发明名称 |
Original illuminating device and original reading device preventing random reflected light |
摘要 |
An original illuminating device includes LED (light-emitting diode) chips and a lens for condensing light emitted from the LED chips on an original-reading position, on the same substrate. The device is configured so as to prevent randomly-reflected light in the device from being specularly reflected by an original-mount glass toward a reading device. Since the specularly-reflected light is not incident upon the reading device, only light corresponding to an image on an original is incident upon the reading device. It is therefore possible to correctly read the original.
|
申请公布号 |
US5313289(A) |
申请公布日期 |
1994.05.17 |
申请号 |
US19910759901 |
申请日期 |
1991.03.06 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
NAGANE, HIROMICHI;TAKAHASHI, KOJI |
分类号 |
G03G15/04;H04N1/03;(IPC1-7):G02F1/13 |
主分类号 |
G03G15/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|