Patents by Inventor Stefan Lichtenberg
Stefan Lichtenberg 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).
-
Publication number: 20190248272Abstract: A lighting device for a vehicle including a high-resolution headlamp, which has a light influencer for the targeted influencing of individual pixels or groups of pixels of the light emanating from at least one light source and/or a plurality of light sources arranged in a matrix for the targeted generation of individual pixels or groups of pixels of the light emanating from the headlamp during operation, as well as an adjuster for adjusting the beam range of the headlamp which can control the light influencer and/or the light sources for purposes of changing the beam range, wherein the adjuster for adjusting the beam range additionally includes a mechanical adjuster.Type: ApplicationFiled: April 24, 2019Publication date: August 15, 2019Applicant: HELLA GMBH & CO. KGAAInventors: Karol GOLDSCHMIDT, Frank GRUETER, Stefan LICHTENBERG, Carsten WILKS
-
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
-
Patent number: 9053921Abstract: A high-pressure discharge lamp having an ignition aid, may include a discharge vessel which is fitted in an outer bulb, wherein a UV enhancer is fitted as an ignition aid in the outer bulb, wherein the UV enhancer comprises a UV-transparent can-like container having an inner wall and end side and longitudinal axis, the container enclosing with its inner wall a cavity which is filled with a gas that can emit UV radiation, an inner vent electrode, which has at least one bend or kink, being fitted in the cavity in such a way that a bend or kink lie as close as possible to the inner wall of the container, and wherein an external electrode is applied externally in the vicinity of the container.Type: GrantFiled: July 28, 2011Date of Patent: June 9, 2015Assignee: Osram GmbHInventors: Johannes Buttstaedt, Uwe Fidler, Stefan Lichtenberg, Georg Rosenbauer
-
Patent number: 8896204Abstract: A high-pressure discharge lamp with a starting aid, may include a discharge vessel, wherein the discharge vessel has two ends with seals, in which electrodes are fastened, wherein the starting aid is fitted on the outside of the discharge vessel, wherein the starting aid has a local field amplifier having a configuration with at least one tip or edge or structure with a small radius of curvature, and wherein the starting aid produces a corona discharge which emits UV radiation into the discharge vessel.Type: GrantFiled: May 22, 2012Date of Patent: November 25, 2014Assignee: OSRAM GmbHInventors: Simon Lankes, Stefan Lichtenberg
-
Publication number: 20140239803Abstract: 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: ApplicationFiled: July 26, 2012Publication date: August 28, 2014Applicant: OSRAM GMBHInventors: Johannes Buttstaedt, Uwe Fidler, Stefan Lichtenberg, Georg Rosenbauer
-
Publication number: 20140117846Abstract: A high-pressure discharge lamp having an ignition aid, may include a discharge vessel which is fitted in an outer bulb, wherein a UV enhancer is fitted as an ignition aid in the outer bulb, wherein the UV enhancer comprises a UV-transparent can-like container having an inner wall and end side and longitudinal axis, the container enclosing with its inner wall a cavity which is filled with a gas that can emit UV radiation, an inner vent electrode, which has at least one bend or kink, being fitted in the cavity in such a way that a bend or kink lie as close as possible to the inner wall of the container, and wherein an external electrode is applied externally in the vicinity of the container.Type: ApplicationFiled: July 28, 2011Publication date: May 1, 2014Applicant: OSRAM GmbHInventors: Johannes Buttstaedt, Uwe Fidler, Stefan Lichtenberg, Georg Rosenbauer
-
Publication number: 20140091706Abstract: A high-pressure discharge lamp with a starting aid, may includ a discharge vessel, wherein the discharge vessel has two ends with seals, in which electrodes are fastened, wherein the starting aid is fitted on the outside of the discharge vessel, wherein the starting aid has a local field amplifier having a configuration with at least one tip or edge or structure with a small radius of curvature, and wherein the starting aid produces a corona discharge which emits UV radiation into the discharge vessel.Type: ApplicationFiled: May 22, 2012Publication date: April 3, 2014Applicant: OSRAM GMBHInventors: Simon Lankes, Stefan Lichtenberg
-
Patent number: 8664855Abstract: A high-pressure discharge lamp having an ignition aid may be provided, having a discharge vessel that is surrounded by gas, wherein the discharge vessel includes two ends having fusings in which electrodes are secured, wherein an ignition aid is fastened on at least one fusing, wherein the ignition aid has a local field amplifier in the form of a tip or a curved part, wherein the ignition aid is configured to cause a corona discharge in the surrounding gas which emits UV radiation into the discharge vessel.Type: GrantFiled: October 8, 2010Date of Patent: March 4, 2014Assignee: Osram AGInventors: Johannes Buttstaedt, Stefan Dunkel, Leon Grabinski, Janbernd Hentschel, Bernd Koch, Stefan Lichtenberg, Martin Tueshaus
-
Patent number: 8618734Abstract: A high-pressure discharge lamp having an ignition aid is provided. The discharge lamp may include: a discharge vessel consisting of ceramic or quartz glass which is sealed at two ends and which is accommodated in an outer bulb which is likewise sealed at two ends, the discharge vessel having two ends in which electrodes are fastened, two power supply lines holding the discharge vessel in the outer bulb, a UV enhancer with a single electrode as ignition aid being accommodated in the outer bulb, wherein the UV enhancer is positioned in the vicinity of a second end of the discharge vessel, while a feed line is routed from the first power supply line along the discharge vessel and is connected to the UV enhancer, the feed line being capacitively coupled to the first power supply line, the UV enhancer being installed between the feed line and the second power supply line.Type: GrantFiled: July 8, 2011Date of Patent: December 31, 2013Assignee: OSRAM AGInventors: Johannes Buttstaedt, Stefan Lichtenberg
-
Publication number: 20130181604Abstract: A high-pressure discharge lamp having an ignition aid may be provided, having a discharge vessel that is surrounded by gas, wherein the discharge vessel includes two ends having fusings in which electrodes are secured, wherein an ignition aid is fastened on at least one fusing, wherein the ignition aid has a local field amplifier in the form of a tip or a curved part, wherein the ignition aid is configured to cause a corona discharge in the surrounding gas which emits UV radiation into the discharge vessel.Type: ApplicationFiled: October 8, 2010Publication date: July 18, 2013Applicant: OSRAM AGInventors: Johannes Buttstaedt, Stefan Dunkel, Leon Grabinski, Janbernd Hentschel, Bernd Koch, Stefan Lichtenberg, Martin Tueshaus
-
Patent number: 8450939Abstract: A method for igniting and for starting high-pressure discharge lamps is provided. The method may include applying a takeover voltage to the lamp for a predetermined time of a burst; superimposing ignition pulses on the takeover voltage in such a way that the voltage of the ignition pulses and the takeover voltage are added up and an interruption being provided between two bursts; and changing the ignition pulses from burst to burst or within a burst from the positive half-cycle of the takeover voltage to the negative half-cycle of the takeover voltage, and vice versa.Type: GrantFiled: May 7, 2007Date of Patent: May 28, 2013Assignee: OSRAM AGInventors: Bernd Koch, Stefan Lichtenberg
-
Publication number: 20130113371Abstract: A high-pressure discharge lamp having an ignition aid is provided. The discharge lamp may include: a discharge vessel consisting of ceramic or quartz glass which is sealed at two ends and which is accommodated in an outer bulb which is likewise sealed at two ends, the discharge vessel having two ends in which electrodes are fastened, two power supply lines holding the discharge vessel in the outer bulb, a UV enhancer with a single electrode as ignition aid being accommodated in the outer bulb, wherein the UV enhancer is positioned in the vicinity of a second end of the discharge vessel, while a feed line is routed from the first power supply line along the discharge vessel and is connected to the UV enhancer, the feed line being capacitively coupled to the first power supply line, the UV enhancer being installed between the feed line and the second power supply line.Type: ApplicationFiled: July 8, 2011Publication date: May 9, 2013Applicant: OSRAM AGInventors: Johannes Buttstaedt, Stefan Lichtenberg
-
Patent number: 8319450Abstract: A method for igniting and for starting high-pressure discharge lamps is provided. The method may include applying a takeover voltage to the lamp for a predetermined time of a burst; superimposing ignition pulses on the takeover voltage in such a way that the voltage of the ignition pulses and the takeover voltage are added up and an interruption being provided between two bursts; and changing the ignition pulses from burst to burst or within a burst from the positive half-cycle of the takeover voltage to the negative half-cycle of the takeover voltage, and vice versa.Type: GrantFiled: May 7, 2007Date of Patent: November 27, 2012Assignee: OSRAM AGInventors: Bernd Koch, Stefan Lichtenberg
-
Publication number: 20100270939Abstract: A method for operating a high pressure discharge lamp with the aid of a high frequency signal is disclosed. The high pressure discharge lamp comprises at least one first (14a) and one second electrode (14b), the first (14a) and the second electrodes (14b) being arranged in such a way that the electrode tips (18a, 18b) are situated opposite one another, a filament (16a, 16b) respectively being arranged in the region of the electrode tips (18a, 18b). The high pressure discharge lamp runs through the following phases in a start phase before its stationary operation: a delay phase, a breakdown phase, an electrode heating phase and a burner heating phase. After termination of the electrode heating phase, the first (14a) and the second electrodes (14b) are driven within at least one prescribable time duration in such a way that the high pressure discharge lamp is operated with the aid of a lamp current (Iboost) that is higher than the rated lamp current (Inenn).Type: ApplicationFiled: April 28, 2010Publication date: October 28, 2010Applicant: OSRAM Gesellschaft mit beschrankter HaftungInventors: Stefan LICHTENBERG, Joachim MÜHLSCHLEGEL
-
Publication number: 20100141165Abstract: A method for igniting and for starting high-pressure discharge lamps is provided. The method may include applying a takeover voltage to the lamp for a predetermined time of a burst; superimposing ignition pulses on the takeover voltage in such a way that the voltage of the ignition pulses and the takeover voltage are added up and an interruption being provided between two bursts; and changing the ignition pulses from burst to burst or within a burst from the positive half-cycle of the takeover voltage to the negative half-cycle of the takeover voltage, and vice versa.Type: ApplicationFiled: May 7, 2007Publication date: June 10, 2010Applicant: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNGInventors: Bernd Koch, Stefan Lichtenberg