Electro-optical printing system
US3952311A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 24, 1972 |
| Grant date | Apr 20, 1976 |
| Priority date | — |
| Expiry date | Apr 24, 1992 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/19542
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A high speed, electro-optical printing system for producing images, particularly images of type characters, on sheet material. A radiation sensitive, image-recording material preferably in sheet form is moved at a controlled speed past an array of relatively small, emitters of radiation actinic to the image-recording material. The emitters are electrically energized selectively and for varying durations to expose and produce images in the image-recording material as it moves past the emitters. The emitters may include light or heat emitting diodes or the ends of optical fibers each optically coupled at its other end with an actinic radiation source. The image-recording medium is carried on a sheet material and the system includes means for moving the image-recording sheet past the array of emitters and a processor for treating the exposed sheet to form a stable, visible image. A computer control system may include a memory containing programs for type characters thus offering the system utility as a high speed printer or it may provide for converting into printed form, electrical signals conveying graphic information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.