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:
Dec. 16, 2025
Filed:
Jul. 27, 2023
Coretronic Corporation, Hsin-Chu, TW;
Pei-Yu Hsu, Hsin-Chu, TW;
Coretronic Corporation, Hsin-Chu, TW;
Abstract
A wavelength conversion device includes a disk, a wavelength conversion material, a light-transmitting counterweight ring, a first adhesive layer and at least one counterweight member. The disk has a central axis and rotates around the central axis as the rotation axis. The wavelength conversion material is arranged on the outer edge of the upper surface of the disk. The light-transmitting counterweight ring is arranged on the upper surface of the disk. The first adhesive layer is arranged between the light-transmitting counterweight ring and the disk. At least one counterweight member is disposed on one side of the light-transmitting counterweight ring away from the disk. The at least one counterweight member includes a weight and a photocured component covering the weight, and at least part of the photocured component is located between the weight and the light-transmitting counterweight ring. A projection device is also provided.