Patent · US Active

Transparent photochromic device

US11525180B2 · kind B2 · utility

0Cited by

5References

11Claims

0Family size

Assignee

Institutt for Energiteknikk · NO

Inventors

Fredrik Aleksander Martinsen · Oslo, NO
José Montero Amenedo · La Bañeza, ES
Smagul Karazhanov · Lillestrøm, NO
Trygve Mongstad · Oslo, NO
Erik Stensrud Marstein · Skedsmokorset, NO

Key dates

Filing date	Jan 20, 2017
Grant date	Dec 13, 2022
Priority date	—
Expiry date	Aug 4, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG02F2202/14
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The present invention relates to a metal hydride device having a variable transparency, comprising a substrate, at least one layer including a photochromic yttrium hydride having a chosen band gap, and a capping layer at least partially positioned on the opposite side of the photochromic yttrium hydride layer from the substrate, said capping layer being essentially impermeable to hydrogen and oxygen.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.