Patent · US Expired

Electrical supply for an electrochromic cell

US5402144A · kind A · utility

123Cited by
3References
15Claims
0Family size

Assignee

Inventor

Key dates

Filing dateAug 12, 1993
Grant dateMar 28, 1995
Priority date
Expiry dateAug 12, 2013

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02F1/163
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An electrochromic cell, connected to an electrical reference element equivalent to an element of the electrochromic cell of zero surface dimensions and zero electrolyte thickness, connected in series with a resistance R.sub.i identical to the ion resistance of the electrochromic cell (reduced to a same zero surface), a potential difference applied by a generator, in coloration and decoloration respectively, being such that the voltage at the terminals of the reference element is kept at a value below a coloration reference voltage or decoloration reference voltage respectively.

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