Close contact type image sensor having integrally moded reflective surfaces
US5780840A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 1996 |
| Grant date | Jul 14, 1998 |
| Priority date | — |
| Expiry date | Jul 9, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J1/0271
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A close contact type image sensor having an improved structure and manufacturing process utilizes a body having integral reflective surfaces to eliminate assembly steps. The body and reflective surfaces are formed using different plastic materials in a single injection molding process. A material having highly reflective characteristics is used for the reflective surfaces. A light source is aligned with the reflective surface by pins in the sensor body which are inserted into holes in the light source. Alternatively, the light source can be mounted on a printed circuit board which has holes that are aligned with the pins. A self focusing lens is mounted in the body to focus reflected light onto a light detector which is mounted on a printed circuit board. A transparent cover piece is mounted in an opening in the body. Flat spring clips secure the printed circuit board to the body of the sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.