发明名称 |
Taking lens and camera equipped with the same |
摘要 |
A taking lens consisting of a positive power single lens element positioned behind an aperture stop of a photographic camera having an image format of 16.7x30.2 mm, and having an object side surface which includes an annular marginal section surrounding a core section defined by an effective aperture thereof. The taking lens satisfies the following conditions:Dr<1.0Dc<0.75Ds<3.0where Dr is the radial width of the annular margin; Dc is the thickness of the core section in an extension of a straight line connecting the outer periphery of the core section and the center of curvature of an image side surface of the single lens element; and Ds is the air space between the image side surface and the aperture stop.
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申请公布号 |
US6052233(A) |
申请公布日期 |
2000.04.18 |
申请号 |
US19980123479 |
申请日期 |
1998.07.28 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
KOIKE, KAZUMI |
分类号 |
G03C3/00;G02B3/00;G02B9/02;G03B19/04;(IPC1-7):G02B3/00 |
主分类号 |
G03C3/00 |
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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