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专利名称:Light guide, illuminating device having the
light guide, and image reading device andinformation processing apparatus having theilluminating device
发明人:Tatsundo Kawai,Osamu Hamamoto,Shinichi
Takeda,Satoshi Itabashi,Toshimitsu Iso
申请号:US11336982申请日:20060123公开号:US07593139B2公开日:20090922
专利附图:
摘要:In an illumination device, a light guide is adapted to emit the light from a facethereof and is provided with an area, on a face opposite to the light emitting face, fordiffusing and/or reflecting the light introduced into the light guide from an end facethereof or is provided with uneven light emitting characteristics along the longitudinaldirection of the light guide, and the center of the light source positioned at the end ofthe light guide is placed at a position aberrated from the normal line to the area,whereby attained are compactness, a low cost, a low electric power consumption, a highefficiency of utilization of the light emitted by the light source, and excellent and uniformillumination characteristics. An image reading device and an information processingapparatus can also be equipped with the above-mentioned illumination device.
申请人:Tatsundo Kawai,Osamu Hamamoto,Shinichi Takeda,Satoshi Itabashi,ToshimitsuIso
地址:Kanagawa-ken JP,Kanagawa-ken JP,Kanagawa-ken JP,Kanagawa-kenJP,Kanagawa-ken JP
国籍:JP,JP,JP,JP,JP
代理机构:Fitzpatrick, Cella, Harper & Scinto
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