Integrated camera and illumination device having a regulated current
US6741286B2 · kind B2 · utility
23Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2002 |
| Grant date | May 25, 2004 |
| Priority date | — |
| Expiry date | Aug 7, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/555
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention (with reference to FIG. 2a) relates to an integrated camera and illumination device. The device comprises illumination apparatus having a plurality of light emitting diodes (17) arranged in a circuit which regulates current output by the circuit to an approximately constant level. The device comprises camera apparatus having a CMOS sensor (12) in a circuit supplied by the current regulated by the illumination apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.