The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 05, 1979
Filed:
Apr. 17, 1978
Applicant:
Inventors:
Michael T Gale, Wettswil, CH;
Karl Knop, Zurich, CH;
Assignee:
RCA Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ; G03B / ;
U.S. Cl.
CPC ...
355 19 ; 355 32 ; 355 71 ; 355 77 ;
Abstract
A group of separate large-size color or black-and-white pictures to be recorded on a master as very finely-screened (e.g. 10 micrometer period) micropictures in a given format, such as microfiche, are first reduced to a continuous-tone first recording at an intermediate size on a medium, such as 70 millimeter film. Then a relatively fine-screened (e.g. 40 micrometer period), high-contrast second recording, made from the first recording by contact printing, is reduced to micropicture size in the given format.