发明名称 Illuminating optical system for projector including first and second integrators
摘要 An illuminating optical system that includes a first integrator that includes a plurality of lens, a second integrator that includes a plurality of lens cells on which the respective partial luminous fluxes are incident, a polarization converting element that uniformizes polarizing directions of the luminous fluxes that have passed through the respective lens cells of the second integrator, and color separating unit that separates each of the luminous flux from the polarization converting element into a plurality of color lights of different wavelengths. A field lens and a condenser lens are arranged between the polarization converting element and the separating unit to superimpose the luminous fluxes that have passed through the respective lens cells of the first integrator, on the plurality of display panels. The condenser lens is located closer to the color separating unit.
申请公布号 US7931375(B2) 申请公布日期 2011.04.26
申请号 US20080073548 申请日期 2008.03.06
申请人 NEC DISPLAY SOLUTIONS, LTD. 发明人 IWASHITA TSUTOMU
分类号 G03B21/14 主分类号 G03B21/14
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