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.sup.3+ and other rare earth ions. The Yb.sup.3+ 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.sub.4, co-doped with Tm.sup.3+ ions we obtain blue light at .about.480 nm, with Ho.sup.3+ or Er.sup.3+ ions we obtain green light at .about.550 nm and with Er.sup.3+ we obtain red light at .about.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.

Document Type

Patent

Patent Number

US 6,654,161

Application Serial Number

09/919,131

Issue Date

11-25-2003

Current Assignee

UCFRF

Assignee at Issuance

UCFRF

College

College of Optics and Photonics

Department

CREOL

Allowance Date

8-7-2003

Filing Date

7-31-2001

Assignee at Filing

UCFRF

Filing Type

Nonprovisional Application Record

Donated

no

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