Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
May 13, 2008
Patent Application Number
11563907
Date Filed
November 28, 2006
Patent Citations Received
Patent Primary Examiner
Patent abstract
A light control device includes a substrate, a first reflective layer, a light modulating film in which the refractive index varies according to an applied electric field, a transparent electrode, and a second reflective layer having a reflection characteristic such that the reflection band and transmission band exhibit a steep switching pattern at a specified wavelength. The device is configured such that the specified wavelength and the resonant wavelength of a Fabry-Perot resonator defined by the first reflective layer, the light modulating film, the transparent electrode, and the second reflective layer are substantially the same. The reflection-type light control device has improved light utilization efficiency.
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