Patent · US Expired

Reflex copying process onto light-sensitive recording materials

US4293633A · kind A · utility

1Cited by
3References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 23, 1979
Grant dateOct 6, 1981
Priority date—
Expiry dateNov 23, 1999

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03C5/10
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

Reflex copying of original materials, normally having an opaque background, onto light-sensitive vesicular imaging materials wherein exposure to light is effected through a screen which transmits the incident light in separate bundles of light rays.

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