Laser scanning unit having a sensor for detecting both start-of-scan and end-of-scan positions of a corresponding laser beam
US7152798B2 · kind B2 · utility
2Cited by
2References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2004 |
| Grant date | Dec 26, 2006 |
| Priority date | — |
| Expiry date | Dec 25, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/022
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser scanning unit is provided. It comprises a housing; a scanning device; a pre-scan assembly generating a light beam and directing the light beam toward the scanning device; and a post-scan optical assembly receiving a scanning beam reflected from the scanning device and causing the beam to traverse a photoconductive member along a scan path. The post-scan optical assembly comprises a sensor for detecting the beam at a start-of-scan location and an end-of-scan location along the scan path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.