Patent · US Expired

Optical printer

US4278981A · kind A · utility

8Cited by

2References

4Claims

0Family size

Assignee

U.S. Philips Corporation · US

Inventors

Bernhard Hill · Hamburg, DE
Klaus-Peter Schmidt · Bonn, DE
Gerhard Graf · Dillingen/Saar, DE

Key dates

Filing date	Mar 16, 1979
Grant date	Jul 14, 1981
Priority date	—
Expiry date	Mar 16, 1999

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41J2/465
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A template to form the characters to be written is placed between the light source and the record carrier. The template is formed as a light-switching mask the switching elements of which can be controlled by a character generator. The switching elements may be arranged separately beside each other or in matrix form in accordance with the fact whether the characters are to be written per line or per page. Printing in color is also possible. The optical printer combines the functions of a printer, a picture memory and a display.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.