Method and device scanning a two-dimensional brush through an acousto-optic deflector (AOD) having an extended field in a scanning direction
US8896909B2 · kind B2 · utility
4Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2011 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | May 7, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/70358
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The technology disclosed relates to improved acousto-optic deflectors (AODs). In particular, it relates to compensation for subtle effects not previously addressed by AOD designers. A shifting center of gravity is described and addressed using advanced power equalisation strategies. Denser writing brushes are provided by using a two-dimensional array of beams with corrections for factors such as angle of incidence at the AOD interface. The compensation and dense brush features can be used separately or in combination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.