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    MULTI-FIBER LIGHT GUIDE, DEVICE WITH A MULTI-FIBER LIGHT GUIDE AND METHOD FOR PRODUCING THE SAME
    42.
    发明公开
    MULTI-FIBER LIGHT GUIDE, DEVICE WITH A MULTI-FIBER LIGHT GUIDE AND METHOD FOR PRODUCING THE SAME 审中-公开

    公开(公告)号：EP3904306A8

    公开(公告)日：2022-05-25

    申请号：EP20172235.2

    申请日：2020-04-30

    申请人： SCHOTT AG

    发明人： CHAI, Wee Kiat ,  HETTLER, Robert ,  WEISSHUHN, Julia ,  STEIGLEDER, Jan

    IPC分类号： C03C21/00 ,  G02B6/08

    摘要： A multi-fiber light guide (1) comprising
    - a multitude of light guiding fibers (3), each of the fibers (3) comprising
    - an elongated glass core (5), wherein
    - the cores (5) are surrounded by a glass cladding (7) so that
    - the cladding (7) with the cores (5) form a rigid continuous glass element (9), and
    - wherein the cores (5) have a higher refractive index than the cladding (7) so that light can be guided by total reflection along the glass cores (5), and wherein the glass element (9) of the multi-fiber light guide (1) has two abutting faces (10, 11), with the cores (5) ending in both abutting faces (10, 11), so that light can be guided along the cores (5) from one abutting face (10) to the other abutting face (11), and wherein
    - the glasses of the cores (5) and the cladding (7) contain alkali ions, and wherein
    - the alkali ions of the glasses are at least partly exchanged by alkali ions of a higher atomic number within an ion exchange layer (13) at each of the abutting faces (10, 11), the exchanged alkali ions within the ion exchange layer (13) imparting a compressive stress at the abutting faces (10, 11) .

    GLASSES AND GLASS CERAMICS INCLUDING A METAL OXIDE CONCENTRATION GRADIENT
    50.
    发明公开
    GLASSES AND GLASS CERAMICS INCLUDING A METAL OXIDE CONCENTRATION GRADIENT 审中-公开

    公开(公告)号：EP3896042A1

    公开(公告)日：2021-10-20

    申请号：EP20206983.7

    申请日：2015-10-08

    申请人： Corning Incorporated

    发明人： HU, Guangli ,  SMITH, Charlene Marie ,  TANG, Zhongzhi ,  TIETJE, Steven Alvin

    IPC分类号： C03C21/00 ,  C03C3/00 ,  C03C10/00 ,  C03C23/00

    摘要： Embodiments of a glass-based article including a first surface and a second surface opposing the first surface defining a thickness ( t ) of about 3 millimeters or less (e.g., about 1 millimeter or less), and a stress profile, wherein all points of the stress profile between a thickness range from about 0• t up to 0.3• t and from greater than 0.7• t , comprise a tangent that is less than about -0.1 MPa/micrometers or greater than about 0.1 MPa/micrometers,, are disclosed. In some embodiments, the glass-based article includes a non-zero metal oxide concentration that varies along at least a portion of the thickness (e.g., 0• t to about 0.3• t ). In some embodiments, the concentration of metal oxide or alkali metal oxide decreases from the first surface to a point between the first surface and the second surface and increases from the point to the second surface. The concentration of the metal oxide may be about 0.05 mol% or greater or about 0.5 mol% or greater throughout the thickness. Methods for forming such glass-based articles are also disclosed.