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    • 4. 发明授权
    • Optical system unit and projector having two-planed light absorbing plate
    • 具有双平面光吸收板的光学系统单元和投影仪
    • US08136950B2
    • 2012-03-20
    • US11880637
    • 2007-07-23
    • Osamu UmamineMasanori Ohta
    • Osamu UmamineMasanori Ohta
    • G03B21/16
    • H04N9/3144
    • An optical system unit of a projector of the invention includes an illumination side block, an image producing block and a projection side block, the image producing block, in which a DMD display device is fixed which reflects rays of “off” state light to the outside of an entrance opening of a projection side optical system, has a resin accommodation case and a metallic light absorbing portion which is disposed on an inner surface of the accommodation case, an inner surface of the light absorbing portion has heat resisting properties and light absorbing properties, and the accommodation case has in an upper surface thereof a cooling opening for preventing the overheating of the resin which forms the accommodation case.
    • 本发明的投影仪的光学系统单元包括照明侧块,图像产生块和投影侧块,所述图像生成块,其中固定有DMD显示装置,其将“非”状态光的光反射到 在投影侧光学系统的入口的外侧具有设置在容纳壳体的内表面上的树脂容纳盒和金属吸光部,光吸收部的内表面具有耐热性和吸光性 性质,并且容纳壳体的上表面具有用于防止形成容纳壳体的树脂过热的冷却开口。
    • 5. 发明申请
    • Optical system unit and projector
    • 光学系统单元和投影机
    • US20080018553A1
    • 2008-01-24
    • US11880637
    • 2007-07-23
    • Osamu UmamineMasanori Ohta
    • Osamu UmamineMasanori Ohta
    • H04N9/28
    • H04N9/3144
    • An optical system unit of a projector of the invention includes an illumination side block, an image producing block and a projection side block, the image producing block, in which a DMD display device is fixed which reflects rays of “off” state light to the outside of an entrance opening of a projection side optical system, has a resin accommodation case and a metallic light absorbing portion which is disposed on an inner surface of the accommodation case, an inner surface of the light absorbing portion has heat resisting properties and light absorbing properties, and the accommodation case has in an upper surface thereof a cooling opening for preventing the overheating of the resin which forms the accommodation case.
    • 本发明的投影仪的光学系统单元包括照明侧块,图像产生块和投影侧块,所述图像生成块,其中固定有DMD显示装置,其将“非”状态光的光反射到 在投影侧光学系统的入口的外侧具有设置在容纳壳体的内表面上的树脂容纳盒和金属吸光部,光吸收部的内表面具有耐热性和吸光性 性质,并且容纳壳体的上表面具有用于防止形成容纳壳体的树脂过热的冷却开口。