发明授权
- 专利标题: Wide-conversion lens and a zoom lens with it
- 专利标题(中): 宽转换镜头和变焦镜头
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申请号: US114946申请日: 1993-09-01
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公开(公告)号: US5555132A公开(公告)日: 1996-09-10
- 发明人: Katsu Yamada , Shusuke Ono
- 申请人: Katsu Yamada , Shusuke Ono
- 申请人地址: JPX Osaka-fu
- 专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址: JPX Osaka-fu
- 优先权: JPX4-286494 19921026
- 主分类号: G02B15/10
- IPC分类号: G02B15/10 ; G02B15/02
摘要:
A wide-conversion lens for attachment to a master lens system consists of a bi-negative first lens in a object side and a bi-positive second lens in a master lens side, and in the second lens its radii of curvature of both surfaces are selected the same.
公开/授权文献
- US6120919A Magnetic head 公开/授权日:2000-09-19
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