Apparatus for recording image including an afocal optical system
US5099358A · kind A · utility
9Cited by
12References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 10, 1990 |
| Grant date | Mar 24, 1992 |
| Priority date | — |
| Expiry date | Jan 10, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B13/22
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Laser beams corresponding to an image are directed through an afocal optical system such that chief rays of the laser beams outgoing from the system are substantially perpendicular to a recording surface and such that beam waists of the laser beams are approximately located at the recording surface. Thus, the image can be recorded on the recording surface with high picture quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.