Dynamic focusing apparatus for an optical imaging system using a deformable mirror
US6053409A · kind A · utility
147Cited by
39References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1997 |
| Grant date | Apr 25, 2000 |
| Priority date | — |
| Expiry date | Jun 24, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2207/1013
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A focus changing apparatus for an optical scanner which increases the depth of the field of the optical scanner. The focus changing apparatus is optically located between a laser source and a scan mirror and includes a plurality of alternating curved and flat facets. Alternatively, a piezoelectric deformable mirror may be optically located between the laser source and a flat faceted scan mirror to provide for increased depth of field of the optical scanner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.