Electro-optical element including IMI coatings

Details Electro-optical element including IMI coatings Electro-optical element including IMI coatings

2007-03-05

2010-11-09

Lester, Evelyn A. (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

C359S266000, C359S268000, C359S273000, C359S275000

Reexamination Certificate

active

07830583

ABSTRACT:
An electrochromic element comprises a first substrate having a first surface and a second surface opposite the first surface, a second substrate in spaced-apart relationship to the first substrate and having a third surface facing the second surface and a fourth surface opposite the third surface, and an electrochromic medium located between the first and second substrates, wherein the electrochromic medium has a light transmittance that is variable upon application of an electric field thereto. The electrochromic element further comprises a transparent electrode layer covering at least a portion of at least a select one of the first surface, the second surface, the third surface, and the fourth surface, wherein the transparent electrode layer comprises an insulator/metal/insulator stack. The materials utilized to construct the insulator/metal/insulator stack are selected to optimize optical and physical properties of the electrochromic element such as reflectivity, color, electrical switch stability, and environmental durability.

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