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:
Feb. 13, 2024
Filed:
May. 24, 2021
Visera Technologies Company Limited, Hsin-Chu, TW;
VISERA TECHNOLOGIES COMPANY LIMITED, Hsin-Chu, TW;
Abstract
An optical device is provided. The optical device has a central region and a first-type region surrounding the central region. The first-type region includes a first sub-region and a second sub-region between the central region and the first sub-region. The optical device includes a substrate. The optical device also includes a meta-structure disposed on the substrate. The meta-structure includes first pillars in the first sub-region and second pillars in the second sub-region. In the cross-sectional view of the optical device along the radial direction of the optical device, two adjacent first pillars have a first pitch, two adjacent second pillars have a second pitch, and the second pitch is greater than the first pitch.