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:
Jan. 23, 2024
Filed:
Apr. 06, 2021
Nichia Corporation, Anan, JP;
Yoshinori Shinohara, Chino, JP;
Kosuke Gomi, Suwa-gun, JP;
NICHIA CORPORATION, Anan, JP;
Abstract
A light emitting device includes multiple light source parts each including at least one first light source part and at least one second light source part, each including a light emitting element and a light-guiding member to guide light of the light emitting element. Each light-guiding member has a taper shape narrowing toward the light emitting element. Light from each light source part satisfies condition of θ≤α≤tan×2 tan θ. (θ is an angle of a straight line connecting a position on the light-irradiation surface having an illuminance of at least one-half of that at center position and the center of the light emitting surface of the first light source part, and α is an angle of a straight line connecting a center of a light-irradiation region on a light-irradiation surface and a center of the light emitting surface of the second light source part.)
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile