Optical achromatization for acoustooptic deflectors
US4150880A · kind A · utility
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9Claims
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Key dates
| Filing date | Jun 13, 1977 |
| Grant date | Apr 24, 1979 |
| Priority date | — |
| Expiry date | Jun 13, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/33
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An acoustooptic deflection cell diffracts a multi-color beam into a plurality of different mono-color beams of distinct scan angles. An optical system intercepts the diffracted light beams, equalizes the differenct scan angles and realigns the beams to register at an image plane. Equalization of the scan angles may be accomplished by a prism system, while realignment may be done with a mirror system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.