MICRO-PROJECTOR
    1.
    发明申请
    MICRO-PROJECTOR 审中-公开
    微投影机

    公开(公告)号:US20110037953A1

    公开(公告)日:2011-02-17

    申请号:US12731860

    申请日:2010-03-25

    IPC分类号: G02B27/48 G03B21/14

    摘要: The present invention provides a projection display comprising an illumination system comprising at least one laser source unit and configured and operable for producing one or more light beams; a spatial light modulating (SLM) system accommodated at output of the illumination system and comprising one or more SLM units for modulating light incident thereon in accordance with image data; and a light projection optics for imaging modulated light onto a projection surface. The illumination system comprises at least one beam shaping unit comprising a Dual Micro-lens Array (DMLA) arrangement formed by front and rear micro-lens arrays (MLA) located in front and rear parallel planes spaced-apart along an optical path of light propagating towards the SLM unit, the DMLA arrangement being configured such that each lenslet of the DMLA directs light incident thereon onto the entire active surface of the SLM unit, each lenslet having a geometrical aspect ratio corresponding to an aspect ratio of said active surface of the SLM unit.

    摘要翻译: 本发明提供了一种投影显示器,其包括一个照明系统,该照明系统包括至少一个激光源单元,并被配置和可操作以产生一个或多个光束; 空间光调制(SLM)系统,其容纳在所述照明系统的输出处,并且包括用于根据图像数据调制入射到其上的光的一个或多个SLM单元; 以及用于将调制光成像到投影表面上的光投射光学器件。 照明系统包括至少一个光束整形单元,其包括由位于沿着光传播的光路间隔开的前后平行平面中的前后微透镜阵列(MLA)形成的双微透镜阵列(DMLA) 朝向SLM单元,DMLA布置被配置为使得DMLA的每个小透镜将入射到其上的光引导到SLM单元的整个有效表面上,每个小透镜具有对应于SLM的所述有效表面的纵横比的几何纵横比 单元。