Endoscope system and lens unit
US8547424B2 · kind B2 · utility
12Cited by
4References
8Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Oct 20, 2008 |
| Grant date | Oct 1, 2013 |
| Priority date | — |
| Expiry date | Aug 1, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2215/0575
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An endoscope system has a light source apparatus and an endoscope including an illumination optical system and an objective optical system. At least the objective optical system of the endoscope is provided with an adjustable diaphragm, and in a light path in one of the light source apparatus, the illumination optical system, and the objective optical system, an insertable/retractable filter for observation for special light is provided. The adjustable diaphragm performs a closing operation or an opening operation only when the filter for observation for special light is inserted into the light path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.