发明名称 PROJECTOR
摘要 A projector includes: a light source; a polarization conversion element array having an entrance surface on which an effective entrance area and an ineffective entrance area are disposed to form stripes; a modulation device adapted to modulate a linearly polarized light beam emitted from the polarization conversion element array in accordance with an image signal; a projection device adapted to project the modulated light beam; a first light shielding section, a part of the entrance surface being provided with the first light shielding section adapted to shield a part of the incident light beam to the effective entrance area; and a first opening section, the first opening section being another area of the entrance surface than the part provided with the first light shielding section, at least a part of the first opening section reaches an end of the entrance surface.
申请公布号 US2010039621(A1) 申请公布日期 2010.02.18
申请号 US20090507191 申请日期 2009.07.22
申请人 SEIKO EPSON CORPORATION 发明人 HAYASHI DAISUKE;YOSHIDA KANJI
分类号 G03B21/14 主分类号 G03B21/14
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