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    • 37. 发明授权
    • Anamorphic illumination of micro-electromechanical display devices employed in multimedia projectors
    • 用于多媒体投影仪的微机电显示装置的变形照明
    • US06719429B2
    • 2004-04-13
    • US09823389
    • 2001-03-30
    • Mark Peterson
    • Mark Peterson
    • G03B2100
    • G02B27/09G03B21/2026G03B21/208G03B33/08H04N5/7458H04N9/3114H04N9/3152
    • Micro-electromechanical display device (“MDD”)-based multimedia projectors (90, 120) of this invention employ an arc lamp (32), a color modulator (42), and anamorphic illumination systems (94, 121) for optimally illuminating a MDD (50, 76) to improve projected image brightness. MDDs employ off-axis illumination wherein incident and reflected light bundles are angularly separated about a hinge axis (78, 110) and the MDD is illuminated by the anamorphic illumination systems of this invention having a slow f/# parallel to the hinge axis and a faster f/# perpendicular to the hinge axis. The resulting anamorphic light bundles (86, 88, 112, 114) illuminate and reflect more light into and off the MDD and through a fast f/# projection lens.
    • 本发明的基于微机电显示装置(“MDD”)的多媒体投影仪(90,120)采用弧光灯(32),彩色调制器(42)和变形照明系统(94,121),用于最佳地照亮 MDD(50,76),以改善投影图像亮度。 MDD采用离轴照明,其中入射和反射光束围绕铰链轴线(78,110)成角度地分离,并且MDD被具有平行于铰链轴的慢f /#的本发明的变形照明系统照射,并且 更快的f /#垂直于铰链轴。 所产生的变形光束(86,88,112,114)照亮并将更多的光反射进入MDD和/或通过快速f /#投影透镜。