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:
Apr. 01, 2025
Filed:
Dec. 27, 2022
Citizen Electronics Co., Ltd., Fujiyoshida, JP;
Citizen Watch Co., Ltd., Nishitokyo, JP;
Keisuke Sakai, Fujiyoshida, JP;
Citizen Electronics Co., Ltd., Fujiyoshida, JP;
Citizen Watch Co., Ltd., Nishitokyo, JP;
Abstract
A light emitting device has a substrate, a plurality of first light emitting elements, each of which is mounted on the substrate, has a first LED die, and emits light having a first wavelength, a first light transmitting layer arranged so as to cover the plurality of first light emitting elements, the first light transmitting layer transmitting light emitted from the plurality of first light emitting elements, a second light transmitting layer arranged so as to cover the first light transmitting layer, the second light transmitting layer transmitting light that has transmitted through the first light transmitting layer, and a reflector having an upwardly bulging curved surface at an upper portion of an inner wall that the first light transmitting layer and the second light transmitting layer contact, the reflector being arranged on the substrate so as to surround the plurality of first light emitting elements and reflecting light emitted from the first light emitting elements, wherein the thickness T between the upper surfaces of the first LED dies and the upper surface of the first light transmitting layer is greater than a thickness T1 defined as