The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 25, 2003
Filed:
Jul. 31, 2001
Michael Bass, Orlando, FL (US);
Alexandra Rapaport, Winter Park, FL (US);
Hans Jennsen, Palm Harbor, FL (US);
University of Central Florida, Orlando, FL (US);
Abstract
A two and three dimensional display based on up conversion of near infrared light to the visible. The display medium is a transparent polymer containing particles of crystals doped with Yb and other rare earth ions. The Yb ions absorb light from a commercially available diode laser emitting near 975 nm and transfer that energy to the other dopant ions. Using a fluoride crystal host, NaYF , co-doped with Tm ions we obtain blue light at ˜480 nm, with Ho or Er ions we obtain green light at ˜550 nm and with Er we obtain red light at ˜660 nm. The display medium is also used with a preferred component layout with experimentation test data, along with applications for full color, high brightness, high resolution, displays.