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    • 18. 发明申请
    • DIGITAL LIGHT PROCESSING PROJECTION APPARATUS
    • 数码光处理投影设备
    • US20070247591A1
    • 2007-10-25
    • US11457820
    • 2006-07-17
    • Jyh-Horng ShyuChia-Chen LiaoChu-Ming ChengHuang-Ming Chen
    • Jyh-Horng ShyuChia-Chen LiaoChu-Ming ChengHuang-Ming Chen
    • G03B21/00
    • G03B21/008
    • A digital light processing (DLP) projection apparatus including an illumination system, a digital micro-mirror device (DMD) and an imaging system is provided. The DMD having a common plane and micro mirrors disposed on the common plane is disposed on a transmission path of the illumination beam to convert an illumination beam from the illumination system into an imaging beam into a screen. The imaging system includes a projection lens disposed on a transmission path of the imaging beam and a total internal reflection (TIR) prism disposed between the DMD and the projection lens. The projection lens has an optical axis, which is not parallel to a normal vector of the common plane and a chief beam of the imaging beam. At least one of the normal vectors of the surfaces of the TIR prism opposite to the projection lens and the DMD is not parallel to the optical axis.
    • 提供了包括照明系统,数字微镜装置(DMD)和成像系统的数字光处理(DLP)投影装置。 具有设置在公共平面上的公共平面和微反射镜的DMD设置在照明光束的传输路径上,以将来自照明系统的照明光束转换成成像光束到屏幕。 成像系统包括设置在成像光束的透射路径上的投影透镜和设置在DMD和投影透镜之间的全内反射(TIR)棱镜。 投影透镜具有不与公共平面的法线矢量和成像光束的主光束平行的光轴。 与投影透镜和DMD相反的TIR棱镜的表面的法向矢量中的至少一个不平行于光轴。