发明授权
US08422092B2 Illuminating device, image-reading apparatus, and image-forming equipment
有权
照明装置，图像读取装置和图像形成装置
- 专利标题： Illuminating device, image-reading apparatus, and image-forming equipment
- 专利标题（中）： 照明装置，图像读取装置和图像形成装置
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申请号： US12616824申请日： 2009-11-12
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公开(公告)号： US08422092B2公开(公告)日： 2013-04-16
- 发明人: Yasuhiro Suto , Mitsuharu Yoshimoto , Tomohiko Okada , Shohichi Fukutome , Hisashi Yamanaka , Kenji Nakanishi , Yoshihisa Yamada
- 申请人： Yasuhiro Suto , Mitsuharu Yoshimoto , Tomohiko Okada , Shohichi Fukutome , Hisashi Yamanaka , Kenji Nakanishi , Yoshihisa Yamada
- 申请人地址： JP Osaka
- 专利权人： Sharp Kabushiki Kaisha
- 当前专利权人： Sharp Kabushiki Kaisha
- 当前专利权人地址： JP Osaka
- 代理机构： Renner, Otto, Boisselle & Sklar, LLP
- 优先权： JP2008-292574 20081114
- 主分类号： H04N1/04
- IPC分类号： H04N1/04
摘要：
An embodiment of the present invention provides an illuminating device that is disposed in an image-reading apparatus and image-forming equipment, including a light-source portion on one side; a light-source portion on the other side; and a long translucent light-guiding member having a light-discharging face long in a longitudinal direction thereof, and guiding light derived from the one light-source portion from one end face in the longitudinal direction, and light derived from the other light-source portion from the other end face in the longitudinal direction so that the guided light is irradiated to an object through the long light-discharging face; wherein the one and the other light-source portions are arranged such that positions of optical axes thereof differ from each other in a direction that is parallel to a light-irradiated face of the object and in a direction that is perpendicular to the longitudinal direction of the light-guiding member.