Light detection device
US6232591A · kind A · utility
1Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1999 |
| Grant date | May 15, 2001 |
| Priority date | — |
| Expiry date | Jul 29, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/3011
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A light detection device has a biasing transistor (1) arranged to provide a bias current and a reverse biased transistor. The reverse biased transistor has a drain terminal (6) coupled via a high impedance resistor (4) to the supply voltage. Incident visible light is detected by a voltage drop at the drain electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.