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Patent Searching and Data


Title:
METHOD FOR MANUFACTURING SPECTACLE LENS
Document Type and Number:
WIPO Patent Application WO/2018/062525
Kind Code:
A1
Abstract:
Provided is a method for manufacturing a spectacle lens having a high rate of blocking light at a wavelength of 420 nm. A method for manufacturing a spectacle lens, the method including a step for immersing a base material in an immersion liquid containing a benzophenone-based UV absorber, a surfactant having a polyalkyleneoxy region, and an alcohol having an aromatic substituent, the visual transmittance of the base material after immersion being 70% or greater.

Inventors:
TANAKA HISAKO (JP)
Application Number:
JP2017/035616
Publication Date:
April 05, 2018
Filing Date:
September 29, 2017
Export Citation:
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Assignee:
HOYA LENS THAILAND LTD (TH)
TANAKA HISAKO (JP)
International Classes:
G02C7/10; G02B5/22
Domestic Patent References:
WO2014133110A12014-09-04
Foreign References:
JP2014047255A2014-03-17
JP2013134345A2013-07-08
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (JP)
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