Multi-level optical writer
US7576760B2 · kind B2 · utility
1Cited by
8References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2005 |
| Grant date | Aug 18, 2009 |
| Priority date | — |
| Expiry date | Aug 30, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/142
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A multi-level optical writer for writing an image by illumination to an optical-write-type recording medium laid with a display layer having a memory nature and a photoconductive layer, the optical writer includes: a holding portion holding the optical-write-type recording medium; and a write section for writing a multi-level image to the display layer by illuminating, to the photoconductive layer, image light having optical dots different in size in accordance with a gray level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.