中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

17 records (took 0.022 seconds)

    THREE-DIMENSIONALLY FORMED THIN GLASS
    11.
    发明申请
    THREE-DIMENSIONALLY FORMED THIN GLASS 有权

    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.

    APPARATUS AND METHOD FOR TESTING THE STRENGTH OF SHEETS MADE OF HARD BRITTLE MATERIAL
    12.
    发明申请
    APPARATUS AND METHOD FOR TESTING THE STRENGTH OF SHEETS MADE OF HARD BRITTLE MATERIAL 审中-公开
    用于测试硬质材料片材强度的装置和方法

    公开(公告)号：US20170074762A1

    公开(公告)日：2017-03-16

    申请号：US15261409

    申请日：2016-09-09

    Applicant: SCHOTT AG

    Inventor： Martin Lotze ,  Thomas Rossmeier ,  Clemens Ottermann ,  Volker Seibert

    IPC: G01N3/26 ,  G01N3/08 ,  G01N19/08

    CPC classification number: G01N3/20 ,  G01N33/386 ,  G01N2203/0017 ,  G01N2203/0248 ,  G01N2203/0282

    Abstract: A method for testing the strength of a sheet-like element having two opposite faces and made of hard brittle material under tensile stress is provided. The method includes passing each of the faces of the element over a roller and thereby bending the element so that each of the faces is subjected to a first tensile stress in a portion in which the opposite face is in contact with a surface of the roller; exerting a second tensile force on the element in the direction of advancement so that both faces are subjected to the second tensile stress of at least 2 MPa so that the first and second tensile stresses add up to define a resultant tensile stress; and monitoring the element and determining whether the element has a defined breaking strength equal to the resultant tensile stress or whether the element breaks under the resultant tensile stress.

    Abstract translation: 提供了一种用于在拉伸应力下测试具有两个相对面并由硬脆材料制成的片状元件的强度的方法。 该方法包括将元件的每个面通过辊子，从而使元件弯曲，使得每个表面在相对面与辊的表面接触的部分中经受第一拉伸应力; 在推进方向上在元件上施加第二张力，使得两个面经受至少2MPa的第二拉伸应力，使得第一和第二拉伸应力相加以限定合成的拉伸应力; 并监测元件并确定元件是否具有等于所得到的拉伸应力的定义的断裂强度，或者该元素是否在所得的拉伸应力下断裂。

    Mirror and mirror substrate with high aspect ratio, and method and means for producing such a mirror substrate
    13.
    发明授权
    Mirror and mirror substrate with high aspect ratio, and method and means for producing such a mirror substrate 有权

    公开(公告)号：US12265240B2

    公开(公告)日：2025-04-01

    申请号：US16535401

    申请日：2019-08-08

    Applicant: SCHOTT AG

    Inventor： Martin Schaefer ,  Marco Weisenburger ,  Volker Seibert ,  Thomas Westerhoff

    IPC: G02B5/10 ,  C03B19/02 ,  C03C10/00 ,  G02B7/183

    Abstract: A mirror, a mirror substrate, a method for producing are provided. The mirror substrate is made of a material having a coefficient of mean linear thermal expansion of less than or equal to 1*10−6/K. The mirror substrate includes at least one feature selected from a group consisting of: a ratio of a lateral dimension to a maximum thickness of at least 100, a ratio of the lateral dimension to the maximum thickness of at least 150, a ratio of the lateral dimension to the maximum thickness of at least 200, a ratio of the lateral dimension to the maximum thickness of at least 300, a weight per unit area of 100 kg/m2 or less, a weight per unit area of 50 kg/m2 or less, a weight per unit area of 30 kg/m2 or less, a weight per unit area of 15 kg/m2 or less, a mirror surface with a roughness (Ra) of at most 3.5 μm, and a mirror surface with a roughness (Ra) of less than 1.2 μm.

    Method for testing the strength of sheets made of hard brittle material under tensile stress
    15.
    发明授权
    Method for testing the strength of sheets made of hard brittle material under tensile stress 有权

    公开(公告)号：US10571376B2

    公开(公告)日：2020-02-25

    申请号：US15261409

    申请日：2016-09-09

    Applicant: SCHOTT AG

    Inventor： Martin Lotze ,  Thomas Roßmeier ,  Clemens Ottermann ,  Volker Seibert

    IPC: G01N33/38 ,  G01N3/20

    Abstract: A method for testing the strength of a sheet-like element having two opposite faces and made of hard brittle material under tensile stress is provided. The method includes passing each of the faces of the element over a roller and thereby bending the element so that each of the faces is subjected to a first tensile stress in a portion in which the opposite face is in contact with a surface of the roller; exerting a second tensile force on the element in the direction of advancement so that both faces are subjected to the second tensile stress of at least 2 MPa so that the first and second tensile stresses add up to define a resultant tensile stress; and monitoring the element and determining whether the element has a defined breaking strength equal to the resultant tensile stress or whether the element breaks under the resultant tensile stress.

Patent Agency Ranking