Variable light transmittance window
US8248683B2 · kind B2 · utility
5Cited by
12References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2010 |
| Grant date | Aug 21, 2012 |
| Priority date | — |
| Expiry date | Dec 30, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/0147
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A variable light transmittance window includes: a substrate configured to transmit light; a thermochromic layer on the substrate; first function thin film layers on opposite surfaces of the thermochromic layer; and second function thin film layers on respective surfaces of the first function thin film layers opposite the thermochromic layer, wherein a difference between refractive indices of the first function thin film layers and the second function thin film layers is greater than a difference between refractive indices of the first function thin film layers and the thermochromic layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.