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Patent Searching and Data


Title:
OPTICAL COMPONENT
Document Type and Number:
WIPO Patent Application WO/2019/189875
Kind Code:
A1
Abstract:
The present invention provides an optical component, such as an eyeglass lens, having both lens strength and improved fading speed in a photochromic light-adjusting layer. This optical component such as an eyeglass lens has, on a substrate, a light-adjusting layer containing a photochromic dye and a resin component, and a protective film. The indentation harness in the interior of this light-adjusting layer in the film thickness direction is equal to or less than the indentation hardness of the substrate surface. In addition, a value defined as the indentation hardness in the inferior of the protective film in the film thickness direction × the film thickness is 0.05 to 1 times a value defined as the indentation hardness in the inferior of the light-adjusting layer in the film thickness direction × the film thickness.

Inventors:
SHIMADA Takuya (6-10-1Nishi-Shinjuku,Shinjuku-k, Tokyo 47, 〒1608347, JP)
KUTSUKAKE Yusuke (6-10-1Nishi-Shinjuku,Shinjuku-k, Tokyo 47, 〒1608347, JP)
HAMAMOTO Terufumi (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:
JP2019/014326
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)
KUTSUKAKE Yusuke (6-10-1Nishi-Shinjuku,Shinjuku-k, Tokyo 47, 〒1608347, JP)
HAMAMOTO Terufumi (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
Foreign References:
JP2008058932A2008-03-13
JP2010524726A2010-07-22
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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