ALKALI-FREE GLASS PLATE
    1.
    发明申请

    公开(公告)号:US20210380469A1

    公开(公告)日:2021-12-09

    申请号:US17283108

    申请日:2019-10-07

    Abstract: The present invention provides an alkali-free glass sheet, including as a glass composition, in terms of mol %, 60% to 74% of SiO2, 6% to 20% of Al2O3, 0% to 9% of B2O3, 1% to 13% of MgO, 1% to 13% of CaO, 0% to 7% of SrO, 0% to 8% of BaO, and 0% to less than 1.0% of Y2O3+La2O3, being substantially free of an alkali metal oxide, and having a strain point of 650° C. or more.

    METHOD FOR MANUFACTURING WAVELENGTH CONVERSION MEMBER

    公开(公告)号:US20190241456A1

    公开(公告)日:2019-08-08

    申请号:US16315701

    申请日:2017-08-02

    CPC classification number: C03B19/063 F21V9/30 G02B5/20 H01L33/50

    Abstract: Provided is a method for manufacturing a wavelength conversion member by which unevenness in luminescent color are less likely to occur. A method for manufacturing a wavelength conversion member includes the steps of: preparing a slurry containing glass particles to be a glass matrix 2 and phosphor particles 3; forming a green sheet by applying the slurry onto a support substrate and moving a doctor blade relative to the slurry, the doctor blade being spaced a predetermined distance away from the support substrate; forming a green sheet laminate by applying heat and pressure to a plurality of the green sheets overlaid one upon another; and sintering the green sheet laminate to obtain a wavelength conversion member, wherein in the step of forming a green sheet laminate, the plurality of green sheets are overlaid one upon another so that, as for at least two of the plurality of green sheets, respective directions of movement of the doctor blade in the step of forming a green sheet intersect each other.

    WAVELENGTH CONVERSION MEMBER AND PRODUCTION METHOD THEREFOR

    公开(公告)号:US20210284568A1

    公开(公告)日:2021-09-16

    申请号:US16315702

    申请日:2017-07-21

    Abstract: Provided is a wavelength conversion member that can be readily adjusted in chromaticity and can be increased in productivity and a production method for the wavelength conversion member. A wavelength conversion member 1 having a first principal surface 1a and a second principal surface 1b opposed to each other includes a glass matrix 2 and phosphor particles 3 disposed in the glass matrix 2, wherein concentrations of the phosphor particles 3 in the first principal surface 1a and in the second principal surface 1b are higher than concentrations of the phosphor particles 3 in surface layer bottom planes 1c and 1d located 20 μm inward from the first principal surface 1a and 20 μm inward from the second principal surface 1b, respectively.

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