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U.S. Department of Energy
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Solid state electrochromic light modulator

Patent ·
OSTI ID:7074163

An all solid-state variable transmission electrochromic device has a source of charge compensating ions. An inorganic oxide counter electrode film which on reduction with the accompanying insertion of the charge compensating ions increases its transmission of light of predetermined wavelength is separated from a primary electrochromic film which on reduction with the accompanying insertion of the charge compensating ions decreases its transmission of light of predetermined wavelength by an insulating electrolyte film that transports the charge compensating ions. First and second electrodes are contiguous with the inorganic oxide counter electrode film and the primary electrochromic film, respectively, and separated by the three films. 4 figs.

Research Organization:
EIC Laboratories Inc
DOE Contract Number:
AC03-87SF16733
Assignee:
OAK; EDB-94-115823
Patent Number(s):
A; US 4938571
Application Number:
PPN: US 7-207496
OSTI ID:
7074163
Country of Publication:
United States
Language:
English