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    • 1. 发明申请
    • Projection Display Device
    • 投影显示设备
    • US20080013052A1
    • 2008-01-17
    • US11574735
    • 2005-08-31
    • Ramon Van GorkomMarcellinus KrijnSiebe De ZwartOscar Willemsen
    • Ramon Van GorkomMarcellinus KrijnSiebe De ZwartOscar Willemsen
    • G03B21/14G03B21/00
    • H04N9/3132H04N5/7416
    • The invention relates to a projection display device (10, 40, 60, 70) for casting an image onto a projection screen (26, 56, 86). The device comprises a spatial light modulator (16, 46, 62, 76) including an array of light modulating elements (18, 48, 78), and a light source (12, 42, 72) arranged to illuminate the modulator. The device is characterized in that each light modulating element of the modulator is illuminated by light diverging in a least one dimension, which light is spatially modulated by the modulator and cast onto the projection screen. An advantage with the projection display device according to the invention is that it can be realized in a very compact fashion. The invention further relates to a hand held device comprising such projection display device.
    • 本发明涉及一种用于将图像投影到投影屏幕(26,56,86)上的投影显示装置(10,40,60,70)。 该装置包括包括光调制元件阵列(18,48,78)的空间光调制器(16,46,62,76)和被布置成照亮调制器的光源(12,42,72)。 该装置的特征在于,调制器的每个光调制元件以至少一个维度发散的光照射,该光被调制器空间调制并投射到投影屏幕上。 根据本发明的投影显示装置的优点是可以以非常紧凑的方式实现。 本发明还涉及一种包括这种投影显示装置的手持式装置。