Patents by Inventor Andreas Voitsch
Andreas Voitsch has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230002270Abstract: A formed or non-flat formed glass is provided that exhibits high transmittance to electromagnetic radiation in a range of wavelengths from 200 nm to 1500 nm. The transmittance for the formed or non-flat formed glass having a thickness of 1 mm is 20% or more at a wavelength of 254 nm, 82% or more at a wavelength of 300 nm, 90% or more at a wavelength of 350 nm, 92% or more at a wavelength of 546 nm, 92.5% or more at a wavelength of 1400 nm, 91.5% or more in a wavelength range from 380 nm to 780 nm, and 92.5% or more in a wavelength range from 780 nm to 1500 nm.Type: ApplicationFiled: September 5, 2022Publication date: January 5, 2023Applicant: SCHOTT AGInventors: Gerhard Lautenschläger, Andreas Krieg, Andreas Voitsch, Axel Engel, Christian Pitzel, Matthias Schmidt, Thomas Kloss
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Patent number: 11465929Abstract: A flat glass is provided that exhibits high transmittance to electromagnetic radiation in a range of wavelengths from 200 nm to 1500 nm. The transmittance for the flat glass having a thickness of 1 mm is 20% or more at a wavelength of 254 nm, 82% or more at a wavelength of 300 nm, 90% or more at a wavelength of 350 nm, 92% or more at a wavelength of 546 nm, 92.5% or more at a wavelength of 1400 nm, 91.5% or more in a wavelength range from 380 nm to 780 nm, and 92.5% or more in a wavelength range from 780 nm to 1500 nm.Type: GrantFiled: May 17, 2019Date of Patent: October 11, 2022Assignee: SCHOTT AGInventors: Gerhard Lautenschläger, Andreas Krieg, Andreas Voitsch, Axel Engel, Christian Pitzel, Matthias Schmidt, Thomas Kloss
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Publication number: 20190352217Abstract: A flat glass is provided that exhibits high transmittance to electromagnetic radiation in a range of wavelengths from 200 nm to 1500 nm. The transmittance for the flat glass having a thickness of 1 mm is 20% or more at a wavelength of 254 nm, 82% or more at a wavelength of 300 nm, 90% or more at a wavelength of 350 nm, 92% or more at a wavelength of 546 nm, 92.5% or more at a wavelength of 1400 nm, 91.5% or more in a wavelength range from 380 nm to 780 nm, and 92.5% or more in a wavelength range from 780 nm to 1500 nm.Type: ApplicationFiled: May 17, 2019Publication date: November 21, 2019Applicant: SCHOTT AGInventors: Gerhard Lautenschläger, Andreas Krieg, Andreas Voitsch, Axel Engel, Christian Pitzel, Matthias Schmidt, Thomas Kloss
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Patent number: 9952378Abstract: A light guide plate for guiding of visible light for the backlighting of a liquid crystal display is provided. The light guide plate has two parallel lateral faces and at least one edge face, which serves preferably as a light input face. The light guide plate is a glass that contains B2O3 and SiO2 as components, wherein the total content of B2O3 and SiO2 is at least 70 weight percent and the B2O3 content is greater than 10%. The total content of metal oxide of divalent metals in the composition of the glass is less than 3 weight percent. Al2O3 is contained between 1 weight percent and 5 weight percent in the composition.Type: GrantFiled: August 17, 2016Date of Patent: April 24, 2018Assignee: SCHOTT AGInventors: Gerhard Lautenschläger, Thomas Kloss, Jochen Alkemper, Matthias Schmidt, Andreas Voitsch
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Publication number: 20170052311Abstract: A light guide plate for guiding of visible light for the backlighting of a liquid crystal display is provided. The light guide plate has two parallel lateral faces and at least one edge face, which serves preferably as a light input face. The light guide plate is a glass that contains B2O3 and SiO2 as components, wherein the total content of B2O3 and SiO2 is at least 70 weight percent and the B2O3 content is greater than 10%. The total content of metal oxide of divalent metals in the composition of the glass is less than 3 weight percent. Al2O3 is contained between 1 weight percent and 5 weight percent in the composition.Type: ApplicationFiled: August 17, 2016Publication date: February 23, 2017Applicant: SCHOTT AGInventors: Gerhard Lautenschläger, Thomas Kloss, Jochen Alkemper, Matthias Schmidt, Andreas Voitsch
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Publication number: 20080145794Abstract: The present invention relates to a new class of compound useful as liquid for immersion lithography, said liquid comprising molecules so that said liquid is substantially transparent at a wavelength used for said liquid immersion lithography, wherein a degree of polarization of light, which is incident on a sample of said liquid in a forward direction and which is scattered in a direction perpendicular to said forward direction within a plane of scattering defined by said forward direction and said direction perpendicular to said forward direction, is larger than 0.9. Suited liquids are, for example, such comprising molecules transparent to UV radiation, wherein said molecules are high-symmetric molecules. Suited compounds are defined by A(R)4 wherein A is defined to be a 4-valent element and R is selected from —(C)n— and —(Si)n—, with n=1 to 10, wherein the remaining valences of the carbon or silica are saturated by one (or more) selected from hydrogen and a halogen.Type: ApplicationFiled: February 21, 2008Publication date: June 19, 2008Inventors: Martin Letz, Konrad Knapp, Hauke Esemann, Andreas Voitsch
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Publication number: 20050186513Abstract: The present invention relates to a new class of compound useful as liquid for immersion lithography, said liquid comprising molecules so that said liquid is substantially transparent at a wavelength used for said liquid immersion lithography, wherein a degree of polarization of light, which is incident on a sample of said liquid in a forward direction and which is scattered in a direction perpendicular to said forward direction within a plane of scattering defined by said forward direction and said direction perpendicular to said forward direction, is larger than 0.9. Suited liquids are, for example, such comprising molecules transparent to UV radiation, wherein said molecules are high-symmetric molecules. Suited compounds are defined by A(R)4 wherein A is defined to be a 4-valent element and R is selected from —(C)n— and —(Si)n—, with n=1 to 10, wherein the remaining valences of the carbon or silica are saturated by one (or more) selected from hydrogen and a halogen.Type: ApplicationFiled: February 24, 2004Publication date: August 25, 2005Inventors: Martin Letz, Konrad Knapp, Hauke Esemann, Andreas Voitsch
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Patent number: 6920766Abstract: A synthetic quartz glass preform is produced by flame hydrolysis with subsequent cooling and is suitable for the application of high-energy DUV radiation in the wave length range under 250 nm. The preform has a core area which contains ?1150 ppm OH, a strain double refraction of ?5 nm/cm and a resistance to high-energy DUV radiation as a result of a transmission reduction of ?T ?0.1%/cm thickness. The quartz glass has been exposed to the following radiation: wavelength ?1=248 nm, laser shot frequency ?300 Hz, laser shot value ?109 and lumination ?10 mJ/cm2, and wavelength ?2=193 nm, laser shot frequency ?300 Hz, laser shot value ?109 and lumination <5 mJ/cm2. Apparatus for producing the preform comprises a horizontally positioned muffle with two different sized openings facing each other. The larger of the openings is for removing the preform, the smaller opening being for introducing a burner. The internal chamber of the muffle narrows from the larger opening to the smaller opening.Type: GrantFiled: May 30, 2002Date of Patent: July 26, 2005Assignee: Schott ML GmbHInventors: Frank Coriand, Andreas Menzel, Andreas Voitsch
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Patent number: 6595030Abstract: A device for producing optically homogeneous, streak-free quartz glass bodies having a large diameter including a furnace or melting device having an inner chamber with a pair of openings opposite one another. One or more movable burners are displaceable into one of the openings and the respective glass body to be produced is located in the other opening. Both the burner and glass body are movably positioned. In the course of the production of the quartz glass body, a relative movement is effected in the axial and radial directions between the burner and the quartz glass body such that the distance from the burner outlet opening pertaining to the quartz glass body decreases as the distance from the burner to the X-X axis of the quartz glass body increases.Type: GrantFiled: July 3, 2001Date of Patent: July 22, 2003Inventors: Hartmut Bauch, Hraban Hack, Frank Rudiger, Thomas Schindelbeck, Rolf Martin, Andreas Menzel, Matthias Schmidt, Roland Scholz, Andreas Voitsch
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Publication number: 20020148256Abstract: A synthetic quartz glass preform is produced by flame hydrolysis with subsequent cooling and is suitable for the application of high-energy DUV radiation in the wave length range under 250 nm. The preform has a core area which contains ≧1150 ppm OH, a strain double refraction of ≦5 nm/cm and a resistance to high-energy DUV radiation as a result of a transmission reduction of &Dgr;T≦0.1%/cm thickness. The quartz glass has been exposed to the following radiation: wavelength &lgr;1=248 nm, laser shot frequency≧300 Hz, laser shot value≧109 and lumination≦10 mJ/cm2, and wavelength &lgr;2=193 nm, laser shot frequency≧300 Hz, laser shot value≧109 and lumination<5 mJ/cm2. Apparatus for producing the preform comprises a horizontally positioned muffle with two different sized openings facing each other. The larger of the openings is for removing the preform, the smaller opening being for introducing a burner.Type: ApplicationFiled: May 30, 2002Publication date: October 17, 2002Applicant: Schott ML GmbHInventors: Frank Coriand, Andreas Menzel, Andreas Voitsch
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Patent number: 6423656Abstract: The invention relates to a synthetic quartz glass preform which is produced according to the flame hydrolysis technique with subsequent cooling and is suitable for the application of high-energy DUV radiation in the wave length range under 250 nm. Said preform has a core area which contains ≧1150 ppm OH, a strain double refraction of ≦5 nm/cm and a resistance to high-energy DUV radiation as a result of a transmission reduction of &Dgr; T ≦0.1 %/cm thickness. The quartz glass has been exposed to the following radiation: wavelength &lgr;1=248 nm, laser shot frequency ≧300 Hz, laser shot value ≧109 and rumination ≦10 mJ/cm2, and wavelength &lgr;2=193 nm, laser shot frequency ≧300 Hz, laser shot value ≧109 and rumination ≦5 mJ/cm2. A device for producing said preform comprises a horizontally positioned muffle with two different-sized openings facing each other. The larger of said openings is for removing the preform, the smaller opening being for introducing a burner.Type: GrantFiled: September 10, 1999Date of Patent: July 23, 2002Assignee: Schott ML GmbHInventors: Frank Coriand, Andreas Menzel, Andreas Voitsch