Optically written display

USRE42184E1 · kind E1 · reissue

Assignee

• Research Foundation of the University of Central Florida, Inc. · US

Inventors

• Michael Bass · Orlando, US
• Jason M. Eichenholz · Orlando, US
• Alexandra Rapaport · Orlando, US

Key dates

• Filing date: May 23, 2007
• Grant date: Mar 1, 2011
• Expiry date: May 23, 2027

Classification

• Technology area (CPC —): General

Abstract

Two, three dimensional color displays having uniform dispersion of red, green and blue visible light emitting micron particles. Pumping at approximately 976 nm can generate green and red colors having an approximately 4% limit efficiency. One source can generate three colors with approximately limit efficiency. Modulators, scanners and lens can move and focus laser beams to different pixels forming two dimensional color images. Displays can be formed from near infrared source beams that are simultaneously split and modulated with micro electro mechanical systems, spatial light modulators, liquid crystal displays, digital micromirrors, digital light projectors, grating light valves, liquid crystal silicon devices, polysilicon LCDs, electron beam written SLMs, and electrically switchable bragg gratings. Pixels containing: Yb,Tm:YLF can emit blue light, Yb,Er(NYF) can emit green light, and Yb,Er:KYF and Yb,Ef:YF3 can emit red light.