Patent · US Expired

Double sided wire grid polarizer

US6844971B2 · kind B2 · utility

33Cited by

34References

13Claims

0Family size

Assignee

EASTMAN KODAK COMPANY · US

Inventors

Barry D. Silverstein · Menlo Park, US
Andrew F. Kurtz · Macedon, US
Xiang-Dong Mi · Beijing, CN

Key dates

Filing date	Dec 10, 2003
Grant date	Jan 18, 2005
Priority date	—
Expiry date	Dec 10, 2023

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S359/90
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A wire grid polarizer (100) for polarizing an incident light beam (130), comprising a substrate (505) having a first surface (410) and a second surface (510); and a first array of parallel, elongated wires disposed on the first surface (410). Each of the wires are spaced apart at a grid period less than a wavelength of the incident light; and a second array of parallel, elongated wires disposed on said second surface (420) where the second array of wires are oriented parallel to the first array of wires.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.