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    • 63. 发明申请
    • Projection device provided with semiconductor light source
    • 提供半导体光源的投影装置
    • US20090102988A1
    • 2009-04-23
    • US12286836
    • 2008-10-01
    • Yoshihiro MaedaKazuma AraiTaro EndoFusao Ishii
    • Yoshihiro MaedaKazuma AraiTaro EndoFusao Ishii
    • H04N5/74
    • G03B21/2033G03B21/2013G03B21/2053G03B33/06H04N9/3123H04N9/3155
    • The present invention provides a projection device comprising a semiconductor light source comprises a plurality of sub light sources arranged in an array, an illumination optical system for guiding an illumination light emitted from the semiconductor light source, a spatial light modulator for receiving and applying an image signal for modulating the illumination light emitted from the semiconductor light source guided by said illumination optical system, a control circuit for controlling the semiconductor light source and the spatial light modulator and a projection optical system for projecting images by applying the illumination light modulated by the spatial light modulator. The control circuit controls or adjusts the emitting state of the semiconductor light source by modifying at least two of following parameters consisted of an emission intensity, a number of times of emission, an emission period and an emitting timing of the sub light source or a number of emitted light and an emitting position of the sub light sources.
    • 本发明提供了一种投影装置,包括:半导体光源,包括排列成阵列的多个子光源,用于引导从半导体光源发出的照明光的照明光学系统,用于接收和施加图像的空间光调制器 用于调制由所述照明光学系统引导的从半导体光源发出的照明光的信号,用于控制半导体光源和空间光调制器的控制电路,以及用于通过施加由空间调制的照明光来投影图像的投影光学系统 光调制器。 控制电路通过修改由发光强度,发光次数,发光周期和子光源的发射定时或数量的以下的至少两个参数来控制或调整半导体光源的发光状态 的发光和子光源的发射位置。