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:
Aug. 10, 2021
Filed:
Nov. 28, 2019
Coretronic Corporation, Hsin-Chu, TW;
Ken-Teng Peng, Hsin-Chu, TW;
Coretronic Corporation, Hsin-Chu, TW;
Abstract
A projection device including an illumination system, a polarization beam splitting component, a first light valve, a second light valve, and a projection lens is provided. The polarization beam splitting component is disposed on a transmission path of the beams of multiple colors that are transmitted from the illumination system in time sequence. The polarization beam splitting component splits each color beam into a first polarization beam and a second polarization beam having polarization states perpendicular to each other. The first light valve is disposed on a transmission path of the first polarization beam and converts the first polarization beam into a first image beam. The second light valve is disposed on a transmission path of the second polarization beam and converts the second polarization beam into a second image beam. The projection lens is disposed on transmission paths of the first image beam and the second image beam.