公开(公告)号：US11161766B2

公开(公告)日：2021-11-02

申请号：US15871728

申请日：2018-01-15

Applicant: SCHOTT AG

Inventor： Andreas Ortner ,  Albrecht Seidl ,  Frank-Thomas Lentes ,  Fabian Wagner

IPC: C03B33/02 ,  B23K26/53 ,  B23K26/0622 ,  B32B17/00 ,  B23K103/00

Abstract: A method is provided that includes producing filamentary damages in a volume of a glass or glass ceramic element adjacently aligned along a separation line and extend obliquely relative to a surface of the glass or glass ceramic element; and separating a portion from the glass or glass ceramic element along the separation line. The step of producing the filamentary damages includes directing laser pulses of an ultrashort pulse laser obliquely on the surface so that the laser pulses have a light propagation direction that extends obliquely relative to the surface and so that the filamentary damages resulting from the laser pulses have the longitudinal extension that extends obliquely relative to the surface; generating a plasma within the volume with the laser pulses; and displacing the laser pulses at points of incidence over the surface along the separation line.

公开(公告)号：US11280476B2

公开(公告)日：2022-03-22

申请号：US16233416

申请日：2018-12-27

Applicant: SCHOTT AG

Inventor： Keith Rozenburg ,  Martin Letz ,  Ulrike Stoehr ,  Albrecht Seidl

IPC: H01L33/50 ,  C04B38/00 ,  F21V9/30 ,  C04B35/44 ,  G02B5/20 ,  C09K11/77 ,  C04B35/626 ,  C04B35/01 ,  C04B111/80

Abstract: An optical converter is provided that has both a stable colour even at highest luminous powers and a high luminous efficiency. The optical converter includes a ceramic element that is fluorescent so that light of a first wavelength is absorbed in the ceramic element and fluorescent having longer wavelength light is emitted. The ceramic element includes pores spatially irregularly distributed within the ceramic element. The distribution of the pores within the ceramic element is inhomogeneous so that the radial distribution function of the pore locations deviates from unity and has a maximum at a characteristic distance, the maximum having a value of at least 1.2.

公开(公告)号：US10807902B2

公开(公告)日：2020-10-20

申请号：US16104510

申请日：2018-08-17

Applicant: SCHOTT AG

Inventor： Volker Plapper ,  Fabian Wagner ,  Andreas Ortner ,  Albrecht Seidl ,  Frank-Thomas Lentes

IPC: B32B3/10 ,  C03B33/02 ,  B24D3/00 ,  B23K26/0622 ,  B23K26/53 ,  B23K26/00 ,  B23K103/00

Abstract: A method for the production of glass or glass ceramic elements from flat glass or glass ceramic parts is provided where the edges of the glass or glass ceramic elements are treated by a combination of two processes. The flat glass or glass ceramic element with an edge surface connecting the two side surfaces is produced. The edge surface has at least one first elongated, strip-shaped edge region and at least one second elongated strip-shaped edge region, which are formed by a ground edge. The edge regions extend in the longitudinal direction along the edge surface and along the side surfaces. The first edge region has elongated parallel filamentary damages that are parallel and adjacent to one another and, in particular, spaced apart equidistantly, in the longitudinal direction thereof extending transversely to the side surfaces and along the surface of the first edge region.

公开(公告)号：US20200290152A1

公开(公告)日：2020-09-17

申请号：US16890656

申请日：2020-06-02

Applicant: Schott AG

Inventor： Andreas Ortner ,  Niklas Bisch ,  Fabian Wagner ,  Albrecht Seidl ,  Frank-Thomas Lentes

IPC: B23K26/0622 ,  B32B5/30 ,  B32B7/025 ,  B32B5/16 ,  C03B32/02 ,  C03C10/00 ,  B23K26/352 ,  B23K26/53 ,  B23K26/06 ,  C03C23/00

Abstract: A method provides for producing modifications in or on a transparent workpiece using a laser processing device. The laser processing device has a short pulse or ultrashort pulse laser that emits laser radiation having a wavelength in the transparency range of the workpiece and which has a beam-shaping optical unit for beam shaping for focusing the laser radiation. The transparent workpiece is composed of a material that has a plurality of phases, of which at least two phases have different dielectric constants, of which in turn the one phase is a phase embedded in the form of particles, which phase is substantially surrounded by the other phase, and wherein the product of the volume of the particles specified in cubic nanometers and the ratio of the absolute value of the difference of the two different dielectric constants to the dielectric constant of the surrounding phase is greater than 500.

公开(公告)号：US12220762B2

公开(公告)日：2025-02-11

申请号：US16687231

申请日：2019-11-18

Applicant: SCHOTT AG

Inventor： Andreas Ortner ,  Fabian Wagner ,  Albrecht Seidl ,  Simon Schmitt ,  Frank-Thomas Lentes ,  Jens Ulrich Thomas

IPC: B23K26/06 ,  B23K26/00 ,  B23K26/046 ,  B23K26/0622 ,  B23K26/064 ,  B23K26/066 ,  B23K26/08 ,  B23K26/53 ,  B23K101/40 ,  B23K103/00 ,  C03B33/02

Abstract: Devices and methods for processing a workpiece along a predetermined processing line are provided. The device includes: a pulsed, polychromatic laser beam generator; an optical arrangement; and a moving device. The laser beam generator generates a laser beam along a beam direction. The optical arrangement generates a focal line along the beam direction. The optical arrangement has a chromatic aberration for wavelength-dependent focusing of the laser beam and a filter for wavelength-dependent filtering of the laser beam. The moving device generates relative movement between the laser beam and the workpiece along the predetermined processing line.

公开(公告)号：US20240059965A1

公开(公告)日：2024-02-22

申请号：US18450823

申请日：2023-08-16

Applicant: Schott AG

Inventor： Albrecht Seidl ,  Ulrike Stöhr ,  Sylvia Biedenbender

IPC: F21V9/30 ,  C09K11/77 ,  C09K11/02

CPC classification number: F21V9/30 ,  C09K11/7774 ,  C09K11/02

Abstract: A lighting device includes: a light source configured for emitting a primary light; a light conversion unit formed by or including: a light conversion element including a front side and a rear side, wherein the light conversion element is configured for being illuminated by the primary light on the front side and for emitting a secondary light with an altered wavelength compared to the primary light on the front side, wherein the light conversion element includes a first phase including a light-converting ceramic material and a second phase including a further ceramic material, the second phase having a higher thermal conductivity than the first phase, and wherein the light conversion element includes a plurality of pores.

公开(公告)号：US10989385B2

公开(公告)日：2021-04-27

申请号：US16676670

申请日：2019-11-07

Applicant: Schott AG

Inventor： Albrecht Seidl ,  Volker Hagemann ,  Edgar Pawlowski ,  Frank Gindele

IPC: F21S41/16 ,  F21K9/69 ,  F21Y115/30

Abstract: A lighting device includes: at least one laser light source configured to emit a light beam; and a light conversion element associated with the at least one laser light source and arranged in the beam path of at least one light beam generated by at least one laser light source such that at least a portion of the light beam emitted by the at least one laser light source is directed onto the light conversion element, and in such a way that a laser light spot is illuminated on a face of the light conversion element facing the incident light beam, the light conversion element comprising a material which, through scattering, absorption and conversion of the incident laser light, emits and scatters light of a larger wavelength.

公开(公告)号：US12037279B2

公开(公告)日：2024-07-16

申请号：US18150122

申请日：2023-01-04

Applicant: SCHOTT AG

Inventor： Fabian Wagner ,  Andreas Ortner ,  Albrecht Seidl ,  Frank-Thomas Lentes ,  Jörn Gerban ,  Simon Schmitt

IPC: C03B33/09 ,  B23K26/53 ,  C03B33/02 ,  C03B33/04 ,  B23K103/00

CPC classification number: C03B33/091 ,  B23K26/53 ,  C03B33/0222 ,  C03B33/04 ,  B23K2103/54

Abstract: A method for separating a portion from a sheet glass element having a thickness of at least 2 millimeters along an intended separation line that divides the sheet glass element into the portion and a remaining main part is provided. The method includes producing filamentary damages comprising sub-micrometer hollow channels in a volume of the glass sheet element adjacently aligned along the separation line; and heating and/or cooling the glass sheet element to cause expansion and/or contraction so that the portion detaches from the main part along the separation line. The portion and the remaining main part each remain intact as a whole. The step of producing the filamentary damages includes generating a plasma within the volume with laser pulses of an ultrashort pulse laser; and displacing points of incidence of the laser pulses over a surface of the glass sheet element along the separation line.

公开(公告)号：US11860521B2

公开(公告)日：2024-01-02

申请号：US16919246

申请日：2020-07-02

Applicant: SCHOTT AG

Inventor： Volker Hagemann ,  Albrecht Seidl

IPC: G03B21/20 ,  C09K11/77 ,  G03B33/12 ,  G03B21/06 ,  G03B21/16

CPC classification number: G03B21/204 ,  C09K11/7794 ,  G03B21/16 ,  G03B33/12

Abstract: A light source is provided that includes a laser operable to emit laser light at a wavelength in a range from 460 nanometers to 470 nanometers and a converter assembly arranged so as to absorb the laser light emitted by the laser and to emit photoluminescent light produced by the laser light and having a longer wavelength than the laser light. The converter assembly has a converter element with a ceramic doped with Eu3+ such that under irradiation of the laser light the converter assembly emits photoluminescent light in the red spectral range.

公开(公告)号：US20220001496A1

公开(公告)日：2022-01-06

申请号：US17478110

申请日：2021-09-17

Applicant: SCHOTT AG

Inventor： Andreas Ortner ,  Fabian Wagner ,  Albrecht Seidl ,  Frank-Thomas Lentes

IPC: B23K26/53 ,  B23K26/042 ,  B23K26/0622 ,  B23K26/351 ,  B23K26/046 ,  B23K26/08

Abstract: A method for filamentation of a dielectric workpiece has a workpiece with a thickness between 0.5 and 20 mm is provided. The workpiece has boundary surfaces delimiting the workpiece. The thickness of the workpiece varies spatially and/or at least one of the boundary surfaces delimiting the workpiece has at least one curvature with a radius of curvature between 0.1 μm and 10 m. The dielectric workpiece can have a specially formed edge.