发明名称 Reflection type projection display apparatus
摘要 One of preferred embodiments according to the present invention provides a reflection type projection apparatus that includes wire grid polarizers provided respectively for red (R), green (G) and blue (B) light that allow a first polarization component included in R, G, or B light from illumination units to pass therethrough and reflect second polarization components of R, G and B colors that have been produced when reflection type spatial light modulation elements respectively for R, G and B light light-modulate and reflect the first polarization component having once passed through the wire grid polarizers respectively for R, G and B light, the transmission type polarizing plates provided respectively for R, G and B light, and a color combination optical system in this order along a light path, wherein any one of the light reflection surface of at least one of the wire grid polarizers respectively for R, G and B light, the light transmission surface of at least one of the transmission type polarizing plates for R, G and B light, and at least one of the light incident surfaces of the color combination optical system is convexly or concavely shaped in accordance with lateral chromatic aberration of the projection lens, in order to correct for the reduction of lateral chromatic aberration of the image projected on a projection plane.
申请公布号 US7520617(B2) 申请公布日期 2009.04.21
申请号 US20060347298 申请日期 2006.02.06
申请人 VICTOR COMPANY OF JAPAN, LTD. 发明人 KOBAYASHI MANABU
分类号 G03B21/14;G03B21/00 主分类号 G03B21/14
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