Two-dimensional scanning apparatus
US4318582A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 1980 |
| Grant date | Mar 9, 1982 |
| Priority date | — |
| Expiry date | Jan 3, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/113
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A two-dimensional scanning apparatus is disclosed which includes first deflector for deflecting a collimated beam, second deflector for deflecting the incident beam in the direction orthogonal to the direction of deflection by the first deflector, a scanning lens disposed between the first and second deflector, a surface to be scanned on which an image of the scanning beam is formed through the second deflector and a device for moving the scanned surface in the direction orthogonal to the surface in synchronism with the rotational motion of the second deflector so as to obtain a two-dimensional, distortionless scanning pattern on the scanned surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.