Holographic scanning system utilizing a scan linearization lens
US4508421A · kind A · utility
2Cited by
7References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 27, 1983 |
| Grant date | Apr 2, 1985 |
| Priority date | — |
| Expiry date | Jul 27, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/106
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical scanning system utilizing a spinner component having plane diffraction gratings thereon and a focusing lens adapted to compensate for linearization errors at the recording plane. The lens includes optical elements which compensate for the 3rd and 5th order coefficients of distortion associated with this type of diffraction scanning component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.