Acousto-optic scanning system with fast non-linear scan
US6587255B2 · kind B2 · utility
9Cited by
10References
37Claims
0Family size
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Key dates
| Filing date | Dec 13, 2001 |
| Grant date | Jul 1, 2003 |
| Priority date | — |
| Expiry date | Dec 13, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/33
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An acousto-optic scanning system, which relies on two counter propagating acoustic waves with the same frequency modulation. This scheme completely suppresses the linear frequency chirp, and thus enables the generation of fast non-linear scans and non-constant linear scans. By changing the phase between the modulating signals, this scheme also provides fast longitudinal scans of the focal point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.