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1.发明授权公开(公告)号：US06621533B2
公开(公告)日：2003-09-16
申请号：US09975731
申请日：2001-10-11
申请人： Jason Kempton Slack , Marina Vladimirovna Khazova , Tamotsu Takatsuka , Keisuke Mitani , Kazuhiro Inoko , Graham John Woodgate , Masaharu Hara , Grant Bourhill , Emma Walton
发明人： Jason Kempton Slack , Marina Vladimirovna Khazova , Tamotsu Takatsuka , Keisuke Mitani , Kazuhiro Inoko , Graham John Woodgate , Masaharu Hara , Grant Bourhill , Emma Walton
IPC分类号： G02F11335
CPC分类号： H04N9/3167 , G02B5/3083 , G02B27/283 , G02B27/285
摘要： The present invention provides a polarization separation element comprising a first array of prisms having a wedge-shaped cross-section, and a second array of prisms also having a wedge-shaped cross section. One of the prism arrays is an array of birefringent prisms. The present invention also provides a polarization conversion system having a polarization separation element of the above type for directing light having a first polarization in a first direction and for directing light having a second polarization different from the first polarization in a second direction different from the first direction; and one or more polarization conversion elements for converting light having the first and second polarizations to light having a substantially common output polarization. The polarization conversion system of the invention is suitable for use in a projection display system.
摘要翻译： 本发明提供了一种偏振分离元件，其包括具有楔形横截面的第一棱镜阵列，以及还具有楔形横截面的第二棱镜阵列。 棱镜阵列中的一个是双折射棱镜的阵列。本发明还提供一种偏振转换系统，其具有上述类型的偏振分离元件，用于引导具有第一方向的第一偏振的光并且用于引导具有第二极化的光不同 从与第一方向不同的第二方向的第一极化; 以及用于将具有第一和第二偏振的光转换为具有基本上共同的输出偏振的光的一个或多个偏振转换元件。 本发明的偏振转换系统适用于投影显示系统。
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公开(公告)号：US06583938B1
公开(公告)日：2003-06-24
申请号：US09675793
申请日：2000-09-29
IPC分类号： G02B2710
CPC分类号： G02B27/148 , G02B27/1086 , G02F1/0311 , G02F1/133526 , G02F1/133553 , H04N9/3114
摘要： An optical device which is suitable for use in a projection display comprises a spatial light modulator, such as a liquid crystal device, with a microlens array disposed on its front surface. The microlenses are of convergent type, such as lenticules. The spatial light modulator is of the reflective type and comprises a plurality of rear reflectors, each of which has convergent optical power in at least one direction. The reflectors are arranged such that, for a given direction of illumination, each reflector forms an image of the aperture A of a microlens on the aperture B of another microlens or at a different position on the same microlens. When used in, for example, a projection display, light losses caused by vignetting are reduced.
摘要翻译： 适用于投影显示器的光学装置包括诸如液晶装置的空间光调制器，其上设置有微透镜阵列。 微透镜是会聚型的，例如微透镜。 空间光调制器是反射型的，并且包括多个后反射器，每个后反射器在至少一个方向上具有会聚光功率。 反射器被布置成使得对于给定的照明方向，每个反射器在另一个微透镜的孔B上或在同一微透镜上的不同位置处形成微透镜的孔A的图像。 当用于例如投影显示器时，由晕影引起的光损耗降低。
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公开(公告)号：US06483613B1
公开(公告)日：2002-11-19
申请号：US09762339
申请日：2001-04-30
IPC分类号： G02B532
CPC分类号： G02B5/1876 , G02B5/32 , G02B27/0018 , G02F1/133504 , G02F1/133526 , G02F1/133553 , G02F1/1336 , G02F2001/133616
摘要： A reflective liquid crystal display device (LCD) (40) includes: a substrate (60), a reflecting layer (61), a liquid crystal layer (62), an electrode layer (63), a color filter layer (64), an upper substrate (65), and a polarizer (66). The reflective liquid crystal display device further includes a holographic field lens (67). By providing the holographic field lens, the LCD can be used with a closely placed, offset light source (41), since the holographic field lens simultaneously concentrates light incident on the LCD and redirects it in a preferred direction. The holographic field lens can be provided within the structure of the LCD.
摘要翻译： 反射型液晶显示装置（40）包括：基板（60），反射层（61），液晶层（62），电极层（63），滤色器层（64） 上基板（65）和偏振器（66）。 反射型液晶显示装置还包括全息场透镜（67）。 通过提供全息场透镜，LCD可以与紧密放置的偏移光源（41）一起使用，因为全息场透镜同时集中入射在LCD上的光并将其重定向在优选的方向上。 全息场透镜可以在LCD的结构内提供。
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公开(公告)号：US09519153B2
公开(公告)日：2016-12-13
申请号：US13300293
申请日：2011-11-18
CPC分类号： G02B27/225 , G02B6/001 , G02B6/0033 , G02B6/0038 , G02B6/004 , G02B6/0045 , G02B6/0046 , G02B6/0048 , G02B6/005 , G02B6/0051 , G02B6/0055 , G02B6/0068 , G02B6/0073 , G02B27/0093 , G02B27/2242 , H04N13/312 , H04N13/368 , H04N13/398
摘要： Disclosed is an optical valve or light valve for providing large area collimated illumination from localized light sources, and system and method thereof for 2D, 3D, and/or autosteroscopic displays. An optical valve may include a stepped structure, in which the steps include separated extraction features which may be optically hidden to light propagating in a first direction. Light propagating in a second direction may be refracted, diffracted, or reflected by the features to provide illumination beams exiting from the top surface of the optical valve. Such controlled illumination may provide for efficient, multi-user autostereoscopic displays as well as improved 2D display functionality.
摘要翻译： 公开了一种用于从局部光源提供大面积准直照明的光阀或光阀，以及用于2D，3D和/或自动照相显示器的系统及其方法。 光阀可以包括阶梯式结构，其中步骤包括分离的提取特征，其可以对沿第一方向传播的光进行光学隐藏。 沿第二方向传播的光可以由特征折射，衍射或反射，以提供从光阀的顶表面离开的照明光束。 这种受控照明可以提供有效的多用户自动立体显示器以及改进的2D显示功能。
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公开(公告)号：US08159739B2
公开(公告)日：2012-04-17
申请号：US12128873
申请日：2008-05-29
CPC分类号： G02B27/2214 , H04N13/305 , H04N13/31 , H04N13/359
摘要： A display apparatus comprises a spatial light modulator and optical elements in series therewith. The optical elements provide a first parallax element being a parallax barrier capable of directing light output from the display apparatus into a first plurality of viewing windows, and a second parallax element capable of directing light output from the display apparatus into a second plurality of viewing windows. In a first mode, the first and second parallax elements have substantially no directional effect on the light output from the display apparatus. In a second mode, the first parallax element directs light output from the display apparatus into the first plurality of viewing windows and the second optical element has substantially no directional effect. In a third mode, the second optical element directs light output from the display apparatus into the second plurality of viewing windows and the first parallax element has substantially no directional effect.
摘要翻译： 显示装置包括空间光调制器和与其串联的光学元件。 光学元件提供第一视差元件，其是能够将从显示设备输出的光引导到第一多个观看窗口中的视差屏障，以及第二视差元件，其能够将来自显示设备的光输出引导到第二多个观看窗口 。 在第一模式中，第一视差元件和第二视差元件对从显示设备输出的光线基本上没有方向作用。 在第二模式中，第一视差元件将从显示装置输出的光引导到第一多个观看窗口中，并且第二光学元件基本上没有方向效果。 在第三模式中，第二光学元件将从显示装置输出的光引导到第二多个观看窗口中，并且第一视差元件基本上没有方向效果。
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公开(公告)号：US08031276B2
公开(公告)日：2011-10-04
申请号：US12441480
申请日：2007-11-21
IPC分类号： G02F1/1335
CPC分类号： G02B5/0278 , G02B5/0215 , G02B5/0294 , G02B5/3016 , G02B27/2214
摘要： Manufacture of a birefringent liquid crystal cell is performed as follows. A layer of isotropic material having an outer surface which is shaped with a surface relief structure and is provided with a liquid crystal alignment property is formed. A flexible sheet having an outer surface provided with a liquid crystal alignment property is formed. A curable birefringent liquid crystal material is applied to one or both of the layer of isotropic material and the flexible sheet. The flexible sheet is applied over the layer of isotropic material with the outer surfaces of the layer of isotropic material and the flexible sheet facing one another with the liquid crystal material therebetween, thereby to form a liquid crystal cell. The liquid crystal material is cured and the flexible sheet is removed from the liquid crystal cell.
摘要翻译： 双折射液晶盒的制造如下进行。 形成具有外表面的各向同性材料层，其形状为具有表面起伏结构并且具有液晶取向性质。 形成具有液晶取向性的外表面的柔性片。 将可固化的双折射液晶材料施加到各向同性材料层和柔性片中的一个或两个上。 将柔性片材施加在各向同性材料层上，各向同性材料层的外表面和柔性片材之间彼此面对，从而形成液晶单元。 液晶材料被固化，并且从液晶单元去除柔性片。
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公开(公告)号：US07471352B2
公开(公告)日：2008-12-30
申请号：US10563117
申请日：2004-07-09
IPC分类号： G02F1/1335
CPC分类号： G02B27/2214 , G02B27/225 , G02B27/26 , G02F1/133371 , G02F1/29 , G02F2203/28 , H04N13/305
摘要： A birefringent lens structure comprises a birefringent lens array capable of directing light of a given polarisation into a directional distribution, the birefringent lens comprising a solid birefringent material and an isotropic material having an interface having a refractive structure. A switchable liquid crystal layer capable of rotating the polarisation of light passing therethrough is arranged adjacent the first birefringent material. The interface between the birefringent material and the liquid crystal layer has an alignment microstructure providing alignment of the birefringent material and the liquid crystal layer. A pair of electrodes for applying an electric field to switch the liquid crystal are arranged with both the lens array and the switchable liquid crystal layer therebetween and a conductive material is incorporated in the lens array to reduce the voltage drop across the lens array. To reduce reflection, the interface between the birefringent material and the isotropic material has an interface having alignment microstructure providing alignment of the birefringent material, and the refractive index of the isotropic material is substantially equal to the extraordinary refractive index of the birefringent material.
摘要翻译： 双折射透镜结构包括能够将给定偏振光定向到方向分布的双折射透镜阵列，双折射透镜包括固体双折射材料和具有折射结构的界面的各向同性材料。 能够使通过其的光的偏振旋转的可切换液晶层被布置成与第一双折射材料相邻。 双折射材料与液晶层之间的界面具有提供双折射材料与液晶层对准的取向微结构。 用于施加电场以切换液晶的一对电极与透镜阵列和可切换液晶层之间布置，并且在透镜阵列中引入导电材料以减少透镜阵列上的电压降。 为了减少反射，双折射材料和各向同性材料之间的界面具有具有提供双折射材料对准的对准微结构的界面，并且各向同性材料的折射率基本上等于双折射材料的非常折射率。
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公开(公告)号：US07426068B2
公开(公告)日：2008-09-16
申请号：US11327652
申请日：2006-01-09
CPC分类号： G02B27/2214 , H04N13/305 , H04N13/31 , H04N13/359
摘要： A display apparatus comprises a spatial light modulator and optical elements in series therewith. The optical elements provide a first parallax element being a parallax barrier capable of directing light output from the display apparatus into a first plurality of viewing windows, and a second parallax element capable of directing light output from the display apparatus into a second plurality of viewing windows. In a first mode, the first and second parallax elements have substantially no directional effect on the light output from the display apparatus. In a second mode, the first parallax element directs light output from the display apparatus into the first plurality of viewing windows and the second optical element has substantially no directional effect. In a third mode, the second optical element directs light output from the display apparatus into the second plurality of viewing windows and the first parallax element has substantially no directional effect.
摘要翻译： 显示装置包括空间光调制器和与其串联的光学元件。 光学元件提供第一视差元件，其是能够将从显示设备输出的光引导到第一多个观看窗口中的视差屏障，以及第二视差元件，其能够将来自显示设备的光输出引导到第二多个观看窗口 。 在第一模式中，第一视差元件和第二视差元件对从显示设备输出的光线基本上没有方向作用。 在第二模式中，第一视差元件将从显示装置输出的光引导到第一多个观看窗口中，并且第二光学元件基本上没有方向效果。 在第三模式中，第二光学元件将从显示装置输出的光引导到第二多个观看窗口中，并且第一视差元件基本上没有方向效果。
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公开(公告)号：US06973241B2
公开(公告)日：2005-12-06
申请号：US10601004
申请日：2003-06-19
CPC分类号： G02B6/1228 , H01S5/1014 , H01S5/1064 , H01S5/50
摘要： A semiconductor optical device comprises an active waveguide having a tapered portion, and a passive waveguide extending beyond the end of the active waveguide and optically coupled to the tapered portion of the active waveguide. The passive waveguide beyond the end of the active waveguide supports an optical mode of larger size than the optical mode supported by the active waveguide. The tapered portion of the active waveguide is truncated and the separation between the active waveguide and the passive waveguide is greater than in previously known devices in order to minimize or at least reduce the truncation loss at the truncation.
摘要翻译： 半导体光学器件包括具有锥形部分的有源波导和延伸超过有源波导的端部并且光耦合到有源波导的锥形部分的无源波导。 有源波导的端部之外的无源波导支持比由有源波导支持的光学模式更大尺寸的光学模式。 有源波导的锥形部分被截断，并且有源波导和无源波导之间的间隔大于先前已知的器件，以便最小化或至少减少截断时的截断损耗。
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公开(公告)号：US06595648B1
公开(公告)日：2003-07-22
申请号：US09701397
申请日：2001-03-30
IPC分类号： G03B2114
CPC分类号： H04N9/3108 , G02F1/133536 , G02F1/133553 , G02F1/1336
摘要： A projection display comprising: a transmissive spatial light modulator (10); an illuminator (1, 20, 21, 30) for illuminating the modulator from the front thereof; and a hologram (32) disposed at the rear of the modulator for imaging and reflecting back through the modulator light from the illuminator received through the modulator.
摘要翻译： 一种投影显示器，包括：透射空间光调制器（10）; 用于从其前面照亮调制器的照明器（1,20,21,30） 以及设置在调制器后部的全息图（32），用于对来自通过调制器接收的照明器的调制器光进行成像和反射。
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