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    • 9. 发明专利
    • Projector with enhanced security for interrupting illegal action due to camcorder
    • 投影机具有加强对CAMCORDER中断非法行为的安全性
    • JP2004295098A
    • 2004-10-21
    • JP2004049686
    • 2004-02-25
    • Eastman Kodak Coイーストマン コダック カンパニー
    • NELSON DAVID J
    • G02F1/13G03B21/00H04N5/74H04N5/913H04N9/31
    • H04N5/913H04N5/74H04N9/31H04N2005/91314H04N2005/91335H04N2005/91342H04N2005/91371H04N2005/91392
    • PROBLEM TO BE SOLVED: To provide a disturbance generator capable of making one or more illumination colors obscure time-wise or spatially in a copy suppressing projector for projecting a digital moving image to a display screen. SOLUTION: The projector (10) with enhanced security which includes a copy protect illumination system (1) for illuminating a spatial light modulator (30) and interrupts illegal action due to a camcorder comprises a polychromatic light source (20), an uniforming optical element (22) for uniforming light from the polychromatic light source so as to supply a uniform illumination visual field, a relay optical element, a dichroic optical element, an interference modulation element (5) set on a face in an optical path between the polychromatic light source and the spatial light modulator, and a detection means for judging the rack of the interference modulation element. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种干扰发生器,其能够使一个或多个照明颜色在复制抑制投影仪中在时间上或空间上模糊,以将数字运动图像投影到显示屏幕。 解决方案:具有增强安全性的投影仪(10),其包括用于照亮空间光调制器(30)并中断由摄像机引起的非法动作的复制保护照明系统(1),包括多色光源(20), 均匀化光学元件(22),用于使来自多色光源的光均匀化,以提供均匀的照明视野;中继光学元件;二向色光学元件;设置在光路中的干涉调制元件(5) 多色光源和空间光调制器,以及用于判断干涉调制元件的支架的检测装置。 版权所有(C)2005,JPO&NCIPI