Patent · US Expired

Method of, and apparatus for photographically making positive pictures

US4263000A · kind A · utility

1Cited by

7References

4Claims

0Family size

Assignee

Agfa-Gevaert NV · BE

Inventors

Otto Stemme · Munich, DE
Peter Lermann · Feldkirchen-Westerham, DE
Volkmar Stenzenberger · Unterhaching, DE
Werner Went · Leverkusen, DE
Eberhard Herzig · Cologne, DE
Friedrich-Ludolph Hoesch · Leichlingen, DE

Key dates

Filing date	Apr 24, 1979
Grant date	Apr 21, 1981
Priority date	—
Expiry date	Apr 24, 1999

Classification

Technology area (CPC G)Physics
CPC primaryG03B21/134
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The invention concerns a method of, and an apparatus for, photographically making positive pictures from individual frames of motion-picture films, film strips and microfilms. The image from a respective selected film frame is exposed onto a self-developing ("instant-picture") film sheet which is then developed to produce a positive paper picture of this image.

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