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WO2009127259A1 - Dispositif et procédé de fonctionnement d'une lampe à décharge à haute pression - Google Patents

Dispositif et procédé de fonctionnement d'une lampe à décharge à haute pression Download PDF

Info

Publication number
WO2009127259A1
WO2009127259A1 PCT/EP2008/054707 EP2008054707W WO2009127259A1 WO 2009127259 A1 WO2009127259 A1 WO 2009127259A1 EP 2008054707 W EP2008054707 W EP 2008054707W WO 2009127259 A1 WO2009127259 A1 WO 2009127259A1
Authority
WO
WIPO (PCT)
Prior art keywords
operating
pressure discharge
discharge lamp
operating device
characteristic
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.)
Ceased
Application number
PCT/EP2008/054707
Other languages
German (de)
English (en)
Inventor
Martin BRÜCKEL
Oskar Schallmoser
Markus Baier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Osram GmbH
Original Assignee
Osram GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Osram GmbH filed Critical Osram GmbH
Priority to PCT/EP2008/054707 priority Critical patent/WO2009127259A1/fr
Priority to TW098112616A priority patent/TW201002157A/zh
Publication of WO2009127259A1 publication Critical patent/WO2009127259A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • 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
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters
    • H05B41/288—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters with semiconductor devices and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
    • H05B41/292—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2921—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
    • H05B41/2925—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions against abnormal lamp operating conditions

Definitions

  • the present invention relates to an operating device for operating a high-pressure discharge lamp coupled thereto, wherein the operating device comprises a storage device.
  • the invention moreover relates to a lighting system with such an operating device and to a method for operating a high-pressure discharge lamp coupled to such an operating device.
  • High-pressure discharge lamps as used for example in video projection systems, are expensive to produce and therefore correspondingly expensive.
  • replacement lamps from third-party suppliers are available on the market. Although they look essentially identical in appearance to the original lamps, they often differ in their operating parameters. As a result, damage may be caused to the projectors resulting from the use of unreleased spare lamps, for example, due to overheating, EMC and the like. Even if no damage occurs, the quality of the projected image may be degraded. Presentation of the invention
  • the object of the present invention is to further develop an operating device mentioned at the outset such that the failure rate of video projection systems can be reduced. It also consists in providing a corresponding illumination system with such an operating device and a corresponding method for operating a high-pressure discharge lamp coupled to such an operating device.
  • control gear having the features of claim 1
  • lighting system having the features of claim 19
  • method having the features of claim 20.
  • the present invention is based on the recognition that certain characteristics of high-pressure discharge lamps on the one hand differ significantly from one to the other due to a production-related scattering and, on the other hand, that there are characteristics which are less scattered, but which occur during lamp life change significantly. Accordingly, in order to achieve the above objects, the present invention provides for storing at least one characteristic of a high-pressure discharge lamp in the storage device of the operating device.
  • the operating device is now designed to compare at least one corresponding characteristic of the high-pressure discharge lamp coupled to the operating device with the at least one characteristic stored in the memory device and at least determine that the at least one characteristic of the device coupled to the operating device High pressure discharge lamp by more than a predetermined limit of the stored characteristic differs to block the operation of the high pressure discharge lamp.
  • a lamp replacement can be reliably detected. If it is an authorized lamp, the operation of the new high-pressure discharge lamp can be released, for example, after entering an activation code to the operating device. If, however, the replacement lamp is an unauthorized third-party lamp, then no activation code is available, thereby preventing the operation of such a high-pressure discharge lamp.
  • This measure can reliably prevent damage to projectors resulting from the use of non-approved replacement lamps. Moreover, ensuring the use of authorized lamps allows consistent quality of the projected image.
  • the operating device is designed to determine at least one operating parameter of the high-pressure discharge lamp and to store it as a characteristic in the memory device.
  • the at least one operating parameter is particularly preferably correlated with the time which the high-pressure discharge lamp required within preceding N operating cycles, preferably on average, to reach a predefinable voltage value, where N represents any natural number.
  • the at least one operating parameter can be correlated with the burning voltage which the high-pressure discharge lamp has achieved within preceding N operating cycles.
  • the burning voltage is a particularly suitable parameter. In fact, if one considers the long-term course of the burning voltage, it initially decreases somewhat and increases with the life of the lamp.
  • the burning voltage is now determined and stored within preceding N operating cycles, it is very easy to detect a lamp replacement in this way, as a result of which the burning voltage has suddenly dropped significantly again compared with the stored value.
  • the burning voltage rises continuously in a range from 0 to 200 s. This increase is lamp-specific, so that by storing the time profile of the burning voltage or at least one value at a certain time within the startup as a characteristic, a lamp replacement can be easily detected by a changed startup behavior.
  • the at least one operating parameter can be correlated with the temperature which has set at a certain point on the high-pressure discharge lamp within preceding N operating cycles, preferably at a specific time after the high-pressure discharge lamp has been switched on.
  • the temperature development at one point of the high-pressure discharge lamp is also extremely lamp-specific, so that the recording of this value as a characteristic tik for solving the object of the present invention is suitable.
  • the at least one characteristic is correlated with the time profile of at least one operating parameter of the high-pressure discharge lamp.
  • only one value per operating cycle can be recorded, for example, the burning voltage after 3 minutes or the temperature at a certain point of the lamp after 90 seconds to store it as a characteristic.
  • the operating parameter are recorded as characteristics representing the value of the operating parameter at different times.
  • the operating device comprises an input device, wherein the operating device is designed to generate the at least one characteristic to be stored in the memory device, taking into account an input made via the input device.
  • the at least one characteristic is correlated with an identification number assigned to the high-pressure discharge lamp.
  • the at least one characteristic represents the identification number assigned to the high-pressure discharge lamp.
  • the at least one characteristic is correlated with the identification number assigned to the old high-pressure discharge lamp and / or the identification number assigned to the new high-pressure discharge lamp.
  • the input device may include an interface to a computer, in particular a USB port, a LAN interface, a WLAN interface, a UART interface or an I 2 C-compatible interface. This opens up the possibility of entering an activation code or the identification number via a computer coupled thereto, in particular also downloading it via a website of the lamp manufacturer.
  • the operating device is designed to record the operating time of a released high-pressure discharge lamp.
  • the operating device is designed to store the detected operating time of an authenticated, ie released, high-pressure discharge lamp.
  • the operating device may in particular be designed to enable or block the operation of the high-pressure discharge lamp as a function of the detected operating time.
  • the operating device comprises a memory device in which a prescribable operating time for the high-pressure discharge lamp is stored. This opens up the possibility of switching off the lamp after a prescribed period of operation or no longer operate. The lamp is therefore sold explicitly with a certain operating time.
  • the predetermined operating time is the maximum allowable operating time of the high pressure discharge lamp, this normally corresponds to an endurance-based end-of-life shutdown. However, the predetermined operating time can not correspond to the maximum allowable operating time. This opens up the possibility that the customer pays for each light hour.
  • the high pressure discharge lamp can therefore be sold with a certain relatively short operating life compared to its life or with a relatively short service life warranty. Additional operating hours or additional warranties for additional operating hours can be purchased. It is particularly preferred if the operating device comprises an input device, wherein the operating device is designed to change the specifiable operating time of the high-pressure discharge lamp when entering a predetermined code on the input device, in particular to extend.
  • This input device also preferably includes an interface to a computer, as already mentioned above in another context.
  • the code can also be downloaded, for example, against payment from an Internet page operated by the lamp or projector manufacturer and entered into the projector.
  • a code can also be obtained in other ways, for example by telephone, and then entered manually via the keyboard of a computer coupled to the interface or via a keypad of the projector.
  • FIG. 1 shows a schematic representation of a first embodiment of a lighting system according to the invention
  • FIG. 2 shows a schematic representation of a second embodiment of a lighting system according to the invention
  • FIG. 3 is a schematic representation of the long-term behavior of the burning voltage of a high-pressure discharge lamp.
  • FIG. 4 shows a schematic representation of the starting behavior of the burning voltage for a first and second high-pressure discharge lamp.
  • FIG. 1 shows a schematic representation of an inventive lighting system 10, in which an inventive operating device 12 cooperates with a high-pressure discharge lamp 14.
  • the high-pressure discharge lamp 14 has a lamp cap 16, which is supplied via a first 18 and a second supply line 20 from the operating device 12, which in turn is coupled via a first El and a second input terminal E2 to a supply voltage U N.
  • the operating device 12 comprises a memory device 22 in which a characteristic of the connected high-pressure discharge lamp 14 is stored.
  • the operating device 12 is designed to determine a corresponding characteristic of the connected high-pressure discharge lamp 14 via a detection device 24 and to compare the determined characteristic with the characteristic stored in the memory device 22 in a comparison device 26 with one another. If a deviation results in more than a predefinable limit value, the operation of the high-pressure discharge lamp 14 is blocked.
  • the startup behavior of the high-pressure discharge lamp ie the voltage between the terminals of the supply lines 18, 20 over the time or the long-term course of the operating voltage of the operated lamp can be evaluated and stored.
  • the maximum or minimum time that the lamp has needed within the last N cycles of operation where N is a natural number, to exceed a certain threshold voltage after turn-on is particularly contemplated.
  • the middle or the minimum Burning voltage of the lamp after startup ie the steady state, during the last N cycles of operation are stored as a characteristic. If the stored lamp characteristic changes more than a certain maximum permitted deviation during a new operating cycle, the operating device 12 decides that a lamp replacement must have taken place and no longer operates this lamp.
  • an enabling code must be transmitted to the operating device 12 via an input device 28, in particular a communication interface.
  • the input device 28 may represent an interface to a computer, in particular a USB port or a LAN interface or a WLAN interface.
  • the operating device 12 learns its characteristics, i. H. For example, as already mentioned above, the burning voltage curve or the like in order to be able to detect a further lamp replacement. However, this step can also be omitted if it is assumed that usually no more than a lamp change is made during the lifetime of a projection system.
  • the mentioned input device can also be used for a further variant:
  • a unique identification number assigned to each lamp can be stored in the memory device 22. the. This identification number can be printed on the lamp base 16, for example.
  • this code must be entered via the input device 28 in the operating device 12.
  • the operating device 12 can be initialized by the manufacturer of the operating device 12 with the identification number. Then a separate input by the end customer can be omitted.
  • a new individual activation code is preferably generated from the identification number of the new and the identification number of the old lamp.
  • the identification number of the old lamp which is stored in the operating device 12, the person who changes the lamp, accessible, for example, is printed on the lamp base, was supplied on paper or data storage with the old lamp, or via a user menu of the operating device 12, which may preferably be a projector, is readable.
  • the identification number of the new lamp is also accessible to the person who changes the lamp, for example by being printed on the lamp base or supplied on paper or data storage with the new lamp.
  • Both identification numbers must now be linked to generate an activation code, for example by entering via a website or a telephone hotline. This is done by means of an encryption fahrens generated a new activation code, which is transmitted to the operating device 12 by means of the communication interface 28 and stored in the storage device 22.
  • the generation of the activation code preferably takes place on the part of an operator of a corresponding Internet page or a corresponding telephone hotline.
  • a correlated with the temperature T B of the component 30 voltage is supplied via the lines 32, 34 to the operating device 12.
  • the operating device 12 is given the option of a temperature value T B at a predetermined time after switching on the high-pressure discharge lamp 14 or a plurality of temperature values T B at different times or the time profile of the temperature T B of the component 30 as a characteristic in the memory device 22 save. Since the temperature T B, for example, a PTC resistor is subject to a large dispersion, so that a lamp replacement can be detected in a simple manner.
  • Fig. 3 shows schematically the long-term behavior of the burning voltage U B of a high-pressure discharge lamp.
  • the abscissa indicates the operating time in hours.
  • the burning voltage U B initially drops slightly and then increases continuously until the end of the lamp life.
  • Characteristic of the average value of the burning voltage U B within the last N operating cycles stored in the memory device 22 a lamp replacement can be detected when the measured burning voltage U B is suddenly well below the stored value again.
  • FIG. 4 shows a schematic representation of the startup behavior according to a first characteristic curve HL1 of a first high-pressure discharge lamp 14a and according to a second characteristic curve HL2 of a second high-pressure discharge lamp 14b.
  • the abscissa shows the operating time in seconds.
  • the resulting burning voltage U B of the two high-pressure discharge lamps 14a, 14b clearly differ from each other.
  • a predefinable operating time for the high-pressure discharge lamp 14 may be stored.
  • the operating device 12 may be designed to detect the operating time of an authenticated high-pressure discharge lamp 14. The recorded operating time is also stored in this memory device. If the detected operating time exceeds the predetermined operating time, the operating device 12 blocks the operation of the connected
  • a high-pressure discharge lamp 14 can be input via the input device 28 in order to extend the presettable operating time of the high-pressure discharge lamp 14 stored in the storage device 22. This can be done by increasing the value of the stored operating time or by deleting the previously recorded operating time.

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

La présente invention concerne un dispositif de fonctionnement (12) pour le fonctionnement d'une lampe à décharge à haute pression (14) qui lui est raccordée. Le dispositif de fonctionnement (12) comprend un dispositif de mémorisation (22). Le dispositif de mémorisation (22) mémorise au moins une caractéristique d'une lampe à décharge à haute pression (14). Le dispositif de fonctionnement (12) est conçu pour comparer au moins une caractéristique correspondante de la lampe à décharge à haute pression (14) raccordée au dispositif de fonctionnement (12) avec ladite ou lesdites caractéristiques placées dans le dispositif de mémorisation (22) et au moins s'il est constaté que ladite ou lesdites caractéristiques de la lampe à décharge à haute pression (14) raccordée au dispositif de fonctionnement (12) divergent de plus d'une valeur limite prédéterminable par rapport à la caractéristique mémorisée, pour inhiber le fonctionnement de la lampe à décharge à haute pression (14). L'invention concerne en outre un système d'éclairage avec un tel dispositif de fonctionnement et une lampe à décharge à haute pression qui lui est raccordée et enfin un procédé correspondant de fonctionnement d'une lampe à décharge à haute pression raccordée à un ballast.
PCT/EP2008/054707 2008-04-18 2008-04-18 Dispositif et procédé de fonctionnement d'une lampe à décharge à haute pression Ceased WO2009127259A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/EP2008/054707 WO2009127259A1 (fr) 2008-04-18 2008-04-18 Dispositif et procédé de fonctionnement d'une lampe à décharge à haute pression
TW098112616A TW201002157A (en) 2008-04-18 2009-04-16 Operating device and method for operating a high pressure discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2008/054707 WO2009127259A1 (fr) 2008-04-18 2008-04-18 Dispositif et procédé de fonctionnement d'une lampe à décharge à haute pression

Publications (1)

Publication Number Publication Date
WO2009127259A1 true WO2009127259A1 (fr) 2009-10-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/054707 Ceased WO2009127259A1 (fr) 2008-04-18 2008-04-18 Dispositif et procédé de fonctionnement d'une lampe à décharge à haute pression

Country Status (2)

Country Link
TW (1) TW201002157A (fr)
WO (1) WO2009127259A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2506687A1 (fr) * 2011-04-01 2012-10-03 DRIMAL, Jiri Appareil de fonctionnement pour lampes à décharge et diodes luminescentes et son procédé de fonctionnement

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19530485A1 (de) * 1995-08-18 1997-02-20 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren und Schaltungsanordnung zum Betreiben einer elektrischen Lampe
WO2001045471A1 (fr) * 1999-12-14 2001-06-21 Efos Inc. Lampe intelligente
US20030160578A1 (en) * 2002-02-22 2003-08-28 Mitsubishi Denki Kabushiki Kaisha Apparatus for lighting a discharge lamp at electric characteristics appropriate to a type of the discharge lamp
EP1363451A1 (fr) * 2002-05-16 2003-11-19 NEC Viewtechnology, Ltd. Projecteur et méthode de traitement de l'information relative à la lampe utilisée pour ce projecteur
US20040113567A1 (en) * 2001-11-27 2004-06-17 Tokushi Yamauchi Electronic ballast for a high-pressure discharge lamp

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19530485A1 (de) * 1995-08-18 1997-02-20 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren und Schaltungsanordnung zum Betreiben einer elektrischen Lampe
WO2001045471A1 (fr) * 1999-12-14 2001-06-21 Efos Inc. Lampe intelligente
US20040113567A1 (en) * 2001-11-27 2004-06-17 Tokushi Yamauchi Electronic ballast for a high-pressure discharge lamp
US20030160578A1 (en) * 2002-02-22 2003-08-28 Mitsubishi Denki Kabushiki Kaisha Apparatus for lighting a discharge lamp at electric characteristics appropriate to a type of the discharge lamp
EP1363451A1 (fr) * 2002-05-16 2003-11-19 NEC Viewtechnology, Ltd. Projecteur et méthode de traitement de l'information relative à la lampe utilisée pour ce projecteur

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2506687A1 (fr) * 2011-04-01 2012-10-03 DRIMAL, Jiri Appareil de fonctionnement pour lampes à décharge et diodes luminescentes et son procédé de fonctionnement
CZ309144B6 (cs) * 2011-04-01 2022-03-09 Jiří doc. RNDr. Dřímal Ovládací zařízení pro výbojky a diody LED a způsob jeho provozování

Also Published As

Publication number Publication date
TW201002157A (en) 2010-01-01

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