发明名称 |
Illuminating optical system for endoscopes |
摘要 |
An endoscope illuminating optical system comprising a light guide in which the distribution of optical fibers on the exit end surface is uneven, a positive lens system placed in front of the exit end of the light guide and a single fiber placed between the positive lens system and exit end to improve the light distribution or to eliminate the uneven illumination produced by the parallax of the illuminating optical system and observing optical system.
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申请公布号 |
US4580552(A) |
申请公布日期 |
1986.04.08 |
申请号 |
US19850712472 |
申请日期 |
1985.03.18 |
申请人 |
OLYMPUS OPTICAL CO., LTD. |
发明人 |
NISHIOKA, KIMIHIKO;YAMASHITA, NOBUO |
分类号 |
A61B1/00;A61B1/07;G02B6/04;G02B23/24;G02B23/26;(IPC1-7):A61B1/06 |
主分类号 |
A61B1/00 |
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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