Patents Assigned to Limo Patentverwaltung GmbH & Co. KG
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Publication number: 20130119030Abstract: A method and an apparatus for heat treating a wafer-shaped base material of a solar cell, in particular of a crystalline or polycrystalline silicon solar cell, wherein the device comprises at least one laser light source (4a, 4b).Type: ApplicationFiled: February 3, 2011Publication date: May 16, 2013Applicant: LIMO PATENTVERWALTUNG GMBH & CO. KGInventor: Paul Alexander Harten
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Patent number: 8422148Abstract: A device for shaping laser radiation, in particular for laser radiation emitted by a laser diode bar, has at least one substrate with a plurality of refractive boundary surfaces through which the laser radiation to be produced can pass in such a way that at least two partial beams of the laser radiation, which, prior to their passage, are adjacently arranged in a first direction, are adjacently arranged after their passage through the refractive boundary surfaces in a second direction which is perpendicular to the first direction. The refractive boundary surfaces are formed at a substrate or at substrates that are connected to one another.Type: GrantFiled: June 25, 2008Date of Patent: April 16, 2013Assignee: LIMO Patentverwaltung GmbH & Co. KGInventors: Björn Langer, Andre Timmermann
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Patent number: 8416500Abstract: A device for beam forming includes at least two laser light sources capable of emitting laser radiation and an optical device capable of influencing the laser radiation such that the laser radiation has an intensity distribution in a working plane that at least partially corresponds to a top-hat distribution at least with regard to one direction. The laser beam may be at least partially overlapped by the optical device. The laser beam is a single-mode laser beam at least with regard to a direction perpendicular to the distribution direction.Type: GrantFiled: June 5, 2009Date of Patent: April 9, 2013Assignee: Limo Patentverwaltung GmbH & Co. KGInventors: Thomas Mitra, Lutz Aschke, Daniel Bartoschewski
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Patent number: 8395844Abstract: An apparatus for homogenizing light, including a lens array (5, 7, 8) with a plurality of lenses (6, 9, 10) through which the light to be homogenized can pass. The apparatus has at least two different center-to-center distances of the lenses (6, 9, 10) of the lens array (5, 7, 8), wherein the center-to-center distances of the lenses (6, 9, 10) decrease or increase from the inside to the outside.Type: GrantFiled: June 26, 2007Date of Patent: March 12, 2013Assignee: Limo Patentverwaltung GmbH & Co. KGInventors: Thomas Mitra, Andreas Bayer, Heiko Sebastian, Torsten Steinbrück
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Publication number: 20130056450Abstract: A device for applying laser radiation to an at least partially reflective or transparent region or a workpiece disposed in a working area, with a laser light source for generating the laser radiation and optics for influencing the laser radiation, such that the radiation is transferred into the working area, wherein the optics comprise at least one mirror that can reflect a part of the laser radiation reflected in the working area or a part of the laser radiation having passed through the working area, such that said part of the laser radiation is at least partially fed hack into the working area.Type: ApplicationFiled: March 23, 2011Publication date: March 7, 2013Applicant: LIMO PATENTVERWALTUNG GMBH & CO. KGInventors: Vitalij Lissotschenko, Aleksei Mikhailov, Nikolai Jeremin, Yury Kolotushkin
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Patent number: 8270084Abstract: A beam forming device produces a linear intensity distribution on a work plane. The device contains a laser light source that can emit laser radiation, an optical device that can transfer the laser radiation in a linear intensity distribution on the work plane, and lens that are used to influence the linear intensity distribution on the work plane and that can be displaced in the direction of diffusion of the laser radiation. The intensity profile can be modified perpendicular to the extension of the linear intensity distribution by modifying the position of the lens in the direction of diffusion of the laser radiation.Type: GrantFiled: November 15, 2008Date of Patent: September 18, 2012Assignee: LIMO Patentverwaltung GmbH & Co. KGInventor: Iouri Mikliaev
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Publication number: 20120127723Abstract: A device for producing laser radiation includes a homogenizer device which can separately homogenize a plurality of groups of partial beams of laser radiation in such a way that each group of partial beams proceeding from the homogenizer device can produce a line-shaped intensity distribution in a work plane, with the distribution having flanks which drop steeply at the line ends. The device further includes a superposition device for superpositioning the groups of partial beams in such a way that a line-shaped or linear intensity distribution having a length longer than the length of each of the line-shaped intensity distributions of the groups of partial beams can be produced in a work plane, wherein the superposition device includes a lens array having a plurality of lenses.Type: ApplicationFiled: May 12, 2010Publication date: May 24, 2012Applicant: LIMO PATENTVERWALTUNG GMBH & CO. KGInventors: Aleksei Mikhailov, Yury Kolotushkin
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Patent number: 8081386Abstract: Device for illuminating an area, in particular for illuminating a mask (14), for example for a lithographic application, with at least one light source (1) for producing light (3) that can be used for the illumination, optics means (2) for shaping the light (3) produced by the at least one light source (1), and separation means (4, 4?, 4?) capable of dividing the light (3) to be used for the illumination into several mutually separated partial beams (5), so that these partial beams (5) can illuminate the area to be illuminated with a spacing therebetween. The present invention also relates to a device for applying light to a work area.Type: GrantFiled: December 22, 2008Date of Patent: December 20, 2011Assignee: LIMO Patentverwaltung GmbH & Co. KGInventors: Dirk Hauschild, Manfred Jarczynski, Thomas Mitra
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Publication number: 20110305023Abstract: A device for homogenizing laser radiation has at least in a first direction perpendicular to a direction of propagation of the laser radiation partial beams spaced apart from each other, in particular for homogenizing laser radiation emanating from a laser diode bar, an array of refractive surfaces, which can deflect at least a majority of the partial beams of the laser radiation to be homogenized in such different manners that the beams run at least partially more convergingly to each other after passing through the refractive surfaces than before passing through the refractive surfaces. The device further has a lens device through which the partial beams, which have passed the array of refractive surfaces, can pass, wherein the lens device can superimpose at least some of the partial beams in a working plane.Type: ApplicationFiled: February 23, 2010Publication date: December 15, 2011Applicant: LIMO PATENTVERWALTUNG GMBH & CO. KGInventors: Daniel Bartoschewski, Manfred Jarczynski
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Publication number: 20110299172Abstract: A device for homogenizing laser radiation contains a plurality of mirror elements which are arranged offset with respect to one another and at which the laser radiation to be homogenized can be reflected in such a way that it is split into a plurality of partial beams corresponding to the number of mirror elements. The partial beams have a path difference with respect to one another as a result of the reflection. The device further has a plurality of lens elements, each of which is respectively assigned to one of the mirror elements in such a way that a respective one of the partial beams can pass through one of the lens elements. A distance between each of the mirror elements and the lens elements assigned thereto is equal to the focal length of the respective lens element.Type: ApplicationFiled: February 17, 2010Publication date: December 8, 2011Applicant: LIMO PATENTVERWALTUNG GMBH & CO. KGInventors: Aleksei Mikhailov, Yury Kolotushkin
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Publication number: 20110286101Abstract: A device forms laser radiation which has partial beams interspaced in a first direction that is perpendicular to the direction of propagation of the laser radiation, especially for forming laser radiation which is emitted by a laser diode bar. The device contains a plurality of reflective surfaces on which at least one of the interspaced partial beams can be reflected in such a manner that the distances of the partial beams are smaller relative to each other after reflection than before reflection.Type: ApplicationFiled: January 21, 2010Publication date: November 24, 2011Applicant: LIMO PATENTVERWALTUNG GMBH & CO. KGInventor: Udo Fornahl
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Publication number: 20110157706Abstract: A device for beam forming includes at least two laser light sources capable of emitting laser radiation and an optical device capable of influencing the laser radiation such that the laser radiation has an intensity distribution in a working plane that at least partially corresponds to a top-hat distribution at least with regard to one direction. The laser beam may be at least partially overlapped by the optical device. The laser beam is a single-mode laser beam at least with regard to a direction perpendicular to the distribution direction.Type: ApplicationFiled: June 5, 2009Publication date: June 30, 2011Applicant: LIMO PATENTVERWALTUNG GMBH & CO. KGInventors: Thomas Mitra, Lutz Aschke, Daniel Bartoschewski
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Publication number: 20110110626Abstract: An apparatus for forming laser radiation. The apparatus can form the laser radiation such that the laser radiation can enter an optical fiber. The apparatus contains a first lens device for deflection and/or imaging or collimation of the laser radiation with respect to a first direction, and a second lens device for deflection and/or imaging or collimation of the laser radiation with respect to a second direction. The first and the second lens devices are provided in or on a component.Type: ApplicationFiled: October 1, 2010Publication date: May 12, 2011Applicant: LIMO PATENTVERWALTUNG GMBH & CO. KGInventors: LUTZ ASCHKE, ANDREAS BAYER, UDO FORNAHL, JENS MEINSCHIEN, THOMAS MITRA
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Publication number: 20110051253Abstract: An apparatus for homogenizing light, including a lens array (5, 7, 8) with a plurality of lenses (6, 9, 10) through which the light to be homogenized can pass. The apparatus has at least two different center-to-center distances of the lenses (6, 9, 10) of the lens array (5, 7, 8), wherein the center-to-center distances of the lenses (6, 9, 10) decrease or increase from the inside to the outside.Type: ApplicationFiled: June 26, 2007Publication date: March 3, 2011Applicant: LIMO PATENTVERWALTUNG GMBH & CO. KGInventors: Thomas Mitra, Andreas Bayer, Heiko Ganser, Torsten Steinbruck
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Patent number: 7859758Abstract: A device for homogenizing light has a first lens array provided with a number of convex lenses, and at least one second lens array disposed at a distance from the first lens array in the beam scattering direction and through which the light refracted by the first lens array can pass. The second lens array is formed with a number of first lenses that are respectively arranged at a distance from each other. At least one of the first lenses of the second lens array is associated with each convex lens of the first lens array. The convex lenses of the first lens array have a smaller curvature than the first lenses of the second lens array associated with said convex lenses.Type: GrantFiled: March 28, 2008Date of Patent: December 28, 2010Assignee: Limo Patentverwaltung GmbH & Co. KGInventors: Heiko Ganser, Thomas Mitra
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Publication number: 20100309559Abstract: A beam forming device produces a linear intensity distribution on a work plane. The device contains a laser light source that can emit laser radiation, an optical device that can transfer the laser radiation in a linear intensity distribution on the work plane, and lens that are used to influence the linear intensity distribution on the work plane and that can be displaced in the direction of diffusion of the laser radiation. The intensity profile can be modified perpendicular to the extension of the linear intensity distribution by modifying the position of the lens in the direction of diffusion of the laser radiation.Type: ApplicationFiled: November 15, 2008Publication date: December 9, 2010Applicant: LIMO PATENTVERWALTUNG GMBH & CO. KGInventor: Iouri Mikliaev
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Patent number: 7810938Abstract: A laser configuration for machining a workpiece includes a plurality of laser light sources for introducing a laser radiation into a predeterminable working area. Some or all of the laser light sources are disposed on an arc of a circle.Type: GrantFiled: April 6, 2007Date of Patent: October 12, 2010Assignee: Limo Patentverwaltung GmbH & Co. KGInventors: Vitalij Lissotschenko, Aleksei Mikhailov
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Patent number: 7782535Abstract: A device for beam shaping is particularly suited for producing a linear intensity distribution in a working plane. The device includes a laser light source, which can emit a multi-mode laser radiation. The beam quality factor of the radiation with regard to a first direction perpendicular to the propagation direction of the laser radiation is greater than 1 and also the beam quality factor with regard to a second direction perpendicular to the propagation direction is greater than 1. The device further includes a beam transformation assembly, which are arranged in the device in such a way that they can transform the laser radiation or partial beams of the laser radiation in such a way that the beam quality factor with regard to the first direction is increased and that the beam quality factor with regard to the second direction is reduced.Type: GrantFiled: November 28, 2007Date of Patent: August 24, 2010Assignee: Limo Patentverwaltung GmbH & Co. KGInventors: Iouri Mikliaev, Vitalij Lissotschenko, Aleksei Mikhailov, Maxim Darsht
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Patent number: 7768705Abstract: An optical irradiation device for the polarization of alkali metal atoms for the hyperpolarization of noble gases by spin exchange includes at least one semiconductor laser device which can generate laser light which, with regard to its wavelength, is suitable for the polarization of the alkali metal atoms. A polarizer effects circular polarization of the laser light generated by the semiconductor laser device. A device for introducing the laser light into a working region in which the alkali metal atoms to be polarized can be present, and a device for defining a wavelength of the laser light, which can couple part of the laser light back into the semiconductor laser device in order thereby to define the wavelength of the laser light at a predetermined wavelength or a predetermined wavelength range.Type: GrantFiled: June 8, 2005Date of Patent: August 3, 2010Assignee: Limo Patentverwaltung GmbH & Co. KGInventors: Thomas Mitra, Markus Revermann, Frank Felice
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Patent number: 7738178Abstract: A laser assembly is suitable for coupling laser light into at least one optical fiber. The laser assembly contains a plurality of laser light sources disposed spaced from a light entrance surface of the at least one optical fiber. The laser light sources are divided into at least one group of first laser light sources and at least one group of second laser light sources. An aperture is provided and is suitable for spatially confining the laser light emitted during operation of the laser light sources before being coupled into the at least one optical fiber. A coupling device is provided and is suitable for coupling the laser light during operation of the first and second laser light sources before it enters into the at least one optical fiber.Type: GrantFiled: February 19, 2008Date of Patent: June 15, 2010Assignee: Limo Patentverwaltung GmbH & Co. KGInventors: Daniel Bartoschewski, Björn Langer