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发明名称
WIDE RANGE VARIABLE FOCUS OPJECTIVE HAVING ASPHERICAL SURFACES
摘要
申请公布号
GB2062280(B)
申请公布日期
1984.02.29
申请号
GB19800030829
申请日期
1980.09.24
申请人
PHILIPS NV
发明人
分类号
G02B15/20;G02B13/18;G02B15/14;(IPC1-7):G02B15/16
主分类号
G02B15/20
代理机构
代理人
主权项
地址
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