Linear beam scanning apparatus especially suitable for recording data on light sensitive film
US4337994A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 18, 1980 |
| Grant date | Jul 6, 1982 |
| Priority date | — |
| Expiry date | Jun 18, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A linear beam scanning apparatus especially suitable for recording data on light sensitive film is disclosed herein. This apparatus starts with a modulated beam of collimated light and utilizing a suitable device, preferably a holographic grating scanner, converts this stationary beam to a first continuously scanning beam of light having a particular cross-sectional segment thereof which repeatedly moves, that is scans, from a first point to a second point along an arcuate path. This arcuately scanning beam is then converted by optical means to a second continuously scanning beam which converges to a point and which repeatedly moves, that is scans, from one end of a straight line path to its other end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.