Two-dimensional scanning device
US4329012A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 8, 1980 |
| Grant date | May 11, 1982 |
| Priority date | — |
| Expiry date | Jan 8, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/127
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A two-dimensional scanning device constructed with first deflector to deflect a collimated beam, second deflector to deflect an incident beam in the direction orthogonally intersecting the deflecting direction of the first deflector, a scanning lens interposed between the first and second deflectors, a scanning plane to focus a scanning beam from the scanning lens through the second deflector, and an expedient to obtain a distortion-free two-dimensional scanning pattern on the scanning plane by rotating the scanning plane around a rotational axis in the direction orthogonally intersecting the deflecting direction of the second deflector in synchronism with rotation of the second deflector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.