发明名称 LENS SYSTEM AND WIDE CONVERTER LENS
摘要 PROBLEM TO BE SOLVED: To provide a wide converter lens suitable for a zoom lens whose entire length is changed in zooming and having reduction magnification of about 0.8, and a lens system consisting of the wide converter lens and the zoom lens whose entire length is changed in zooming. SOLUTION: In the lens system consisting of the wide converter lens C and the zoom lens Z in order from an object side, the wide converter lens C can be attached to/detached from the zoom lens Z and has a function of shortening the focal distance of the zoom lens Z. The zoom lens Z has a moving lens group G1 nearest to the object side, and the moving lens group G1 moves toward the object side so as to reduce space between the wide converter lens C and the moving lens group G1 in the case of zooming from the wide angle end state to the telephoto end state of the zoom lens Z, then the lens system satisfies a specified conditional expression. COPYRIGHT: (C)2003,JPO
申请公布号 JP2003241094(A) 申请公布日期 2003.08.27
申请号 JP20020039125 申请日期 2002.02.15
申请人 NIKON CORP 发明人 SHIBAYAMA ATSUSHI
分类号 G02B15/20;G02B15/10;(IPC1-7):G02B15/20 主分类号 G02B15/20
代理机构 代理人
主权项
地址
您可能感兴趣的专利