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:
Aug. 24, 1993
Filed:
Nov. 12, 1992
Hideshi Kawasaki, Atsugi, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A light emitting device comprises a substrate, a reflection mirror formed on the substrate, the reflection mirror comprising alternate lamination of amorphous or polycrystalline layers, having refractive indices different from each other; a crystal formation plane formed on the reflection mirror, the crystal formation plane comprising a nucleus non-formation plane having a low nucleus formation density and a nucleus formation plane disposed adjacent to the nucleus non-formation plane and having a higher nucleus formation density than that of said nucleus non-formation plane and a sufficiently small area to allow growth of a crystal thereon by only a single nucleus, and a light emitting area of single crystal formed on the crystal formation plane.