发明名称 |
IMAGE-FORMING LENS, AND IMAGING APPARATUS AND INFORMATION DEVICE USING THE IMAGE-FORMING LENS |
摘要 |
An image-forming lens consists of: from an object side to an image side in the following order, a first lens group with a positive refractive power; an aperture stop; and a second lens group with a positive refractive power, and the second lens group includes: from the object side to the image side in the following order, a second F lens group with a positive refractive power in which a biconvex lens and a biconcave lens are cemented to each other; a second M lens group having a concave shape on a surface on a most object side and a convex shape on a surface on a most image side; and a second R lens group of a positive lens.
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申请公布号 |
US2013194681(A1) |
申请公布日期 |
2013.08.01 |
申请号 |
US201313803112 |
申请日期 |
2013.03.14 |
申请人 |
OHASHI KAZUYASU;KUBOTA TAKASHI |
发明人 |
OHASHI KAZUYASU;KUBOTA TAKASHI |
分类号 |
G02B13/00 |
主分类号 |
G02B13/00 |
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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