CN101340763A - Control method of double lamp module - Google Patents
Control method of double lamp module Download PDFInfo
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- CN101340763A CN101340763A CNA2007101273913A CN200710127391A CN101340763A CN 101340763 A CN101340763 A CN 101340763A CN A2007101273913 A CNA2007101273913 A CN A2007101273913A CN 200710127391 A CN200710127391 A CN 200710127391A CN 101340763 A CN101340763 A CN 101340763A
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Abstract
The invention discloses a control method used for a dual-lamp module. The dual-lamp module comprises a first lamp source and a second lamp source and is applied to a projection device. The control method of the dual-lamp module comprises the steps of: providing the power supply of the first operation power to the first lamp source and judging whether the first lamp source is started or not. If the first lamp source can not be started, the power supply of the first operation power is stopped to be supplied to the first lamp source and the power supply of the second operation power is supplied to the second lamp source; wherein, the power supply of the second operation power is more than the power supply of the first operation power.
Description
Technical field
The invention relates to the control method of a kind of double lamp module (duallamp module), and particularly relevant for the control method of the double lamp module of a kind of projection arrangement (projection apparatus).
Background technology
Along with development of science and technology, projection arrangement increases day by day to the demand of brightness, uses the projection arrangement in single lamp source can't satisfy the demand of high brightness, and therefore, the projection arrangement that disposes a plurality of lamps source just arises at the historic moment.
In known skill, the brightness when a kind of projection arrangement can use to improve it by the quantity that increases the lamp source, and then make projection arrangement can be used in spacious place or other need the occasion of the projection arrangement of higher brightness.Yet, if the user is when use has the projection arrangement in two lamps source, run into the situation that one of them lamp source is extinguished suddenly or damaged, the problem of the image brightness deficiency that the user can significantly experience projection arrangement and cast out.
More specifically, when one of them lamp source of the projection arrangement with two lamps source was extinguished suddenly or damaged, the image brightness that projection arrangement projected can only be left half.Therefore, the phenomenon that the image brightness that the user can significantly experience projection arrangement to be provided reduces suddenly, and then feel that the image definition that projection arrangement cast out reduces suddenly.
Summary of the invention
The invention reside in the control method that a kind of double lamp module is provided, can't start so that have a wherein lamp source of the double lamp module in two lamp sources, perhaps in use extinguish suddenly or when damaging, can solve known problem by the brightness that improves the illuminating bundle that another lamp source provided.
For reaching above-mentioned purpose, embodiments of the invention propose a kind of control method of double lamp module, and double lamp module comprises the first lamp source and the second lamp source, is applied in the projection arrangement.The control method of above-mentioned double lamp module comprises the power supply that first operand power is provided to the first lamp source, and judges whether the first lamp source starts.If the first lamp source can't start, the power supply that then stops first operand power is provided is to the first lamp source, and the power supply that second operand power is provided is to the second lamp source.Wherein, the power supply of second operand power is greater than the power supply of first operand power.
Embodiments of the invention are summarized as follows in addition:
The power supply that first operand power is provided respectively is to the first lamp source and the second lamp source, and judges whether the first lamp source and the second lamp source start.If one of them can't start the first lamp source and the second lamp source, the power supply that then stops first operand power is provided is to the lamp source that can't start, and makes the power supply of first operand power in the lamp source that offers startup change into the power supply of second operand power.Wherein, the power supply of second operand power is greater than the power supply of first operand power.
In the projection arrangement of control method with double lamp module, when the one in two lamp sources can't start or extinguish, projection arrangement can be adjusted the brightness that increases the illuminating bundle that another lamp source provided, and therefore can keep image brightness or reduce the degree of image brightness decay.
Description of drawings
Figure 1A is the structural representation of a kind of double lamp module of one embodiment of the invention.
Figure 1B is the block schematic diagram of a kind of double lamp module of one embodiment of the invention.
Fig. 2 is the flow chart of control method of a kind of double lamp module of first embodiment of the invention.
Fig. 3 is the flow chart of control method of a kind of double lamp module of second embodiment of the invention.
Fig. 4 is the flow chart of control method of a kind of double lamp module of third embodiment of the invention.
Description of reference numerals
100: double lamp module
110,120: the lamp source
130: close optical element
140,150: fan
160: control module
170: dividing plate
S100: the power supply that first operand power is provided is to the first lamp source
S102: the power supply that the 3rd operand power is provided is to first fan that is suitable for cooling off the first lamp source
S110: judge whether the first lamp source starts
S120: the power supply that stops first operand power is provided is to the first lamp source, and the power supply that second operand power is provided is to the second lamp source, and wherein the power supply of second operand power is greater than the power supply of first operand power
S122: the power supply that the 4th operand power is provided is to second fan that is suitable for cooling off the second lamp source, and wherein the power supply of the 4th operand power is more than or equal to the power supply of the 3rd operand power
S130: judge whether the second lamp source starts
S140: produce error message
S150: continue to provide the power supply of second operand power to the second lamp source
S160: judge whether the second lamp source extinguishes
S170: produce error message
S180: the power supply that first operand power is provided is to the second lamp source
S182: the power supply that the 3rd operand power is provided is to second fan that is suitable for cooling off the second lamp source
S190: judge whether the second lamp source starts
S200: the power supply that stops first operand power is provided is to the second lamp source, and makes the power supply of first operand power that offers the first lamp source change into the power supply of second operand power
S202: make the power supply of the 3rd operand power that offers first fan change into the power supply of the 4th operand power
S210: judge whether the first lamp source extinguishes
S220: continue to provide the power supply of second operand power to the first lamp source
S230: produce error message
S240: continue to provide the power supply of first operand power to the first lamp source and the second lamp source
S250: judge whether the first lamp source and the second lamp source extinguish
S260: one of them extinguishes the first lamp source and the second lamp source, and the power supply that then stops first operand power is provided is to the lamp source of extinguishing, and makes the power supply of first operand power that offers the lamp source of not extinguishing change into the power supply of second operand power
S262: if extinguish in the first lamp source, the power supply that then offers the 3rd operand power of second fan is changed into the power supply of the 4th operand power, and if extinguish in the second lamp source, the power supply that then offers the 3rd operand power of first fan is changed into the power supply of the 4th operand power
S270: all extinguish in the first lamp source and the second lamp source, then produces error message
S300: the power supply that first operand power is provided respectively is to the first lamp source and the second lamp source, and the power supply that the 3rd operand power is provided is to first fan and second fan, and wherein first fan is suitable for cooling off the first lamp source, and second fan is suitable for cooling off the second lamp source
S310: judge whether the first lamp source and the second lamp source all start
S320: one of them can't start the first lamp source and the second lamp source, then stop to provide the power supply of first operand power to the lamp source that can't start, and the power supply that makes first operand power in the lamp source that offers startup changes into the power supply of second operand power, and wherein the power supply of second operand power is greater than the power supply of first operand power
S330: if the first lamp source can't start, the power supply that then offers the 3rd operand power of second fan is changed into the power supply of the 4th operand power, and if the second lamp source can't start, the power supply that then offers the 3rd operand power of first fan is changed into the power supply of the 4th operand power, and wherein the power supply of the 4th operand power is more than or equal to the power supply of the 3rd operand power
S340:, then produce error message if the first lamp source and the second lamp source all can't start or extinguish
S350: continue to provide the power supply of first operand power to the first lamp source and the second lamp source
S360: judge whether the first lamp source and the second lamp source extinguish
S370: one of them extinguishes the first lamp source and the second lamp source, and the power supply that then stops first operand power is provided is to the lamp source of extinguishing, and makes the power supply of first operand power that offers the lamp source of not extinguishing change into the power supply of second operand power
S380: if extinguish in the first lamp source, the power supply that then offers the 3rd operand power of second fan is changed into the power supply of the 4th operand power, and if extinguish in the second lamp source, the power supply that then offers the 3rd operand power of first fan is changed into the power supply of the 4th operand power
S390: all extinguish in the first lamp source and the second lamp source, then produces error message
Embodiment
Please refer to Figure 1A and 1B, the double lamp module 100 of the projection arrangement of first embodiment of the invention (not illustrating) comprises the first lamp source 110, the second lamp source 120, closes optical element 130, first fan 140, second fan 150, control module 160 and dividing plate 170.The first lamp source 110 and the second lamp source 120 are suitable for providing respectively an illuminating bundle, and wherein the bang path of two illuminating bundles that provided of the first lamp source 110 and the second lamp source 120 is orthogonal thereto, and close on the bang path that optical element 130 is disposed at two illuminating bundles.The 140 contiguous first lamp source, 110 configurations of first fan also are suitable for cooling off the first lamp source 110, and second fan, the 150 contiguous second lamp sources 120 dispose and be suitable for cooling off the second lamp source 120.Control module 160 is electrically connected to the first lamp source 110, the second lamp source 120, first fan 140 and second fan 150.Dividing plate 170 is disposed between the first lamp source 110 and the second lamp source 120, to separate the cooling blast that first fan 140 and second fan 150 are provided.Wherein, the first lamp source 110 and the second lamp source 120 for example are bulb or light-emitting diode, and first fan 140 and second fan 150 for example are blower fan or aerofoil fan.
Please refer to Figure 1A to Fig. 2, the control method of the double lamp module of first embodiment of the invention comprises the following steps:
At first, when projection arrangement starts, the power supply unit of projection arrangement (not illustrating) can see through power supply that control module 160 provides first operand power to the first lamp source 110 (S100), and then, control module 160 can judge whether the first lamp source 110 starts (S110).If the first lamp source 110 can't start, then power supply unit can stop to see through power supply that control module 160 provides first operand power to the first lamp source 110, and sees through control module 160 and provide the power supply of second operand power to the second lamp source 120.Wherein, the power supply of second operand power can be greater than the power supply (S120) of first operand power.
More specifically, the preset mode of control module 160 for example is to make power supply unit see through control module 160 to provide the power supply of first operand power to the first lamp source 110 and the second lamp source 120 respectively.But when control module 160 judged that the first lamp source 110 can't start, power supply unit can stop to see through control module 160 provided the power supply of first operand power to the first lamp source 110.And power supply unit can see through the power supply that power supply that control module 160 will will offer first operand power in the second lamp source 120 originally is increased to second operand power, to improve the brightness of the illuminating bundle that the second lamp source 120 provided.
Moreover after step S120, control module 160 can judge whether the second lamp source 120 starts (S130).At this moment, if the second lamp source 120 can't start, then control module 160 can produce error message (S140), changes the first lamp source 110 and the second lamp source 120 to remind the user.But if the second lamp source 120 starts, then power supply unit can continue to provide the power supply of second operand power to the second lamp source 120 (S150) through control module 160.Then, control module 160 can continue to judge that whether the second lamp source 120 extinguishes (S160), closes projection arrangement until the user.Extinguish if control module 160 is judged the second lamp source 120, then control module 160 can produce error message (S170), changes the first lamp source 110 and the second lamp source 120 to remind the user.
But, if judging the first lamp source 110 behind step S110, control module 160 starts, then power supply unit can see through control module 160 provides the power supply of first operand power to the second lamp source 120 (S180).Then, control module 160 can judge whether the second lamp source 120 starts (S190).If the second lamp source 120 can't start, then power supply unit can stop to see through control module 160 provides the power supply of first operand power to the second lamp source 120.And power supply unit can see through the power supply (S200) that power supply that control module 160 will offer first operand power in the first lamp source 110 is changed into second operand power, to improve the brightness of the illuminating bundle that the first lamp source 110 provided.Then, control module 160 can continue to judge that whether the first lamp source 110 extinguishes (S210), closes projection arrangement until the user.Wherein, if control module 160 is judged the first lamp source 110 and is not extinguished, then power supply unit can see through power supply that control module 160 continues second operand power is provided to the first lamp source 110 (S220), and continues to judge that whether the first lamp source 110 extinguishes (S210), closes projection arrangement until the user.But extinguish if control module 160 is judged the first lamp source 110, then control module 160 can produce error message (S230), changes the first lamp source 110 and the second lamp source 120 to remind the user.
Moreover if the control module 160 second lamp source 120 that detects behind step S190 starts, then power supply unit can continue to provide the power supply of first operand power to the first lamp source 110 and the second lamp source 120 (S240) through control module 160.Then, control module 160 can continue to judge that whether the first lamp source 110 and the second lamp source 120 extinguish (S250), close projection arrangement until the user.One of them extinguishes if control module 160 is judged the first lamp sources 110 and the second lamp source 120, and then power supply unit can stop to provide the power supply of first operand power to the lamp source of extinguishing through control module 160.And power supply unit can see through the power supply (S260) that power supply that control module 160 will offer first operand power in the lamp source of not extinguishing is changed into second operand power, to improve the brightness of the illuminating bundle that the lamp source of not extinguishing provided.Then, whether extinguish in the lamp source that the lasting judgement of control module 160 meetings is not extinguished, and closes projection arrangement until the user.Then, if control module 160 judges that the first lamp source 110 and the second lamp source 120 all can't start or all extinguish, then control module 160 can produce error message (S270), changes the first lamp source 110 and the second lamp source 120 to remind the user.
For instance, extinguish if control module 160 is judged the first lamp source 110, then power supply unit can stop to see through control module 160 provides the power supply of first operand power to the first lamp source 110.And power supply unit can see through the power supply that power supply that control module 160 will offer first operand power in the second lamp source 120 is changed into second operand power, to improve the brightness of the illuminating bundle that the second lamp source 120 provided.Then, control module 160 can continue to judge that whether extinguish in the second lamp source 120, closes projection arrangement until the user.After this, if control module 160 is judged the second lamp source 120 and is also extinguished, then power supply unit can stop to see through power supply that control module 160 provides first operand power to the second lamp source 120, and control module 160 can produce error messages, changes the first lamp source 110 and the second lamp source 120 to remind the user.
By in the foregoing description as can be known, when the one in the first lamp source 110 and the second lamp source 120 can't start or extinguish, can be by improving another the operand power in the first lamp source 110 and the second lamp source 120, increasing the brightness of its illuminating bundle, and then keep image brightness or reduce the degree of image brightness decay.And, when the first lamp source 110 and the second lamp source 120 all can't start or extinguish, more can change the first lamp source 110 and the second lamp source 120 to remind the user by producing error message.
Please refer to Fig. 3, the control method of a kind of double lamp module of second embodiment of the invention is identical with first embodiment haply, but present embodiment also comprises the step of control first fan 140 and second fan 150.In the present embodiment, power supply unit can provide the 3rd operand power through control module 160 after step S100 power supply makes first fan 140 with first rotation speed operation to first fan 140 (S102) that is suitable for cooling off the first lamp source 110.Then, extinguish under the situation that maybe can't start in the first lamp source 110, power supply unit can provide the 4th operand power through control module 160 after step S120 power supply makes second fan 150 with second rotation speed operation to second fan 150 (S122) that is suitable for cooling off the second lamp source 120.Wherein, the power supply of the 4th operand power is more than or equal to the power supply of the 3rd operand power.Because power supply unit originally will see through power supply that control module 160 offers second fan 150 is changed into the 4th operand power by the power supply of the 3rd operand power power supply, that is second rotating speed more than or equal to first rotating speed, therefore, second fan 150 can have high rotational speed, to improve the cooling effectiveness in 150 pairs second lamp sources 120 of second fan.
Moreover, under the 110 bootable situations of the first lamp source, power supply unit can provide the 3rd operand power through control module 160 after step S180 power supply makes second fan 150 with second rotation speed operation to second fan 150 (S182) that is suitable for cooling off the second lamp source 120.If the second lamp source 120 is extinguished maybe and can't be started, then power supply unit can be changed into the power supply that offers the 3rd operand power of first fan 140 through control module 160 power supply (S202) of the 4th operand power after step S200, improving rotating speed to the second rotating speed of first fan 140, and then improve the cooling effectiveness in 140 pairs first lamp sources 110 of first fan.
In addition, after step S260, extinguish if control module 160 is judged the first lamp source 110, then power supply unit can see through the power supply that power supply that control module 160 will offer the 3rd operand power of second fan 150 is changed into the 4th operand power.Moreover, if judging the second lamp source 120, control module 160 extinguishes, then power supply unit can see through the power supply (S262) that power supply that control module 160 will offer the 3rd operand power of first fan 140 is changed into the 4th operand power.
In simple terms, after the first lamp source 110 or 120 startups of the second lamp source, power supply unit also can see through control module 160 and start corresponding first fan 140 or second fan 150.And, when one of them can't start or extinguish when the first lamp source 110 and the second lamp source 120, power supply unit can see through control module 160 will offer the power supply of changing into the 4th operand power corresponding to the power supply of the 3rd operand power of the fan in the lamp source of not extinguishing improving rotation speed of the fan, and then improve the cooling effectiveness of fan to the lamp source of not extinguishing.
Yet, the present invention is not limited to this embodiment, for instance, power supply unit can see through control module 160 simultaneously and start lamp source and corresponding fans.Moreover, when power supply unit stops to provide the lamp source of power supply to extinguishing, also can stop to provide the fan in the lamp source that power supply extinguishes to correspondence simultaneously.
Please refer to Fig. 4, the control method of a kind of double lamp module of third embodiment of the invention is identical with second embodiment haply.But in this embodiment, when projection arrangement starts, power supply unit can see through power supply that control module 160 provides first operand power respectively to the first lamp source 110 and the second lamp source 120, and the power supply that the 3rd operand power is provided is to first fan 140 and second fan 150 (S300).Then, control module 160 can judge whether the first lamp source 110 and the second lamp source 120 all start (S310).Wherein, if one of them can't start the first lamp source 110 and the second lamp source 120, power supply unit can stop to see through power supply that control module 160 provides first operand power to the lamp source that can't start, and makes the power supply of first operand power in the lamp source that offers startup change into the power supply (S320) of second operand power.
Then, if control module 160 judges that the first lamp source 110 can't start, then power supply unit can see through the power supply that power supply that control module 160 will offer the 3rd operand power of second fan 150 is changed into the 4th operand power.Perhaps, if control module 160 judges that the second lamp source 120 can't start, then power supply unit can see through the power supply (S330) that power supply that control module 160 will offer the 3rd operand power of first fan 140 is changed into the 4th operand power.And if the first lamp source 110 and the second lamp source 120 all can't start or extinguish, then control module 160 can produce error message (S340), changes the first lamp source 110 and the second lamp source 120 to remind the user.
In addition, if the first lamp source 110 and the second lamp source 120 all start, then power supply unit can continue to provide the power supply of first operand power to the first lamp source and the second lamp source (S350) through control module 160, and step S360 to S390 is identical with the step S250 to S270 of second embodiment, does not repeat them here.
In sum, because when the one in two lamp sources can't start or extinguish, projection arrangement can improve the operand power in another lamp source by the control method of double lamp module, so that the brightness of its illuminating bundle that is provided to be provided, therefore can keep image brightness or reduce the degree that image brightness decays, the unexpected phenomenon that reduces of image brightness that is provided to make the user can significantly not experience projection arrangement.
Moreover, when the one in two lamp sources can't start or extinguish, also can improve rotating speed corresponding to the fan in the lamp source of not extinguishing, the lamp source that therefore more can avoid not extinguishing can be too high and overheated because of power after improving brightness, and then avoid reduce the useful life in lamp source.
The above person of thought, only be the preferred embodiments of the present invention, when not limiting scope of the invention process with this, i.e. simple equivalent variations and the modification of being done according to claim of the present invention and invention description content generally all still belongs in the scope that patent of the present invention contains.Arbitrary embodiment of the present invention in addition or claim must not reached the disclosed whole purposes of the present invention or advantage or characteristics.In addition, summary part and title only are the usefulness that is used for assisting the patent document search, are not to be used for limiting interest field of the present invention.
Claims (16)
1, a kind of control method of double lamp module, this double lamp module comprise the first lamp source and the second lamp source, are applied in the projection arrangement, and the control method of this double lamp module comprises the following steps:
The power supply that first operand power is provided is to this first lamp source; And
Judge whether this first lamp source starts, if this first lamp source can't start, the power supply that then stops this first operand power is provided is to this first lamp source, and the power supply that second operand power is provided is to this second lamp source, and wherein the power supply of this second operand power is greater than the power supply of this first operand power.
2, the control method of double lamp module as claimed in claim 1, wherein if this first lamp source starts, the power supply that this first operand power then is provided is to this second lamp source.
3, the control method of double lamp module as claimed in claim 2 wherein after the power supply that this first operand power is provided is to this second lamp source, also comprises the following steps:
Judge whether this second lamp source starts,, then continue to provide the power supply of this first operand power to this first lamp source and this second lamp source if this second lamp source starts.
4, the control method of double lamp module as claimed in claim 3, wherein if this second lamp source can't start, the power supply that then stops this first operand power is provided is to this second lamp source, and makes the power supply of this first operand power that offers this first lamp source change into the power supply of this second operand power.
5, the control method of double lamp module as claimed in claim 3 wherein after the power supply that continues to provide this first operand power is to this first lamp source and this second lamp source, also comprises the following steps:
Judge whether this first lamp source and this second lamp source extinguish, if one of them extinguishes this first lamp source and this second lamp source, the power supply that then stops this first operand power is provided is to this lamp source of extinguishing, and makes the power supply of this first operand power that offers this lamp source of not extinguishing change into the power supply of this second operand power.
6, the control method of double lamp module as claimed in claim 1 wherein if this first lamp source and this second lamp source all can't start or all extinguish, then produces an error message.
7, the control method of double lamp module as claimed in claim 1, this projection arrangement also comprise first fan and second fan, and the control method of this double lamp module also comprises the following steps: after the power supply that this first operand power is provided is to this first lamp source
The power supply that the 3rd operand power is provided respectively is to first fan and second fan, and wherein this first fan is suitable for cooling off this first lamp source, and this second fan is suitable for cooling off this second lamp source.
8, the control method of double lamp module as claimed in claim 7, wherein extinguish maybe and can't start as if this first lamp source, the power supply that then will offer the 3rd operand power of this second fan is changed into the power supply of the 4th operand power, and if this second lamp source extinguish and maybe can't start, the power supply that then will offer the 3rd operand power of this first fan is changed into the power supply of the 4th operand power, and wherein the power supply of the 4th operand power is more than or equal to the power supply of the 3rd operand power.
9, the control method of double lamp module as claimed in claim 1, wherein this first lamp source and this second lamp source are bulb or light-emitting diode.
10, a kind of control method of double lamp module, this double lamp module comprise the first lamp source and the second lamp source, are applied in the projection arrangement, and the control method of this double lamp module comprises the following steps:
The power supply that first operand power is provided respectively is to this first lamp source and this second lamp source; And
Judge whether this first lamp source and this second lamp source start, if one of them can't start this first lamp source and this second lamp source, then stop to provide the power supply of this first operand power to this lamp source that can't start, and the power supply that makes this first operand power in this lamp source that offers startup changes into the power supply of second operand power, and wherein the power supply of this second operand power is greater than the power supply of this first operand power.
11, the control method of double lamp module as claimed in claim 10 wherein if this first lamp source and this second lamp source all start, then continues to provide the power supply of this first operand power to this first lamp source and this second lamp source.
12, the control method of double lamp module as claimed in claim 11 wherein after the power supply that continues to provide this first operand power is to this first lamp source and this second lamp source, also comprises the following steps:
Judge whether this first lamp source and this second lamp source extinguish, if one of them extinguishes this first lamp source and this second lamp source, the power supply that then stops this first operand power is provided is to this lamp source of extinguishing, and makes the power supply of this first operand power that offers this lamp source of not extinguishing change into the power supply of this second operand power.
13, the control method of double lamp module as claimed in claim 10 wherein if this first lamp source and this second lamp source all can't start or extinguish, then produces an error message.
14, the control method of double lamp module as claimed in claim 10, this projection arrangement also comprises first fan and second fan, the control method of this double lamp module also comprises the following steps: after the power supply that this first operand power is provided respectively is to this first lamp source and this second lamp source
The power supply that the 3rd operand power is provided respectively is to first fan and second fan, and wherein this first fan is suitable for cooling off this first lamp source, and this second fan is suitable for cooling off this second lamp source.
15, the control method of double lamp module as claimed in claim 14, wherein extinguish maybe and can't start as if this first lamp source, the power supply that then will offer the 3rd operand power of this second fan is changed into the power supply of the 4th operand power, and if this second lamp source extinguish and maybe can't start, the power supply that then will offer the 3rd operand power of this first fan is changed into the power supply of the 4th operand power, and wherein the power supply of the 4th operand power is more than or equal to the power supply of the 3rd operand power.
16, the control method of double lamp module as claimed in claim 10, wherein this first lamp source and this second lamp source are bulb or light-emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101273913A CN101340763A (en) | 2007-07-02 | 2007-07-02 | Control method of double lamp module |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007101273913A CN101340763A (en) | 2007-07-02 | 2007-07-02 | Control method of double lamp module |
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| CN101340763A true CN101340763A (en) | 2009-01-07 |
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| CNA2007101273913A Pending CN101340763A (en) | 2007-07-02 | 2007-07-02 | Control method of double lamp module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102291870A (en) * | 2010-04-09 | 2011-12-21 | 松下电工株式会社 | Illumination device, lamp, lighting circuit, and illumination apparatus |
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2007
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102291870A (en) * | 2010-04-09 | 2011-12-21 | 松下电工株式会社 | Illumination device, lamp, lighting circuit, and illumination apparatus |
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