Minimization of differential bow in multiple beam scanning optical systems
US5517330A · kind A · utility
18Cited by
6References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 25, 1994 |
| Grant date | May 14, 1996 |
| Priority date | — |
| Expiry date | Oct 25, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/0031
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A raster scanning system is disclosed which utilizes a post polygon optics which generates a field curvature to substantially reduce a differential bow. The post polygon optics of this invention comprises a first lens, a second lens and a wobble correction mirror. The second lens and the wobble correction mirror generate a field curvature to reduce the differential bow and the combination of the first lens, second lens and the wobble mirror correction minimizes the generated field curvature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.