Structure of high-resolution polygon laser scanner
US4764672A · kind A · utility
6Cited by
4References
1Claims
0Family size
Inventors
Key dates
| Filing date | Dec 16, 1986 |
| Grant date | Aug 16, 1988 |
| Priority date | — |
| Expiry date | Dec 16, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/1135
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An improved high-resolution laser scanner is able to make each mirror facet of a rotating polygon mirror generate two or more scanning beams through the use of beam splitting and projection by a beam splitter so as to increase the scanning speed and enhance the resolution quality. By means of adjustable reflectors, the two or more scanning beams are made to non-simultaneously impinge on the center of the same facet of the polygon mirror, wherefrom the scanning beams are focussed through a lens onto a photo-conductive drum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.