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:
May. 29, 2007
Filed:
Sep. 10, 2004
Carole Schwach, Ribeauville, FR;
Claude Charles Aime Weisbuch, Paris, FR;
Steven P. Denbaars, Goleta, CA (US);
Henri Benisty, Palaiseau, FR;
Shuji Nakamura, Santa Barbara, CA (US);
Carole Schwach, Ribeauville, FR;
Claude Charles Aime Weisbuch, Paris, FR;
Steven P. DenBaars, Goleta, CA (US);
Henri Benisty, Palaiseau, FR;
Shuji Nakamura, Santa Barbara, CA (US);
The Regents of the University of California, Oakland, CA (US);
Abstract
A white, single or multi-color light emitting diode (LED) includes a mirror for reflecting photons within the LED; a first active region, adjacent the mirror, including one or more current-injected layers for emitting photons when electrically biased in a forward direction; a second active region, adjacent the first active region, including one or more optically-pumped layers for emitting photons, wherein the optically-pumped layers are optically excited by the photons emitted by the current-injected layers, thereby recycling guided modes; and an output interface, adjacent the second active region, for allowing the photons emitted by the optically-pumped layers to escape the LED as emitted light.