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Patent Searching and Data


Title:
OPTICAL ARTICLE
Document Type and Number:
WIPO Patent Application WO/2019/189855
Kind Code:
A1
Abstract:
The present invention provides an optical article such as an eyeglass lens that both is strong and has an enhanced rate of discoloration of a light-modulating layer having photochromic properties. This optical article such as an eyeglass lens has a light-modulating layer that contains a photochromic pigment and a resin component, and a protective layer, said layers being formed on a substrate. The indentation hardness of an inner part in the film thickness direction of the light-modulating layer is within the range of 0.1-10 mgf/μm2. In addition, a value defined as the indentation hardness of an inner part in the film thickness direction of the protective layer multiplied by the film thickness thereof is 5-9000 times a value defined as the indentation hardness of the inner part in the film thickness direction of the light-modulating layer multiplied by the film thickness thereof.

Inventors:
SHIMADA Takuya (6-10-1Nishi-Shinjuku,Shinjuku-k, Tokyo 47, 〒1608347, JP)
HAMAMOTO Terufumi (6-10-1Nishi-Shinjuku,Shinjuku-k, Tokyo 47, 〒1608347, JP)
KUTSUKAKE Yusuke (6-10-1Nishi-Shinjuku,Shinjuku-k, Tokyo 47, 〒1608347, JP)
YAMASHITA Teruo (6-10-1Nishi-Shinjuku,Shinjuku-k, Tokyo 47, 〒1608347, JP)
WATANABE Tsuyoshi (6-10-1Nishi-Shinjuku,Shinjuku-k, Tokyo 47, 〒1608347, JP)
Application Number:
JP2019/014248
Publication Date:
October 03, 2019
Filing Date:
March 29, 2019
Export Citation:
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Assignee:
HOYA LENS THAILAND LTD. (853 Phaholyothin Road, PrachatipatThanyaburi,Pathumthan, ., 12130, TH)
SHIMADA Takuya (6-10-1Nishi-Shinjuku,Shinjuku-k, Tokyo 47, 〒1608347, JP)
HAMAMOTO Terufumi (6-10-1Nishi-Shinjuku,Shinjuku-k, Tokyo 47, 〒1608347, JP)
KUTSUKAKE Yusuke (6-10-1Nishi-Shinjuku,Shinjuku-k, Tokyo 47, 〒1608347, JP)
YAMASHITA Teruo (6-10-1Nishi-Shinjuku,Shinjuku-k, Tokyo 47, 〒1608347, JP)
WATANABE Tsuyoshi (6-10-1Nishi-Shinjuku,Shinjuku-k, Tokyo 47, 〒1608347, JP)
International Classes:
G02C7/10; G02B5/23
Domestic Patent References:
WO2003011967A12003-02-13
WO2003011967A12003-02-13
WO2008001578A12008-01-03
WO1994022850A11994-10-13
WO1996014596A11996-05-17
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Attorney, Agent or Firm:
OTSUKA Takefumi (Room 210, Shuwa 2nd Tsukiji Residence3-12,Tsukiji 4-chome,Chuo-k, Tokyo 45, 〒1040045, JP)
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