发明名称 |
ZOOM LENS, IMAGE PICKUP APPARATUS AND DIGITAL EQUIPMENT |
摘要 |
A zoom lens includes a first lens group having a negative optical power and including a reflection optical element; a second lens group having a positive optical power; a third lens group having a negative optical power; a fourth lens group having a positive optical power; and, a fifth lens group. At least the second lens group and the fourth lens group move to the object side of the zoom lens for varying a power of the zoom lens from a wide-angle end to a telephoto end. The zoom lens further includes a diaphragm and the diaphragm moves to the object side for varying the power of the zoom lens from the wide-angle end to the telephoto end.
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申请公布号 |
US2009002846(A1) |
申请公布日期 |
2009.01.01 |
申请号 |
US20080141332 |
申请日期 |
2008.06.18 |
申请人 |
KONICA MINOLTA OPTO, INC. |
发明人 |
SOUMA YOSHIHITO |
分类号 |
G02B15/14 |
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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