Patent · US Active

Light weight electrochromic mirror stack

US8416486B2 · kind B2 · utility

7Cited by

5References

31Claims

0Family size

Assignee

SAINT-GOBAIN PERFORMANCE PLASTICS CHAINEUX · BE

Inventors

Edy Widjaja · Singapore, SG
Peter Persoone · Deinze, BE

Key dates

Filing date	Mar 9, 2009
Grant date	Apr 9, 2013
Priority date	—
Expiry date	Mar 9, 2029

Classification

Technology area (CPC G)Physics
CPC primaryG02F1/1533
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A light weight electrochromic dimmable mirror stack (300, 600) is presented that is composed only of solid-state layers (315, 615) with a total thickness of less than 50 micron and a reflector (310, 610). Normally such a kind of layered device suffers from iridescence due to interference of light waves reflecting at the interfaces between the layers of the electrochromic device. The solution provided by the invention is to pattern at least one of the layers (315, 615) in the device such that the interference effects are smeared out and a more neutral color is obtained. Various possible configurations are described and also the method to produce such a device.

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