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. 22, 2016
Filed:
Oct. 03, 2014
Coretronic Corporation, Hsin-Chu, TW;
CORETRONIC CORPORATION, Hsin-Chu, TW;
Abstract
A phosphor wheel includes a rotating disk and a wavelength converting layer. The rotating disk has a first surface and a second surface opposite to the first surface, in which the first surface forms a coating region and a non-coating region. The wavelength converting layer is formed on the coating region of the first surface for converting a light wavelength of a light beam. In addition, an embodiment of the invention discloses a projection device having the phosphor wheel. When the rotating disk of the phosphor wheel rotates, the recess portion may disturb the air around the phosphor wheel such that the temperature of the wavelength converting layer may be effectively decreased. Simultaneously, the rotating disk has a stable dynamic balance and the rotating disk has a larger heat dissipating region because the recess portion is disposed on the rotating disk.