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:
Oct. 01, 2019
Filed:
Mar. 30, 2018
Qisda Corporation, Taoyuan, TW;
Chih-Shiung Chien, Taoyuan, TW;
Ming-Kuen Lin, Taoyuan, TW;
Qisda Corporation, Taoyuan, TW;
Abstract
The invention provides a projector with a biaxially-tilted (with a 17-degree tilting angle) digital micro mirror device (DMD) whose light source module and lens set deployment is improved so that the incident light provided by the light source module travels along a first light route and is enlarged by the lens set before traveling along a second light route and provided to the biaxially-tilted DMD. The projector features in that the first lens group is composed of two specific spherical lenses or one specific aspheric lens and the second lens group is composed of one aspheric lens. Therefore, the prismless, non-telecentric projector, without using any TIR prism, can be made with fewer components, lower cost, and enhanced efficiency.