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    • 6. 发明授权
    • Polarization conversion systems for stereoscopic projection
    • 用于立体投影的极化转换系统
    • US08833943B2
    • 2014-09-16
    • US13550182
    • 2012-07-16
    • Miller H. SchuckMichael G. RobinsonGary D. Sharp
    • Miller H. SchuckMichael G. RobinsonGary D. Sharp
    • G03B21/14H04N13/04G02B27/26G03B35/26G02B27/28
    • G03B35/26G02B27/2264G02B27/26G02B27/283G03B21/142G03B21/28G03B35/22H04N13/341
    • A polarization conversion system (PCS) is located in the output light path of a projector. The PCS may include a polarizing beam splitter, a polarization rotating element, a reflecting element, and a polarization switch. Typically, a projector outputs randomly-polarized light. This light is input to the PCS, in which the PCS separates p-polarized light and s-polarized light at the polarizing beam splitter. P-polarized light is directed toward the polarization switch on a first path. The s-polarized light is passed on a second path through the polarization rotating element (e.g., a half-wave plate), thereby transforming it to p-polarized light. A reflecting element directs the transformed polarized light (now p-polarized) along the second path toward the polarization switch. The first and second light paths are ultimately directed toward a projection screen to collectively form a brighter screen image in cinematic applications utilizing polarized light for three-dimensional viewing.
    • 偏振转换系统(PCS)位于投影仪的输出光路中。 PCS可以包括偏振分束器,偏振旋转元件,反射元件和偏振开关。 通常,投影仪输出随机偏振光。 该光被输入到PCS,其中PCS在偏振分束器处分离p偏振光和s偏振光。 P偏振光在第一路径上被引向偏振开关。 s偏振光在穿过偏振旋转元件(例如半波片)的第二路径上通过,从而将其变换为p偏振光。 反射元件将沿着第二路径的变换的偏振光(现在p偏振光)引向偏振开关。 第一和第二光路最终定向到投影屏幕,以在使用偏振光进行三维观看的电影应用中共同形成更亮的屏幕图像。
    • 8. 发明授权
    • Illumination systems for visual displays
    • 用于视觉显示的照明系统
    • US08643928B2
    • 2014-02-04
    • US11944583
    • 2007-11-23
    • Michael G. Robinson
    • Michael G. Robinson
    • G02B26/00G02F1/00
    • G02B27/145G02B19/0014G02B19/0057G02B19/0066G02B27/0955G02B27/1053G02B27/123
    • Two or more spectral emitters are used to provide spectrally separated light illumination onto modulating pixels of a visual display. The spectral emitters may be lasers or LEDs, typically having coherent properties. Generally, a display system includes a spectral emitter array, a light collimating element, a lens array, and a light modulating panel. The spectral emitter array includes a first spectral emitter operable to emit light of a first wavelength and a second spectral emitter operable to emit light of a second wavelength. The light collimating element is operable to direct light from the spectral emitter toward the lens array, and the lens array is operable to direct light toward the light modulating panel.
    • 使用两个或更多个光谱发射器来在视觉显示器的调制像素上提供光谱分离的光照射。 光谱发射器可以是通常具有相干特性的激光器或LED。 通常,显示系统包括光谱发射器阵列,光准直元件,透镜阵列和光调制面板。 光谱发射器阵列包括可操作以发射第一波长的光的第一光谱发射器和可操作以发射第二波长的光的第二光谱发射器。 光准直元件可操作以将来自光谱发射器的光引向透镜阵列,并且透镜阵列可操作以将光引向光调制面板。