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经营范围
发明名称
Zoom lens employing refractive and diffractive optical elements
摘要
申请公布号
EP0549146(B1)
申请公布日期
1996.06.26
申请号
EP19920310875
申请日期
1992.11.27
申请人
HUGHES AIRCRAFT COMPANY
发明人
CHEN, CHUNGTE W.
分类号
G02B15/16;(IPC1-7):G02B15/16
主分类号
G02B15/16
代理机构
代理人
主权项
地址
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