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:
Sep. 29, 2026
Filed:
Sep. 27, 2022
Coretronic Corporation, Hsin-Chu, TW;
Coretronic Corporation, Hsin-Chu, TW;
Abstract
A focus adjustment method, adapted for a projection system is provided. The projection system includes a projection target and a projection device having a range-finding array element and a processor. A plurality of range-finding elements in the range-finding array element define a plurality of measurement mesh points. The focus adjustment method includes the following. A plurality of ranging regions in the measurement mesh points are defined, and each ranging region includes more than one measurement mesh point. All the range-finding elements in the ranging regions perform a ranging measurement to generate a plurality of original ranging values. An averaging calculation is performed on the original ranging values corresponding to each ranging region to generate a plurality of average region ranging values. Whether the average region ranging values are within a preset range is determined to generate an optimal ranging value which is used to adjust a lens focus.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile