Endoscope having internal pressure communication means
US4706654A · kind A · utility
22Cited by
8References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 5, 1986 |
| Grant date | Nov 17, 1987 |
| Priority date | — |
| Expiry date | Aug 5, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/555
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An endoscope includes an operation section and an insertion section extending from the operation section. An image-pickup unit is disposed in the extended end portion of the insertion section. The unit has an objective optical system, a solid-state image-pickup device, and a case accommodating the optical system and image-pickup device. The interior of the case communicates with the interior of the endoscope.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.