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公开(公告)号：US5365354A
公开(公告)日：1994-11-15
申请号：US848703
申请日：1992-03-09
申请人： Tomasz P. Jannson , David G. Pelka , Tin M. Aye
发明人： Tomasz P. Jannson , David G. Pelka , Tin M. Aye
CPC分类号： G02B5/0252 , G02B5/32
摘要： A diffuser based on a phase volume holographic medium is recorded non-holographically with speckle which define non-discontinuous and smoothly varying change in the refractive index of the medium. The diffuser scatters light traveling from an entrance surface to an exit surfaces and reflection from the diffuser is substantially limited to Fresnel reflection from the entrance and exit surfaces and light exiting the exit surface is substantially non-specular.
摘要翻译： 基于相位体积全息介质的扩散器非全息地记录着斑点，其限定介质的折射率的非间断且平滑变化的变化。 扩散器将从入射表面行进的光散射到出射表面，并且来自漫射器的反射基本上限于从入射和出射表面的菲涅尔反射，并且离开出射表面的光基本上是非镜面的。
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公开(公告)号：US06595644B2
公开(公告)日：2003-07-22
申请号：US09924141
申请日：2001-08-07
IPC分类号： G03B2100
CPC分类号： G03B21/56
摘要： A dynamic time multiplexed holographic system including a holographic screen and a projector that projects successive perspective images onto the holographic screen. The projector includes a rotating polygon that provides successive image slices to the holographic screen and a spatial light modulator that provides successive image slices to the rotating polygon. The holographic screen refracts the successive perspective images perpendicular to the holographic screen.
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公开(公告)号：US5293272A
公开(公告)日：1994-03-08
申请号：US934793
申请日：1992-08-24
CPC分类号： G02B5/32 , G01B9/021 , G02B6/29358 , G02B6/29395 , Y10S359/90
摘要： A high finesse holographic Fabry-Perot etalon and method of making a high finesse holographic Fabry-Perot etalon is disclosed. Particularly, a holographic Fabry-Perot etalon which achieves high finesse despite non-flat interfaces between the etalon media is presented. In a preferred method of fabricating a high finesse Fabry-Perot etalon, single step recording of both holograms simultaneously, with the spacer and substrates in place, is employed which preserves full phase synchronization between the holograms. In spite of imperfections or irregularities of the interface surfaces of the substrates or spacers, the holographic fringes in the holograms remain flat even for slightly different refractive indices between the various media. The position and flatness of the fringes remains similar to perfect Fabry-Perot etalon structure.
摘要翻译： 公开了一种高精巧的全息法布里 - 珀罗标准具和制备高精度全息法布里 - 珀罗标准具的方法。 特别是，尽管标准培养基之间采用非平坦的界面，但是还提供了全息法布里 - 珀罗标准具，可实现高精细度。 在制造高精度法布里 - 珀罗标准具的优选方法中，采用同时将间隔物和衬底同时进行两步全息记录的单步记录，其保持了全息图之间的全相位同步。 尽管衬底或间隔物的界面的缺陷或不规则性，尽管各种介质之间的折射率略有不同，全息图中的全息条仍保持平坦。 条纹的位置和平坦度仍然与完美的法布里 - 珀罗标准具结构相似。
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4.发明授权
公开(公告)号：US5631754A
公开(公告)日：1997-05-20
申请号：US546026
申请日：1995-10-20
申请人： Tomasz P. Jannson , Tin M. Aye , Jeremy Lerner
发明人： Tomasz P. Jannson , Tin M. Aye , Jeremy Lerner
IPC分类号： G02F1/13 , G02B5/32 , G02F1/1333 , G02F1/1335 , G03H1/02 , G02F1/1337
CPC分类号： G02F1/133504 , G02B5/32 , G02F1/133371 , G02F2001/133565 , G02F2201/305 , G03H1/0244
摘要： Systems and methods for shaping light from a liquid crystal display are described. A holographic high contrast viewing screen embedded in a liquid crystal display includes a first substrate; a first electrode connected to said first substrate; a light shaping holographic surface relief diffuser connected to said first electrode, said light shaping holographic surface relief diffuser having a first orientation and a first refractive index; a liquid crystal adjacent said light shaping holographic surface relief diffuser, the liquid crystal having a second refractive index that is substantially equal to the first refractive index, in the absence of a driving voltage applied to the first electrode and the second electrode; an alignment layer adjacent said liquid crystal, said alignment layer having a second orientation that is substantially orthogonal to said first orientation; a second electrode connected to said alignment layer; and a second substrate connected to said second electrode. The second refractive index varies as a function of the driving voltage, which is applied between the first electrode and the second electrode. The systems and methods provide advantages in that the field of view, including the horizontal and vertical extent, can be determined, in advance by the manufacturer.
摘要翻译： 描述了用于对来自液晶显示器的光进行成形的系统和方法。 嵌入在液晶显示器中的全息高对比度观察屏幕包括第一基板; 连接到所述第一衬底的第一电极; 连接到所述第一电极的光成形全息表面释放漫射器，所述光成形全息表面释放扩散器具有第一取向和第一折射率; 在没有施加到第一电极和第二电极的驱动电压的情况下，与所述光成形全息表面浮雕扩散器相邻的液晶，具有基本上等于第一折射率的第二折射率的液晶; 邻近所述液晶的取向层，所述取向层具有基本上与所述第一取向正交的第二取向; 连接到所述对准层的第二电极; 以及连接到所述第二电极的第二衬底。 第二折射率随施加在第一电极和第二电极之间的驱动电压的函数而变化。 这些系统和方法提供了优点，其中包括水平和垂直范围的视野可以由制造商预先确定。
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公开(公告)号：US5886675A
公开(公告)日：1999-03-23
申请号：US498423
申请日：1995-07-05
CPC分类号： G09G3/003 , G02B27/225 , G03H1/26 , G09G3/002 , G03H1/0486
摘要： An autostereoscopic display system including: I) image signal electronics; II) a first projector including: A) a first light source 33; B) a first spatial light modulator 35 optically connected to said first light source and electrically connected to said image signal electronics; and C) a first image delivery system optically connected to said first spatial light modulator; III) a second projector connected to said first projector, said second projector including: A) a second light source 34; B) a second spatial light modulator 36 optically connected to said second light source and electrically connected to said image signal electronics; and C) a second image delivery system optically connected to said second spatial light modulator; IV) a fan-out multiplexer 39 optically connected to both said first image delivery system and said second image delivery system, said fan-out multiplexer being characterized by a viewing zone period and a viewing region period; and V) a binary head tracker 40 electrically connected to said image signal electronics, said binary head tracker including a camera 42 and a circuit board. The system provides the capability for real-time autostereoscopic display together with an impressive look-around feature.
摘要翻译： 一种自动立体显示系统，包括：I）图像信号电子; II）第一投影仪，包括：A）第一光源33; B）第一空间光调制器35，其光学连接到所述第一光源并电连接到所述图像信号电子器件; 和C）与所述第一空间光调制器光学连接的第一图像传送系统; III）连接到所述第一投影仪的第二投影仪，所述第二投影仪包括：A）第二光源34; B）第二空间光调制器36，其光学连接到所述第二光源并电连接到所述图像信号电子器件; 和C）与所述第二空间光调制器光学连接的第二图像传送系统; IV）与所述第一图像传送系统和所述第二图像传送系统光学连接的扇出多路复用器39，所述扇出多路复用器的特征在于观看区域周期和观看区域周期; 和V）电连接到所述图像信号电子装置的二进制头跟踪器40，所述二进制头跟踪器包括相机42和电路板。 该系统提供实时自动立体显示功能，以及令人印象深刻的环绕功能。
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公开(公告)号：US06563612B1
公开(公告)日：2003-05-13
申请号：US09664157
申请日：2000-09-18
申请人： Tin M. Aye , Kevin H. Yu , Gajendra D. Savant
发明人： Tin M. Aye , Kevin H. Yu , Gajendra D. Savant
IPC分类号： G02B532
CPC分类号： G02B5/32 , G02B5/0252 , G02B5/0278 , G02B5/1885 , G02B27/30 , G03H1/0256 , G03H1/202 , G03H2223/12
摘要： A collimating screen simulator comprising a projector and a holographic diffuser screen. The projector is adapted to project a viewable image onto a focal plane that is spaced from the projector. The focal plane has a backside and a viewing side opposite the focal plane backside. In operation, the projector is able to project the image onto the focal plane backside. The holographic diffuser screen is adapted to permit light from a source and incident upon a surface of the diffuser screen to pass through the screen. The holographic diffuser screen has a first surface facing the focal plane viewing side for receiving the incident light. The holographic diffuser screen also has a second surface opposite the first surface. The holographic diffuser screen is spaced from the focal plane viewing side by a distance effective for enabling a viewer facing the second surface of the holographic diffuser screen to see collimated light exiting the holographic screen.
摘要翻译： 一种准直屏幕模拟器，包括投影仪和全息漫射屏幕。 投影仪适于将可视图像投影到与投影仪间隔开的焦平面上。 焦平面具有背面和与焦平面背面相对的观察侧。 在操作中，投影机能够将图像投影到焦平面背面。 全息漫射器屏幕适于允许来自源的入射到扩散器屏幕的表面上的光通过屏幕。 全息漫射器屏幕具有面向焦平面观察侧的用于接收入射光的第一表面。 全息漫射屏幕还具有与第一表面相对的第二表面。 全息漫射屏与焦平面观察侧间隔一段距离，有效使得面向全息漫射屏的第二表面的观看者可以看到离开全息屏的准直光。
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公开(公告)号：US06169594A
公开(公告)日：2001-01-02
申请号：US09139152
申请日：1998-08-24
申请人： Tin M. Aye , Gajendra D. Savant
发明人： Tin M. Aye , Gajendra D. Savant
IPC分类号： G02F113
CPC分类号： G02B5/045 , G02B5/06 , G02F1/13 , G02F1/133371 , G02F1/133526 , G02F1/141 , G02F1/29
摘要： A beam deflector comprising a pair of mated microprism arrays with one of the arrays comprised of a variable refractive index material capable of being selectively changed in response to a field whose magnitude or intensity is regulated by regulating voltage applied. The other array preferably is comprised of a material having a constant refractive index. A conductive layer is disposed on both sides of the variable refractive index array. A pane preferably is disposed in front and behind the arrays. Two pairs of the arrays can be arranged parallel to each other with their microprisms generally perpendicular forming a two-dimensional deflector. To achieve a deflection response time faster than 100 &mgr;s, each prism has a height no larger than about 20 &mgr;m and a width preferably no greater than about 100 &mgr;m. Preferably, each prism height is less than about 15 to about 10 &mgr;m to achieve a response time 30 &mgr;s or faster. A method of making the deflector includes using direct-write electron beam lithography to make a master for replicating arrays having a height of 10 &mgr;m or less. A pair of deflectors can be used to deflect a beam in two dimensions and can be used in a scanner. Where the beam is a laser, the deflector can be used in a laser imaging radar assembly. Such a scanner and laser imaging radar assembly provide fast scanning of an object or region advantageously without requiring the deflector to move during scanning.
摘要翻译： 一种光束偏转器，包括一对匹配的微棱镜阵列，其中的一个阵列由可变折射率材料构成，该可变折射率材料能够响应于通过调节施加的电压来调节其幅度或强度的场来选择性地改变。 另一阵列优选由具有恒定折射率的材料构成。 导电层设置在可变折射率阵列的两侧。 板最好布置在阵列的前面和后面。 两对阵列可以彼此平行布置，其微棱镜通常垂直形成二维偏转器。 为了实现比100微米快的偏转响应时间，每个棱镜的高度不大于约20μm，宽度优选不大于约100μm。 优选地，每个棱镜高度小于约15至约10um，以实现30微秒或更快的响应时间。 制造偏转器的方法包括使用直写式电子束光刻法来制作具有10mum或更小的高度的复制阵列的母版。 可以使用一对偏转器将光束在两个维度上偏转，并可用于扫描仪。 在光束是激光的地方，偏转器可用于激光成像雷达组件。 这种扫描仪和激光成像雷达组件可有效地提供物体或区域的快速扫描，而不需要偏转器在扫描期间移动。
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