DE102004007278A1 - Interior lighting system especially suitable for aircraft, is controlled by pulsed switches in parallel with light emitting diodes, operated by control circuit - Google Patents
Interior lighting system especially suitable for aircraft, is controlled by pulsed switches in parallel with light emitting diodes, operated by control circuit Download PDFInfo
- Publication number
- DE102004007278A1 DE102004007278A1 DE102004007278A DE102004007278A DE102004007278A1 DE 102004007278 A1 DE102004007278 A1 DE 102004007278A1 DE 102004007278 A DE102004007278 A DE 102004007278A DE 102004007278 A DE102004007278 A DE 102004007278A DE 102004007278 A1 DE102004007278 A1 DE 102004007278A1
- Authority
- DE
- Germany
- Prior art keywords
- led light
- led
- parallel
- bridging element
- control circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/40—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors specially adapted for specific vehicle types
- B60Q3/41—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors specially adapted for specific vehicle types for mass transit vehicles, e.g. buses
- B60Q3/47—Circuits; Control arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/80—Circuits; Control arrangements
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/40—Details of LED load circuits
- H05B45/44—Details of LED load circuits with an active control inside an LED matrix
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/40—Details of LED load circuits
- H05B45/44—Details of LED load circuits with an active control inside an LED matrix
- H05B45/48—Details of LED load circuits with an active control inside an LED matrix having LEDs organised in strings and incorporating parallel shunting devices
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/20—Responsive to malfunctions or to light source life; for protection
- H05B47/23—Responsive to malfunctions or to light source life; for protection of two or more light sources connected in series
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
Description
Die Erfindung betrifft eine Beleuchtungsvorrichtung, die insbesondere für den Innenraum von Fahrzeugen und vorzugsweise von Flugzeugen geeignet ist und mehrere LED-Lichtquellen aufweist, die in Reihe geschaltet sind.The invention relates to a lighting device, which especially for suitable for the interior of vehicles and preferably aircraft and has several LED light sources that are connected in series are.
Eine derartige Beleuchtungsvorrichtung wird an das Gleichstrombordnetz von beispielsweise Fahrzeugen und insbesondere Flugzeugen angeschlossen. Sollen LED an die Gleichstromnetze von Fahrzeugen und insbesondere Flugzeugen angeschlossen werden, so ist es bekannt, die LED über Konstantstromquellen zu betreiben, um unterschiedlichen Vorwärtsspannungen sowie der Charakteristik der LED Rechnung zu tragen. Um die Anzahl an Konstantstromquellen gering halten zu können, ist es zweckmäßig, möglichst viele LED in Reihe zu schalten bzw. einzelne LED-Module, die eine Vielzahl von parallel geschalteten Reihenschaltungen aus einzelnen LED aufweisen, ihrerseits in Reihe zu schalten. Die Reihenschaltung der LED-Lichtquellen ist auch in dem Fall von Vorteil, wenn die Konstantstromquelle und die LED-Lichtquellen räumlich voneinander getrennt sind.Such a lighting device is connected to the DC electrical system of vehicles and especially aircraft connected. Should LED on the DC networks connected by vehicles and especially aircraft, so it is known to use LED over constant current sources operate to different forward voltages as well as the characteristics of the LED to take into account. To keep the number of constant current sources low to be able to hold it is appropriate, if possible many LEDs in series or individual LED modules, the one Large number of individual series circuits connected in parallel Have LEDs, in turn, to be connected in series. The series connection of the LED light sources is also advantageous in the case when the Constant current source and the LED light sources spatially separated from each other are.
Ein gewisser Nachteil der LED-Reihenschaltung ist, dass es bei einem Defekt einer LED oder einer Unterbrechung der Leitungsverbindung innerhalb der Reihenschaltung zum kompletten Ausfall der Beleuchtungsvorrichtung kommt.A certain disadvantage of the LED series connection is that there is a defect in an LED or an interruption the line connection within the series connection to complete Failure of the lighting device comes.
Um dies zu verhindern, sind Schaltungen
bekannt, die einen Defekt einer LED-Lichtquelle erkennen und die defekte
LED überbrücken. So
sind beispielsweise in
Die zuvor beschriebenen Nachteile
können umgangen
werden, wenn, wie es beispielsweise aus
Schließlich ist aus
Eine Aufgabe der Erfindung ist es, eine Beleuchtungsvorrichtung für Konstantstrom-Energieversorgungsnetze zu schaffen, die über mehrere im Schaltungsaufbau einfache, verlustleistungsarme Stromunterbrechungserkennung- und Überbrückungsschaltungen verfügt.An object of the invention is a lighting device for To create constant current power supply networks that span multiple simple, low-loss power interruption detection in the circuit structure and bypass circuits features.
Zur Lösung dieser Aufgabe wird mit der Erfindung eine Beleuchtungsvorrichtung vorgeschlagen, die insbesondere für die Anwendung im Innenraum, von Fahrzeugen, vorzugsweise Flugzeugen gedacht ist und versehen ist mit
- – mehreren LED-Lichtquellen, die in Reihe geschaltet sind, und
- – mehreren Überbrückungselementen zum elektrischen Überbrücken jeweils mindestens einer LED-Lichtquelle der Reihenschaltung von LED-Lichtquellen,
- – wobei jedes Überbrückungselement parallel zu der mindestens einen von dem Überbrückungselements zu überbrückenden LED-Lichtquelle geschaltet und mittels eines elektrischen Impulses von einem Sperrzustand in einen leitenden Zustand überführbar ist und in diesem Zustand für die Dauer eines Stromflusses durch das Überbrückungselement verbleibt und
- – wobei jedes Überbrückungselement von einer diesem zugeordneten Ansteuerschaltung ansteuerbar ist, die parallel zu der zu überbrückenden mindestens einen LED-Lichtquelle geschaltet ist und bei einem Überschreiten eines Schwellwerts des Spannungsabfalls über der zu überbrückenden mindestens einen LED-Lichtquelle einen Ansteuerimpuls für das Überbrückungselement erzeugt.
- - several LED light sources connected in series, and
- A plurality of bridging elements for electrically bridging at least one LED light source of the series connection of LED light sources,
- - wherein each bridging element is connected in parallel to the at least one LED light source to be bridged by the bridging element and can be converted from a blocking state into a conductive state by means of an electrical pulse and remains in this state for the duration of a current flow through the bridging element and
- - Each bridging element can be controlled by an associated control circuit, which is connected in parallel to the at least one LED light source to be bridged and generates a drive pulse for the bridging element when a threshold value of the voltage drop across the at least one LED light source to be bridged is exceeded.
Die erfindungsgemäße Beleuchtungsvorrichtung weist mehrere LED-Lichtquellen auf, die in Reihe geschaltet sind. Jede LED-Lichtquelle umfasst dabei mindestens eine LED. Alternativ kann jede LED-Lichtquelle auch mindestens ein LED-Modul aufweisen, bei dem es sich um eine Verschaltung einer Vielzahl von LED handelt. Im Allgemeinen weist ein LED-Modul mehrere LED-Reihenschaltungen auf, die untereinander parallel geschaltet sind. Vorzugsweise handelt es sich bei den LED-Lichtquellen der erfindungsgemäßen Beleuchtungsvorrichtung um Hochleistungs-LED, die über eine relativ hohe Lichtausbeute verfügen.The lighting device according to the invention has several LED light sources that are connected in series. Each LED light source comprises at least one LED. alternative each LED light source can also have at least one LED module, which is a connection of a large number of LEDs. In general, an LED module has several LED series connections, which are connected in parallel with each other. Preferably acts it is the LED light sources of the lighting device according to the invention High performance LED that over have a relatively high light output.
Die erfindungsgemäße Beleuchtungsvorrichtung wird über eine Konstantstromquelle mit Energie versorgt. Zu jeder LED-Lichtquelle oder zu mehreren aufeinander folgenden LED-Lichtquellen der Reihenschaltung von LED-Lichtquellen ist ein elektronisches Überbrückungselement parallel geschaltet, das erfindungsgemäß mittels eines einmaligen Ansteuersignals von einem Sperrzustand in einen leitenden Zustand übergeht und in diesem Zustand für die Dauer des Stromflusses durch das Überbrückungselement verbleibt (z.B. Thyristor oder Triac). Die Ansteuerung jedes Überbrückungselements erfolgt durch eine diesem zugeordnete Ansteuerschaltung, die ihre Versorgungsenergie aus der Reihenschaltung von LED-Lichtquellen erhält, indem die Ansteuerschaltung parallel zu der zu überbrückenden mindestens einen LED-Lichtquelle geschaltet ist. Andere Zuleitungen zu dieser Ansteuerschaltung existieren erfindungsgemäß nicht. Insoweit handelt es sich bei dieser Ansteuerschaltung also um eine autarke Ansteuerschaltung.The lighting device according to the invention is about a constant current source powered. To every LED light source or to several successive LED light sources of the series connection An electronic bridging element is connected in parallel by LED light sources according to the invention of a one-time drive signal from a locked state into a conductive state passes and in this condition for the The duration of the current flow through the bridging element remains (e.g. Thyristor or triac). Each bridging element is controlled by a control circuit assigned to this, the supply energy obtained from the series connection of LED light sources by the drive circuit parallel to the one to be bridged at least an LED light source is switched. Other leads to this Control circuits do not exist according to the invention. To that extent with this control circuit, therefore, an autonomous control circuit.
Die Ansteuerschaltung weist ein einen Spannungsschwellwert bestimmendes Bauelement auf, bei dem es sich vorzugsweise um eine in Sperrrichtung ge schaltete Diode und insbesondere um eine Zenerdiode, einen Diac, einen Varistor oder eine Spannungsreferenz handelt.The control circuit has one Component determining voltage threshold, which is preferably around a diode connected in the reverse direction and in particular around a zener diode, a diac, a varistor or a voltage reference is.
Beim Ausfall der zu überbrückenden mindestens einen LED-Lichtquelle steigt über dieser der Spannungsabfall an, bis er den Spannungsschwellwert der Ansteuerschaltung überschreitet. In diesem Augenblick wird ein Ansteuerimpuls für das Überbrückungselement erzeugt, der daraufhin irreversibel durchschaltet.If the one to be bridged fails At least one LED light source rises above this, the voltage drop until it exceeds the voltage threshold of the control circuit. At this moment, a drive pulse for the bridging element is generated then switched through irreversibly.
Aufgrund der Durchschaltung des Überbrückungselements fällt die Betriebsspannung der Ansteuerschaltung (Spannungsabfall) über der zu überbrückenden (mindestens einen) LED-Lichtquelle wieder ab. Der Kurzschluss über der ausgefallenen LED-Lichtquelle bleibt für die Dauer des Betriebs der Beleuchtungsvorrichtung aufrecht erhalten, ohne dass es der Aufrechterhaltung des Ansteuerimpulses bzw. Ansteuersignals bedarf. Neben diesem Vorteil ist als weiterer Vorteil die geringe Verlustleistung der erfindungsgemäßen Stromunterbrechungserkennungs- und Überbrückungsschaltung gegenüber Schaltungen mit antiparallel geschalteten Zenerdioden sowie der Umstand zu nennen, dass für die Ansteuerschaltungen keine eigenen Spannungsversorgungen notwendig sind.Due to the connection of the bridging element falls the Operating voltage of the control circuit (voltage drop) over the to be bridged (at least one) LED light source off again. The short circuit across the failed LED light source remains for the duration of the operation of the lighting device maintained without the maintenance impulse or Control signal required. Besides this advantage is another advantage the low power loss of the current interruption detection and bypass circuit towards circuits with anti-parallel zener diodes as well as the fact that for the control circuits do not require their own power supplies are.
In vorteilhafter Weiterbildung der Endung ist vorgesehen, dass jede Ansteuerschaltung einen Ansteuertransistor zum Ansteuern des Überbrückungselements aufweist, wobei mit der Steuerelektrode des Transistors (Basis im Falle eines Bipolar-Transistors und Gate im Falle eines MOSFET) das den Schwellwert bestimmende Bauelement gekoppelt ist. Alternativ kann anstelle des Transistors in dem zum Überbrückungselement parallelen Zweig der Ansteuerschaltung lediglich eine Reihenschaltung aus einem Widerstand und einer Diode, Zenerdiode, Diac, Varistor oder Spannungsreferenz angeordnet sein, wobei der Knotenpunkt zwischen dem Widerstand und der Diode, Zenerdiode, Diac, Varistor oder Spannungsreferenz mit dem Ansteuereingang des Überbrückungselements verbunden ist.In an advantageous development of the It is provided that each drive circuit has a drive transistor to control the bridging element has, with the control electrode of the transistor (base in Case of a bipolar transistor and gate in case of a MOSFET) the component determining the threshold value is coupled. alternative can instead of the transistor in the branch parallel to the bridging element the control circuit is only a series circuit made up of a resistor and a diode, zener diode, diac, varistor or voltage reference be arranged, the node between the resistor and the diode, zener diode, diac, varistor or voltage reference the control input of the bridging element connected is.
Die Erfindung wird nachfolgend anhand der Zeichnung, in der ein Schaltungskonzept zur autarken Stromunterbrechungserkennung und Überbrückung einzelner LED einer LED-Reihenschaltung dargestellt ist, näher erläutert.The invention is described below the drawing, in which a circuit concept for autonomous power cut detection and bridging individuals LED of an LED series connection is shown, explained in more detail.
Die Beleuchtungsvorrichtung
Der Aufbau einer der Ansteuerschaltungen
Im Falle einer ordnungsgemäß arbeitenden LED
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004007278A DE102004007278A1 (en) | 2003-03-27 | 2004-02-14 | Interior lighting system especially suitable for aircraft, is controlled by pulsed switches in parallel with light emitting diodes, operated by control circuit |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10313699 | 2003-03-27 | ||
DE10313699.1 | 2003-03-27 | ||
DE102004007278A DE102004007278A1 (en) | 2003-03-27 | 2004-02-14 | Interior lighting system especially suitable for aircraft, is controlled by pulsed switches in parallel with light emitting diodes, operated by control circuit |
Publications (1)
Publication Number | Publication Date |
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DE102004007278A1 true DE102004007278A1 (en) | 2004-10-07 |
Family
ID=32946214
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102004007278A Withdrawn DE102004007278A1 (en) | 2003-03-27 | 2004-02-14 | Interior lighting system especially suitable for aircraft, is controlled by pulsed switches in parallel with light emitting diodes, operated by control circuit |
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DE (1) | DE102004007278A1 (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1839928A2 (en) * | 2006-03-29 | 2007-10-03 | KOMPLED GmbH & Co. KG | Vehicle lamp assembly |
FR2901956A1 (en) * | 2006-06-06 | 2007-12-07 | Lyracom Sarl | Light source`s e.g. incandescent lamp, LED controlling method for e.g. lantern, involves detecting malfunctioning of LEDs, and short-circuiting defective LED or group of LEDs in series comprising defective LED by bias of derivation |
GB2440186A (en) * | 2006-07-14 | 2008-01-23 | Wolfson Microelectronics Plc | Light source protection circuit |
WO2008067750A1 (en) * | 2006-12-07 | 2008-06-12 | Jung-Hsiang Yao | A serial led groups lighting device |
DE102008031029A1 (en) * | 2008-06-30 | 2010-01-07 | Texas Instruments Deutschland Gmbh | Electronic component with a protective circuit for a light-emitting device |
WO2010034739A1 (en) * | 2008-09-24 | 2010-04-01 | Hella Kgaa Hueck & Co. | Method for operating a series circuit of at least two led’s |
DE102008044525A1 (en) * | 2008-09-15 | 2010-04-01 | Werner Turck Gmbh & Co. Kg | Lamp, particularly direction indicator light for motor vehicle, comprises strand or multiple strands, where each strand has series resistor as current source and light emitting diodes connected in series |
FR2937823A1 (en) * | 2008-10-29 | 2010-04-30 | Martek Power | Electric current supplying device for LED in e.g. vehicle, has voltage comparator circuit with threshold voltage higher than equivalent voltage of electric load, and switch controlled by voltage comparator circuit |
DE102009017989A1 (en) * | 2009-04-21 | 2010-10-28 | Vossloh-Schwabe Optoelectronic Gmbh & Co. Kg | Monitoring device for LED arrangement of lighting system, has detection unit monitoring time response of detected electric variable to detect LED error, where error signal is produced when LED error is present |
DE102007024784B4 (en) * | 2007-05-26 | 2010-12-16 | Automotive Lighting Reutlingen Gmbh | Circuit arrangement, in particular for motor vehicle headlights and motor vehicle lights |
US7884557B2 (en) | 2006-07-14 | 2011-02-08 | Wolfson Microelectronics Plc | Protection circuit and method |
DE102010060437A1 (en) | 2010-11-09 | 2012-05-10 | Vossloh-Schwabe Deutschland Gmbh | Light module operating device, has circuit comprising protection capacitor, and current limiting element i.e. voltage-dependent resistor, connected in series with capacitor in circuit or in series with controlled switch in bypass branch |
EP2725613A1 (en) * | 2012-10-26 | 2014-04-30 | Ceramate Technical (Suzhou) Co., Ltd. | An LED having two pins that handle contingencies of open, static electricity, and surge |
CN106195848A (en) * | 2015-05-26 | 2016-12-07 | 法雷奥照明公司 | The lighting module of illuminator and correlation technique thereof for motor vehicles |
-
2004
- 2004-02-14 DE DE102004007278A patent/DE102004007278A1/en not_active Withdrawn
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1839928A3 (en) * | 2006-03-29 | 2007-10-31 | KOMPLED GmbH & Co. KG | Vehicle lamp assembly |
EP1839928A2 (en) * | 2006-03-29 | 2007-10-03 | KOMPLED GmbH & Co. KG | Vehicle lamp assembly |
FR2901956A1 (en) * | 2006-06-06 | 2007-12-07 | Lyracom Sarl | Light source`s e.g. incandescent lamp, LED controlling method for e.g. lantern, involves detecting malfunctioning of LEDs, and short-circuiting defective LED or group of LEDs in series comprising defective LED by bias of derivation |
GB2440186A (en) * | 2006-07-14 | 2008-01-23 | Wolfson Microelectronics Plc | Light source protection circuit |
GB2440186B (en) * | 2006-07-14 | 2011-05-18 | Wolfson Microelectronics Plc | Protection circuit and method |
US7884557B2 (en) | 2006-07-14 | 2011-02-08 | Wolfson Microelectronics Plc | Protection circuit and method |
WO2008067750A1 (en) * | 2006-12-07 | 2008-06-12 | Jung-Hsiang Yao | A serial led groups lighting device |
DE102007024784B4 (en) * | 2007-05-26 | 2010-12-16 | Automotive Lighting Reutlingen Gmbh | Circuit arrangement, in particular for motor vehicle headlights and motor vehicle lights |
DE102008031029A1 (en) * | 2008-06-30 | 2010-01-07 | Texas Instruments Deutschland Gmbh | Electronic component with a protective circuit for a light-emitting device |
US8264806B2 (en) | 2008-06-30 | 2012-09-11 | Texas Instruments Deutschland Gmbh | Electronic device including a protection circuit for a light-emitting device |
DE102008031029B4 (en) * | 2008-06-30 | 2012-10-31 | Texas Instruments Deutschland Gmbh | Electronic component with a protective circuit for a light-emitting device |
DE102008044525A1 (en) * | 2008-09-15 | 2010-04-01 | Werner Turck Gmbh & Co. Kg | Lamp, particularly direction indicator light for motor vehicle, comprises strand or multiple strands, where each strand has series resistor as current source and light emitting diodes connected in series |
DE102008044525B4 (en) * | 2008-09-15 | 2014-02-13 | Werner Turck Gmbh & Co. Kg | One or more LEDs having lamp, in particular flashing lamp for a motor vehicle |
WO2010034739A1 (en) * | 2008-09-24 | 2010-04-01 | Hella Kgaa Hueck & Co. | Method for operating a series circuit of at least two led’s |
FR2937823A1 (en) * | 2008-10-29 | 2010-04-30 | Martek Power | Electric current supplying device for LED in e.g. vehicle, has voltage comparator circuit with threshold voltage higher than equivalent voltage of electric load, and switch controlled by voltage comparator circuit |
DE102009017989A1 (en) * | 2009-04-21 | 2010-10-28 | Vossloh-Schwabe Optoelectronic Gmbh & Co. Kg | Monitoring device for LED arrangement of lighting system, has detection unit monitoring time response of detected electric variable to detect LED error, where error signal is produced when LED error is present |
DE102010060437A1 (en) | 2010-11-09 | 2012-05-10 | Vossloh-Schwabe Deutschland Gmbh | Light module operating device, has circuit comprising protection capacitor, and current limiting element i.e. voltage-dependent resistor, connected in series with capacitor in circuit or in series with controlled switch in bypass branch |
DE102010060437B4 (en) * | 2010-11-09 | 2012-11-22 | Vossloh-Schwabe Optoelectronic Gmbh & Co. Kg | Device for operating a lighting module with overvoltage protection |
EP2725613A1 (en) * | 2012-10-26 | 2014-04-30 | Ceramate Technical (Suzhou) Co., Ltd. | An LED having two pins that handle contingencies of open, static electricity, and surge |
CN106195848A (en) * | 2015-05-26 | 2016-12-07 | 法雷奥照明公司 | The lighting module of illuminator and correlation technique thereof for motor vehicles |
CN106195848B (en) * | 2015-05-26 | 2020-12-18 | 法雷奥照明公司 | Lighting module for a lighting device of a motor vehicle and associated method |
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Legal Events
Date | Code | Title | Description |
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8127 | New person/name/address of the applicant |
Owner name: GOODRICH LIGHTING SYSTEMS GMBH, 59557 LIPPSTADT, D |
|
8139 | Disposal/non-payment of the annual fee |