Dust protection device for an image sensor
US4991949A · kind A · utility
7Cited by
2References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 23, 1990 |
| Grant date | Feb 12, 1991 |
| Priority date | — |
| Expiry date | Jan 23, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/02497
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A dust protection device for an image sensor includes a housing in which the image sensor is mounted. The housing includes an aperture for allowing reflected light from the object being viewed to enter the housing and impinge upon the image sensor. A trasparent film is mounted across the aperture for prefenting dust from entering the housing. The transparent film is selectively movable for providing a continuous clean surface across the aperture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.