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:
Oct. 12, 2021
Filed:
Jun. 09, 2020
Coretronic Corporation, Hsin-Chu, TW;
Wen-Jui Huang, Hsin-Chu, TW;
Tsung-Ching Lin, Hsin-Chu, TW;
Coretronic Corporation, Hsin-Chu, TW;
Abstract
A projection apparatus includes a casing, a projection lens, a first fan, a second fan, and a heat sink assembly. The casing has an air inlet and an air outlet. The projection lens is disposed in the casing, and between the air inlet and the air outlet. The first fan is disposed in the casing, and between the projection lens and the air inlet. The second fan is disposed in the casing, and between the projection lens and the air outlet. The heat sink assembly is disposed in the casing and between the projection lens and the air inlet. The first fan has a first rotational speed, the second fan has a second rotational speed. The second rotational speed is larger than the first rotational speed. The projection apparatus has the advantages of low development cost and effectively lowering the influence of the heat on the image quality.