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:
Dec. 02, 1997
Filed:
Apr. 08, 1996
Applicant:
Inventors:
Andrew T Hunter, Woodland Hills, CA (US);
Jennifer J Zinck, Calabasas, CA (US);
K C Fuller, Los Angeles, CA (US);
K W Kirby, Calabasas, CA (US);
Assignee:
HE Holdings Inc., Los Angeles, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01S / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
372 96 ; 372 43 ; 372 98 ; 372 99 ; 257 14 ; 437 51 ; 437129 ;
Abstract
An epitaxial structure suitable for use in a light-emitting device having at least one operating frequency in the visible range, and a method for providing the same. The epitaxial structure includes a semiconductor substrate which is transparent at the operating frequency, an output mirror lattice-matched to the substrate and comprising at least one pair of semiconductor layers having substantially different refractive indices and an active region lattice-matched to the substrate and having a bandgap narrower than the bandgap of the output mirror.