发明名称 Color separating unit and projection type video display apparatus provided with the same
摘要 A projection type video display apparatus having improved color separating ability is provided. The projection type video display apparatus includes a color separating unit including an entrance plate provided with an aperture through which light beams emitted by a light source travel, an optical integrator, and a plurality of dichroic mirrors disposed with their color separating surfaces extended substantially parallel to the exit surface of the optical integrator and capable of transmitting color light beams of wavelengths in a predetermined wavelength range and of reflecting color light beams of wavelengths outside the predetermined wavelength range.
申请公布号 US2007019163(A1) 申请公布日期 2007.01.25
申请号 US20060471030 申请日期 2006.06.19
申请人 HITACHI, LTD. 发明人 IKEDA HIDEHIRO;YATSU MASAHIKO;HIRATA KOJI;ADACHI KEI
分类号 G03B21/14 主分类号 G03B21/14
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