Corrosion resistant wire-grid polarizer and method of fabrication
US6785050B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2002 |
| Grant date | Aug 31, 2004 |
| Priority date | — |
| Expiry date | May 9, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/3058
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A polarizing device, such as a wire-grid polarizer, includes a substantial mono-layer of a corrosion inhibitor without adversely affecting the optical properties of the polarizing device. The polarizing device can include an optical element and a nano-structure, such as an array of a plurality of spaced-apart, elongated elements disposed on a substrate. The corrosion inhibitor is chemically bonded to surfaces of the elements to form the mono-layer. The mono-layer can have a thickness less than 100 Angstroms. A method of forming the substantial mono-layer can include treating the polarizing device with an amino phosphonate, such as a nitrilotris (methylene) triphosphonic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.