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    GLASSES WITH IMPROVED ION EXCHANGEABILITY
    2.
    发明申请
    GLASSES WITH IMPROVED ION EXCHANGEABILITY 审中-公开

    公开(公告)号：US20200010355A1

    公开(公告)日：2020-01-09

    申请号：US16460084

    申请日：2019-07-02

    Applicant: Schott AG

    Inventor： Ulrich Fotheringham ,  Holger Wegener ,  Oliver Hochrein ,  Simone Monika Ritter ,  Wolfgang Mannstadt ,  Christoph Berndhäuser ,  Christoph Groß

    IPC: C03C3/093 ,  C03C4/18 ,  C03C4/20 ,  C03C3/066

    Abstract: The present invention relates to glasses, such as e.g. thin or thinnest glasses, but also to glasses for the production of tubular glass, carpules and syringes as well as other pharmaceutical vessels. The glasses are characterized by a high chemical prestressability (tem-perability) with very well alkali, hydrolytic and/or acid resistance as well as an advantageous coefficient of thermal expansion. The glass has a composition characterized by the following constituent phases: 0-60 mol % reedmergnerite; 20-60 mol % albite; 0-30 mol % orthoclase; 0-20 mol % natrosilite; 0-20 mol % sodium metasilicate; 0-20 mol % parakeldyshite; 0-20 mol % narsarsukite; 0-20 mol % disodium zinc silicate; 0-21 mol % cordierite; and 0-20 mol % danburite. A quotient of a coefficient of thermal expansion of the glass multiplied by 1000 (in ppm/K) and the product of a pH value and a removal rate in alkaline environment (in mg/(dm23h)) according to ISO 695 is at least 9.0.

    HIGH-INDEX SUBSTRATES
    4.
    发明公开
    HIGH-INDEX SUBSTRATES 审中-公开

    公开(公告)号：US20230192527A1

    公开(公告)日：2023-06-22

    申请号：US18086026

    申请日：2022-12-21

    Applicant: Schott AG

    Inventor： Jens Ulrich Thomas ,  Frank-Thomas Lentes ,  Simone Monika Ritter ,  Benedikt Ziebarth

    IPC: C03C3/068 ,  C03C4/00

    CPC classification number: C03C3/068 ,  C03C4/0092 ,  C03C2204/00

    Abstract: A glass article has a refractive index nG≥1.95 and an R-number in a range of from 0.900 to 1.050. The R-number is calculated according to the following formula:




    R
    =


    (


    n
    G

    -
    1

    )

    ⁢


    (



    ln
    [




    λ
    G
    2

    -

    λ
    min
    2




    λ
    G
    2

    -

    λ
    max
    2



    ·


    λ
    max
    2


    λ
    min
    2



    ]


    42
    ⁢


    ln
    [




    λ
    B
    2

    -

    λ
    min
    2




    λ
    B
    2

    -

    λ
    max
    2



    ·



    λ
    R
    2

    -

    λ
    max
    2




    λ
    R
    2

    -

    λ
    min
    2




    ]



    +

    1
    2.8


    )

    .






    λR=656 nm, λG=587 nm and λB=486 nm, λmin=33 nm, and nG is a refractive index of the glass article at a wavelength of 587 nm.

    DEVICE COMPRISING OPTICAL ELEMENTS OF SELECTED REFRACTIVE INDEX
    8.
    发明申请
    DEVICE COMPRISING OPTICAL ELEMENTS OF SELECTED REFRACTIVE INDEX 有权

    公开(公告)号：US20210096376A1

    公开(公告)日：2021-04-01

    申请号：US17035241

    申请日：2020-09-28

    Applicant: SCHOTT AG

    Inventor： Simone Monika Ritter ,  Antoine Carré ,  Peter Naß ,  Frank-Thomas Lentes

    IPC: G02B27/01 ,  G06K9/00 ,  G06F3/01

    Abstract: The present disclosure relates to a device, in particular an augmented reality device. In particular, the disclosure relates to a device, a kit, a process for making the device, and a process for making a visual impression.
    The present disclosure relates to a device including: a. a grouping of x optical elements, each optical element having a front face and a back face, the x optical elements being arranged in a stack from first to last in which the front face of an optical element faces the back face of the next optical element, and b. a spacer region made of a material having a refractive index below 1.4 for vacuum wavelengths in the range from 400 to 760 nm located between each pair of adjacent optical elements, and: x is an integer at least 3, the grouping of x optical elements comprises a first R-type optical element, a first G-type optical element and a first B-type optical element, R610 is the refractive index of the first R-type optical element for light of vacuum wavelength 610 nm; R760 is the refractive index of the first R-type optical element for light of vacuum wavelength 760 nm; G500 is the refractive index of the first G-type optical element for light of vacuum wavelength 500 nm; G610 is the refractive index of the first G-type optical element for light of vacuum wavelength 610 nm; B400 is the refractive index of the first B-type optical element for light of vacuum wavelength 400 nm; B500 is the refractive index of the first B-type optical element for light of vacuum wavelength 500 nm; n0 is the minimum selected from R760, G610 and B500; δ is the difference between n0 and the maximum selected from R610, G500 and B400; n0 is in the range from 1.55 to 2.50; δ is equal to or less than 0.20.

    Light guide plate for augmented reality devices
    9.
    发明授权
    Light guide plate for augmented reality devices 有权

    公开(公告)号：US11906746B2

    公开(公告)日：2024-02-20

    申请号：US17956258

    申请日：2022-09-29

    Applicant: Schott AG

    Inventor： Simone Monika Ritter ,  Bianca Schreder

    IPC: G02B27/01 ,  F21V8/00

    CPC classification number: G02B27/0172 ,  G02B6/0065

    Abstract: A light guide plate includes: an optical glass, the optical glass having a refractive index nd of at least 1.75 or of at least 1.80 and including Nb2O5 in an amount of at least 15 mol % and P2O5 in an amount of at least 19 mol %, the light guide plate having an internal transmission of at least 0.80 or of at least 0.90, measured at a wavelength of 440 nm and a sample thickness of 10 mm.

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