Infrared reflecting film
US10761248B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 25, 2016 |
| Grant date | Sep 1, 2020 |
| Priority date | — |
| Expiry date | Aug 30, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/282
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention relates to an infrared reflecting film comprising a flexible polymer substrate; a heat-mirror stack on the substrate, said heat-mirror stack comprising a first dielectric oxide layer, a second dielectric oxide layer and a silver-containing layer between the first and second dielectric oxide layers; and an optical stack on the heat mirror stack, said optical stack comprising alternating layers of at least one layer of a first type and at least one layer of a second type, wherein each layer of the first type has a refractive index measured at 550 nm of 1.6 or less and each layer of the second type has a refractive index measured at 550 nm of 2.3 or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.