Durable silver mirror with ultra-violet thru far infra-red reflection
US7838134B2 · kind B2 · utility
7Cited by
11References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 23, 2005 |
| Grant date | Nov 23, 2010 |
| Priority date | — |
| Expiry date | Apr 1, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A durable highly reflective silver mirror characterized by high reflectance in a broad spectral range of about 300 nm in the UV to the far infrared (˜10000 nm), as well as exceptional environmental durability. A high absorptivity metal underlayer is used which prevents the formation of a galvanic cell with a silver layer while increasing the reflectance of the silver layer. Environmentally durable overcoat layers are provided to enhance mechanical and chemical durability and protect the silver layer from corrosion and tarnishing, for use in a wide variety of surroundings or climates, including harsh or extreme environments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.