Multiple beam optical memory system with solid-state lasers
US5808986A · kind A · utility
29Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 8, 1996 |
| Grant date | Sep 15, 1998 |
| Priority date | — |
| Expiry date | Jan 8, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2007/13727
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical memory system employing multiple reading/writing optical beams from solid state lasers for simultaneously reading from a writing to multiple tracks of optical media to allow reading/writing of closely spaced adjacent tracks, a number a feature are disclosed. These include using vertical writing surface emitting lasers forming an array of beam sources, using lenslets associated with array, modulating the beams, and providing various optical elements and combinations of optical elements to compensate for beam and system imperfections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.