Attenuated light beam peak frequency modification
US10095055B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2016 |
| Grant date | Oct 9, 2018 |
| Priority date | — |
| Expiry date | Apr 4, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2003/2859
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
According to an example, a plurality of pixels of a modulator upon which an input light beam impinges may be modulated to apply a first asymmetrical attenuation pattern on the input light beam and to direct a first attenuated light beam from the modulator and a first power level of the first attenuated light beam may be measured. The plurality of pixels may be modulated to apply a second asymmetrical attenuation pattern on the input light beam and to direct a second attenuated light beam from the modulator, and a second power level of the second attenuated light beam may be measured. A difference between the first power level and the second power level may be calculated and a modified peak frequency for an attenuated light beam from the calculated difference may be calculated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.