发明名称 LIGHT CONTROL DEVICE, LIGHTING DEVICE, AND PROJECTOR
摘要 <P>PROBLEM TO BE SOLVED: To provide a light control device, capable of reducing the light quantity returned to a light emitting area, a lighting device and a projector. Ž<P>SOLUTION: The light control device 5 which controls the transmission amount of a luminous flux emitted from a predetermined emission area (light emitting part) includes rotation members (gears) 54 and 55 having rotation axes AX1 and AX2 extending in a direction substantially orthogonal to the center axis of the luminous flux, and light shielding members 56 and 57 supported by the rotation members 54 and 55 and shielding at least a part of the luminous flux by rotation of the rotation members 54 and 55. The light shielding members 56 and 57 have light shielding surfaces 56A and 57A which regulate the transmission of incident light to shield the light. The light shielding surfaces 56A and 57A are so processed as to reduce the amount of light reflected by the light shielding surfaces 56A and 57A and reaching the emission area. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
申请公布号 JP2009244848(A) 申请公布日期 2009.10.22
申请号 JP20080318112 申请日期 2008.12.15
申请人 SEIKO EPSON CORP 发明人 NAKANO HIROHISA
分类号 G03B21/00;G02F1/13;G02F1/13357;G03B21/14 主分类号 G03B21/00
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