发明名称 OPTICAL ELEMENT
摘要 An optical element includes a microlouver including transparent layers and light absorbing layers alternately disposed, the light absorbing layers constraining the extent of the direction in which light passing through the transparent layers exits, and a diffusion layer provided on the microlouver. The angle of the field of view varies in such a way that the angle of the field of the view light passing thorough the peripheral area of the optical element is smaller than the angle of the field of view of light passing thorough the central area of the optical element.
申请公布号 US2008144179(A1) 申请公布日期 2008.06.19
申请号 US20070866763 申请日期 2007.10.03
申请人 NEC LCD TECHNOLOGIES, LTD. 发明人 MIMURA KOJI;SUMIYOSHI KEN
分类号 G02B5/02 主分类号 G02B5/02
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