CN102625526A - Luminous unit and lighting method thereof - Google Patents
Luminous unit and lighting method thereof Download PDFInfo
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- CN102625526A CN102625526A CN2012100509027A CN201210050902A CN102625526A CN 102625526 A CN102625526 A CN 102625526A CN 2012100509027 A CN2012100509027 A CN 2012100509027A CN 201210050902 A CN201210050902 A CN 201210050902A CN 102625526 A CN102625526 A CN 102625526A
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Abstract
The invention relates to a luminous unit and a lighting method thereof. The luminous unit comprises a current source, a plurality of luminous component groups, a detector, and a switching unit, wherein the plurality of the luminous component groups and the detector are electrically connected with the current source; the detector detects the light strength of the luminous component groups, and generates a detecting signal when the light strength of one of the luminous component groups is different from a predetermined value; the switch unit is electrically connected with the current source, the plurality of the luminous component groups and the detector; and the switch unit comprises a controller which enables the luminous component groups to be switched and lighted on the basis of the detected signal. The luminous unit and the lighting method thereof have the advantage that the luminous component groups can effectively prolong the service life of the luminous unit by switching and lighting.
Description
Technical field
The present invention relates to a kind of light source module, relate in particular to luminescence unit and means of illumination thereof in this light source module.
Background technology
Light-emitting diode (light emitting diode; LED) have that volume is little, long service life, advantage such as cracky, not mercurous and power saving not; Therefore little by little replace the status of fluorescent tube and incandescent lamp bulb, be widely used in lighting source and decorative light-source.
At present common on the market use light emitting diode illuminating apparatus uses single group of light-emitting diode that the light source when lighting is provided, and meaning is that all light-emitting diodes in the above-mentioned light emitting diode illuminating apparatus were lighted in the same time.
Though light-emitting diode has long characteristics of life-span, when light-emitting diode is being lighted down for a long time, its luminous intensity can increase and gradually decay along with the time of lighting.Moreover the luminous efficiency of light-emitting diode is lower than 70% of original luminous efficiency when dispatching from the factory (and luminous efficiency) and can be considered end-of-life; Therefore, when exhaust the useful life of this light-emitting diode, promptly can't be utilized again effectively.
Moreover; The LED light lamp group (string) of prior art is on the plane circuit board more than one plural light-emitting diode is set; When need improve the arranging density of those light-emitting diodes; Then supply the arranging density of the solder joint of those light-emitting diode settings also must relatively improve on the circuit board, thus, increase and make the probability of short circuit when welding of two adjacent light-emitting diodes.
Summary of the invention
The technical issues that need to address of the present invention have provided a kind of luminescence unit, are intended to solve the above problems.
The present invention also provides the means of illumination of stating luminescence unit.
In order to solve the problems of the technologies described above, the present invention realizes through following technical scheme:
Luminescence unit of the present invention comprises: a current source; A plurality of luminescence component groups; Described a plurality of luminescence component group is electrically connected on this current source; One detector; Described detector is electrically connected on this current source; The luminous intensity of those luminescence component groups of this detector detecting also produces a detection signal when one of therein the luminous intensity of luminescence component group is different from a predetermined value; An and switching unit; Described switch unit is electrically connected on this current source, those luminescence component groups and this detector; This switch unit comprises: a controller; This controller is to light to let those luminescence component groups switch according to this detection signal.
Means of illumination of the present invention, realize through following steps:
Step a: plural luminescence component group is provided, and those luminescence component groups are electrically connected on a current source;
Step b: provide one have a controller switch unit, this switch unit is lighted to let those luminescence component groups switch according to one of this controller control signal;
Step c: utilize at least one the luminous intensity wherein of those luminescence component groups of detector detecting whether to equal a predetermined value;
Steps d:, then switch and light other luminescence component group if at least one the luminous intensity wherein of those luminescence component groups is different from this predetermined value;
Step e: whether the luminous intensity of utilizing these those luminescence component groups of detector detecting is all less than a predetermined value;
Step f: if the luminous intensity of these those luminescence component groups of detector detecting judges then all less than this predetermined value whether this current source equals a critical value;
Step g. hold step f,, then improve this current source, and repeated execution of steps b is to step e if this current source is not equal to this critical value.
Compared with prior art, the invention has the beneficial effects as follows: light through switching and make those luminescence component groups can promote the useful life of this luminescence unit effectively.
Description of drawings
Fig. 1 is the circuit block diagram of the luminescence unit of first embodiment of the invention.
Fig. 2 is the flow chart of the means of illumination of first embodiment of the invention.
Fig. 3 is the stereogram of the light source module of first embodiment of the invention.
Fig. 4 is the circuit block diagram of the luminescence unit of second embodiment of the invention.
Fig. 5 is the stereogram of the luminescence unit of second embodiment of the invention.
Fig. 6 is the partial enlarged drawing of the light source module of second embodiment of the invention.
Fig. 7 is the partial enlarged drawing of the light source module of third embodiment of the invention.
Fig. 8 is the vertical view of the light source module of fourth embodiment of the invention.
Fig. 9 is the vertical view of the light source module of fifth embodiment of the invention.
Figure 10 is the vertical view of the light source module of sixth embodiment of the invention.
Figure 11 is the stereogram of the light source module of seventh embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:
For reaching above-mentioned purpose, the present invention provides a kind of luminescence unit, and this luminescence unit comprises a current source, a plurality of luminescence component group, a detector and a switching unit.Those luminescence component groups are electrically connected on this current source; This detector is electrically connected on this current source; The luminous intensity of these those luminescence component groups of detector detecting also produces a detection signal when the luminous intensity of one of them luminescence component group is different from a predetermined value; This switch unit is electrically connected on this current source, those luminescence component groups and this detector, and this switch unit comprises a controller, and this controller system lights to let those luminescence component groups switch according to this detection signal.
According to a specific embodiment of the present invention, wherein respectively this luminescence component group comprises a circuit layer and at least one luminescence component, and this luminescence component is electrically connected on this circuit layer and has an exiting surface and an optical axis.
According to a specific embodiment of the present invention, wherein respectively this luminescence component group comprises a plurality of luminescence components, and dislocation arrangement and those optical axises roughly were parallel shape before and after those exiting surfaces of those luminescence components were.
According to a specific embodiment of the present invention, wherein this switch unit more comprise one be electrically connected on this controller metering device or timer.
According to a specific embodiment of the present invention, wherein respectively this luminescence component group comprises plural luminescence component, and those luminescence components are that face is penetrated formula light-emitting diode or lateral type light-emitting diode.
According to a specific embodiment of the present invention, wherein respectively this luminescence component group comprises plural luminescence component, and these luminescence components comprise at least one low-power luminescence component or at least one high-power light emitting assembly.
The present invention provides a kind of light source module in addition; This light source module comprises a LGP and a luminescence unit; This LGP has at least one incidence surface; This luminescence unit is arranged at one of this incidence surface side and comprises a current source, a plurality of luminescence component group, a detector and a switching unit, and those luminescence component groups are arranged at one of this incidence surface side and are connected in this current source, and this detector is electrically connected on this current source and those luminescence component groups; The luminous intensity of these these luminescence component groups of detector detecting also produces a detection signal when the luminous intensity of one of them luminescence component group is different from a predetermined value; This switch unit is electrically connected on this current source, those luminescence component groups and this detector, and this switch unit comprises a controller, and this controller is to light to let those luminescence component groups switch according to this detection signal.
According to a specific embodiment of the present invention, wherein respectively this luminescence component group comprises a circuit layer and at least one luminescence component, and this luminescence component is electrically connected on this circuit layer and has an exiting surface and an optical axis.
According to a specific embodiment of the present invention, wherein respectively this luminescence component group comprises a plurality of luminescence components, and dislocation arrangement and those optical axises roughly were parallel shape before and after those exiting surfaces of these luminescence components were.
According to a specific embodiment of the present invention, wherein this switch unit more comprise one be electrically connected on this controller metering device or timer.
According to a specific embodiment of the present invention, wherein respectively this luminescence component group comprises plural luminescence component, and those luminescence components are that face is penetrated formula light-emitting diode or lateral type light-emitting diode.
According to a specific embodiment of the present invention, wherein respectively this luminescence component group comprises plural luminescence component, and these luminescence components comprise at least one low-power luminescence component or at least one high-power light emitting assembly.
According to a specific embodiment of the present invention, wherein this incidence surface comprises at least one protuberance and at least one depressed part that is staggered, and those luminescence component groups are arranged at one of this protuberance and this depressed part side respectively.
According to a specific embodiment of the present invention, wherein this LGP has two relative incidence surfaces, and this protuberance of one of them incidence surface and this depressed part regard to this protuberance and this depressed part of another incidence surface respectively.
According to a specific embodiment of the present invention, wherein this LGP has two relative incidence surfaces, and this protuberance of one of them incidence surface and this depressed part regard to this depressed part and this protuberance of another incidence surface respectively.
According to a specific embodiment of the present invention, wherein this LGP has two adjacent incidence surfaces, and this protuberance of one of them incidence surface is adjacent to this depressed part of another incidence surface.
According to a specific embodiment of the present invention, wherein this LGP has two adjacent incidence surfaces, and this protuberance of one of them incidence surface is adjacent to this protuberance of another incidence surface.
The present invention more provides a kind of means of illumination, and this means of illumination comprises: step a. provides plural luminescence component group, and those luminescence component groups are electrically connected on a current source; Step b. provide one have a controller switch unit, this switch unit is lighted to let those luminescence component groups switch according to one of this controller control signal; Step c utilizes at least one the luminous intensity wherein of these luminescence component groups of detector detecting whether to equal a predetermined value; Steps d. hold step c,, then switch and light other luminescence component group if at least one the luminous intensity wherein of those luminescence component groups is different from this predetermined value; Whether step e. utilizes the luminous intensity of these those luminescence component groups of detector detecting all less than a predetermined value; Step f. holds step e, if the luminous intensity of these those luminescence component groups of detector detecting judges then all less than this predetermined value whether this current source equals a critical value; Step g. hold step f,, then improve this current source, and repeated execution of steps b is to step e if this current source is not equal to this critical value.
According to a specific embodiment of the present invention, after step f,, then stop to light those luminescence component groups if this current source equals this critical value.
Cooperate and to consult first figure, be the circuit block diagram of the luminescence unit of first embodiment of the invention.This luminescence unit 14 comprises a current source 140, a plurality of luminescence component group 142, a detector 144 and a switching unit 146.Those luminescence component groups 142 are electrically connected on this current source 140; In the present embodiment; Those luminescence component groups 142 are that example explanation and these luminescence component groups 142 are and are connected in parallel with two groups, but must know that this quantity is merely an embodiment, are not the restrictions of claim of the present invention.
This detector 144 is electrically connected on this current source 140 and detects the luminous intensity of those luminescence component groups 142, when wherein the luminous intensity of at least one luminescence component group 142 is different from a predetermined value, produces a detection signal.This detector 144 can for example be optical diode (photodiode) or optical conductor (photoconductor), other the suitable optical detector that uses that has common knowledge in the certainly affiliated technical field.
This switch unit 146 is electrically connected on this current source 140, those luminescence component groups 142 and this detector 144; This switch unit 146 comprises a controller 1460, and this controller 1460 receives this detection signal and lights to let those luminescence component groups 142 switch according to this detection signal.This switch unit 146 can automatically switch lights those luminescence component groups 142, and perhaps this switch unit 146 can pass through a Tip element 147, as: buzzer, light those luminescence component groups 142 to point out the user manually to switch.
Moreover; This luminescence unit 14 more comprises a timer 148; This timer 148 is electrically connected on this controller 1460 of this current source 140 and this switch unit; Number during in order to the use of those luminescence component groups 142 of accumulative total, and when number equals a predetermined value when the use of one of them luminescence component group 142, see a timing signal off and give this controller 1460.This controller 1460 is accepted this timing signal and is lighted to let those luminescence component groups 142 switch according to this timing signal.
Cooperate simultaneously and consult second figure, second figure is the flow chart of the means of illumination of first embodiment of the invention.At first in step S300, a plurality of luminescence component groups 142 are provided, those luminescence component groups 142 are electrically connected on a current source 140; Those luminescence component groups 142 can be and are connected in series or are connected in parallel, and are electrically connected on this current source 140 again.
Afterwards, provide the switch unit 146 (step S302) of a controller 1460, this switch unit 146 is electrically connected on this current source 140 and those luminescence component groups 142, and this switch unit 146 switches according to a detection signal lights these luminescence component groups 142.
Then in step S304, a detector 144 is provided, whether one of them person's of these detector 144 those luminescence component groups 142 of detecting luminous intensity equals a predetermined value.After step S304,, then export this detection signal and switch and light other luminescence component group (step S306) if this luminous intensity is different from this predetermined value.After step S304, if these luminescence component group 142 luminous intensities are same as this predetermined value, then continue to light luminescence component group 142 (step S307) originally, and detect the luminous intensity of these luminescence component groups 142 through this detector 144 constantly.
Moreover after step S306, whether the luminous intensity of utilizing these detector 144 other luminescence component groups 142 of detecting is all less than this predetermined value (step S308).After step S308, if the luminous intensity of those luminescence component groups 142 all less than this predetermined value, then utilizes this controller 1460 to judge whether the current value of this current source 140 equals a critical value (step S310).After step S310, if the current value of this current source 140 is not equal to this critical value, then improve the current value (step S312) of this current source 140 through this controller 146, and repeating step S304-S310.After step S310,, then stop to light whole luminescence component groups 142 (step S314) if the current value of this current source 140 equals this critical value.
After step S308; If the luminous intensity of one or more luminescence component group 142 in other luminescence component group 142 is not less than this predetermined value, this switch unit 146 is that switching point light intensity is not less than the luminescence component group 142 of this predetermined value or alternately switches and lights the luminescence component group 142 that those luminous intensities are not less than this predetermined value.
In sum, the first embodiment means of illumination is lighted these luminescence component groups 142 with switching, thus, can promote the useful life of these luminescence component groups 142.
Cooperate and to consult the 3rd figure, be the stereogram of the light source module of first embodiment of the invention.The luminescence unit 12 that the present invention proposes can be applied in the light source module 1; Specifically; This light source module 1 comprises a LGP 12 and above-mentioned luminescence unit 14, and this luminescence unit 14 is arranged at one of one of this LGP 12 incidence surface 120 side and emits beam towards this incidence surface 120.
This LGP 12 uses light-transmitting materials to process, as: the composite material of polymethyl methacrylate (PMMA), synthetic resin, propylene (acryl), Merlon (PC), polyester (PET), polyolefin (Polyolefines), glass or above-mentioned material.In present embodiment, this LGP 12 is roughly rectangular, and this incidence surface 120 is roughly the plane and is one of these LGP 12 long side directions side, during actual enforcement then not as limit.
In present embodiment, respectively this luminescence component group 142 comprises a circuit layer 1420 and at least one luminescence component 1422; This circuit layer 1420 can for example be copper foil circuit or silver slurry circuit and warp bending formation a plurality of protuberances that are staggered and recess.Respectively this luminescence component group 142 can comprise one or more luminescence components 1422; In present embodiment; Respectively this luminescence component group 142 is an example to comprise 19 luminescence components 1422, and preferably, those luminescence components 1422 are lateral type (side view) light-emitting diode; But must know that this quantity is merely an embodiment, is not the restriction of claim of the present invention.Moreover respectively this luminescence component group 142 can only comprise low-power luminescence component or high-power light emitting assembly, and perhaps, respectively this luminescence component group 142 can comprise low-power luminescence component and high-power light emitting assembly simultaneously.Wherein, the high-power light emitting assembly is meant that (the low-power luminescence component is meant the luminescence component of the not enough 0.5W of input power to 1 watt of input power for Walt, W) above luminescence component.
Respectively this luminescence component 1422 has an exiting surface 1423 and an optical axis I, the symmetry axis of light light intensity distributions in the space that this optical axis I sends for this luminescence component 1422 respectively.Those luminescence components 1422 are electrically connected on this circuit layer 1420 and are arranged at those protuberances and recess respectively, make those exiting surfaces 1423 of those luminescence components 1422 be front and back dislocation arrangement.Moreover those optical axises I of those luminescence components 1422 roughly is parallel shape.
Consult first figure again, switch through this switch unit 146 and light those luminescence component groups 142, can promote the useful life of those luminescence components 1422 effectively, and then promote the useful life of this light source module 1.
Cooperate and to consult the 4th figure, be the circuit block diagram of the luminescence unit of second embodiment of the invention.This luminescence unit 24 of this luminescence unit comprises a current source 240, two luminescence component groups 242, a detector 244, a switching unit 246 and a metering device 248.Those luminescence component groups 242 are electrically connected on this current source 240, and those luminescence component groups 242 are and are connected in series, but must know that this quantity is merely an embodiment, are not the restrictions of claim of the present invention.
This detector 244 is electrically connected on this current source 240 and detects the luminous intensity of those luminescence component groups 242, when wherein the luminous intensity of at least one luminescence component group 242 is different from a predetermined value, produces a detection signal.
This switch unit 246 is electrically connected on this current source 240, those luminescence component groups 242 and this detector 244; This switch unit 246 comprises a controller 2460, and this controller 2460 receives this detection signal and lights to let those luminescence component groups 242 switch according to this detection signal.
This metering device 248 is electrically connected on this controller 2460 of this current source 240 and this switch unit; Switching times in order to these luminescence component groups 242 of accumulative total; And when number equals a predetermined value when the use of one of them luminescence component group 242, see a metering signal off and give this controller 2460.This controller 2460 is accepted this metering signal and is lighted to let those luminescence component groups 242 switch according to this metering signal.
Cooperate and to consult the 5th figure and the 6th figure, be the stereogram and the partial enlarged drawing of the luminescence unit of second embodiment of the invention.The luminescence unit 22 that the present invention proposes can be applied in the light source module 2; Specifically; This light source module 2 comprises a LGP 22 and above-mentioned luminescence unit 24, and this luminescence unit 24 is arranged at one of one of this LGP 22 incidence surface 220 side and emits beam towards this incidence surface 220.
This LGP 22 uses light-transmitting materials to process and comprises an incidence surface 220, and in present embodiment, this incidence surface 220 is one of these LGP 22 long side directions side, does not then limit with this during actual enforcement.This incidence surface 220 comprises at least one protuberance 2202 and at least one depressed part 2204 that is staggered.
Those luminescence component groups 242 are arranged at one of this incidence surface 220 side respectively, and in present embodiment, and these luminescence component groups 242 are and are connected in series.Respectively this luminescence component group 242 comprises at least one circuit layer 2420 and a plurality of luminescence component 2422.This circuit layer 2420 is arranged at one of this incidence surface 220 side; And preferably; This circuit layer 2420 can fit in these protuberances 2202 and these depressed parts 2204 of this incidence surface 220 through an adhesive agent (figure does not show), and this circuit layer 2420 can for example be copper foil circuit or silver slurry circuit.
Respectively this luminescence component 2422 has an exiting surface 2423 and an optical axis I, and those luminescence components 2422 are electrically connected on this circuit layer 2420.Those luminescence components 2422 are crisscross arranged in one of this incidence surface 220 side; In present embodiment; Those luminescence components 2422 are arranged at these depressed parts 2204 and this protuberance 2202 respectively, make those luminescence components 2422 be before and after dislocation arrange and those optical axises I roughly is parallel shape.In present embodiment, respectively this luminescence component group 242 is that example and being is connected in series to comprise 8 luminescence components 2422, and preferably, those luminescence components 2422 are penetrated formula (top view) light-emitting diode for face; But must know that this quantity and connected mode are merely an embodiment, is not the restriction of claim of the present invention.These luminescence component groups 242 can directly form through circuit layer 2420 and electrically connect, and perhaps, those luminescence component groups 242 also can electrically connect to form through connecting one of those circuit layers 2420 lead 25.Certainly, its means of illumination is identical with the means of illumination of above-mentioned first embodiment, then will not give unnecessary details at this.
Cooperate and to consult the 7th figure, be the partial enlarged drawing of the light source module of third embodiment of the invention.The light source module 2a of present embodiment and the light source module 2 of above-mentioned second embodiment are similar, and both difference is: those luminescence components 2422 of the luminescence unit shown in the 7th figure are to be through this circuit layer 2420a to be connected in parallel.Thus, can avoid after single luminescence component 2422 faults other luminescence component 2422 to be lighted effectively.
Cooperate and to consult the 8th figure, be the vertical view of the light source module of fourth embodiment of the invention.The light source module 2b of present embodiment and the light source module 2 of above-mentioned second embodiment are similar; Both difference is: the LGP 22b shown in the 8th figure has two relative incidence surface 220b, and those incidence surfaces 220b is respectively one of this LGP 22b short side direction side.Respectively this incidence surface 220b has a plurality of protuberance 2202b and the depressed part 2204b that is staggered; And those protuberances 2202b and those depressed parts 2204b of those protuberances 2202b of one of them incidence surface 220b and corresponding another incidence surface 220b of those depressed parts 2204b system are provided with.Cooperate simultaneously and consult the 4th figure; This two luminescence components group 242 of this luminescence unit 24 is arranged at one of this two incidence surface 220b side respectively; And those luminescence components 2422 are arranged at one of those protuberances 2202b and these depressed parts 2204b side respectively, and towards this incidence surface 220b emergent ray.This switch unit 246 is to switch to light those luminescence component groups 242, to promote the useful life of this luminescence component 2422.
Cooperate and to consult the 9th figure, be the vertical view of the light source module of fifth embodiment of the invention.The light source module 2 of above-mentioned second embodiment of light source module 2c of present embodiment is similar, and both difference is: the LGP 22c shown in the 9th figure has two relative incidence surface 220c, and those incidence surfaces 220c is respectively one of this LGP 22c short side direction side.Respectively this incidence surface 220c has a plurality of protuberance 2202c and the depressed part 2204c that is staggered; And those protuberances 2202c of one of them incidence surface 220c and those depressed parts 2204c system are in the face of those depressed parts 2204c and those protuberances 2202c of another incidence surface 220c.Cooperate simultaneously and consult the 4th figure; This two luminescence components group 242 of this luminescence unit 24 is arranged at one of this two incidence surface 220c side respectively, and those luminescence components 2422 are arranged in one of those protuberances 2202c and these depressed parts 2204c side respectively and towards this incidence surface 220c emergent ray.This switch unit 246 switches lights these luminescence component groups 242, to promote the useful life of this luminescence component 2422.
Cooperate and to consult the tenth figure, be the vertical view of the light source module of sixth embodiment of the invention.The light source module 2d of present embodiment and the light source module 2 of above-mentioned second embodiment are similar; Both difference is: the LGP 22d shown in the tenth figure has two adjacent incidence surface 220d, and respectively this incidence surface 220d has a plurality of protuberance 2202d and the depressed part 2204d that is staggered.Cooperate simultaneously and consult the 4th figure; This two luminescence components group 242 of this luminescence unit 24 is arranged at one of this two incidence surface 220d side respectively, and these luminescence components 2422 are arranged in one of those protuberances 2202d and these depressed parts 2204d side respectively and towards this incidence surface 220d emergent ray.This switch unit 246 switches lights those luminescence component groups 242, to promote the useful life of this luminescence component 2422.
Cooperate and to consult the 11 figure, be the stereogram of the light source module of seventh embodiment of the invention.The light source module 1e of present embodiment and the light source module 1 of above-mentioned first embodiment are similar; Both difference is: the incidence surface 120e of the LGP 12e shown in the 11 figure is the plate face of this LGP 12e; Those luminescence component groups 142 are arranged at this incidence surface 120e, and respectively those exiting surfaces 1423 of this luminescence component group 24 and those luminescence components 1422 are to emit beam in the face of this incidence surface 120e and towards this incidence surface 120e.Certainly, its means of illumination is identical with the means of illumination of above-mentioned first embodiment, then will not give unnecessary details at this.
So above-described, be merely the present invention's preferred embodiment, when the scope that can not limit the present invention's enforcement, promptly all equalizations of doing according to claim of the present invention change and modify etc., all should still belong in the scope that claim of the present invention protects.
Claims (8)
1. a luminescence unit comprises: a current source; A plurality of luminescence component groups; Described a plurality of luminescence component group is electrically connected on this current source; It is characterized in that also comprising: a detector; Described detector is electrically connected on this current source; The luminous intensity of those luminescence component groups of this detector detecting also produces a detection signal when one of therein the luminous intensity of luminescence component group is different from a predetermined value; An and switching unit; Described switch unit is electrically connected on this current source, those luminescence component groups and this detector; This switch unit comprises: a controller; This controller is to light to let those luminescence component groups switch according to this detection signal.
2. luminescence unit according to claim 1 is characterized in that: respectively this luminescence component group comprises a circuit layer and at least one luminescence component, and this luminescence component is electrically connected on this circuit layer and has an exiting surface and an optical axis.
3. luminescence unit according to claim 2 is characterized in that: respectively this luminescence component group comprises a plurality of luminescence components, and dislocation arrangement and those optical axises roughly were parallel shape before and after those exiting surfaces of those luminescence components were.
4. luminescence unit according to claim 1 is characterized in that: this switch unit also comprises: one is electrically connected on the metering device or the timer of this controller.
5. luminescence unit according to claim 1 is characterized in that: respectively this luminescence component group comprises plural luminescence component; Those luminescence components are that face is penetrated formula light-emitting diode or lateral type light-emitting diode.
6. luminescence unit according to claim 1 is characterized in that: respectively this luminescence component group comprises plural luminescence component, and those luminescence components comprise at least one low-power luminescence component or at least one high-power light emitting assembly.
7. means of illumination, realize through following steps:
Step a: plural luminescence component group is provided, and those luminescence component groups are electrically connected on a current source;
Step b: provide one have a controller switch unit, this switch unit is lighted to let those luminescence component groups switch according to one of this controller control signal;
Step c: utilize at least one the luminous intensity wherein of those luminescence component groups of detector detecting whether to equal a predetermined value;
Steps d:, then switch and light other luminescence component group if at least one the luminous intensity wherein of those luminescence component groups is different from this predetermined value;
Step e: whether the luminous intensity of utilizing these those luminescence component groups of detector detecting is all less than a predetermined value;
Step f: if the luminous intensity of these those luminescence component groups of detector detecting judges then all less than this predetermined value whether this current source equals a critical value;
Step g. hold step f,, then improve this current source, and repeated execution of steps b is to step e if this current source is not equal to this critical value.
8. means of illumination according to claim 18, wherein: after step f,, then stop to light those luminescence component groups if this current source equals this critical value.
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| CN201869409U (en) * | 2010-10-28 | 2011-06-15 | 捷能光电科技有限公司 | Automatic dimming device of LED lighting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930387A (en) * | 2015-06-11 | 2015-09-23 | 合肥鑫晟光电科技有限公司 | LED lamp strip structure, controlling method of LED lamp strip structure, backlight module and liquid-crystal display device |
| US9915778B2 (en) | 2015-06-11 | 2018-03-13 | Boe Technology Group Co., Ltd. | LED lamp strip structure and control method thereof, backlight module, liquid crystal display device |
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