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:
May. 02, 2023
Filed:
Jun. 12, 2019
National Institute of Advanced Industrial Science and Technology, Tokyo, JP;
Phoenix Electric Co., Ltd., Himeji, JP;
National Institute for Materials Science, Tsukuba, JP;
Takashi Fukuda, Tsukuba, JP;
Tetsuya Gouda, Himeji, JP;
Yuta Sakimoto, Himeji, JP;
Naoto Hirosaki, Tsukuba, JP;
Kohsei Takahashi, Tsukuba, JP;
NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, Tokyo, JP;
PHOENIX ELECTRIC CO., LTD., Himeji, JP;
NATIONAL INSTITUTE FOR MATERIALS SCIENCE, Tsubaka, JP;
Abstract
A light-emitting device including a solid-state light source that emits light having a peak wavelength in the range of 480 nm or less and a fluorescent film that covers the solid-state light source and includes at least one kind of phosphor, wherein the fluorescent film includes at least one kind of near-infrared phosphor that is excited by light from the solid-state light source, has a peak wavelength in the range exceeding 700 nm, and has an emission spectrum with a full width at half maximum of 100 nm or more in a range including the peak wavelength.