×

Full color upconversion display

  • US 5,003,179 A
  • Filed: 05/01/1990
  • Issued: 03/26/1991
  • Est. Priority Date: 05/01/1990
  • Status: Expired due to Term
First Claim
Patent Images

1. A full color upconversion display, comprising:

  • an upconversion screen, comprising a host material and one or more rare earth ion dopant materials, said one or more dopant materials being responsive to incident infrared radiation such that the upconverting screen emits visible light of a selected red, green or blue color when excited by infrared radiation of appropriate wavelength and intensity;

    means for exciting said upconversion screen in a spatially selective manner so as to define a particular color image by excitation at a desired image pixel location with infrared radiation of suitable wavelength and intensity so as to emit visible light of a desired color.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×