Binary optical spectrum analyzer
US5461475A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 1994 |
| Grant date | Oct 24, 1995 |
| Priority date | — |
| Expiry date | Feb 2, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J3/0229
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus for analyzing a spectral signature, including: a light source; a spatial light modulator connected to the light source, the spatial light modulator modulating light from the light source in accordance with spatial features of the spectral signature; an optic system upon which modulated light from the spatial light modulator is incident, the optic system filtering the modulated light; a hologram illuminated with filtered, modulated light from the optic system, the hologram outputting an optical identification of the spectral signature; and a detector upon which the optical identification is incident, the detector detecting the optical identification.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.