Endoscope image unit with circuit board having a hole therethrough
US5797837A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 29, 1996 |
| Grant date | Aug 25, 1998 |
| Priority date | — |
| Expiry date | Aug 29, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/555
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An assembled body of an electronic endoscope which is capable of reducing the diameter of the endoscope and simplifying the structure thereof. The assembled body comprises an imaging device provided with a color filter and a microlens on the imaging plane, and an objective optical member connected to the imaging device. A circuit board with a wiring pattern and a through hole formed thereon and therein is inserted and adhered between the imaging plane of the imaging device and a prism as a part of the objective optical member. The terminals on the imaging device are connected to the terminals on the circuit board by contact bonding. Since the through hole in the circuit board forms an air gap on the imaging plane, it is possible to protect the color filter and the microlens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.