发明名称 |
Lens system |
摘要 |
A taking lens system for a camera includes a positive meniscus type of single component bi-aspherical lens and an aperture stop disposed facing a convex aspherical surface of the single component bi-aspherical meniscus lens. The single component bi-aspherical lens is designed and adapted such that a ratio of a radius of curvature of a reference concave spherical surface of the concave aspherical surface to a radius of curvature of a reference convex spherical surface of the convex aspherical surface is between 1.0 and 2.5.
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申请公布号 |
US5365377(A) |
申请公布日期 |
1994.11.15 |
申请号 |
US19930077995 |
申请日期 |
1993.06.18 |
申请人 |
FUJI PHOTO OPTICAL CO., LTD. |
发明人 |
SATO, KENICHI |
分类号 |
G02B13/18;(IPC1-7):G02B13/18 |
主分类号 |
G02B13/18 |
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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