Scanning optical apparatus having beam scan controller
US5627670A · kind A · utility
17Cited by
10References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1995 |
| Grant date | May 6, 1997 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/04796
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A scanning optical apparatus comprises a light source unit, scanning means for deflecting a beam from said light source unit and scanning a scanning surface with the beam, means for detecting the beam scanned on said scanning surface and control means for controlling the beam scanned on said scanning surface in a direction perpendicular to said scanning surface on the basis of a magnitude and a change as a function of time of a signal output from said detecting means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.