Methods and Systems for Quantitatively Measuring Photoprotection

    公开(公告)号:US20210033459A1

    公开(公告)日:2021-02-04

    申请号:US17068331

    申请日:2020-10-12

    Abstract: The present disclosure relates, according to some embodiments, to a method of determining a quantitatively measured photoprotection of a photoprotective composition, the method comprising: (a) distributing the photoprotective composition in a position in between a drawdown bar and at least one substrate to produce a distributed photoprotective composition; (b) drawing down the distributed photoprotective composition to a thickness on at least one substrate to produce a drawn down sample film; (c) drying the drawn down sample film to produce a dried sample film; (d) measuring a UV absorption of the dried sample film to produce a UV absorption spectrum; (e) determining the quantitatively measured photoprotection of the photoprotective composition from the UV absorption spectrum. The present disclosure relates, according to some embodiments, to a method of determining a quantitatively measured photoprotection of a photoprotective composition, the method comprising: (a) spraying at least one coat of the photoprotective composition to a thickness on at least one surface of a substrate to produce a spray coated substrate sample; (b) drying the spray coated substrate sample to produce a dried sample film; (c) measuring a UV absorption of the dried sample film to produce a UV absorption spectrum; and (d) determining the quantitatively measured photoprotection of the photoprotective composition from the UV absorption spectrum.

    DISPLAY DEVICE
    6.
    发明申请
    DISPLAY DEVICE 审中-公开

    公开(公告)号:US20190301928A1

    公开(公告)日:2019-10-03

    申请号:US16368819

    申请日:2019-03-28

    Inventor: HIROMI ENOMOTO

    Abstract: A display includes a display component having a display surface displaying an image thereon and an ultraviolet ray detection section included in a section of the display component that is to be irradiated with external light, and the ultraviolet ray detection section contains material that changes its color by irradiation of ultraviolet rays.

    Ultraviolet-sensitive sheet, ultraviolet-sensing kit, and method for sensing ultraviolet

    公开(公告)号:US10247603B2

    公开(公告)日:2019-04-02

    申请号:US14829940

    申请日:2015-08-19

    Inventor: Masahiro Hatta

    Abstract: Provided an ultraviolet-sensing sheet that facilitates measurement of ultraviolet irradiance over a wide area, that is suitable in ultraviolet irradiance in a range from 1 to 1,000 mJ/cm2, and that is easier to visually assess for coloring on the cumulative illuminance of ultraviolet, an ultraviolet-sensing kit, and a method for sensing ultraviolet.The ultraviolet-sensing kit comprises a sheet containing an ultraviolet-sensing layer and a film for adjusting ultraviolet-sensitivity, wherein the sheet containing an ultraviolet-sensing layer comprising, a support and an ultraviolet-sensing layer in this order, the ultraviolet-sensing layer comprising a capsule containing a photo-oxidant and a capable of developing color by the photo-oxidant, a mass ratio of the photo-oxidant and the leuco dye is 0.2 to 1.0:1, and the leuco dye being present in an amount of 0.1 to 1.0 g per 1 m2 of a surface area of the ultraviolet-sensing layer.

    PHOTOSENSITIVE PRINTING COMPOSITION
    8.
    发明申请

    公开(公告)号:US20190002720A1

    公开(公告)日:2019-01-03

    申请号:US16081200

    申请日:2017-03-01

    Abstract: The invention relates to a photosensitive printing composition comprising a photocatalyst which exhibits a photocatalytic effect when exposed to UV and/or visible radiation, a colouring agent that exhibits a colour change in response to the photocatalytic effect, and a film forming agent. The composition has a viscosity suitable for printing. The invention further relates to a sun-exposure sensor comprising a photosensitive layer printed on a surface of a support, the photosensitive layer comprising a photocatalyst which exhibits a photocatalytic effect when exposed to UV and/or visible radiation, a colouring agent that exhibits a colour change in response to the photocatalytic effect, and a film forming agent.

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