Power calibration system
US6842711B2 · kind B2 · utility
4Cited by
1References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2003 |
| Grant date | Jan 11, 2005 |
| Priority date | — |
| Expiry date | Jul 10, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/1267
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a high precision, low cost laser power calibration system. First, the photo signals output from a standard photo diode are received by a photo calibration system; then a set of standards consisting of the corresponding current signals and the power signals are saved in an EEPROM. Finally, the photo diode to be calibrated can be calibrated using the present system in accordance with the calibration standards.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.