Method for producing polarizing lens, polarizing film and polarizing lens

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United States of America Patent

PATENT NO 12023882
APP PUB NO 20210370625A1
SERIAL NO

17394144

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Abstract

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A method for producing a polarizing lens having a high luminous transmittance and degree of polarization with astigmatism kept low, and a polarizing film and a polarizing lens. The method for producing a polarizing lens includes: contracting a polarizing film at a maximum rate of contraction of 5% or more and 30% or less under moist conditions; processing the polarizing film into a curve; drying the polarizing film at temperature T1; providing a mold having a cavity in which the polarizing film is placed in the inside; injecting a curable composition into the cavity; curing the curable composition to obtain a polarizing lens in which the polarizing film is placed in the inside; and annealing the polarizing lens at temperature T2, wherein a relationship between the temperature T1 and the temperature T2 satisfies the following expression (1): T1>T2 . . . (1).

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Patent Owner(s)

Patent OwnerAddress
HOYA LENS THAILAND LTDTHAILAND PATHUMTHANI PATHUM THANI

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Matsue, Aoi Tokyo, JP 12 0
Takada, Keisuke Tokyo, JP 37 123
Watanabe, Tsuyoshi Tokyo, JP 251 3095
Yamashita, Teruo Tokyo, JP 57 225

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