Patents by Inventor Jan Grof
Jan Grof 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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Patent number: 11098873Abstract: The light device comprises a housing (1) covered with a transparent or semi-transparent cover (2) that delimit an inner chamber (3) inside the housing (1), a light unit (5) situated in the chamber (3) and equipped with at least one light source, a cooler (4) associated with the light unit (5), and a tubular cooling conduit (7) that passes through an opening (10) in the housing (1) into the chamber (3) to supply cooling medium (8) from the cooling medium (8) source installed outside the housing (1) to the cooler (4) and comprises a drive means (74) for forced flow of the cooling medium (8) in the tubular cooling conduit (7). The tubular cooling conduit (7) is connected to the cooler (4) in such a way that the cooling medium (8) does not escape from the tubular cooling conduit (7) and cooler (4) to the surrounding space in the chamber (3).Type: GrantFiled: September 15, 2020Date of Patent: August 24, 2021Assignee: Varroc Lighting Systems, s.r.o.Inventors: Dalibor Vlcek, Jan Kratochvil, Ondrej Hasa, Jan Grof
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Publication number: 20210080073Abstract: The light device comprises a housing (1) covered with a transparent or semi-transparent cover (2) that delimit an inner chamber (3) inside the housing (1), a light unit (5) situated in the chamber (3) and equipped with at least one light source, a cooler (4) associated with the light unit (5), and a tubular cooling conduit (7) that passes through an opening (10) in the housing (1) into the chamber (3) to supply cooling medium (8) from the cooling medium (8) source installed outside the housing (1) to the cooler (4) and comprises a drive means (74) for forced flow of the cooling medium (8) in the tubular cooling conduit (7). The tubular cooling conduit (7) is connected to the cooler (4) in such a way that the cooling medium (8) does not escape from the tubular cooling conduit (7) and cooler (4) to the surrounding space in the chamber (3).Type: ApplicationFiled: September 15, 2020Publication date: March 18, 2021Inventors: Dalibor Vlcek, Jan Kratochvil, Ondrej Hasa, Jan Grof
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Patent number: 10359166Abstract: A light device, especially a headlight for motor vehicles, comprises a holding bushing (1), covered by a translucent cover (2), and an inner chamber (3) having mounted there in an optical system (5) for generation of light rays and enabling of controlled selective changes of a light trace on a projection surface. The optical system includes a lens (51) and a light assembly (52) comprising at least one light source and a carrier to carry the light source. The lens is arranged in a fixed position with respect to the position of the translucent cover, and the position of the light assembly is selectively adjustable in a controlled way with respect to the position of the lens by movement of the light assembly in direction (A) and/or by movement in direction (B), wherein the directions (A) and (B) are substantially perpendicular to direction of optical axis (C) of the lens.Type: GrantFiled: July 26, 2016Date of Patent: July 23, 2019Assignee: Varroc Lighting Systems, S.R.O.Inventors: Jan Kratochvil, Ondrej Hasa, Jan Grof, Milos Macicek, Radek Orlita
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Patent number: 9995452Abstract: A light device, especially a headlight of motor vehicles, comprises at least one light unit (1), or a group (1a, 1b) of light units, at least one optical directing element (3, 2e, 3f), adapted to direct the light beam emitted by the light unit, or group of light units, to the required direction, and at least one output lens (4) for passage of at least a part of the light rays of the light beam or beams to create a light pattern (A, B, C) on the display surface (ZY). On the route of the light beam between the optical directing element and the output lens, there is at least one optical diaphragm element (11, 21, 31) containing a system of trim edges (13, 23, 33) to create the required shape of the cross-section of a part or parts of the light beam designed for transmission along the above-mentioned route.Type: GrantFiled: February 11, 2016Date of Patent: June 12, 2018Assignee: Varroc Lighting Systems, s.r.o.Inventors: Jan Kratochvil, Dana Pekarkova, Ondrej Hasa, Jan Grof, Milos Macicek, Zdenek Mikeska, Milan Kytka, Radek Orlita, Tomas David, David Hynar
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Patent number: 9797569Abstract: A headlight, especially a motor vehicle headlight, comprises a bushing (1) with a translucent cover (2) forming an inner chamber (3) including a light source (4), an optical system (5) for guiding the light beam from the light source, a cooling body having the light source mounted thereon and fitted with cooling elements (61) to extract heat from the heat source, and a cooling channel (7) for passage of the cooling media for heat extraction from the cooling elements. The cooling channel is closed with respect to the chamber to prevent the cooling media from passing through the chamber outside the cooling channel The body forms the wall of a part of the cooling channel, and the cooling elements face the inner space of the cooling channel. The part of the cooling channel whose wall comprises the cooling body is arranged in a controlled movable way in the inner chamber.Type: GrantFiled: December 15, 2015Date of Patent: October 24, 2017Assignee: VARROC LIGHTING SYSTEMS, S.R.O.Inventors: Jan Kratochvil, Stanislav Klimicek, Ondrej Hasa, Jan Grof, Milos Macicek
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Publication number: 20170030545Abstract: A light device, especially a headlight for motor vehicles, comprises a holding bushing (1), covered by a translucent cover (2), and an inner chamber (3) having mounted there in an optical system (5) for generation of light rays and enabling of controlled selective changes of a light trace on a projection surface. The optical system includes a lens (51) and a light assembly (52) comprising at least one light source and a carrier to carry the light source. The lens is arranged in a fixed position with respect to the position of the translucent cover, and the position of the light assembly is selectively adjustable in a controlled way with respect to the position of the lens by movement of the light assembly in direction (A) and/or by movement in direction (B), wherein the directions (A) and (B) are substantially perpendicular to direction of optical axis (C) of the lens.Type: ApplicationFiled: July 26, 2016Publication date: February 2, 2017Inventors: Jan Kratochvil, Ondrej Hasa, Jan Grof, Milos Macicek, Radek Orlita
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Publication number: 20160230948Abstract: A light device, especially a headlight of motor vehicles, comprises at least one light unit (1), or a group (1a, 1b) of light units, at least one optical directing element (3, 2e, 3f), adapted to direct the light beam emitted by the light unit, or group of light units, to the required direction, and at least one output lens (4) for passage of at least a part of the light rays of the light beam or beams to create a light pattern (A, B, C) on the display surface (ZY). On the route of the light beam between the optical directing element and the output lens, there is at least one optical diaphragm element (11, 21, 31) containing a system of trim edges (13, 23, 33) to create the required shape of the cross-section of a part or parts of the light beam designed for transmission along the above-mentioned route.Type: ApplicationFiled: February 11, 2016Publication date: August 11, 2016Inventors: Jan Kratochvil, Dana Pekarkova, Ondrej Hasa, Jan Grof, Milos Macicek, Zdenek Mikeska, Milan Kytka, Radek Orlita, Tomas David, David Hynar
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Publication number: 20160169497Abstract: A headlight, especially a motor vehicle headlight, comprises a bushing (1) with a translucent cover (2) forming an inner chamber (3) including a light source (4), an optical system (5) for guiding the light beam from the light source, a cooling body having the light source mounted thereon and fitted with cooling elements (61) to extract heat from the heat source, and a cooling channel (7) for passage of the cooling media for heat extraction from the cooling elements. The cooling channel is closed with respect to the chamber to prevent the cooling media from passing through the chamber outside the cooling channel The body forms the wall of a part of the cooling channel, and the cooling elements face the inner space of the cooling channel. The part of the cooling channel whose wall comprises the cooling body is arranged in a controlled movable way in the inner chamber.Type: ApplicationFiled: December 15, 2015Publication date: June 16, 2016Inventors: Jan Kratochvil, Stanislav Klimicek, Ondrej Hasa, Jan Grof, Milos Macicek