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Patent Searching and Data


Title:
METHOD FOR MANUFACTURING POLARIZING LENS, POLARIZING FILM, AND POLARIZING LENS
Document Type and Number:
WIPO Patent Application WO/2020/262402
Kind Code:
A1
Abstract:
The present invention relates to a method for manufacturing a polarizing lens, a polarizing film, and a polarizing lens, the polarizing lens having high luminous transmittance and polarization degree, and reduced astigmatism. Provided is a method for manufacturing a polarizing lens, the method comprising: shrinking a polarizing film with a maximum shrinkage percentage of 14-30% inclusive under a humid environment; working the polarizing film into a curved surface; drying the polarizing film; preparing a forming die having a cavity in which the polarizing film is disposed; injecting a curable composition into the cavity; obtaining a polarizing lens in which the polarizing film is disposed by curing the curable composition; and annealing the polarizing lens.

Inventors:
TAKADA KEISUKE (JP)
MATSUE AOI (JP)
YAMASHITA TERUO (JP)
WATANABE TSUYOSHI (JP)
Application Number:
PCT/JP2020/024656
Publication Date:
December 30, 2020
Filing Date:
June 23, 2020
Export Citation:
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Assignee:
HOYA LENS THAILAND LTD (TH)
TAKADA KEISUKE (JP)
MATSUE AOI (JP)
YAMASHITA TERUO (JP)
WATANABE TSUYOSHI (JP)
International Classes:
G02C7/12; B29C39/10; G02B5/30; B29L11/00
Domestic Patent References:
WO2014021466A12014-02-06
WO2014077339A12014-05-22
WO2014077338A12014-05-22
Foreign References:
JP2003128945A2003-05-08
JP2017007219A2017-01-12
US20190064549A12019-02-28
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
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