Patent · US Expired

Color image reproducing apparatus

US4490739A · kind A · utility

5Cited by
1References
21Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 3, 1983
Grant dateDec 25, 1984
Priority date
Expiry dateOct 3, 2003

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N9/22
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A color image reproducing apparatus having particular utility as a color view finder for a color image pick-up apparatus includes a black and white cathode ray tube for producing a black and white image in response to red, green and blue primary color control signals sequentially supplied thereto; a color filter including red, green and blue horizontal color filter stripes adapted to transmit light of a red, green and blue color, respectively, and arranged vertically in the order of green, blue, red, green, red, blue and green stripes; and electronic shutter for sequentially permitting the transmission of light from the black and white image through the red, green and blue color filter stripes, corresponding to the supply of the red, green and blue primary color control signals to the cathode ray tube, to form a composite color image at a predetermined position; and an objective lens for projecting the black and white image transmitted through the electronic shutter and the color filter stripes to the predetermined position.

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