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发明名称
Three-element objective lens with reduced spherical aberration and chromatic difference of spherical aberration
摘要
申请公布号
US2663222(A)
申请公布日期
1953.12.22
申请号
US19510212248
申请日期
1951.02.23
申请人
FARRAND OPTICAL CO., INC.
发明人
ROSIN SEYMOUR;BOTTALICO ANGELA M.
分类号
G02B9/04
主分类号
G02B9/04
代理机构
代理人
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