发明名称 Image projection apparatus
摘要 An image projection apparatus includes a light source, light from which is used to form an image to be projected, a first flow path, a control unit configured to control a light emission from the light source, an electrical power stabilizing unit configured to stabilize an electrical power to be supplied to the light source, and an electrical power source unit configured to supply the electrical power to at least one of the control unit and the electrical power stabilizing unit. One or both of the electrical power source unit and the electrical power stabilizing unit is/are divided into a plurality of boards. The light source is arranged on a normal line of a surface of any of the plurality of boards. The plurality of boards configure surfaces of the first flow path except a surface nearest to the light source.
申请公布号 US9291883(B2) 申请公布日期 2016.03.22
申请号 US201514659261 申请日期 2015.03.16
申请人 RICOH COMPANY, LIMITED 发明人 Yamada Masamichi;Fujioka Tetsuya;Tsukioka Yasutada;Ishikawa Naoyuki;Kanai Hideo
分类号 G03B21/16;G03B21/14;H04N9/31;G03B21/28;G03B21/20 主分类号 G03B21/16
代理机构 Oblon, McClelland, Maier & Neustadt, L.L.P. 代理人 Oblon, McClelland, Maier & Neustadt, L.L.P.
主权项 1. An image projector, comprising: a light source to emit light; a fan to make air flow toward an exhaust outlet of the image projector; an image generator to generate an image using the light from the light source; a concave mirror to reflect the image from the image generator; a circuit board including a surface that faces the air flow; and a cover to cover at least the concave mirror, wherein the air flow passes between the cover and a rear surface of the concave mirror.
地址 Tokyo JP