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. 02, 2022
Filed:
May. 15, 2020
Stanley Electric Co., Ltd., Tokyo, JP;
Kyotaro Koike, Tokyo, JP;
Ji-Hao Liang, Tokyo, JP;
Mitsunori Harada, Tokyo, JP;
Kaori Tachibana, Tokyo, JP;
Shunya Ide, Tokyo, JP;
Hiroshi Kotani, Tokyo, JP;
Satoshi Ando, Tokyo, JP;
STANLEY ELECTRIC CO., LTD., Tokyo, JP;
Abstract
Provided is a light-emitting device having a plurality of light-emitting elements with high operation stability and light extraction efficiency. The light-emitting device includes: a light-emitting element; a translucent member which is disposed on the light-emitting element and has a columnar first portion having a bottom surface opposed to an upper surface of the light-emitting element, a second portion formed continuously with the first portion on the first portion and narrowed upward, and a columnar third portion formed continuously with the second portion on the second portion; and a reflective member configured to cover the side surfaces of the translucent member. In this light-emitting device, the height of the first portion of the translucent member in a direction perpendicular to the bottom surface thereof is ⅙ or more the height of the translucent member in the direction perpendicular to the bottom surface.