Patents Assigned to Ledvance GmbH
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Patent number: 10267500Abstract: Various embodiments may relate to an end cap for a lamp tube of an illuminating device, including a mounting ring fixedly mounted to one end of the lamp tube by means of an assembled end, and a cover plate for closing the mounting ring at a free end. The end cap further includes a rotating ring mounted between the mounting ring and the cover plate at the free end, the cover plate rotatably closes the mounting ring by means of the rotating ring. Further various embodiments relate to an illuminating device adopting the end cap.Type: GrantFiled: May 28, 2014Date of Patent: April 23, 2019Assignee: LEDVANCE GMBHInventors: Junnan He, Yunsong Zhang, Quansheng Liu, Shijun Nie
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Patent number: 10269551Abstract: The invention relates to a high-pressure discharge lamp having an ignition aid and comprising a discharge vessel, which is accommodated in an outer bulb. The ignition aid is a UV enhancer having a can-like container (12), which has an inner electrode (18). At least part of the end-face edge of the inner electrode at least comes close to the end face (24) of the container (12). An external electrode is attached to the outside of the container.Type: GrantFiled: July 26, 2012Date of Patent: April 23, 2019Assignee: LEDVANCE GMBHInventors: Johannes Buttstaedt, Uwe Fidler, Stefan Lichtenberg, Georg Rosenbauer
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Patent number: 10253929Abstract: Disclosed is a lamp (1) comprising a driver circuit board (16) and a base (2) which are electrically connected to one another by a plug connector (3, 17). The invention applies to semiconductor lamps, for example, especially LED lamps, in particular retrofit lamps, e.g. to replace conventional incandescent lamps or halogen lamps.Type: GrantFiled: October 12, 2015Date of Patent: April 9, 2019Assignee: LEDVANCE GMBHInventors: Klaus Eckert, Michael Rosenauer
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Patent number: 10215343Abstract: A lighting device comprises a holder for LED filaments. The holder has a first electrically conductive holding structure and a second electrically conductive holding structure. Each holding structure comprises an essentially longitudinal connection section and an attachment section essentially perpendicular to the connection section.Type: GrantFiled: September 15, 2017Date of Patent: February 26, 2019Assignee: LEDVANCE GMBHInventors: Lene Haberkorn, HuaLi Yu, Klaus Eckert, Baijin Xu, Lambert Frye, Jitao Liu, Qian Xie, Liqin Li
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Patent number: 10208944Abstract: The semiconductor lamp (1) is equipped with a heat sink (2, 3) which has a first part (2) and a second part (3) connected to each other by way of a press fit and which together delimit a receptacle (10, 12) for a driver (5), the first part (2) having an insert region (8) for insertion into the second part (3), which insert region consists of spring elements (21) that can be pushed inwards. The invention is particularly useful for retrofit lamps, in particular incandescent or halogen retrofit lamps.Type: GrantFiled: February 4, 2015Date of Patent: February 19, 2019Assignee: LEDVANCE GMBHInventors: Carolin Mühlbauer, Klaus Eckert
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Patent number: 10212769Abstract: The invention provides a driver circuit, an LED lighting tube and a method for providing a controlled DC output power. An open loop control is used for controlling the DC output power in the case that a voltage of an AC input power is in a first voltage range. A closed loop control is used for controlling the DC output power in the case that the voltage of the AC input power is in a second voltage range.Type: GrantFiled: December 11, 2017Date of Patent: February 19, 2019Assignee: LEDVANCE GMBHInventors: Shaoping Chen, ShiYu Ding, Hui Ye
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Patent number: 10197223Abstract: A semiconductor lamp (1) has at least one semiconductor light source (8) arranged on a front face (7) of a substrate (6) and a driver circuit (11) for activating the at least one semiconductor light source (8), at least part of the driver circuit (11) being secured on a rear face (10) of the substrate (6), facing away from the at least one semiconductor light source (8). The invention can be used, in particular, for retrofit lamps, in particular incandescent- or halogen retrofit lamps.Type: GrantFiled: April 29, 2015Date of Patent: February 5, 2019Assignee: LEDVANCE GMBHInventors: Thomas Weng, Stefan Ringler, Thomas Klafta, Marianne Auernhammer
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Patent number: 10197239Abstract: The present invention relates to an illumination apparatus (100) comprising a light engine (3) and a first lampshade (1) for accommodating the light engine (3), wherein the first lampshade (1) has a first expansion coefficient, wherein the illumination apparatus (100) further comprises a second lampshade (2) for accommodating the first lampshade (1), wherein the second lampshade (2) has a second expansion coefficient smaller than the first expansion coefficient, and is configured such that the changes in size or shape of the first lampshade (1) can be restrained under a high temperature.Type: GrantFiled: April 30, 2015Date of Patent: February 5, 2019Assignee: LEDVANCE GMBHInventors: Jun Liu, Qihui Zhang
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Patent number: 10190727Abstract: Various embodiments may relate to a lighting device, which includes a lamp tube having two open ends, a light engine arranged in the lamp tube, a carrier supporting the light engine, and two end caps closing the open ends. The lighting device further includes a diffuser. The carrier supporting the light engine is held on the diffuser, and the diffuser is held on the inner wall of the lamp tube.Type: GrantFiled: February 14, 2014Date of Patent: January 29, 2019Assignee: LEDVANCE GMBHInventors: Dezhao Zhang, Jun Liu, Mortiz Engl, MingTao Wang
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Patent number: 10194504Abstract: A lighting system is provided. The lighting system includes at least one light-emitting diode and a monitoring output, and a fault signal is present at the monitoring output in the event of a defect of the light-emitting diode during operation of the lighting system. The lighting system also includes a switch for switching a connection between a current source and the light-emitting diode. The lighting system further includes a comparator which is coupled with the monitoring output and the switch. The current source is disconnected from the light-emitting diode in an activated state of the switch, and the comparator is configured to switch the switch into the activated state when the fault signal is present at the monitoring output.Type: GrantFiled: November 7, 2017Date of Patent: January 29, 2019Assignee: LEDVANCE GMBHInventor: Andreas Mitze
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Patent number: 10190728Abstract: The invention relates to an optoelectronic lamp with improved omni-directionality by using a reflector cap having an opening.Type: GrantFiled: November 26, 2014Date of Patent: January 29, 2019Assignee: LEDVANCE GMBHInventors: Tobias Schmidt, Christopher Wiesmann, Stephan Malkmus
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Patent number: 10158205Abstract: The present invention relates to an electric connector and an illuminating device comprising this electric connector, wherein the electric connector comprises a housing and an end cap connected to the housing, wherein an conductor which can be connected to a power supply is arranged in the end cap, wherein the conductor comprises a stationary part and a movable part, wherein the conductor is rotatable relative to the housing along with the end cap from a first position to a second position, wherein the movable parts at least partially retract into the stationary part in the first position, and at least one movable part extends out of the stationary part in the second position so as to be in electric connection with a power consumption component arranged in the housing.Type: GrantFiled: November 9, 2015Date of Patent: December 18, 2018Assignee: LEDVANCE GMBHInventors: Haitao Wen, Jun Liu
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Patent number: 10125960Abstract: Various embodiments may relate to a semiconductor lamp having at least one semiconductor light source, including multiple separately produced components, wherein at least two of the components are connected to one another by means of joint extrusion coating. Various embodiments further relate to a method for producing a semiconductor lamp having at least one semiconductor light source. The method includes at least, inserting at least one open driver housing and a cover for the driver housing into an injection mold, and extrusion coating the components inserted into the mold using potting material so that these components are permanently connected to one another by the potting material.Type: GrantFiled: August 22, 2014Date of Patent: November 13, 2018Assignee: LEDVANCE GmbHInventors: Thomas Klafta, Hubertus Breier, Michael Rosenauer, Marianne Auernhammer
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Publication number: 20180261943Abstract: In various embodiments, a reflector lamp having a longitudinal axis is provided. The reflector lamp may include: a reflector which has a contour and a neck, with a pin base resting at the end of said neck, a light source arranged in the reflector, wherein the light source is fastened in the reflector with the aid of a mounting clip, which simultaneously adjusts the light source, wherein the mounting clip comprises three sections, namely a first section which holds the light source, a second section which serves for the adjustment in the neck and a third section which is used for the base connection.Type: ApplicationFiled: May 8, 2018Publication date: September 13, 2018Applicant: LEDVANCE GMBHInventor: Andreas Nittke
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Patent number: 10047942Abstract: The present invention relates to a connector device for an illumination apparatus and an illumination apparatus comprising this connector device. The connector device comprises a stationary element for connecting to the illumination apparatus, a first movable element for connecting to a power supply, a second movable element rotatably connected to the stationary element, and a locking element arranged between the stationary element and the second movable element, wherein rotation of the second movable element in a first direction drives the locking element to release locking of the second movable element, and when the second movable element continues to be rotated in the first direction and drives the first movable element to rotate together, rotation of the first movable element enables the locking element to release locking of the first movable element.Type: GrantFiled: February 4, 2015Date of Patent: August 14, 2018Assignee: LEDVANCE GmbHInventors: Jun Liu, Shijun Nie
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Patent number: 10041658Abstract: Various embodiments may relate to an illuminating device including a housing, an electronic assembly accommodated in the housing, and at least one adjusting mechanism arranged on at least one side of the electronic assembly, the adjusting mechanism is in operative connection with the electronic assembly and is operated from outside of the housing so that the electronic assembly is tensionedly held in the housing.Type: GrantFiled: June 27, 2013Date of Patent: August 7, 2018Assignee: LEDVANCE GmbHInventors: Hao Li, Xiaomian Chen, Peng Chen, ChengCheng Feng
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Patent number: 10024528Abstract: Various embodiments may relate to an illuminating device including a light engine, a housing and a driver contained in the housing, wherein the illuminating device further includes a heat dissipation device disposed in the housing which includes a substrate for supporting the light engine and an insert ring in thermal-conductive contact with the substrate.Type: GrantFiled: July 21, 2014Date of Patent: July 17, 2018Assignee: LEDVANCE GmbHInventors: Rencheng Li, Tingbiao Lan, Ran Lin, Zhian Li
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Publication number: 20180187880Abstract: A lamp is provided, the lamp comprising at least one LED module and a first housing part, wherein the LED module is sealed to the first housing part against environmental influences jointly by a first sealing member and a sealing compound.Type: ApplicationFiled: December 27, 2017Publication date: July 5, 2018Applicant: LEDVANCE GmbHInventors: Jun Liu, Shijun NIE, Haitao WEN
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Patent number: 10004134Abstract: In various embodiments, a reflector lamp having a longitudinal axis is provided. The reflector lamp may include: a reflector which has a contour and a neck, with a pin base resting at the end of said neck, a light source arranged in the reflector, wherein the light source is fastened in the reflector with the aid of a mounting clip, which simultaneously adjusts the light source, wherein the mounting clip comprises three sections, namely a first section which holds the light source, a second section which serves for the adjustment in the neck and a third section which is used for the base connection.Type: GrantFiled: October 17, 2013Date of Patent: June 19, 2018Assignee: LEDVANCE GMBHInventor: Andreas Nittke
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Patent number: 10001262Abstract: Various embodiments may relate to an LED retrofit lamp, including a lamp tube, an LED light engine disposed in the lamp tube, and end caps arranged at two open ends of the lamp tube, the LED light engine including a circuit board and at least one light source disposed on the circuit board. The LED retrofit lamp further includes one pair of retaining structures fixed at two opposite ends of the circuit board, respectively, and at least one pair of elastic tension structures connected to the retaining structures. The elastic tension structure goes through the end cap from one side of the end cap and is locked at the other side of the end cap. In addition, various embodiments may also relate to a process for manufacturing the LED retrofit lamp.Type: GrantFiled: June 27, 2013Date of Patent: June 19, 2018Assignee: LEDVANCE GMBHInventors: Hao Li, Xiaomian Chen, Peng Chen, Tingming Liu