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:
May. 12, 2026
Filed:
Feb. 21, 2023
Coretronic Corporation, Hsin-Chu, TW;
Chang-Hsuan Chen, Hsin-Chu, TW;
Coretronic Corporation, Hsin-Chu, TW;
Abstract
Provided is a projection apparatus including a light valve, a projection lens, and an illumination system including at least one light-source module, at least one focusing lens, and at least one diffusing element. The excitation beams pass through from the at least one light-source module to the focusing lens and the diffusing element sequentially to form an illumination beam. The maximum width of a first light spot formed by the excitation beams on a light-exit surface of the focusing lens is a first width. The maximum width of a second light spot formed on a light-exit surface of the diffusing element is a second width. The maximum width of a third light spot formed by the illumination beam on a light-incident surface of the light valve is a third width. The first width is greater than the second width, and the second width is greater than the third width.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile