发明名称 Illumination apparatus and image projection apparatus using the illumination apparatus
摘要 An illumination apparatus which applies light from light emitting members to a region to be illuminated, comprises a emitted light quantity control unit which controls emitted light quantities of the members, and a light transmissibility changing unit capable of controlling transmissibility of each light path which transmits output light of the light emitting member to the region. The controls of the emitted light quantity control unit and the light transmissibility changing unit are performed in such a manner that an illuminative light quantity in the region during intermittent lighting of a predetermined number of light emitting members which are some of the light emitting members at a driving current value larger than a rated current in a predetermined period is larger than an illuminative light quantity in the region during constant lighting of the predetermined number of light emitting members at a rated driving current in the predetermined period.
申请公布号 US2005128436(A1) 申请公布日期 2005.06.16
申请号 US20040005388 申请日期 2004.12.06
申请人 OLYMPUS CORPORATION 发明人 MATSUI SHINZO
分类号 G02F1/13;F21V9/14;G02F1/133;G02F1/13357;G03B21/00;G03B21/14;H01L33/58;H04N9/31;H05B37/02;(IPC1-7):F21V9/14 主分类号 G02F1/13
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