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:
Jun. 08, 2021
Filed:
Jun. 24, 2020
Nichia Corporation, Anan, JP;
Mamoru Imada, Anan, JP;
NICHIA CORPORATION, Anan, JP;
Abstract
An upper face of a light guide includes a projected portion that has a planar face, and a wall portion that surrounds the projected portion, wherein a top part of the wall portion is positioned higher than the planar face. A lower face of the light guide has a recessed portion. A light transmitting part that has a lower refractive index than a reflective index of the light guide is disposed on the projected portion in an area surrounded by the wall portion. A light source is disposed in the recessed portion. The projected portion has an oblique face which is oblique to the planar face and disposed between the planar face and the wall portion. In a plan view of the planar face of the projected portion, the oblique face of the projected portion is positioned outward of a lateral face of the recessed portion at least in part.