Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Shinichi Morishima0
Jun Takeda0
Date of Patent
January 13, 2015
0Patent Application Number
136613290
Date Filed
October 26, 2012
0Patent Citations Received
Patent Primary Examiner
Patent abstract
Provided is a photochromic polarizing plate exhibiting reduced tint. The photochromic polarizing plate contains a laminate including at least one film, a polarizer, and an optically transparent substrate, wherein the photochromic polarizing plate has a single-plate transmittance T1(λ)% and a crossed transmittance T2(λ)% at a wavelength of λ nm satisfying Formulae (1) to (4): Formula (1) 55%≧T1(430)≧38%; Formula (2) 60%≧T1(590)≧42.5%; Formula (3) 1.0≧T1(430)/T1(590)≧0.9; and Formula (4) T2(430)≧0.02%.
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