Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Atsushi Matsunaga0
Ryuji Shinohara0
Kiyoshi Morimoto0
Hideki Kaneiwa0
Date of Patent
February 20, 2007
0Patent Application Number
110725110
Date Filed
March 7, 2005
0Patent Primary Examiner
Patent abstract
An optical element comprises: an electromotive force-generating element that generates an electromotive force in response to electromagnetic wave; and an optical density-changing element that changes its optical density according to the electromotive force, the optical density-changing element comprising: at least one of metal sulfide and metal nitride; and a material that causes a change of the optical density and adsorbs to said at least one of metal sulfide and metal nitride.
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