Endoscope illuminating optical system device
US4802460A · kind A · utility
52Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1987 |
| Grant date | Feb 7, 1989 |
| Priority date | — |
| Expiry date | Jun 2, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0008
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An endoscope illuminating optical system device wherein a light guide inserted through an insertable part of an endoscope and transmitting an illuminating light to an observing system is formed to be noncircular as a whole on the exit end surface at the front end and an illuminating optical member formed to be of a cross-section as a whole substantially of the same shape and size as of the exit end surface of the light guide and distributing the illuminating light projected out of the exit end surface of the light guide to an object to be observed is provided in a position opposed to the exit end surface of the light guide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.