CN101816220A - Operating device for controlling the warm-up time of a lamp - Google Patents
Operating device for controlling the warm-up time of a lamp Download PDFInfo
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- CN101816220A CN101816220A CN200880110096A CN200880110096A CN101816220A CN 101816220 A CN101816220 A CN 101816220A CN 200880110096 A CN200880110096 A CN 200880110096A CN 200880110096 A CN200880110096 A CN 200880110096A CN 101816220 A CN101816220 A CN 101816220A
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- Prior art keywords
- operating mechanism
- lamp
- warm
- time
- brightness
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- 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
- H05B41/38—Controlling the intensity of light
- H05B41/39—Controlling the intensity of light continuously
- H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
- H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention relates to an operating device (12) for operating at least one lamp (10), said device comprising at least one input (16a, 16b, 17a, 17b) for receiving brightness control information (21, 22) and an output (23) for controlling a power supply circuit (2) for feeding the lamp (10), wherein the control of the power supply circuit (2) is carried out as a function of the received brightness control information (21, 22), except for during a warm-up time of the lamp (10) during which the power supply circuit (2) is controlled such that the brightness of the lamp (10) does not fall below a minimum permissible brightness level.
Description
Technical field
The present invention relates to be used to operate the lamp operating mechanism of light source, this light source can pass through the operating mechanism modulated light.The invention particularly relates to a kind of lamp operating mechanism that is used for operating gas discharge lamps that is the electric ballast form of tunable optical.
Background technology
Gaseous discharge lamp after coming into operation the startup stage need special control.Gaseous discharge lamp for example can require the special control about luminous power in many application scenarios.
GB1508130 discloses a kind of emergency lighting system, disappears then this system operation emergency lighting in case be used for the mains supply electric current power supply in other words of other illuminating device.This system comprises capacitor, and it discharges when mains supply disappears, thus one, and start a transistor again and connect emergency lighting.
Various lamps can be made the emergency lighting device for selecting for use.When utilizing for example conventional incandescent lamp, after disappearing, mains supply reaches the highest luminous power of this system immediately.And fluorescent lamp will at least a few minutes, just can warm up after a while.This fluorescent lamp subsequently could be with highlight strength illumination.
In the emergency lighting system of GB1508130, the arrangement form of this fluorescent lamp is considered for following situation, that is, emergency lighting device at first the startup stage power operation to raise, can supply normal power to emergency lighting device again subsequently.Because the initial power that improves, the heating period of fluorescent lamp can be shortened, thereby illumination intensity increases fast.
But, with emergency lighting system that can not light modulation propose relatively gaseous discharge lamp the startup stage special control, here luminous power has been played the part of the key player.And do not take in the useful life of gaseous discharge lamp in startup stage control.This emergency lighting device also can't light modulation, thereby the control that is proposed can't be applied directly to the ballast of tunable optical, because dimming capability is brought specific question in lamp control.
In fact, to the tunable optical formula ballast of gaseous discharge lamp disadvantageously, light is turned down the change that may cause lamp current very fast, thereby filament can shorten useful life.
Corresponding therewith, DE102005047985A1 discloses a kind of method of operation of tunable optical formula operating mechanism of the gaseous discharge lamp with at least one filament, wherein the thermal power parameter value that also goes out to change in the filament adjusted when light modulation changes.Therefore for higher light modulation current intelligence, the heater current that is used for the filament heating can be enhanced with respect to stable operation.Especially heater current is transferred highly more, and light modulation is dynamically high more.If light modulation is dynamically opposite low, the predetermined value that this means lamp current will can not change with the long period in past, then in order to prolong the useful life of lamp, filament wattage parameter value (for example heater current or filament voltage) can be transferred to a value that is used for the optimum useful life under the stable operation, especially be reduced to this value.
Summary of the invention
From now on, task of the present invention be after so arranging to come into operation the startup stage, can prolong lamp useful life.
The objective of the invention is to obtain the best as far as possible warm of lighting, so that prolong the useful life of lamp.
In other words, new lamp needs an energy to be issued to the warm of lighting of 20-100 hour time for example in total power.
If now electric ballast is worked relatively with solar sensor, and this and new gaseous discharge lamp coordination, solar sensor or instruct strong light modulation that can not allow lingeringly to order lamp then from the light modulation of bus.The warm of lighting that standard therefore, can not occur.
The present invention gets down to improvement like this and lights warm, promptly for example lights the minimum permission light modulation value of regulation in section warm-up time for each software in the electric ballast in certain that calculate.
In other words, in lighting warm-up phase, never be lower than this dimming level.Minimum permission dimming level is for example in the 50-70% scope of peak power (100%).
Electric ballast can be carried out and light detection warm-up time.
Light the warm-up time timer and for example when the supplies electrons ballast, be set to zero, thereby electric ballast has been ready for the new installing of coordinating with new lamp subsequently.
Also can when changing lamp, stipulate to light making zero of timer warm-up time.Can when finding to have packed lamp into, carry out the startup of another time based on operating time timer zero state with different wattages.In addition, also can in electric ballast, add the function that lamp (brownout) changed in discovery.In the case, directly find packing into once more and finally setting the timer to zero of lamp.
Finally, change lamp and also can change lamp as indicating to operating mechanism by instruction by extraneous bus.Therefore the operating time timer can be made zero and restarted by external world's instruction or operation.
Can stipulate that in addition it is aging to detect filament by electric ballast.Therefore, also can in conjunction with the filament state detecting information infer the lamp life-span and and then finished light warm.
Relevant therewith, referring to DE102005021297, a kind of method of assessing the filament state of lamp is wherein especially proposed, wherein at first filament is heated under the situation of measurement parameter at the same time with the first regulation heater current, at this, this parameter is directly or indirectly represented filament temperature.In next step, filament perhaps is heated with second heater current that is different from first heater current after cooling subsequently, and represents that directly or indirectly the parameter of filament temperature is measured again.As the parameter that is used for the filament state,, adopt the temperature wave moment with first heater current or the heating of second heater current time in other words as the parameter that is used for luminescent substance residual on the filament.Because along with constantly wearing out of filament, the filament quality is successively decreased, so can infer the life-span.
Not only can carry out the warm of lighting of the present invention in the lamp on new clothes.And can be in cut off the power supply fully back or of the present inventionly light warm or warm is lighted in regeneration of lamp in light modulation degree very low needs after for a long time.
In the case, electric ballast can be provided with and be used for keeping below a threshold value that is used for dimming level detection time in this time.As an alternative or replenish, can detect this moment idle time of lamp.Cut off the power supply in other words for example many days of long period or a few week if find to turn down light now, then be locked in the light high light joint under the defined threshold again, light warm to facilitate regeneration according to the present invention.
According to the present invention, finish the task of institute of the present invention foundation by the feature of independent claims.Dependent claims has particularly advantageously improved center of the present invention conception.
According to a first aspect of the invention, the operating mechanism that is used to operate at least one lamp comprises that at least one is used to receive the input of brilliance control information and is used to control output to the electric current supply line road of lamp power supply.Except that lighting the warm of lamp, the brilliance control information that foundation is received is carried out the control to the electric current supply line road, lights in the warm at this, and electric current supply line road Be Controlled must make lamp brightness be not less than minimum permission intensity level.
According to a further aspect in the invention, the operating mechanism that is used to operate at least one lamp comprises the output that at least one is used to receive the input of brilliance control information and is used for controlling according to the brilliance control information that is received the power of supplying with lamp.Lighting in the warm of lamp, the power Be Controlled of supplying with lamp must be not less than minimum permission power stage.In addition, when lamp is switched on again after lamp or operating mechanism once disconnect fully, lights warm and be operated mechanism's startup.
In lighting warm, the light modulation possibility of operating mechanism is advantageously locked, thereby lamp brightness can not be lower than its maximum brightness level, but the power of supplying with lamp in other words can not be lower than the highest input power.
But minimum permission intensity level or power stage can surpass can reach intensity level or the highest input power 10%.
But minimum permission intensity level or power stage can reach intensity level or 50% to 70% of the highest input power.
When operating mechanism was found to change lamp, lighting warm can be activated.
When operating mechanism finds that the lamp wattage changes and operating mechanism can be inferred whereby and lighted warm and also can be activated when changing lamp.
Warm starts light when in addition, operating mechanism can also be switched on again after lamp is through once complete outage.
For the warm that starts light, the outage of lamp in the minimum time also may be necessary.Therefore, if lamp keeps outage in the minimum time, then just can carry out and light warm.This for example realizes in the operating mechanism of DALI (digital addressable lighting interface) formula, because this operating mechanism generally also is switched under waiting state, therefore when load circuit or lamp are de-energized, also can calculate power-off time.
The minimum time is at least 1 day, especially at least 1 week.
In lighting warm, the power that lamp is supplied with in lamp brightness in other words reaches maximum brightness level/power stage and reaches at least 5 minutes.
The operating mechanism warm that starts light after can be at the appointed time, lamp brightness surpasses the luminance reference level in this stipulated time, and perhaps the power of importing in this stipulated time surpasses the power reference level.
Lighting warm can be carried out 20 to 100 hours by operating mechanism.
Operating mechanism can have the mechanism that is used to detect lamp life-span or filament state, lights warm or does not carry out thereby can correspondingly carry out.If for example can infer that lighting warm finishes, then will not carry out subsequently and light warm.
The detection of changing lamp also can be monitored by filament monitoring or electrode and be realized.For example, can determine to change lamp according to the filament resistance measurement.
Preferably, operating mechanism can have and receives the especially input of the brightness actual value of optical sensor.
Operating mechanism can have the input that receives the brightness rated value.
Especially, operating mechanism can have the input of reception DALI-(digital addressable lighting interface) or DSI-(digital signal interface) brightness rated value.
According to a further aspect in the invention, the electric ballast of tunable optical has aforesaid operating mechanism in order to operate at least one lamp.
According to a further aspect in the invention, provide a kind of method that is used for regulating according to brilliance control information the brightness of lamp, wherein, lighting in the warm of lamp, lamp brightness should not be transferred to less than minimum permission light modulation level.
Other features and advantages of the present invention will read following with reference to accompanying drawing during to the explanation of preferred implementation change clear.
Description of drawings
Fig. 1 represents the structure according to electric ballast 11 of the present invention, and it is connected to optical sensor 20.
Embodiment
The electric ballast 11 that Fig. 1 represents especially is used for operating at least one gaseous discharge lamp 10.Electric ballast 11 comprises rectifier 1, and it is converted to intermediate circuit voltage through over commutation with line voltage, and intermediate circuit voltage is added to again on the inverter 2.
Inverter 2 generally has two switch (not shown) that are connected between positive supply voltage and the earth, and they especially can be designed to the form of MOSFET and alternately be controlled, and promptly is switched on and disconnects.In this way, inverter 2 produces high frequency beat alternating voltage, and its envelope curve is provided by the intermediate circuit voltage that is provided by rectifier 1.
One load circuit links to each other with inverter 2, and this load circuit especially has gaseous discharge lamp 10 and comprises coil 4 and the series resonant circuit of capacitor 5, and wherein gaseous discharge lamp 10 links to each other with series resonant circuit by coupling capacitor 6.
Before gaseous discharge lamp 10 is lighted, common preheating filament.For this reason, be provided with filament transformer, its elementary winding 7A links to each other with series resonant circuit, and its secondary winding 7B or 7C are in parallel with the filament of gaseous discharge lamp 10 respectively.By adopting filament transformer, the filament of gaseous discharge lamp 10 is provided filament voltage in warm-up operation.
But, the present invention and nonessential use filament transformer 7A, 7B, 7C, alternate embodiments of the present invention does not have filament transformer 7A, 7B and 7C.
In addition, electric ballast 11 of the present invention has center control machine structure 12, and it especially can comprise microprocessor.Operating mechanism 12 is particularly useful for according to outer defeated brightness actual value 21 and/or outer defeated brightness rated value 22 is regulated or the brightness of control gaseous discharge lamp 10.
The brightness actual value 21 of the brightness of expression gaseous discharge lamp 10 can be transfused to by interface arrangement 3 by optical sensor 20.The analog signal that is provided by optical sensor 20 can be converted to digital signal by the resistance 13,14 between two input 16a, 16b that are connected terminal 18a, 18b and controlling organization 12 and by capacitor 15 by interface arrangement 3.
In addition, by input 17a, the 17b of terminal 19a, 19b or controlling organization 12, can import brightness rated value 22 or take the light modulation value 22 of the external control information Iextern form of controlling organization 12.This brightness rated value 22 for example can be the specified setting of extraneous dimmer.As an alternative or replenish, can send brightness rated value 22 by numerical control system (not shown) such as DALI (digital addressable lighting interface) or DSI (digital signal interface) by a center cell.
Except external control information Iextern, controlling organization 12 also receives the internal work state information according to known way, and described internal work state information preferably is considered for the control or the adjustment of the working condition of electric ballast 11 of the present invention.
This internal work state information especially can be following parameter:
-line voltage uN,
-through the intermediate circuit voltage uG of over commutation,
The lamp current iL in the gas discharge highway section of-gas coming through discharge lamp 10,
-modulating voltage uL,
-heater current iH.
Controlling organization 12 for example receives the parameter corresponding to lamp current iL, and the voltage that reduces because of process resistance or shunt 9 is supplied to controlling organization 12.
Heater current iH is obtained by resistance 8 similarly.
Modulating voltage uL can directly be exported by tap between gaseous discharge lamp 10 and coupling capacitor 6.
By this work state information, electric ballast 11 or controlling organization 12 can be obtained other running parameter according to known way, and for example lamp is lighted warm-up time, operating time, the number of starts etc.
According to the present invention, gaseous discharge lamp 10 is generally according to the brightness actual value 21 of the optical sensor of being received 20 and/or outside brightness rated value 22 and the duty ratio d modulated light by the beat alternating voltage that changes frequency f and/or provided by inverter 2.
The change of frequency f and/or duty ratio d is reported to inverter 2 by the output 23 of controlling organization 12 and by corresponding control signal 24.
At this moment, according to the present invention, do not start in lighting warm earlier and limit the light modulation possibility in other words, way is only to carry out about certain first degree light modulation instruction.
The time of lighting the restricted in other words lamp work of warm is for example between 20 to 100 hours.This time also can be predetermined by lamp manufacturer at lamp.
In addition, light warm-up time and/or lowermost level following selection can be arranged:
-predetermined fixed,
-scalable, for example, able to programme by extraneous instruction, and/or
-self adaptation, that is, operating mechanism is regulated in conjunction with measured value such as the lamp parameter measured.
If operating mechanism 12 has interface 17a, 17b, then can fix time of lighting warm and report to controlling organization by the external world by this interface 17a, 17b.
Perhaps, light and also can be stored in the operating mechanism 12 warm-up time.
Also can for example indicate lamp by extraneous bus to controlling organization by instruction changes.Therefore the operating time timer can be made zero and restarted by external world's instruction or operation.
But, not light modulation energy restricted within a certain period of time may not expecting to have in lighting warm.Therefore, according to the present invention, also can utilize switch 25 to start or do not start by digital interface 17a, 17b and by configuration-direct or artificially according to light modulation energy limited of the present invention.
For example, can stipulate comprehensively to reply, thereby only when finding the lamp replacing, start light warm, also send by configuration-direct or by manually starting.
In other words, the invention has the advantages that lamp 10 can correctly be lighted best in other words, this has prolonged the useful life of lamp.
Lighting the warm parameter can dispose by showing, thereby it is activated according to some incident or does not start.Following incident for example is:
-electrical network is reseted: J/N,
After-lamp is changed: J/N,
-find after other wattage: J/N.
Lighting warm and lighting all can depend on known or according to control information and the type of fixed lamp disposes warm-up time.For example, may determine to light warm-up time during at any one-shot lamp under the situation of certain lamp, and under the situation of another kind of lamp, only when changing lamp, need light warm-up time, perhaps even fully not need.
Also can so change and light warm, that is, light and depend on the minimum permission intensity level that is used to light warm-up time warm-up time.For example, under the situation of 70% minimum permission intensity level, light and to be decided to be 10 minutes warm-up time, and under the situation of 10% minimum permission intensity level, light and be decided to be 45 minutes warm-up time.This can be used as function and is stored with form.
Lighting warm also can dispose according to the ambient temperature that environmental condition is for example measured or start.
When lighting apparatus was come into operation with the tunable optical that links to each other and ballast that be connected with optical sensor, lamp can't correctly be lighted, because because optical sensor is arranged, so modulated light is extremely minimum by day for lamp.Present settling mode is, manually obmub in the middle of using optical sensor and for example removing again after 100 hours of people.
Rely on the present invention, can simply utilize this lighting apparatus now, because what independent operating mechanism 12 or electric ballast 11 can automatically perform lamp 10 correctly lights preheating, because for example earlier light modulation is not worked or limits light modulation at least by optical sensor, and for example after 100 hours automatically the startup lamp light warm-up time.
Claims (22)
1. operating mechanism (12) that is used to operate the tunable optical of at least one lamp (10), this operating mechanism (12) has:
At least one be used to receive brilliance control information (21,22) input (16a, 16b, 17a, 17b),
Be used to control the output (23) of lamp (10),
Control unit (12), it is designed to control lamp (10), makes the lighting in warm-up time of this lamp (10), is not less than minimum permission intensity level or power stage.
2. according to the operating mechanism (12) of claim 1, wherein, lighting in the warm of lamp (10), the dimming capability of lock operation mechanism (12), thus make the brightness of lamp (10) can not be lower than its maximum brightness level.
3. according to the operating mechanism (12) of claim 1, wherein, minimum permission intensity level is above can reach 10% of intensity level.
4. according to the operating mechanism (12) of claim 3, wherein, minimum permission intensity level can reach intensity level 50% to 70% between.
5. according to the described operating mechanism of arbitrary aforementioned claim (12), wherein, when operating mechanism (12) finds that lamp is changed, start light warm-up time.
6. according to the described operating mechanism of arbitrary aforementioned claim (12), wherein, when operating mechanism (12) finds that the wattage of lamp (10) has changed, start light warm-up time.
7. according to the described operating mechanism of arbitrary aforementioned claim (12), wherein, when lamp (10) was switched on again after once disconnecting fully, operating mechanism (12) started light warm-up time.
8. according to the described operating mechanism of arbitrary aforementioned claim, wherein, when operating mechanism was switched on again, operating mechanism started light warm-up time.
9. according to the described operating mechanism of arbitrary aforementioned claim (12), wherein, when corresponding external command arrived, operating mechanism (12) started light warm-up time.
10. operating mechanism according to claim 8 (12), wherein, in order to start light warm-up time, the disconnection of lamp (10) in the shortest time still is necessary.
11. operating mechanism according to claim 10 (12), wherein, the described shortest time was at least 1 day, especially was at least for 1 week.
12. each described operating mechanism (12) in 11 according to Claim 8, wherein, in lighting warm, the brightness of lamp (10) reaches the maximum brightness level and reaches at least 5 minutes.
13. according to the described operating mechanism of arbitrary aforementioned claim 1 (12), wherein, operating mechanism (12) warm that starts light at the appointed time, the brightness of this lamp (10) also surpasses the luminance reference level in this stipulated time.
14., wherein, carry out 20 to 100 hours the warm of lighting by operating mechanism (12) according to the described operating mechanism of arbitrary aforementioned claim (12).
15. according to the described operating mechanism of arbitrary aforementioned claim (12), wherein, this operating mechanism (12) has the mechanism that is used to detect lamp life-span or filament state, thereby this operating mechanism (12) is correspondingly carried out or do not carried out and light warm.
16. according to the described operating mechanism of arbitrary aforementioned claim (12), this operating mechanism (12) have be used to receive especially the input of the brightness actual value (21) of optical sensor (20) (16a, 16b).
17. according to the described operating mechanism of arbitrary aforementioned claim (12), this operating mechanism (12) have the input that is used to receive brightness rated value (22) (17a, 17b).
18. according to the operating mechanism (12) of claim 16, wherein, this operating mechanism (12) have the input that is used to receive digital addressable lighting interface brightness rated value (22) or digital signal interface brightness rated value (22) (17a, 17b).
19. an operating mechanism (12) that is used to operate at least one lamp (10), this operating mechanism (12) has:
At least one be used to receive brilliance control information (21,22) input (16a, 16b, 17a, 17b),
Be used for supplying with according to the control of the brilliance control information (21,22) that received the output (23) of the power of lamp (10), wherein the power that will supply with lamp (10) in the warm of lighting at lamp (10) is controlled to be and is not less than minimum permission power stage.
20. an electric ballast (11) that is used to operate the tunable optical of at least one lamp (10) has according to the described operating mechanism of arbitrary aforementioned claim (12).
21. a method of regulating the brightness of lamp (10) according to brilliance control information (21,22), wherein the lighting in the warm of lamp (10), should be with the lamp light modulation to minimum permission light modulation level.
22. an integrated circuit, this integrated circuit is designed to carry out method according to claim 21.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007047141A DE102007047141A1 (en) | 2007-10-02 | 2007-10-02 | Operating device for controlling the baking process of a lamp |
| DE102007047141.8 | 2007-10-02 | ||
| PCT/EP2008/008319 WO2009046914A1 (en) | 2007-10-02 | 2008-10-01 | Operating device for controlling the warm-up time of a lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101816220A true CN101816220A (en) | 2010-08-25 |
| CN101816220B CN101816220B (en) | 2014-10-29 |
Family
ID=40092495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880110096.XA Expired - Fee Related CN101816220B (en) | 2007-10-02 | 2008-10-01 | Operating device for controlling the warm-up time of a lamp |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2208403B1 (en) |
| CN (1) | CN101816220B (en) |
| DE (1) | DE102007047141A1 (en) |
| WO (1) | WO2009046914A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102387649A (en) * | 2010-09-01 | 2012-03-21 | 株式会社电装 | Discharge lamp lighting apparatus |
| CN114176490A (en) * | 2022-02-15 | 2022-03-15 | 极限人工智能(北京)有限公司 | Preheating method of endoscope xenon lamp light source, xenon lamp light source and endoscope |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008054290A1 (en) * | 2008-11-03 | 2010-05-12 | Osram Gesellschaft mit beschränkter Haftung | Arrangement of electronic ballast and connected dimming control device and method for operating a lamp |
| DE102010001925A1 (en) | 2010-02-15 | 2011-08-18 | Osram Gesellschaft mit beschränkter Haftung, 81543 | Lighting control system for actuating dimmable electronic ballast for operating discharge lamps, has operating device receiving trigger signal, where system is designed to control ballasts so that lamps are operated in preset minimal power |
| DE102011008571A1 (en) * | 2011-01-14 | 2012-07-19 | Ceag Notlichtsysteme Gmbh | Luminaire and method for controlling such |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000007416A1 (en) * | 1998-07-28 | 2000-02-10 | Lutron Electronics Co., Inc. | Fluorescent lamp dimmer system with lamp seasoning |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1508130A (en) | 1975-07-22 | 1978-04-19 | Thorn Electrical Ind Ltd | Emergency lighting systems |
| ATE194749T1 (en) * | 1994-04-15 | 2000-07-15 | Knobel Lichttech | BALLAST WITH LAMP CHANGE DETECTION FOR DISCHARGE LAMPS |
| US6504322B2 (en) * | 2000-04-18 | 2003-01-07 | Matsushita Electric Industrial Co., Ltd. | Discharge lamp operating apparatus |
| US7081715B1 (en) * | 2004-12-13 | 2006-07-25 | Jeffrey Jay Goldstein | Method of providing break-in conditioning for a bi-level illumination system |
| DE102005021297A1 (en) | 2005-05-09 | 2006-11-16 | Tridonicatco Gmbh & Co. Kg | Assessment of the state of a heating coil |
| EP1737281A3 (en) * | 2005-06-16 | 2010-11-24 | SE Lightmanagement AG | Electronic Ballast |
| DE102005047985A1 (en) | 2005-10-06 | 2007-04-12 | Tridonicatco Gmbh & Co. Kg | Dynamic coil heater |
-
2007
- 2007-10-02 DE DE102007047141A patent/DE102007047141A1/en not_active Withdrawn
-
2008
- 2008-10-01 CN CN200880110096.XA patent/CN101816220B/en not_active Expired - Fee Related
- 2008-10-01 EP EP08802735.4A patent/EP2208403B1/en not_active Not-in-force
- 2008-10-01 WO PCT/EP2008/008319 patent/WO2009046914A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000007416A1 (en) * | 1998-07-28 | 2000-02-10 | Lutron Electronics Co., Inc. | Fluorescent lamp dimmer system with lamp seasoning |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102387649A (en) * | 2010-09-01 | 2012-03-21 | 株式会社电装 | Discharge lamp lighting apparatus |
| CN102387649B (en) * | 2010-09-01 | 2014-07-16 | 株式会社电装 | Discharge lamp lighting apparatus |
| CN114176490A (en) * | 2022-02-15 | 2022-03-15 | 极限人工智能(北京)有限公司 | Preheating method of endoscope xenon lamp light source, xenon lamp light source and endoscope |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102007047141A1 (en) | 2009-04-09 |
| CN101816220B (en) | 2014-10-29 |
| WO2009046914A1 (en) | 2009-04-16 |
| EP2208403A1 (en) | 2010-07-21 |
| EP2208403B1 (en) | 2013-07-17 |
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