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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 (6-10-1 Nishi-Shinjuku Shinjuku-k, Tokyo 47, 〒1608347, 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. (853 Phaholyothin Road, Prachatipat Thanyabur, Pathumthani ., 12130, TH)
TANAKA, Hisako (6-10-1 Nishi-Shinjuku Shinjuku-k, Tokyo 47, 〒1608347, 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. (OHTANI PATENT OFFICE, Toranomon ES Bldg. 7F. 25-2, Toranomon 3-chome, Minato-k, Tokyo 01, 〒1050001, JP)
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