Patent · US Expired

Photographic printing apparatus with means for generation of video signals

US6504624B1 · kind B1 · utility

1Cited by
12References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 16, 1996
Grant dateJan 7, 2003
Priority date
Expiry dateOct 16, 2016

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03B27/735
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

Apparatus is disclosed for acquiring video signals with high resolution in the optical path of a photographic printing device for point-by-point color video signal generation by means of a video image sensor which receives the original negative image. For generation of the video signals, a sufficiently high-resolution black and white video sensor (27) is used. The three color separations are delivered separately to the video sensor by means of a plurality of color filters (4, 5, 6) which are present for printer illumination control and are brought consecutively into their active setting.

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