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:
Jan. 11, 2022
Filed:
Oct. 14, 2020
Benq Intelligent Technology (Shanghai) Co., Ltd, Shanghai, CN;
Benq Corporation, Taipei, TW;
Tung-Chia Chou, New Taipei, TW;
Chin-Fu Chiang, New Taipei, TW;
BenQ Intelligent Technology (Shanghai) Co., Ltd, Shanghai, CN;
BENQ CORPORATION, Taipei, TW;
Abstract
A projector including an optical machine, a lens and a casing is provided. The optical machine is configured to form an optical image. The lens is located on a projection path of the optical machine so that the optical image is projected on the lens. The casing is configured to receive the optical machine and the lens. The casing is provided with a positioning mark, which is aligned with an imaging center of the optical image in a vertical direction and configured to align the imaging center of the optical image with a center of a projection screen.