High output reflective optical correlator having a folded optical axis using grayscale spatial light modulators
US6163403A · kind A · utility
16Cited by
10References
2Claims
0Family size
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Key dates
| Filing date | Jul 30, 1998 |
| Grant date | Dec 19, 2000 |
| Priority date | — |
| Expiry date | Jul 30, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/46
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An optical correlator system having a plurality of both active and passive reflective optical components between a source of electromagnetic radiation, such a visible coherent light, and an output detector array in a planar support body along a folded optical axis beam path within the body uses a grayscale spatial light modulator as the input sensor and the correlating filter to provide enhanced optical detection of an unknown object at a CCD detector array.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.