Patent · US Expired

Ion exchange-electrolyte layer for electrochromic devices

US4215917A · kind A · utility

16Cited by
13References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 27, 1976
Grant dateAug 5, 1980
Priority date
Expiry dateOct 27, 1996

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02F1/1525
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

Disclosed is an electrochromic variable light modulating device including an improved ion conducting medium comprising a solid or semi-solid layer of polymer of the ion exchange type wetted with a small amount of water and/or acid electrolyte solution.

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