发明名称 |
Photographing apparatus having a trimming photographic mode |
摘要 |
A photographing apparatus having at least two modes, i.e., a first mode for setting and photographing a first photographing area of a photographing area photographed by a photo-taking optical system, and a second mode for setting and photographing a second photographing area smaller than the first photographing area. The apparatus has in succession from the object side a first lens unit and a second lens unit. The first lens unit comprises a positive lens of positive refractive power and a negative lens of negative refractive power, and the second lens unit comprises a positive lens. The spacing between the first lens unit and the second lens unit is varied during the changeover between the first mode and the second mode. |
申请公布号 |
US5392082(A) |
申请公布日期 |
1995.02.21 |
申请号 |
US19940236147 |
申请日期 |
1994.05.02 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
IKEMORI, KEIJI;KOYAMA, TAKESHI |
分类号 |
G03B17/24;(IPC1-7):G03B1/18 |
主分类号 |
G03B17/24 |
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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