Patent search ap:("FARRAND OPTICAL CO INC") AND inv:"BOTTALICO ANGELA M" Page 1

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发明授权
Three-element objective lens with reduced spherical aberration and chromatic difference of spherical aberration 失效
Title translation: 减少球面像差和球面像差差的三元物镜

公开(公告)号：US2663222A

公开(公告)日：1953-12-22

申请号：US21224851

申请日：1951-02-23

Applicant: FARRAND OPTICAL CO INC

Inventor： SEYMOUR ROSIN , BOTTALICO ANGELA M

IPC: G02B9/04

CPC classification number: G02B9/04

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