发明名称 Color splitting/combining optical system and image projecting apparatus
摘要 <p>A color splitting/combining optical system is disclosed, which has a color-selective wave plate and a polarization splitting surface, and in which light leakage can be decreased when displayed in black. The color splitting/combining optical system includes a first optical member for color splitting and a second optical member which has a polarization splitting surface for color splitting/combining, and a third optical member for color combining. Further, the optical system has a first color-selective wave plate and a second color-selective wave plate. The first color-selective wave plate converts the polarization direction of light in a first wavelength region by 90 degrees, and the second color-selective wave plate converts the polarization direction of light in the second wavelength region by 90 degrees. The optical system satisfies λ1≠λ2. </p>
申请公布号 EP1463339(A3) 申请公布日期 2007.08.29
申请号 EP20040251676 申请日期 2004.03.24
申请人 CANON KABUSHIKI KAISHA 发明人 OKUYAMA, ATSUSHI;ABE, MASAYUKI
分类号 G02B27/28;H04N9/31;G02B27/18;G03B21/00 主分类号 G02B27/28
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