发明名称 |
Zoom optical system for microscopes |
摘要 |
An optical compensation type zoom optical system for microscopes comprising a first through fourth lens groups, and is so adapted as to displace said first and third lens groups for zooming while said second and fourth lens groups are kept fixed, said optical system being so designed as to assure little deviation of image planes during zooming operation and favorably correct various aberrations.
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申请公布号 |
US4126377(A) |
申请公布日期 |
1978.11.21 |
申请号 |
US19770771802 |
申请日期 |
1977.02.24 |
申请人 |
OLYMPUS OPTICAL CO., LTD. |
发明人 |
GOTO, ASTUO |
分类号 |
G02B15/15;G02B21/02;G02B21/22;G02B25/00;(IPC1-7):G02B15/14 |
主分类号 |
G02B15/15 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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