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:
May. 05, 2020
Filed:
Jul. 31, 2018
Coretronic Corporation, Hsin-Chu, TW;
Coretronic Corporation, Hsin-Chu, CN;
Abstract
A projection correction method adapted to a projector. The projection correction method includes: sensing a temperature of a body of the projector, so as to obtain a first temperature value, where a focusing gear of the projector is located at a first gear position; determining whether the temperature of the body of the projector is changed, and when the temperature of the body of the projector is changed from the first temperature value to a second temperature value, the focusing gear is rotated by a predetermined distance to rotate the focusing gear to a second gear position; and determining whether a storage device stores a target gear position corresponding to the second temperature value, so as to rotate the focusing gear to the target gear position. Moreover, a projector using the aforementioned projection correction method is also provided.