公开(公告)号：US12023882B2

公开(公告)日：2024-07-02

申请号：US17394144

申请日：2021-08-04

Applicant: HOYA LENS THAILAND LTD.

Inventor： Keisuke Takada ,  Aoi Matsue ,  Teruo Yamashita ,  Tsuyoshi Watanabe

IPC: B29D11/00 ,  G02B1/08 ,  G02B5/30 ,  B29L11/00 ,  G02C7/02 ,  G02C7/12

CPC classification number: B29D11/00442 ,  B29D11/0048 ,  B29D11/00644 ,  G02B1/08 ,  G02B5/3033 ,  B29L2011/0016 ,  G02C7/022 ,  G02C7/12

Abstract: 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).