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:
Nov. 04, 2014
Filed:
Jul. 03, 2013
Lite-on IT Corporation, Taipei, TW;
Wen-Lung Lin, Hsinchu, TW;
Lite-On Technology Corporation, Taipei, TW;
Abstract
A scan projection device and a controlling method are projected. The scan projection device comprises a light source module, a scanning module and a scan driving device. The light source module is for providing an image beam. The scanning module has a first direction scanning frequency and a second direction scanning frequency. The first direction scanning frequency is 2N+1 times of the second direction scanning frequency, wherein N is an integer. The scanning module is for projecting the image beam towards a particular direction and scanning a projection surface. The scan driving device controls the scanning module to scan the projection surface back and forth along a scan trace at the first direction scanning frequency and the second direction scanning frequency.