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公开(公告)号：US08016422B2
公开(公告)日：2011-09-13
申请号：US12259307
申请日：2008-10-28
IPC分类号： G03B21/14
CPC分类号： G02B27/102 , G02B19/0028 , G02B19/0057 , G02B27/143 , G02B27/145 , G02B27/147 , G02B27/283 , G02B27/286 , H04N9/3129 , H04N9/3161 , H04N9/3167
摘要： Etendue maintaining polarization switching occurs, according to various embodiments, with a mirror that quickly transitions between two positions. Light having uniform polarization is transmitted to the mirror. Light reflected off of the mirror in one of the two positions has its polarization changed, whereas light reflected off of the mirror in the other of the two positions has its polarization maintained. Thereafter, the polarization-changed light and the polarization-maintained light easily may be recombined in an entendue-maintaining manner. Because the recombined light includes two different polarization states, stereoscopic images may be generated.
摘要翻译： 根据各种实施例，通过在两个位置之间快速转换的反射镜发生停止维持偏振切换。 具有均匀偏振的光被透射到反射镜。 在两个位置中的一个反射的反射镜的光具有其偏振改变，而在两个位置中的另一个位置反射离开反射镜的光具有保持其极化。 此后，极化改变的光和偏振保持光容易地以保持方式重新组合。 因为重新组合的光包括两个不同的偏振状态，所以可以产生立体图像。
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公开(公告)号：US07988306B2
公开(公告)日：2011-08-02
申请号：US12244032
申请日：2008-10-02
摘要： A projection apparatus has a spatial light modulator to modulate illumination from a laser light source. A base projection lens has, from its long conjugate side to its short conjugate side, a first lens group with negative focal length and with a first lens element that has a negative focal length and a second lens element of positive focal length, a second lens group of negative focal length and spaced apart from the first lens group and having one or more cemented lens elements, and a third lens group spaced apart from the second lens group and having a lens with a positive focal length. The base projection lens has a first field of view and is telecentric in its short conjugate. An afocal attachment to the base projection lens alters the first field of view by the same amount in both of two orthogonal directions.
摘要翻译： 投影装置具有用于调制来自激光光源的照明的空间光调制器。 基底投影透镜从其长的共轭侧到其短的共轭侧具有负焦距的第一透镜组和具有负焦距的第一透镜元件和具有正焦距的第二透镜元件，第二透镜 并且具有一个或多个胶合透镜元件和与第二透镜组间隔开并且具有正焦距的透镜的第三透镜组。 基底投影透镜具有第一视场，并且在其短接头中是远心的。 与基准投影透镜的无焦附着在两个正交方向上将第一视场改变相同的量。
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公开(公告)号：US20110013144A1
公开(公告)日：2011-01-20
申请号：US12502426
申请日：2009-07-14
CPC分类号： G03B33/12 , G03B33/06 , G03B35/26 , H04N9/3164 , H04N9/3167 , H04N13/324 , H04N13/337 , H04N13/341 , H04N13/346 , H04N13/363
摘要： A stereoscopic digital image projecting system has a light source system providing polarized illumination having a first polarization state and a beam splitting system with a rotating segmented disk in the illumination, alternately generating first and second light beams, the rotating segmented disk having outer segments alternately transmissive and non-transmissive and inner segments radially aligned with the outer segments and alternately reflective and transmissive. A polarization rotator in a path of either the first or second light beam rotates the first polarization state to a second state orthogonal to the first. A combining system combines the first and second light beams into a combined light beam. A spatial light modulator modulates the combined light beam in a manner consistent with stereoscopic image data to form first and second modulated images having substantially orthogonal polarization states. Projection optics project the modulated images onto a display surface.
摘要翻译： 立体数字图像投影系统具有提供具有第一偏振态的偏振照明的光源系统和在照明中具有旋转分段盘的分束系统，交替地产生第一和第二光束，旋转分段盘具有外部段交替透射 以及与外部段径向对齐并且交替反射和透射的非透射和内部区段。 第一或第二光束的路径中的偏振旋转器将第一偏振状态旋转到与第一偏振状态正交的第二状态。 组合系统将第一和第二光束组合成组合的光束。 空间光调制器以与立体图像数据一致的方式调制组合光束，以形成具有基本上正交偏振状态的第一和第二调制图像。 投影光学器件将调制图像投影到显示表面上。
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公开(公告)号：US20100328616A1
公开(公告)日：2010-12-30
申请号：US12491275
申请日：2009-06-25
CPC分类号： H04N9/3155 , H04N9/3129 , H04N9/73
摘要： In a light projection system, potentially hierarchical levels of light intensity control ensure proper laser-light output intensity, color channel intensity, white point, left/right image intensity balancing, or combinations thereof The light projection system can include a light intensity sensor in an image path, in a light-source subsystem light-dump path, in a light-modulation subsystem light-dump path, in a position to measure light leaked from optical components, or combinations thereof.
摘要翻译： 在光投射系统中，光强度控制的潜在分层级确保了适当的激光输出强度，颜色通道强度，白点，左/右图像强度平衡或其组合。光投射系统可以包括光强度传感器 在光源子系统光倾倒路径中，在光调制子系统光倾倒路径中的位置，以测量从光学部件泄漏的光的位置，或其组合。
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公开(公告)号：US20100328611A1
公开(公告)日：2010-12-30
申请号：US12491298
申请日：2009-06-25
申请人： Barry D. Silverstein , Richard P. Corey , Allen D. Bellinger , Gary E. Nothhard , David R. Dowe
发明人： Barry D. Silverstein , Richard P. Corey , Allen D. Bellinger , Gary E. Nothhard , David R. Dowe
CPC分类号： G03B35/26 , G03B21/2053 , H04N9/3155 , H04N9/3161 , H04N13/133 , H04N13/324 , H04N13/337 , H04N13/363 , H04N13/398
摘要： In a light projection system, potentially hierarchical levels of light intensity control ensure proper laser-light output intensity, color channel intensity, white point, left/right image intensity balancing, or combinations thereof The light projection system can include a light intensity sensor in an image path, in a light-source subsystem light-dump path, in a light-modulation subsystem light-dump path, in a position to measure light leaked from optical components, or combinations thereof.
摘要翻译： 在光投射系统中，光强度控制的潜在分层级确保了适当的激光输出强度，颜色通道强度，白点，左/右图像强度平衡或其组合。光投射系统可以包括光强度传感器 在光源子系统光倾倒路径中，在光调制子系统光倾倒路径中的位置，以测量从光学部件泄漏的光的位置，或其组合。
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公开(公告)号：US20100328609A1
公开(公告)日：2010-12-30
申请号：US12491279
申请日：2009-06-25
CPC分类号： G03B21/2053 , G03B21/2013 , G03B21/2033 , G03B33/12 , G03B35/26 , H04N9/3155 , H04N9/3161 , H04N13/133 , H04N13/363
摘要： In a light projection system, potentially hierarchical levels of light intensity control ensure proper laser-light output intensity, color channel intensity, white point, left/right image intensity balancing, or combinations thereof. The light projection system can include a light intensity sensor in an image path, in a light-source subsystem light-dump path, in a light-modulation subsystem light-dump path, in a position to measure light leaked from optical components, or combinations thereof.
摘要翻译： 在光投射系统中，光强度控制的潜在层级可以确保激光光输出强度，颜色通道强度，白点，左/右图像强度平衡或其组合。 光投射系统可以包括在光源子系统光倾倒路径中的光调制子系统光倾倒路径中的图像路径中的光强度传感器，以测量从光学部件泄漏的光的位置或组合 其中。
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公开(公告)号：US20100321639A1
公开(公告)日：2010-12-23
申请号：US12488661
申请日：2009-06-22
CPC分类号： G02B27/48 , G03B21/2013 , G03B21/2033 , G03B21/208 , H04N9/3105 , H04N9/3161
摘要： A laser projection system comprising a laser source system configured to emit coherent light, an optical integrating system configured to uniformize coherent light it receives, a randomizing optical element configured to spatially move over time in order to temporally randomize the phase, angle or spatial location of coherent light it receives, an image forming system configured to interact with laser light that has been both uniformized by the optical integrating system and randomized by the randomizing optical element, thereby forming a laser light image, and a projection system configured to project the laser light image onto a viewing screen.
摘要翻译： 一种激光投影系统，包括被配置为发射相干光的激光源系统，被配置为使其接收的相干光均匀化的光学积分系统，被配置为随时间空间移动的随机化光学元件，以便在时间上随机化相位，角度或空间位置 所接收的相干光，被配置为与已经被光学积分系统均匀化并随机化的光学元件随机化的激光相互作用的图像形成系统，从而形成激光图像;以及投影系统，被配置为投影激光 图像到观看屏幕上。
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公开(公告)号：US20100302514A1
公开(公告)日：2010-12-02
申请号：US12473451
申请日：2009-05-28
CPC分类号： G02B27/149 , G02B27/1026 , G02B27/1073 , G02B27/126 , G02B27/143 , H01S5/005 , H01S5/4087
摘要： A beam alignment system for generating an aligned two-dimensional array of parallel light beams, comprising a beam alignment chamber including a base extending in a length direction and a plurality of reflectors mounted on the base, each having independent yaw and pitch adjustments. The beam alignment system further includes a plurality of arrays of light sources, each generating an array of light beams and being paired with a corresponding reflector, the reflectors being disposed to direct the light beams along the length of the beam alignment chamber forming an aligned two-dimensional array of parallel light beams.
摘要翻译： 一种用于产生对准的平行光束的二维阵列的光束对准系统，包括：光束对准室，包括沿长度方向延伸的基座和安装在基座上的多个反射器，每个具有独立的偏航和俯仰调节。 光束对准系统还包括多个光源阵列，每个阵列产生一束光束并与相应的反射器成对配置，反射器设置成沿光束对准室的长度引导光束，形成对准的两个 平行光束的三维阵列。
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公开(公告)号：US20100103526A1
公开(公告)日：2010-04-29
申请号：US12259326
申请日：2008-10-28
IPC分类号： G02B27/10
CPC分类号： G02B27/286 , G02B27/0927 , G02B27/0994 , G03B21/2033 , G03B21/2073 , G03B21/208
摘要： An optical integrating bar is square or rectangular in cross-section having first and second axes each perpendicular to opposite sides of the cross-section. Source light beams are transmitted to the optical integrating bar in a direction perpendicular to the cross-section. The source light beams exhibit first, second, or first and second polarization states that are orthogonal to each other. The first, second, or first and second polarization states are aligned or substantially aligned with the first, second, or first and second axes of the optical integrating bar, respectively, when the source light beams are transmitted to the optical integrating bar. In this manner, combined light exiting the optical integrating bar maintains or substantially maintains the polarization of each of the source light beams.
摘要翻译： 光学积分杆的横截面为正方形或矩形，具有垂直于横截面两侧的第一和第二轴。 源光束在垂直于横截面的方向上传输到光学积分杆。 源光束表现出彼此正交的第一，第二或第一和第二极化状态。 当源光束被传输到光学积分杆时，第一，第二或第一和第二偏振状态分别与光学积分杆的第一，第二或第一和第二轴对齐或基本上对准。 以这种方式，离开光学积分杆的组合光保持或基本上保持每个源光束的偏振。
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公开(公告)号：US5563870A
公开(公告)日：1996-10-08
申请号：US388316
申请日：1995-02-14
申请人： Barry D. Silverstein
发明人： Barry D. Silverstein
CPC分类号： G11B7/1365 , G11B7/126
摘要： An optical write/read head is provided with apparatus for monitoring the output of a read/write laser so that the laser power may be appropriately adjusted to maintain a desired level. The apparatus features a partially reflective, partially transmissive surface in the optical path between the laser source and the recording medium for reflecting a small percentage (e.g., 4% 6%) of the laser output to a photodetector forming part of an electrooptical feedback loop for controlling the laser power. Preferably, the laser power-controlling photodetector is located adjacent the photodetector used to develop the recording signal, and the partially reflective, partially transmissive surface is tipped a few degrees from normal to the optical axis. Also preferred is that the partially reflective, partially transmissive surface constitutes the rear surface of a quarter-wave plate used to rotate the angle of polarization of the read/write beam to avoid optical feedback to the laser cavity.
摘要翻译： 光学写入/读取头设置有用于监视读/写激光器的输出的装置，使得可以适当地调整激光功率以保持期望的电平。 该装置在激光源和记录介质之间的光路中具有部分反射的，部分透射的表面，用于将激光输出的小百分比（例如，4％6％）反射到形成电光反馈回路的一部分的光电检测器， 控制激光功率。 优选地，激光功率控制光电检测器位于用于显影记录信号的光电检测器附近，并且部分反射的，部分透射的表面与垂直于光轴倾斜几度。 还优选的是，部分反射的，部分透射的表面构成用于旋转读/写光束的偏振角的四分之一波片的后表面，以避免对激光腔的光反馈。
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