Laser beam scanning device and method including light intensity adjustment
US5859659A · kind A · utility
7Cited by
9References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 16, 1996 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | Jul 16, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/40037
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A laser scanning device emits a scanning laser beam which scans a predetermined surface to be scanned to form an image consisting of a plurality of pixels on the surface. The laser scanning device determines the intensity of the laser beam for each pixel of an image to be formed, and executes a feed-back control of the laser diode so that the intensity of the laser beam for each pixel accurately corresponds to the gradation level thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.