发明名称 Wide-angle lens
摘要 The present invention is directed toward a wide-angle lens. Because of a small quantity (two) of lens elements, the wide-angle lens facilitates size and weight reduction and permits low-cost manufacture. The lens is made from plastic, which permits further cost reduction. The lens is particularly useful when employed in CCD cameras.
申请公布号 US6031670(A) 申请公布日期 2000.02.29
申请号 US19960757192 申请日期 1996.11.27
申请人 SANKYO SEIKI MFG. CO., LTD. 发明人 INOUE, TOSHIYUKI
分类号 G02B13/06;(IPC1-7):G02B13/18 主分类号 G02B13/06
代理机构 代理人
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