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:
Sep. 29, 2026
Filed:
Jan. 05, 2024
Seiko Epson Corporation, Tokyo, JP;
Kosuke Tabayashi, Azumino, JP;
Norikazu Kadotani, Azumino, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
A phosphor unit includes: a phosphor wheel; a peripheral wall surrounding the phosphor; a heat receiving plate facing the phosphor wheel, and spaced apart from the phosphor wheel; and a heat receiving fin fixed to the heat receiving plate and surrounded by the peripheral wall. The phosphor wheel includes a substrate configured to rotate around the rotation axis, a wavelength conversion portion, and a heat dissipating fin, and including first fins that generate an airflow in a direction from a center toward outside by rotation of the substrate and dissipate heat transferred from the wavelength conversion portion to the airflow. The heat receiving fin includes second fins through which an airflow circulating from the phosphor wheel to the phosphor wheel via the peripheral wall and the heat receiving plate flows, and that receives heat from the flowing airflow and transfers the heat to the heat receiving plate.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile