Low-refractive-index film, laminate, optical element, windbreak material, and display device

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12181630
APP PUB NO 20230110637A1
SERIAL NO

17904905

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A low-refractive-index film 10 includes a first layer 11 and a second layer 12. The first layer 11 is adjacent to a substrate 20. The low-refractive-index film 10 has a refractive index of greater than or equal to 1.01 and less than or equal to 1.30. The first layer 11 and the second layer 12 each include hollow particles 13 and a binder 14. The first layer 11 satisfies, for example, at least one selected from a group of conditions (I) and (II) described below.

    (I) A number density ρv1 of voids 15 each having a cross-sectional area of greater than or equal to 1000 nm2 is greater than or equal to 5/μm2 and less than or equal to 100/μm2 on a cross-section of the first layer 11. (II) A ratio of a cross-sectional area of the voids 15 on the cross-section to a total area of the cross-section of the first layer 11 is greater than or equal to 5% and less than or equal to 70%.

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Patent Owner(s)

  • NIPPON SHEET GLASS COMPANY LIMITED

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Imai, Hisao Mie, JP 5 16
Kusaka, Satoru Tokyo, JP 16 78
Nakamura, Koichiro Kanagawa, JP 84 699
Tanaka, Hiroyuki Kanagawa, JP 980 8259

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