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. 08, 2020
Filed:
Apr. 23, 2020
Coretronic Corporation, Hsin-Chu, TW;
Coretronic Corporation, Hsin-Chu, TW;
Abstract
A projection apparatus and a heat dissipation control method thereof are provided. The projection apparatus includes a light valve module, a light source, a brightness sensor, a cooling element, a first temperature sensor, a second temperature sensor and a controller. The controller determines a specified temperature of the cooling element according to the brightness of an illumination beam provided by the light source, and calculates a dew point temperature according to the ambient temperature. The controller adjusts the operating power of the cooling element according to the dew point temperature, the specified temperature and the cold end temperature of the cold end surface of the cooling element. The operating power of the cooling element is flexibly adjusted based on the brightness provided by the light source to avoid a dew formation phenomenon on the cooling element and the light valve module.