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:
Nov. 11, 2025
Filed:
Aug. 25, 2021
Nichia Corporation, Anan, JP;
Soichiro Miura, Tokushima, JP;
NICHIA CORPORATION, Anan, JP;
Abstract
A light-emitting device includes: a first light-emitting element to emit first light having a first peak wavelength; a second light-emitting element to emit second light having a second peak wavelength; and an optical control unit to receive the first light and second light having non-parallel optical axes and emit the first light and second light such that the first light and second light have parallel optical axes. The optical control unit includes: one or two first optical members which create a first region to reflect the first light at a first optical path length, a second region to reflect the first light at a second optical path length which emitting longer than the first optical path length, and a third region to transmit the first light and reflect the second light; and a second optical member having a reflective surface to reflect the second light.