发明名称 |
Image-taking lens apparatus |
摘要 |
A zoom lens system for forming an optical image of a subject on the light-receiving surface of an image sensor that converts the optical image into an electrical signal is provided with, from the object side thereof, at least a first lens unit, a second lens unit, and a third lens unit, and achieves zooming by varying the distances between the lens units. The first lens unit has a negative optical power. The second lens unit has a positive optical power. A prescribed condition is fulfilled.
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申请公布号 |
US7050241(B2) |
申请公布日期 |
2006.05.23 |
申请号 |
US20040799110 |
申请日期 |
2004.03.12 |
申请人 |
KONICA MINOLTA OPTO, INC. |
发明人 |
KOJIMA KAORI;ISHIMARU KAZUHIKO |
分类号 |
G02B15/14;G02B15/16;G02B13/18;G02B15/163;G02B15/177;G02B17/08 |
主分类号 |
G02B15/14 |
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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