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:
Apr. 26, 2022
Filed:
Nov. 09, 2020
Coretronic Corporation, Hsin-Chu, TW;
Coretronic Mems Corporation, Hsinchu County, TW;
Yi-Chien Lo, Hsin-Chu, TW;
Shih-Hsiung Tseng, Hsin-Chu, TW;
Coretronic Corporation, Hsin-Chu, TW;
Coretronics MEMS Corporation, Miaoli County, TW;
Abstract
A microelectromechanical apparatus includes a substrate, a light diffuser device, a plurality of actuator devices, and a controller. The light diffuser device is disposed on the substrate. The actuator devices surround the substrate and are coupled to the substrate. The controller is coupled to the actuator devices. The controller applies a voltage to at least one of the actuator devices to drive the substrate and to control the light diffuser device to actuate according to a reference axis perpendicular to the light diffuser device. A projection apparatus is also provided. In the disclosure, a motion pattern and motion complexity of the light diffuser device may be enhanced. Enhancement of the movement pattern and movement complexity may lead to a significant increase in a speckle pattern contrast ratio, such that the projection apparatus may provide favorable image quality.