The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 12, 2025
Filed:
Aug. 04, 2021
Hoya Lens Thailand Ltd., Pathumthani, TH;
Keisuke Takada, Tokyo, JP;
Aoi Matsue, Tokyo, JP;
Teruo Yamashita, Tokyo, JP;
Tsuyoshi Watanabe, Tokyo, JP;
HOYA LENS THAILAND LTD., Pathumthani, TH;
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 14% or more and 30% or less under moist conditions; processing the polarizing film into a curve; drying the polarizing film; 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.