公开(公告)号：US09371248B2

公开(公告)日：2016-06-21

申请号：US14249825

申请日：2014-04-10

Applicant: Schott AG

Inventor： Oliver Hochrein ,  Inge Burger ,  Irmgard Westenberger ,  Jochen Alkemper ,  Gerd Rudas ,  Katharina Alt ,  Gordon Kissl ,  Gunther Paulus

IPC: C03C3/093 ,  C03C21/00

CPC classification number: C03C3/093 ,  C03C21/002

Abstract: A glass element is provided that is made of a glass having SiO2, Al2O3, B2O3, and Na2O. The glass has a scratch tolerance that when scratches of 1 mm length are introduced using a Knoop diamond indenter which presses upon a surface of the glass with a force of 4 Newton and is displaced along the surface with a traverse speed of 0.4 mm/s, not more than 20% of the scratches have a noticeable width including visible chipping of more than 25 μm. In some embodiments, the glass, after chemical tempering, has sodium ions that are at least partially exchanged for potassium ions so that a compressive stress zone is provided at the surface of the glass. The compressive stress is at least 700 MPa and an exchange depth of alkali ions is at least 25 μm.

Abstract translation: 提供了由具有SiO 2，Al 2 O 3，B 2 O 3和Na 2 O的玻璃制成的玻璃元件。 该玻璃具有划痕公差，当使用Knoop金刚石压头引入1mm长度的划痕时，其以4牛顿的力压在玻璃表面上，并以0.4mm / s的移动速度沿表面移位， 不超过20％的刮痕具有明显的宽度，包括可见的碎裂超过25μm。 在一些实施方案中，玻璃在化学回火之后具有至少部分地与钾离子交换的钠离子，使得在玻璃表面处提供压应力区。 压缩应力为700MPa以上，碱离子的交换深度为25μm以上。

公开(公告)号：US20220204382A1

公开(公告)日：2022-06-30

申请号：US17698250

申请日：2022-03-18

Applicant: SCHOTT AG

Inventor： Michael Meister ,  Katharina Alt ,  Volker Seibert ,  Ulrich Lange ,  Stephan Corvers

IPC: C03B23/035

Abstract: The present disclosure relates to a thin glass for an optical component that includes a first side with a first surface and a second side opposite the first side with a second surface. The thin glass has a three-dimensional shape with at least one target curvature and a thickness of less than 700 μm. On at least one first measurement area of 3×3 mm2 of the first surface, all surface structure components in a wavelength range of 0.1 mm to 1 mm have an arithmetical mean height Sa of below 30 nm, below 20 nm, below 10 nm, or below 8 nm. On the first measurement area, all surface structure components in a wavelength range from 0.1 mm to 1 mm can have an arithmetical mean height Sa of between 1 nm and 30 nm, between 3 nm and 20 nm, or between 6 nm and 10 nm. The values for the arithmetical mean height refer to a measurement by means of white light interferometry, with a bandpass filtering of 0.1 mm to 1 mm, i.e. with a bandpass filtering for viewing surface structure components in wavelength ranges from 0.1 mm to 1 mm.

公开(公告)号：US20140309097A1

公开(公告)日：2014-10-16

申请号：US14249825

申请日：2014-04-10

Applicant: Schott AG

Inventor： Oliver Hochrein ,  Inge Burger ,  Irmgard Westenberger ,  Jochen Alkemper ,  Gerd Rudas ,  Katharina Alt ,  Gordon Kissl ,  Gunther Paulus

IPC: C03C3/093 ,  C03C4/18

CPC classification number: C03C3/093 ,  C03C21/002

Abstract: A glass element is provided that is made of a glass having SiO2, Al2O3, B2O3, and Na2O. The glass has a scratch tolerance that when scratches of 1 mm length are introduced using a Knoop diamond indenter which presses upon a surface of the glass with a force of 4 Newton and is displaced along the surface with a traverse speed of 0.4 mm/s, not more than 20% of the scratches have a noticeable width including visible chipping of more than 25 μm. In some embodiments, the glass, after chemical tempering, has sodium ions that are at least partially exchanged for potassium ions so that a compressive stress zone is provided at the surface of the glass. The compressive stress is at least 700 MPa and an exchange depth of alkali ions is at least 25 μm.

Abstract translation: 提供了由具有SiO 2，Al 2 O 3，B 2 O 3和Na 2 O的玻璃制成的玻璃元件。 该玻璃具有划痕公差，当使用Knoop金刚石压头引入1mm长度的划痕时，其以4牛顿的力压在玻璃表面上，并以0.4mm / s的移动速度沿表面移位， 不超过20％的刮痕具有明显的宽度，包括可见的碎裂超过25μm。 在一些实施方案中，玻璃在化学回火之后具有至少部分地与钾离子交换的钠离子，使得在玻璃表面处提供压应力区。 压缩应力为700MPa以上，碱离子的交换深度为25μm以上。

公开(公告)号：US20140308525A1

公开(公告)日：2014-10-16

申请号：US14249836

申请日：2014-04-10

Applicant: Schott AG

Inventor： Oliver Hochrein ,  Inge Burger ,  Irmgard Westenberger ,  Jochen Alkemper ,  Gerd Rudas ,  Katharina Alt ,  Gordon Kissl ,  Gunther Paulus

IPC: C03C3/093 ,  C03C21/00 ,  C03C4/18

CPC classification number: C03C3/093 ,  C03C4/18 ,  C03C21/002 ,  Y10T428/315

Abstract: A glass and a glass composition are provided that, following chemical tempering, not only exhibit high values of compressive stress and depth of ion exchange, but also excellent scratch tolerance. The glass composition includes SiO2, Al2O3, B2O3, ZrO2, and Na2O.

Abstract translation: 提供玻璃和玻璃组合物，其在化学回火后不仅表现出高的压应力值和离子交换深度，而且具有优异的耐刮擦性。 玻璃组合物包括SiO 2，Al 2 O 3，B 2 O 3，ZrO 2和Na 2 O。