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公开(公告)号：US20210003838A1
公开(公告)日：2021-01-07
申请号：US16920784
申请日：2020-07-06
Applicant: SCHOTT AG
Inventor： Volker Hagemann , Albrecht Seidl , Sylvia Biedenbender , Günter Weidmann
Abstract: An optical converter wheel, a method of producing, and a method of using are provided. The wheel includes an inorganic converter material that converts light of a first wavelength into light of a second wavelength and a converter substrate. The converter substrate has a coefficient of thermal expansion CTEKS of 4 to 18×10−6 1/K in a range from 20° C.-300° C. and a thermal conductivity of at least 50 W/mK at 20° C.
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12.发明申请公开(公告)号：US20180117708A1
公开(公告)日：2018-05-03
申请号：US15858705
申请日：2017-12-29
Applicant: Schott AG
Inventor： Andreas Ortner , Niklas Bisch , Fabian Wagner , Albrecht Seidl , Frank-Thomas Lentes
IPC: B23K26/0622 , C03C23/00 , B23K26/06
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.
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公开(公告)号：US20240110675A1
公开(公告)日：2024-04-04
申请号：US18478136
申请日：2023-09-29
Applicant: Schott AG
Inventor： Albrecht Seidl , Volker Hagemann
Abstract: An illumination 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 back side, the light conversion element being configured for being illuminated with the primary light and for emitting a secondary light with a wavelength altered relative to the primary light, the light conversion element being configured, on illumination with the primary light, for emitting the secondary light which is characterized by a spectrum which defines a point in a CIE 1931 color space at least one of that: (i) together with a blue point and a red point of an REC709 window defines an area which covers at least 95% of the REC709 window; and (ii) has a radial distance from a green point of the REC709 window that is at most 0.02.
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公开(公告)号：US20240060623A1
公开(公告)日：2024-02-22
申请号：US18450705
申请日：2023-08-16
Applicant: Schott AG
Inventor： Albrecht Seidl , Volker Hagemann
CPC classification number: F21V9/30 , C09K11/7774 , F21V7/30 , G01N21/55 , G01N2021/555
Abstract: A lighting device includes: a light conversion unit including a light conversion element including a material containing an optically active element from lanthanoids, wherein:
the light conversion element includes a front side, a rear side, and a thickness (t),
the light conversion element is set up for an irradiation on the front side with a primary light (I0), for a diffuse reflectance of the primary light (IREM), for a specular reflection of the primary light (IFRE), and for a diffuse emission of a secondary light (IEM) with an altered wavelength compared to the primary light, and
the light conversion unit has a specific diffuse reflectance SDR=t−1·IREM/(I0−IFRE), such that a luminous flux emitted by the light conversion unit at an irradiance limit of the light conversion unit with regard to a variation in the proportion of the optically active element is at most 4 mm−1 away from a maximum.-
公开(公告)号：US11884573B2
公开(公告)日：2024-01-30
申请号：US16804597
申请日：2020-02-28
Applicant: SCHOTT AG
Inventor： Andreas Ortner , Albrecht Seidl , Frank-Thomas Lentes , Fabian Wagner
IPC: C03B33/02 , B23K26/53 , B23K26/0622 , B32B17/00 , B23K103/00
CPC classification number: C03B33/0222 , B23K26/0624 , B23K26/53 , B32B17/00 , B23K2103/54 , Y10T428/24777
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.
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Patent Agency Ranking
公开(公告)号：US11618707B2
公开(公告)日：2023-04-04
申请号：US16459914
申请日：2019-07-02
Applicant: SCHOTT AG
Inventor： Fabian Wagner , Volker Plapper , Andreas Ortner , Simon Schmitt , Frank-Thomas Lentes , Albrecht Seidl , Antal Makacs , Patrick Bartholome
IPC: B23K26/53 , C03B33/02 , B23K26/00 , B23K103/00
Abstract: A method for separating a substrate of a brittle-hard material is provided. The method includes the steps of introducing defects into the substrate at a spacing from one another along a separation line using at least one pulsed laser beam; selecting an average spacing between neighboring defects and a number of laser pulses for generating a respective defect such that a breaking stress (σB) for separating the substrate along the separation line is smaller than a first reference stress (σR1) of the substrate and such that an edge strength σK of the separation edge obtained after separation is greater than a second reference stress (σR2) of the substrate; and separating the substrate after introducing the defects by applying a stress along the separation line.
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公开(公告)号：US11572301B2
公开(公告)日：2023-02-07
申请号：US15871716
申请日：2018-01-15
Applicant: SCHOTT AG
Inventor： Fabian Wagner , Andreas Ortner , Albrecht Seidl , Frank-Thomas Lentes , Jörn Gerban , Simon Schmitt
IPC: C03B33/04 , C03B33/09 , B23K26/53 , C03B33/02 , B23K103/00
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.
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公开(公告)号：US11215812B2
公开(公告)日：2022-01-04
申请号：US16920784
申请日：2020-07-06
Applicant: SCHOTT AG
Inventor： Volker Hagemann , Albrecht Seidl , Sylvia Biedenbender , Günter Weidmann
Abstract: An optical converter wheel, a method of producing, and a method of using are provided. The wheel includes an inorganic converter material that converts light of a first wavelength into light of a second wavelength and a converter substrate. The converter substrate has a coefficient of thermal expansion CTEKS of 4 to 18×10−6 1/K in a range from 20° C.-300° C. and a thermal conductivity of at least 50 W/mK at 20° C.
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公开(公告)号：US11148231B2
公开(公告)日：2021-10-19
申请号：US15945992
申请日：2018-04-05
Applicant: SCHOTT AG
Inventor： Andreas Ortner , Albrecht Seidl , Frank-Thomas Lentes , Fabian Wagner
IPC: B23K26/53 , B23K26/042 , B23K26/0622 , B23K26/351 , B23K26/046 , B23K26/08 , B23K101/40
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.
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公开(公告)号：US20210003909A1
公开(公告)日：2021-01-07
申请号：US16919246
申请日：2020-07-02
Applicant: SCHOTT AG
Inventor： Volker Hagemann , Albrecht Seidl
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.
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