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. 18, 2025
Filed:
Nov. 16, 2022
Ultra-wide angle broadband polarization imaging system based on metasurface, and detection apparatus
The Institute of Optics and Electronics, the Chinese Academy of Sciences, Sichuan, CN;
Xiangang Luo, Sichuan, CN;
Mingbo Pu, Sichuan, CN;
Ting Xie, Sichuan, CN;
Fei Zhang, Sichuan, CN;
Xiaoliang Ma, Sichuan, CN;
Abstract
An ultra-wide angle broadband polarization imaging system based on a metasurface, and a detection apparatus, the imaging system comprising a first lens (L) having negative optical power, a linear polarizer (P), a quarter wave plate (P), a diaphragm (STO), a second lens (L) having positive optical power, a third lens (L) having positive optical power, and the metasurface (M), wherein an object side surface and an image side surface of the lens are planar or spherical; and the phase distribution required for the system in a broadband spectrum band is achieved by setting different rotation angles θ of a unit structure of the metasurface.