Reversible inorganic electrochromic solution device

Details Reversible inorganic electrochromic solution device Reversible inorganic electrochromic solution device

1999-05-20

2000-09-19

Ben, Loha

Optical: systems and elements

Optical modulator

Light wave temporal modulation

359265, 359266, 359270, 359273, 204418, 252586, G02F 1153

Patent

active

061220922

ABSTRACT:
An electrochromic device (10) of reversible light-transmissivity comprises a pair of spaced-apart window plate members (11, 13) bearing electrically-conductive surface layers (12, 14) and containing an electrochromotropic electrolyte solution in the intervening space (16). The electrolyte comprises an aqueous inorganic solution of a silver salt and may further comprise a salt of a transition metal. The electrolyte solutions are responsive to varying applied voltages by transitioning between solution phases of varying light-transmissivity which, depending upon solution composition, may be persistent or passively reversible.

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patent: 5923456 (1999-07-01), Tench et al.
patent: 5985184 (1999-11-01), Lynam
patent: 6002511 (1999-12-01), Varaprasad et al.
patent: 6045725 (2000-04-01), Udaka et al.

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