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:
Mar. 24, 2026
Filed:
Jun. 03, 2021
Sony Group Corporation, Tokyo, JP;
Kentaro Hayashi, Tokyo, JP;
Tatsushi Hamaguchi, Tokyo, JP;
Masamichi Ito, Kumamoto, JP;
Rintaro Koda, Tokyo, JP;
SONY GROUP CORPORATION, Tokyo, JP;
Abstract
A light-emitting device includes: a light-emitting element array including a plurality of light-emitting elements arranged; and a dummy concave mirror section surrounding the light-emitting element array, and the light-emitting elements each include a stacked structure including a stack of a first compound semiconductor layer, an active layer, and a second compound semiconductor layer, a first light reflection layer formed on a base part surface, and a second light reflection layer. A first convex part is formed in a portion of the base part surface in which the first light reflection layer functioning as a concave mirror is formed, with respect to a second surface of the first compound semiconductor layer, and a second convex part is formed in a portion of an extending part of the base part surface in which the dummy concave mirror section is formed, with respect to the second surface of the first compound semiconductor layer.