| 发明名称 |
Image reading apparatus capable of controlling light emission amount |
| 摘要 |
An image reading apparatus has a projecting light source and a photo-sensitive device for receiving the projected light. In addition, a device is provided for measuring characteristics of the image reading apparatus while changing a light emission amount from the light source on the basis of an instruction by the user.
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| 申请公布号 |
US5696608(A) |
申请公布日期 |
1997.12.09 |
| 申请号 |
US19930052383 |
申请日期 |
1993.04.19 |
| 申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
MATSUO, TAKAYUKI;SUGISHIMA, KIYOHISA |
| 分类号 |
H04N1/00;G06T1/00;H04N1/04;H04N1/19;H04N1/40;H04N1/407;(IPC1-7):H04N1/04;H04N1/46 |
主分类号 |
H04N1/00 |
| 代理机构 |
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代理人 |
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| 主权项 |
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