Low cost polametric detector
US7372568B1 · kind B1 · utility
20Cited by
2References
23Claims
0Family size
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Key dates
| Filing date | Jun 22, 2006 |
| Grant date | May 13, 2008 |
| Priority date | — |
| Expiry date | Jun 22, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J1/0477
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Polarimeters based on transversal division of the input beam and use of different polarization elements in different polarization states to change polarizations of different portions of the input beam so that the power levels of the different portions of the input beam can be measured to determine the polarization state of the input beam. A wedged substrate can be used to direct the different portions of the input beam at different directions and a lens can be used to focus these different portions at different locations at a plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.