6/3596 , G02B26/004
摘要： A controllable optical attenuator comprising an optical waveguide which extends longitudinally along the optical attenuator. The optical waveguide has an exposed surface and a core that is positioned directly adjacent the exposed surface. The attenuator further comprises at least one elongated chamber which is formed transversely to the longitudinal extent of the optical waveguide and a liquid droplet which is disposed within the elongated chamber, the droplet being movable along the chamber from a position lateral of the optical waveguide exposed surface to a position in which contact is made between the liquid droplet and the optical waveguide exposed surface. When the liquid droplet is positioned so as to contact the exposed surface of the optical waveguide, a portion of the optical signal transmitted along the waveguide core is absorbed by the droplet so as to attenuate the transmitted signal.
摘要翻译：一种可控光衰减器，包括沿光衰减器纵向延伸的光波导。光波导具有暴露的表面和直接邻近暴露表面定位的芯。所述衰减器还包括至少一个细长室，其横向于所述光波导的纵向延伸部分形成，并且所述液滴设置在所述细长室内，所述液滴可沿所述腔室从所述光波导暴露表面的侧面位置移动到达液滴和光波导暴露表面之间接触的位置。当液滴定位成与光波导的暴露表面接触时，沿着波导芯传输的光信号的一部分被液滴吸收，以便衰减所传输的信号。

5. 发明授权

US06686984B1 Polarization control device 失效
标题翻译：极化控制装置
公开(公告)号：US06686984B1
公开(公告)日：2004-02-03
申请号：US09502362
申请日：2000-02-29
申请人： Charles Hoke , Gongjian Hu , Peter Robrish , Andreas Weber
发明人： Charles Hoke , Gongjian Hu , Peter Robrish , Andreas Weber
IPC分类号： G02F11337
CPC分类号： G02F1/1326 , G02F1/0136 , G02F1/134363 , G02F1/1393
摘要： A polarization control device, comprising: a liquid crystal device containing a liquid crystal material with an optical anisostropy with substantially homeotropically aligned molecules when in a neutral electrical field state; a plurality of electrodes for applying an electrical field to change an orientation of the molecules of the liquid crystal material from their alignment in the neutral electrical filed state; a circuit for applying a voltage to the electrodes; and an optical system for directing light through the liquid crystal material.
摘要翻译：一种偏振控制装置，包括：液晶装置，当处于中性电场状态时，所述液晶装置含有具有大致垂直排列的分子的具有光学不对称的液晶材料; 多个电极，用于施加电场以改变液晶材料的分子在中性电场状态下的取向; 用于向电极施加电压的电路; 以及用于引导光通过液晶材料的光学系统。

6. 发明授权

US06839169B2 Optical apparatus and method for selectively transmitting optical signals 失效
标题翻译：用于选择性地发送光信号的光学装置和方法
公开(公告)号：US06839169B2
公开(公告)日：2005-01-04
申请号：US10172840
申请日：2002-06-17
申请人： Gongjian Hu
发明人： Gongjian Hu
IPC分类号： G02F1/09 , G02F1/139 , G02F1/31 , G02B27/28 , G02F1/13
CPC分类号： G02F1/31 , G02F1/093 , G02F1/1395 , Y10S359/90
摘要： An optical apparatus and method for selectively transmitting optical signals utilizes an optical component having a controllable optical state to selectively manipulate the optical signals so that transmission of the optical signals through the optical apparatus is controlled. The optical apparatus is configured so that optical signals from a first port of the optical apparatus are transmitted to a second port of the optical apparatus regardless of the optical state of the optical component. The optical apparatus is further configured so that optical signals from the second port are not transmitted to the first port unless the optical component is switched to an active optical state.
摘要翻译：用于选择性地发送光信号的光学装置和方法利用具有可控光学状态的光学部件来选择性地操纵光信号，从而控制光信号通过光学装置的传输。光学装置被配置为使得来自光学装置的第一端口的光信号被发送到光学装置的第二端口，而与光学部件的光学状态无关。光学装置还被配置为使得来自第二端口的光信号不被传送到第一端口，除非光学部件被切换到有源光学状态。

7. 发明授权

US06647165B2 Total internal reflection optical switch utilizing a moving droplet 失效
公开(公告)号：US06647165B2
公开(公告)日：2003-11-11
申请号：US09871486
申请日：2001-05-31
申请人： Gongjian Hu , Peter Robrish
发明人： Gongjian Hu , Peter Robrish
IPC分类号： G02B626
CPC分类号： G02B6/3538 , G02B6/3544 , G02B6/357 , G02B6/3576 , G02B6/3596 , G02B26/004
摘要： An optical switch constructed from first and second waveguides. The first and second waveguides have ends disposed across a gap such that light traversing the first waveguide enters the second waveguide when the gap is filled with a liquid having a first index of refraction, whereas light traversing the first waveguide is reflected by the gap when the gap is filled with a material having a second index of refraction that is substantially different from the first index of refraction. The gap is part of a trench that contains a liquid droplet made from a droplet material having the first index of refraction. The droplet is located in the trench and is movable between the first and second positions in the trench, the droplet filling the gap in the first position. The gap is filled with a material having the second index of refraction when the droplet is in the second position. The droplet may be moved using an electric field generated by a plurality of electrodes arranged such that an electrical potential applied between a first pair of the electrodes creates an electric field in a region of the trench containing the first position. The droplet can also be moved by differentially heating two edges of the droplet so as to create a net force on the droplet in a direction parallel to the direction of the trench. The heating can be accomplished by illuminating one edge of the droplet with light of a wavelength that is absorbed by the droplet material.

8. 发明授权

US06656384B1 Production of filaments via phase separation and polymerization 失效
标题翻译：通过相分离和聚合生产长丝
公开(公告)号：US06656384B1
公开(公告)日：2003-12-02
申请号：US09640625
申请日：2000-08-17
申请人： Peter Palffy-Muhoray , Liang-Chy Chien , Gongjian Hu
发明人： Peter Palffy-Muhoray , Liang-Chy Chien , Gongjian Hu
IPC分类号： C09K1952
CPC分类号： C09K19/3001 , C09K19/12 , C09K19/3847
摘要： A polymerizable liquid crystalline monomer is described comprising a polymerizable first terminal group, a central portion, and a second terminal group, wherein the monomer is capable of filament formation. Filaments can form as a result of an isotropic to smectic phase transition and can subsequently be polymerized by photoinitiation, for example.
摘要翻译：描述了包含可聚合的第一末端基团，中心部分和第二末端基团的可聚合液晶单体，其中所述单体能够形成丝。作为各向同性至近晶相变的结果可以形成丝，并且可以随后通过光引发聚合。

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