Multilayer wire-grid polarizer
US7570424B2 · kind B2 · utility
42Cited by
133References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2004 |
| Grant date | Aug 4, 2009 |
| Priority date | — |
| Expiry date | Feb 22, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/3058
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A multilayer wire-grid polarizer for polarizing light includes a stack of thin film layers disposed over a substrate, including a wire-grid array of elongated metal elements having lengths longer than a wavelength of the light and a period less than half the wavelength of the light. One of the layers can include a thin film layer with a refractive index greater than a refractive index of the substrate. One of the thin film layers can include a dielectric array of non-metal elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.