Inertial stabilization of rotational optical scanners
US5982527A · kind A · utility
1Cited by
4References
10Claims
0Family size
Inventor
Key dates
| Filing date | May 28, 1998 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | May 28, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Method and apparatus are disclosed for stabilizing an optical scanner having a rotational axis and a substrate with facets which are generally pyramidal, the outer diameter of the facets being proximate to a base plane which is generally perpendicular to the axis. The method includes adapting the scanner to reduce the inertial deformation of the facets during high speed rotation of the scanner by shaping the substrate beyond the base plane such that during rotation it is substantially inertially symmetric about the base plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.