发明名称 |
Image reading apparatus with adjustable exposure |
摘要 |
In an image reading apparatus for reading an image recorded on a film, an amount of light being incident on a line sensor comprised in the apparatus and transmitted through the film is adjusted according to the image density of the film such that a relative speed between the film and the line sensor and the luminance of a lamp for irradiating light on the film are controlled.
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申请公布号 |
US6252645(B1) |
申请公布日期 |
2001.06.26 |
申请号 |
US19980026544 |
申请日期 |
1998.02.19 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
NAGANO MASATOSHI;ONDA YOSHINARI;SATO HIDEKAGE |
分类号 |
G03B27/73;(IPC1-7):G03B27/00;G03B27/32;G03B27/72 |
主分类号 |
G03B27/73 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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