Sensor having a plurality of active areas
US6828559B2 · kind B2 · utility
2Cited by
8References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2002 |
| Grant date | Dec 7, 2004 |
| Priority date | — |
| Expiry date | Nov 26, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B13/191
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A sensor including at least two active areas for receiving light energy and a resistive layer disposed on each of the at least two active areas for providing a pair of current signals corresponding to a position of light energy of a predetermined wavelength striking the active area. The two or more active areas are electrically isolated from each other and operate independent of each other. Preferably, the two or more active areas are electrically isolated with silicon dioxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.