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公开(公告)号：US20120242918A1
公开(公告)日：2012-09-27
申请号：US13428895
申请日：2012-03-23
IPC分类号： G02F1/1335
CPC分类号： G02F1/13718 , G02F1/19 , G02F2001/13478
摘要： A liquid crystal optical device that includes a first substrate layer that is substantially flat and a second substrate layer that is substantially flat and parallel to the first substrate layer. The liquid crystal optical device further includes a layer of cholesteric liquid crystal disposed between the first substrate layer and the second substrate layer, where the layer of cholesteric liquid crystal is arranged in domains, each domain having a helical axis, wherein the helical axes of the domains have a plurality of orientations relative to an orientation of the first and second substrate layers, and where a wavefront of a light wave having a wavelength within a range of wavelengths changes after reflecting from the layer of cholesteric liquid crystal.
摘要翻译： 一种液晶光学器件，其包括基本上平坦的第一衬底层和基本上平坦且平行于第一衬底层的第二衬底层。 液晶光学器件还包括设置在第一衬底层和第二衬底层之间的胆甾醇型液晶层，其中胆甾型液晶层布置在畴中，每个畴具有螺旋轴，其中， 畴具有相对于第一和第二衬底层的取向的多个取向，并且其中波长在波长范围内的波长的波前在从胆甾型液晶层反射之后改变。
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公开(公告)号：US08471999B2
公开(公告)日：2013-06-25
申请号：US12988790
申请日：2009-04-20
IPC分类号： G02F1/13
CPC分类号： G02F1/29 , G02F1/133305 , G02F1/133784 , G02F2001/291 , G02F2001/294
摘要： Disclosed herein is a liquid crystal lens with a variable focal length. The gradient profile of the liquid crystals molecules that causes the gradient profile of the refractive index is achieved by inducing non-uniformly distributed anchoring energy and an external electric or magnetic field applied to the liquid crystal layer. Unlike existing electrically controlled liquid crystal lens, the external electric or magnetic field has a uniform spatial distribution within the liquid crystal layer. The focal length of the liquid crystal lens is controlled via the non-uniformly distributed anchoring energy and by varying the uniformly distributed electric or magnetic field.
摘要翻译： 这里公开了具有可变焦距的液晶透镜。 导致折射率梯度分布的液晶分子的梯度分布通过引起非均匀分布的锚定能量和施加到液晶层的外部电场或磁场来实现。 与现有的电控液晶透镜不同，外部电场或磁场在液晶层内具有均匀的空间分布。 通过非均匀分布的锚定能量和通过改变均匀分布的电场或磁场来控制液晶透镜的焦距。
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公开(公告)号：US20110043717A1
公开(公告)日：2011-02-24
申请号：US12988790
申请日：2009-04-20
IPC分类号： G02F1/1337 , G02F1/133
CPC分类号： G02F1/29 , G02F1/133305 , G02F1/133784 , G02F2001/291 , G02F2001/294
摘要： Disclosed herein is a liquid crystal lens with a variable focal length. The gradient profile of the liquid crystals molecules that causes the gradient profile of the refractive index is achieved by inducing non-uniformly distributed anchoring energy and an external electric or magnetic field applied to the liquid crystal layer. Unlike existing electrically controlled liquid crystal lens, the external electric or magnetic field has a uniform spatial distribution within the liquid crystal layer. The focal length of the liquid crystal lens is controlled via the non-uniformly distributed anchoring energy and by varying the uniformly distributed electric or magnetic field.
摘要翻译： 这里公开了具有可变焦距的液晶透镜。 导致折射率梯度分布的液晶分子的梯度分布通过引起非均匀分布的锚定能量和施加到液晶层的外部电场或磁场来实现。 与现有的电控液晶透镜不同，外部电场或磁场在液晶层内具有均匀的空间分布。 通过非均匀分布的锚定能量和通过改变均匀分布的电场或磁场来控制液晶透镜的焦距。
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公开(公告)号：US20050219547A1
公开(公告)日：2005-10-06
申请号：US10515123
申请日：2003-05-19
CPC分类号： G01N21/45 , G01B11/0625
摘要： A method for simultaneous measuring a thickness of a liquid crystal layer and an average refractive index of the said liquid crystal in sealed liquid crystal cell is disclosed. The method is based on analysis of spectral positions of maxima and minima of interference oscillations, their magnitudes and their envelope in the spectrum of light mirrored by the liquid crystal cell at several different angles-of-incidence. The method is applicable to cells filled with different liquid crystals including cholesterics and smectics.
摘要翻译： 公开了一种同时测量液晶层中的液晶层的厚度和所述液晶的平均折射率的方法。 该方法基于在几个不同的入射角下由液晶单元镜像的光谱中的干涉振荡的最大值和最小值的频谱位置，它们的大小及其包络的分析。 该方法适用于填充有不同液晶的细胞，包括胆固醇和近晶质。
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公开(公告)号：US07277184B2
公开(公告)日：2007-10-02
申请号：US10515123
申请日：2003-05-19
IPC分类号： G01B9/02
CPC分类号： G01N21/45 , G01B11/0625
摘要： A method for simultaneous measuring a thickness of a liquid crystal layer and an average refractive index of the said liquid crystal in sealed liquid crystal cell is disclosed. The method is based on analysis of spectral positions of maxima and minima of interference oscillations, their magnitudes and their envelope in the spectrum of light mirrored by the liquid crystal cell at several different angles-of-incidence. The method is applicable to cells filled with different liquid crystals including cholesterics and smectics.
摘要翻译： 公开了一种同时测量液晶层中的液晶层的厚度和所述液晶的平均折射率的方法。 该方法基于在几个不同的入射角下由液晶单元镜像的光谱中的干涉振荡的最大值和最小值的频谱位置，它们的大小及其包络的分析。 该方法适用于填充有不同液晶的细胞，包括胆固醇和近晶质。
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