Internal drum plotter
US4853709A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1987 |
| Grant date | Aug 1, 1989 |
| Priority date | — |
| Expiry date | Sep 29, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/0607
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An internal drum plotter including a laser source producing a laser beam output, apparatus for modulating the laser beam output to apply information content thereto, apparatus for supporting laser recording material in a generally circular cylindrical configuration about a cylinder axis and scanning apparatus for receiving the modulated laser beam and reflecting it onto the laser recording material, the scanning apparatus including a stabilized reflector arranged for rotation about the cylinder axis for reflecting the modulated laser beam directly onto the laser recording material, wherein the stabilized reflector is insensitive to wobble in the position thereof in directions perpendicular to the cylinder axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.