Endoscope
US4677471A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 1986 |
| Grant date | Jun 30, 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 is disclosed which includes a lens unit having a lens frame and lens frame cover and plurality of lenses attached to the lens frame, and image sensor unit located behind the lens frame. The image sensor unit comprises an electroconductive image sensor housing whose forward end portion is attached to the outer periphery of a rear end portion of the lens frame and which has a recess at the rear end portion, electric circuit section comprised of a solid-state image sensor fitted into the recess of the image sensor housing and having a plurality of lead-in pins and electric circuit components electrically connected to the lead-in pins, electroconductive shield pipe attached at a forward end portion to the outer periphery of the rear end portion of the image sensor housing, having a rearwardly extending rear end and including the whole electric circuit section therein, a cable fixing frame located behind an electric circuit section, fixed to the rear end portion of the shield pipe with an electroconductive pipe holder and having a through recess or recesses, and shielding wires inserted into the shield pipe and each having an outer cover, external conductors, and internal c…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.