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. 05, 2023
Filed:
Jul. 26, 2022
Young Optics Inc., Hsinchu, TW;
Wei-Cheng Lo, Hsinchu, TW;
Yu-Ting Huang, Hsinchu, TW;
Young Optics Inc., Hsinchu, TW;
Abstract
A heat dissipation device for a projector includes a light source, a light valve, a prism set, a shading element, and a projection lens. The light source emits a light beam. The light valve is disposed downstream of a light path of the light source to receive the light beam, convert a part of the light beam into image light and another part of the light beam into an ineffective light beam. The prism set includes at least one prism, receiving the image light and the ineffective light beam. The shading element includes a heat dissipation part and is disposed downstream of a light path of the prism set and used to block the ineffective light beam from the prism set. The projection lens is disposed downstream of the light path of the prism set.