CN101656251B - Method for lowering light attenuation of light emitting diode - Google Patents
Method for lowering light attenuation of light emitting diode Download PDFInfo
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- CN101656251B CN101656251B CN200910065351XA CN200910065351A CN101656251B CN 101656251 B CN101656251 B CN 101656251B CN 200910065351X A CN200910065351X A CN 200910065351XA CN 200910065351 A CN200910065351 A CN 200910065351A CN 101656251 B CN101656251 B CN 101656251B
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Abstract
The invention discloses a method for lowering the light attenuation of a light emitting diode. An electronic device (1) which sends out an alternation signal is adopted and acts on a light emitting device (2) which receives the alternation signal, two symmetrical and independent single-lightwave light emitting bodies (3) which are at least in one group are arranged on the light emitting device (2), and at least one light emitting wafer (4) is arranged in the single-lightwave light emitting bodies (3) of the light emitting device (2). The two symmetrical and independent single-lightwave light emitting bodies (3) on the light emitting device (2) emit light alternately by the alternation signal conveyed by the electronic device (1), heat generated by each independent single-lightwave light emitting body (3) is alternately raised along with light emission and is lowered along with extinguishment, heat generated on the light emitting wafer (4) is reduced, light attenuation generated because of heating is prevented, and the working time of the light emitting diode is prolonged. The invention can lower the heat of the light emitting diode, reduce the light attenuation of the LED tube because of heating and increase the service life of the LED tube. The invention is especially suitable for a signal lamp of a marine traffic lighthouse.
Description
Technical field
The present invention relates to the led technology field, relate in particular to a kind of method that reduces light attenuation of light emitting diode.
Background technology
At present, for general lighting, people more need the light source of LED.Developed first kind of visible light LED from 1962, succeed in developing to the LED of white light in 1998.Existing LED kind is a lot, presses the glow color branch, can be divided into red, yellow, blue, green, blue or green, orange, purple, white light and infrared, ultraviolet light etc.By the encapsulating structure branch of LED have that loopful oxygen is sealed, structure such as metab epoxy packages, ceramic base epoxy packages and glass packaging.
Initial LED used in traffic lights and large tracts of land display screen as the indication light source of instrument and meter afterwards, welcome by everybody, and it saves the energy, brightness is high, has produced good economic benefits and social benefit.With 12 inches red traffic lights is example, adopt long-lived, low light efficiency 140 watts
In vain Vehement lampAs light source, it produces the white light of 2000 lumens.Behind Red lightscreening plate, light loss 90%, the ruddiness of only remaining 200 lumens.And in newly-designed lamp, adopt 18 red LED light sources, and comprising circuit loss, power consumption is 14 watts altogether, can produce same light efficiency.And control easily, low-voltage direct drive, combination back color representation is abundant, the advantage of long service life, are widely used in each engineering of city, large screen display system.LED is a kind of semiconductor that electric energy is converted into visible light.
When increasing brightness, just need to increase luminescence chip, operating current also can increase, and some electric current can change into heat, and the heat in the luminous tube pedestal increases, and causes the LED pipe to be heated and produces light decay, and light decay is initial 50% promptly to think and reach the life-span.How improving tube core and encapsulation internal structure, strengthen the inner probability that produces the photon outgoing of LED, improve light efficiency, solve heat radiation, increase the useful life of LED pipe, improve optical property, has been the main flow direction of industrial circle research and development.
Summary of the invention
In order to overcome deficiency of the prior art, solve the LED pipe and produce light decay because of being heated, reduce the LED pipe problem in useful life, the present invention provides a kind of method that reduces light attenuation of light emitting diode.Can reduce the heat of light-emitting diode, reduce the light decay that the LED pipe produces because of being heated, increase the useful life of LED pipe.
For realizing foregoing invention, the present invention adopts the technical scheme that is described below:
Described a kind of method that reduces light attenuation of light emitting diode; Comprise: adopt the electronic installation that sends alternating signal; Act on the light-emitting device that receives alternating signal; Described light-emitting device is provided with two symmetrical and independent monochromatic light ripple luminous elements that are at least a group, is provided with the luminescent wafer that is at least in the described monochromatic light ripple luminous element; The alternating signal that described electronic installation is carried makes two symmetrical and independent monochromatic light ripple luminous elements on the light-emitting device alternately luminous; Make each independently rising of replacing of the heat that produces of monochromatic light ripple luminous element with luminous; With going out and fall; Reduce the heat that produces on the luminescent wafer, prevent the light decay that produces because of being heated, the operating time of prolongation light-emitting diode.
Described a kind of method that reduces light attenuation of light emitting diode; Light-emitting device is that direct insertion LED employing matrix is a luminous pedestal; Luminous pedestal is provided with two independently reflection chambers, is provided with the luminescent wafer that is at least in each reflection chamber, and each luminescent wafer is the type of attachment of parallel connection in the reflection chamber; The electrode of one end parallel connection connects cooling stand; The electrode of other end parallel connection connects cooling stand through reflection chamber, constitutes two negative electrodes, two positive electrodes, two independently the luminescent wafer in the monochromatic light ripple luminous element encapsulate through light conductor.
Described a kind of method that reduces light attenuation of light emitting diode; Light-emitting device is a paster LED; Adopting matrix is a substrate, and substrate is provided with a reflection chamber, is provided with two independently monochromatic light ripple luminous elements in the reflection chamber; Be provided with the luminescent wafer that is at least in each monochromatic light ripple luminous element, the electrode of the luminescent wafer in the monochromatic light ripple luminous element is connected to parallel connection; Luminescent wafer is located on the substrate on the SMD negative electrode cooling stand, and the luminescent wafer anode is electrically connected positive electrode cooling stand on the substrate, and substrate surface constitutes two negative electrodes, two positive electrodes, two independently monochromatic light ripple luminous element through the light conductor encapsulation.
Described a kind of method that reduces light attenuation of light emitting diode; Light-emitting device is the integrated form paster LED, and adopting matrix is a PCB substrate, and the PCB substrate is cellular; Each pothole is provided with a reflection chamber; Be provided with two independently monochromatic light ripple luminous elements in the reflection chamber, be provided with the luminescent wafer that is at least in each monochromatic light ripple luminous element, the electrode of the luminescent wafer in the luminous element is connected to parallel connection; Luminescent wafer is located on the negative electrode heat radiating metal paper tinsel that the PCB substrate processes; On the anode heat radiating metal paper tinsel that luminescent wafer positive electrode electrical connection PCB substrate is processed; The PCB substrate surface constitutes two negative electrodes, two positive electrodes; Two independently monochromatic light ripple luminous element constitute by light conductor encapsulation, the PCB substrate is the core band heat-dissipating metal sheet.
Described a kind of method that reduces light attenuation of light emitting diode, reflection chamber is the metal film chamber of basin shape, has round basin shape, oval basin.
Described a kind of method that reduces light attenuation of light emitting diode, light conductor constitutes leaded light post or leaded light ball by transparent epoxy resin, and the leaded light post shapes is the cylinder bodily form, the long column bodily form, the convex cylindrical bodily form, the semicolumn bodily form or elliptic arc cylinder shape; The half-value angle of leaded light post is 5 °～20 °, can make the localized lighting light source and use; Half-value angle is 20 °～45 °, makes indicator light and uses; Half-value angle is 45 °～90 ° or bigger, makes the bigger indicator light in visual angle and uses.
Described a kind of method that reduces light attenuation of light emitting diode; The combination connecting mode of four link electrodes of two negative electrodes of two separate single light wave luminous elements, two positive electrodes in the light-emitting device; Have and adopt the anode of a separate single light wave luminous element to be connected with the cathodic electricity of another separate single light wave luminous element; Constitute two negative and positive link electrodes of light-emitting device, or constitute three link electrodes of light-emitting device; Adopt the homopolarity of two separate single light wave luminous elements to be connected, constitute three link electrodes of negative electrode light-emitting device altogether, or constitute three link electrodes of positive electrode light-emitting device altogether.
Described a kind of method that reduces light attenuation of light emitting diode, electronic installation is the square-wave signal of a branch of high and low level that replaces of output; Electronic installation also can be a branch of positive and negative square-wave signal that replaces of output, and positive and negative square-wave signal amplitude equates; Electronic installation also can be a pair of forward square-wave signal that replaces of output, and the square-wave signal amplitude equates; Electronic installation also can be a pair of negative sense square-wave signal that replaces of output, and the square-wave signal amplitude equates.
Described a kind of method that reduces light attenuation of light emitting diode, substrate also can be combined to constitute with aluminium sheet or copper coin by pcb board, and it is the heat radiating metal paper tinsel that described substrate also can be one side, and another side is the silicon plate, and internal layer is the heat conductive insulating plate.
Described a kind of method that reduces light attenuation of light emitting diode, the silicon plate can be arranged in the surface of integrated form paster LED substrate, is used for antistatic, makes the electronic installation that sends alternating signal.
Because adopt technique scheme, the present invention has following superiority:
A kind of method that reduces light attenuation of light emitting diode is to adopt independently two monochromatic light ripple light-emitting diodes formations, and is luminous through what replace, reduces the heat of light-emitting diode, reduces the light decay that the LED pipe produces because of being heated, and increases the useful life that LED manages.More common LED pipe can better replace traditional light source, and it has purposes widely.Its superiority: have use low-tension supply, volume is little, power consumption is low, several 100,000 hours of useful life, applicability is strong, stability is high, the response time is short, multicolor luminous etc. advantage; The high and low heat of brightness, environmental protection, sturdy and durable, its life-span, more similar LED pipe prolonged one times.The present invention is specially adapted to the signal lamp of shipping beacon.
Description of drawings
Fig. 1 is for reducing the block diagram of light attenuation of light emitting diode;
Fig. 1 a is the block diagram that one road folk prescription ripple reduces light attenuation of light emitting diode;
Fig. 1 b one the tunnel replaces the block diagram that positive and negative folk prescription ripple reduces light attenuation of light emitting diode;
Fig. 1 c is that two-way replaces the block diagram that the original square wave reduces light attenuation of light emitting diode;
Fig. 1 d is the block diagram that the alternately negative folk prescription ripple of two-way reduces light attenuation of light emitting diode;
Fig. 2 is the two light-emitting diode structure sketch mapes of oval monochromatic light ripple;
Fig. 3 is the two light-emitting diode structure sketch mapes of rectangle monochromatic light ripple;
Fig. 4 is the three-stage structure sketch map of the two light-emitting diodes of paster transmission-type monochromatic light ripple;
Fig. 5 is the three-stage structure sketch map of the two light-emitting diodes of paster transmission-type monochromatic light ripple;
Fig. 6 is the quaternary structure sketch map of the two light-emitting diodes of the reflective monochromatic light ripple of paster;
Fig. 7 is the two light-emitting diode structure sketch mapes of the integrated paster monochromatic light of pothole formula ripple;
Fig. 8 is the two light-emitting diode structure sketch mapes of flat integrated paster monochromatic light ripple;
Fig. 9 is the structural representation of light conductor;
Figure 10 is the structural representation of the two luminescent wafers of a flat monochromatic light ripple;
Figure 11 is the schematic cross-section of the two light-emitting diodes of flat integrated paster monochromatic light ripple;
Figure 12 is the schematic cross-section of the two light-emitting diodes of the integrated paster monochromatic light of pothole formula ripple;
Figure 13 is the circuit theory diagrams of a branch of square-wave signal of output;
Figure 14 is a branch of positive and negative square-wave signal circuit theory diagrams that replace of output;
Figure 15 is a pair of forward square-wave signal circuit theory diagrams that replace of output;
Figure 16 is a pair of negative sense square-wave signal circuit theory diagrams that replace of output;
Among the figure: the 1-electronic installation; The 2-light-emitting device; 3-monochromatic light ripple luminous element; The 4-luminescent wafer; The luminous pedestal of 5-; The 6-reflection chamber; The 7-electrode; The 8-cooling stand; The 9-light conductor; The 10-substrate; 10.1-heat radiating metal paper tinsel; 10.2-silicon plate; 10.3-heat conductive insulating plate; The 11-PCB substrate; The 12-pothole; The 13-conducting resinl.
Embodiment
Execution mode one
Like Fig. 1,1a, 2,3,9, shown in 13: a kind of method that reduces light attenuation of light emitting diode; The electronic installation 1 that alternating signal is sent in employing acts on the light-emitting device 2 that receives alternating signal; Described light-emitting device 2 is provided with two symmetrical and independent monochromatic light ripple luminous elements 3 that are at least a group, is provided with the luminescent wafer 4 that is at least in the described monochromatic light ripple luminous element 3; That is to say that the alternating signal that electronic installation 1 is carried makes two symmetrical and independent monochromatic light ripple luminous elements 3 on the light-emitting device 2 alternately luminous; Make each independently the heat that produces of monochromatic light ripple luminous element 3 when luminous, raise; When not luminous and reduce, thereby reduce and continue the heat that produces on the monochromatic light ripple luminous element, reduce the heat that produces on the luminescent wafer 4; Prevent the light decay that produces because of being heated, prolong the operating time of light-emitting diode.
During use; The electronic installation that the present invention adopts is exported a branch of square-wave signal, and like Fig. 1 a, shown in 13: this square-wave signal produces high and low level signal alternately, and acts on the light-emitting device that receives alternating signal; It is a luminous pedestal 5 that described light-emitting device 2 adopts direct insertion LED to adopt matrix; Luminous pedestal is provided with two independently reflection chambers 6, and described reflection chamber 6 is the metal film chamber of basin shape, has round basin shape, oval basin.Be provided with the luminescent wafer 4 that is at least in each reflection chamber 6; Each luminescent wafer 4 is the type of attachment of parallel connection in the reflection chamber; The electrode 7 of one end parallel connection connects cooling stand 8; The electrode 7 of other end parallel connection connects cooling stands 8 through reflection chamber 6, constitutes two negative electrodes, two positive electrodes, two independently the luminescent wafer 4 in the monochromatic light ripple luminous element encapsulate through light conductor 9.Described light conductor 9 constitutes leaded light post or leaded light ball by transparent epoxy resin, and the leaded light post shapes is the cylinder bodily form, the long column bodily form, the convex cylindrical bodily form, the semicolumn bodily form or elliptic arc cylinder shape; The half-value angle of leaded light post is 5 °～20 °, can make the localized lighting light source and use; Half-value angle is 20 °～45 °, makes indicator light and uses; Half-value angle is 45 °～90 ° or bigger, makes the bigger indicator light in visual angle and uses.
Electronic installation adopts the square-wave signal that chip NE555 produces in Figure 13, and by resistance R 1, R2, capacitor C and chip NE555 constitute; The combinations of polarities connected mode of light-emitting device 2; Adopt the anode 3 of a separate single light wave luminous element to be connected with 3 negative electrodes of another separate single light wave luminous element; Three link electrodes that constitute light-emitting device are respectively that an anode connects positive source; A minus earth, an anode and cathode is electrically connected 3 pin of chip NE555.When square-wave signal was high level, the monochromatic light ripple luminous element D2 in the light-emitting device 2 was bright; When square-wave signal was low level, the monochromatic light ripple luminous element D1 in the light-emitting device 2 was bright.
During work; 3 pin through make chip NE555 to the capacitor C charge and discharge produce square-wave signal: when capacitor C is filled for high potential; 6 pin of chip NE555 trigger, and make the 3 pin output low levels of chip NE555, and the monochromatic light ripple light-emitting diode D1 energising in the light-emitting device 2 is bright; When electronegative potential was reduced in the capacitor C discharge, 2 pin of chip NE555 triggered, and made the 3 pin output high level of chip NE555, and the monochromatic light ripple light-emitting diode D2 energising in the light-emitting device 2 is bright.At this moment, two separate single light wave luminous elements can be alternately luminous in the light-emitting device.
Above-mentioned direct insertion LED light-emitting device also can be connected the homopolarity of two luminous 3 bodies of monochromatic light ripple, can constitute light-emitting device three link electrodes of negative electrode altogether, or constitutes light-emitting device three link electrodes of light-emitting device of positive electrode altogether.
Execution mode two
Like Fig. 1 b, 4,5,6,9, shown in 14: a kind of method that reduces light attenuation of light emitting diode, adopt and send a branch of positive and negative voltage square wave signal electronic installation that replaces, act on the light-emitting device 2 that receives alternating signal.Described light-emitting device 2 is a paster LED; Adopting matrix is a substrate 10; Substrate is provided with a reflection chamber 6; Be provided with two independently monochromatic light ripple luminous elements 3 in the reflection chamber, be provided with the luminescent wafer 4 that is at least in each monochromatic light ripple luminous element 3, the electrode of the luminescent wafer 4 in the monochromatic light ripple luminous element is connected to parallel connection; Luminescent wafer 4 is located on the substrate 10 on the SMD negative electrode cooling stand 8, and luminescent wafer 4 anodes are electrically connected positive electrode cooling stand 8 on the substrate, and substrate surface constitutes two negative electrodes, two positive electrodes, two independently monochromatic light ripple luminous element 3 through light conductor 9 encapsulation.
Electronic installation adopts the positive and negative square-wave signal that chip NE555 produces in Figure 14, and by resistance R 1, R2, capacitor C and chip NE555 constitute; Two negative electrodes in the said light-emitting device 2, the combination connecting mode of two positive electrodes; Adopt the anode of a separate single light wave luminous element to be connected, constitute two link electrodes---the anode and cathode of light-emitting device with the cathodic electricity of another separate single light wave luminous element 3.An anodic-cathodic of light-emitting device 2 connects 3 pin of chip NE555, and another anodic-cathodic series resistance R4 connects the collector electrode of triode T1 and T2.
During work; Through make the 3 pin output square-wave signal of chip NE555 to the capacitor C charge and discharge: when capacitor C was filled for high potential, 6 pin of chip NE555 triggered, and made the 3 pin output low levels of chip NE555; The base stage of positive-negative-positive triode T1 connects 3 pin of NE555 through resistance R 3; Be low level this moment, the T1 conducting, and a monochromatic light ripple light-emitting diode D2 in the light-emitting device 2 lights; Simultaneously, the base stage of NPN type triode T2 connects 3 pin of NE555 through resistance R 5, and be low level this moment, and T2 ends, and D1 goes out.When electronegative potential was reduced in the capacitor C discharge, 2 pin of chip NE555 triggered, and made the 3 pin output high level of chip NE555; The base stage of NPN type triode T2 connects 3 pin of NE555 through resistance R 5; Be high level this moment, the T2 conducting, and another monochromatic light ripple light-emitting diode D1 in the light-emitting device 2 lights; Simultaneously, the base stage of positive-negative-positive triode T1 connects 3 pin of NE555 through resistance R 3, and be high level this moment, and T1 ends, and D2 goes out.Like this, light-emitting device 2 interior two separate single light wave luminous elements can be alternately luminous.
The paster LED of two separate single light wave luminous elements of above-mentioned light-emitting device 2 also can be connected homopolarity, constitutes negative electrode or three link electrodes of positive electrode altogether altogether.
Execution mode three
Like Fig. 1 c, 7,8,9, shown in 15: a kind of method that reduces light attenuation of light emitting diode, adopt a pair of forward square-wave signal that replaces of output, the electronic installation that the square-wave signal amplitude equates acts on the light-emitting device 2 that receives alternating signal.The light-emitting device 2 of described reception alternating signal is the integrated form paster LED; Adopting matrix is a PCB substrate 11; The PCB substrate is cellular, and each pothole 12 is provided with a reflection chamber 6, is provided with two independently monochromatic light ripple luminous elements 3 in the reflection chamber 6; Be provided with the luminescent wafer 4 that is at least in each monochromatic light ripple luminous element 3, the electrode of the luminescent wafer 4 in the luminous element is connected to parallel connection; Luminescent wafer 4 is located on the negative electrode heat radiating metal paper tinsel that the PCB substrate processes; On the anode heat radiating metal paper tinsel that luminescent wafer positive electrode 7 electrical connection PCB substrates are processed; The PCB substrate surface constitutes two negative electrodes, two positive electrodes; Two independently monochromatic light ripple luminous element 3 constitute by light conductor 9 encapsulation, PCB substrate 11 is the core band heat-dissipating metal sheet, metallic plate is aluminium sheet or copper coin.
Each pothole 12 on the integrated form paster LED is provided with four electrodes of two separate single light wave luminous elements, adopts the homopolarity of two separate single light wave luminous elements to be connected, and constitutes negative electrode or three link electrodes of light-emitting device of positive electrode altogether altogether.
The forward square-wave signal that a pair of two-way that electronic installation adopts chip NE555 to produce in Figure 15 replaces, by resistance R 1, R2, capacitor C and chip NE555 constitute; Two negative electrodes in the said light-emitting device 2, the combination connecting mode of two positive electrodes; Adopt the negative electrode of a separate single light wave luminous element to be connected with the cathodic electricity of another separate single light wave luminous element 3; Constitute three link electrodes of light-emitting device, promptly two one of positive electrodes are total to negative electrode.One of light-emitting device 2 is total to negative electrode series resistance R5 ground connection, and two positive electrodes are connected positive source through triode T1 with T2 respectively.
During work; Through make the 3 pin output square-wave signal of chip NE555 to the capacitor C charge and discharge: when capacitor C was filled for high potential, 6 pin of chip NE555 triggered, and made the 3 pin output low levels of chip NE555; The base stage of positive-negative-positive triode T2 connects 3 pin of NE555 through resistance R 4; Be low level this moment, the T2 conducting, and a monochromatic light ripple light-emitting diode D2 in the light-emitting device 2 lights; Simultaneously, the base stage of NPN type triode T1 connects 3 pin of NE555 through resistance R 3, and be low level this moment, and T1 ends, and D1 goes out.When electronegative potential was reduced in the capacitor C discharge, 2 pin of chip NE555 triggered, and made the 3 pin output high level of chip NE555; The base stage of NPN type triode T1 connects 3 pin of NE555 through resistance R 3; Be high level this moment, the T1 conducting, and another monochromatic light ripple light-emitting diode D1 in the light-emitting device 2 lights; Simultaneously, the base stage of positive-negative-positive triode T2 connects 3 pin of NE555 through resistance R 4, and be high level this moment, and T2 ends, and D2 goes out.Like this, light-emitting device 2 interior two separate single light wave luminous elements of every group of integrated form paster LED can be alternately luminous.
The paster LED of two separate single light wave luminous elements of above-mentioned light-emitting device 2 also can constitute three link electrodes of common positive electrode, also can constitute two anodic-cathodics.
Execution mode four
Like Fig. 1 d, 9,10,11,12, shown in 16: a kind of method that reduces light attenuation of light emitting diode; Adopt the electronic installation of a pair of negative sense square-wave signal that replaces of output, the square-wave signal amplitude equates, acts on the light-emitting device 2 that receives alternating signal and is antistatic integrated form paster LED; Described substrate 10 is combined to constitute with aluminium sheet or copper coin by pcb board; It is heat radiating metal paper tinsel 10.1 that described substrate 10 also can be one side, and another side is a silicon plate 10.2, and internal layer is a heat conductive insulating plate 10.3.The common positive electrode of metal forming is provided with two symmetrical and independent monochromatic light ripple luminous elements that the utmost point is at least a group, is provided with the luminescent wafer that is at least in each monochromatic light ripple luminous element, and the luminescent wafer in the luminous element is parallel connection, and is fixing through conducting resinl 13; All separate single light wave luminous elements also can be accomplished by the light conductor encapsulation.
Electronic installation adopts the square-wave signal that chip NE555 produces in Figure 16, and by resistance R 1, R2, capacitor C and chip NE555 constitute; Two negative electrodes in the said light-emitting device 2, the combination connecting mode of two positive electrodes; Adopt the anode of a separate single light wave luminous element to be electrically connected with the anode of another separate single light wave luminous element 3; Constitute three link electrodes of light-emitting device, i.e. positive electrode of two negative electrodes.A positive series resistance R3 of light-emitting device 2 connects positive source, and two negative electrodes are respectively through triode T1 and T2 ground connection.
During work; Through make the 3 pin output square-wave signal of chip NE555 to the capacitor C charge and discharge: when capacitor C was filled for high potential, 6 pin of chip NE555 triggered, and made the 3 pin output low levels of chip NE555; The base stage of positive-negative-positive triode T2 connects 3 pin of NE555 through resistance R 5; Be low level this moment, the T2 conducting, and a monochromatic light ripple light-emitting diode D2 in the light-emitting device 2 lights; Simultaneously, the base stage of NPN type triode T1 connects 3 pin of NE555 through resistance R 4, and be low level this moment, and T1 ends, and D1 goes out.When electronegative potential was reduced in the capacitor C discharge, 2 pin of chip NE555 triggered, and made the 3 pin output high level of chip NE555; The base stage of NPN type triode T1 connects 3 pin of NE555 through resistance R 4; Be high level this moment, the T1 conducting, and another monochromatic light ripple light-emitting diode D1 in the light-emitting device 2 lights; Simultaneously, the base stage of positive-negative-positive triode T2 connects 3 pin of NE555 through resistance R 5, and be high level this moment, and T2 ends, and D2 goes out.Like this, light-emitting device 2 interior two separate single light wave luminous elements can be alternately luminous.
Electronic installation of the present invention and integrated form paster LED can constitute one, and the silicon plate 10.2 of the substrate surface other end can be used for processing the electronic installation 1 that sends alternating signal.
The paster LED of two separate single light wave luminous elements also can constitute three link electrodes of common negative electrode on the metal forming of above-mentioned light-emitting device 2, also can constitute two anodic-cathodics.
Claims (5)
1. method that reduces light attenuation of light emitting diode; It is characterized in that: adopt the electronic installation (1) that sends alternating signal; Act on the light-emitting device (2) that receives alternating signal; Described light-emitting device (2) is provided with two the symmetrical and independent monochromatic light ripple luminous elements (3) that are at least a group, is provided with the luminescent wafer (4) that is at least in the described monochromatic light ripple luminous element (3); The alternating signal that described electronic installation (1) is carried makes two the symmetrical and independent monochromatic light ripple luminous elements (3) on the light-emitting device (2) alternately luminous; Make each independently rising of replacing of the heat that produces of monochromatic light ripple luminous element (3) with luminous; With going out and fall; Reduce luminescent wafer (4) and go up the heat that produces, prevent the light decay that produces because of being heated, the operating time of prolongation light-emitting diode;
Wherein, The combination connecting mode of two negative electrodes of interior two the separate single light wave luminous elements of light-emitting device (2), four link electrodes of two positive electrodes; Have and adopt the anode of a separate single light wave luminous element (3) to be connected, constitute three link electrodes of light-emitting device with the cathodic electricity of another separate single light wave luminous element (3); Or adopt the homopolarity of two separate single light wave luminous elements (3) to be connected, constitute three link electrodes of negative electrode light-emitting device altogether; Said light-emitting device is: direct insertion LED, paster LED or integrated form paster LED;
It is a luminous pedestal (5) that said direct insertion LED adopts matrix; Luminous pedestal is provided with two independently reflection chambers (6); Be provided with the luminescent wafer (4) that is at least in each reflection chamber (6); Each luminescent wafer (4) is the type of attachment of parallel connection in the reflection chamber, and the electrode (7) of end parallel connection connects cooling stand (8), and the electrode (7) of other end parallel connection connects cooling stand (8) through reflection chamber (6); Constitute two negative electrodes, two positive electrodes, two independently the luminescent wafer (4) in the monochromatic light ripple luminous element through light conductor (9) encapsulation;
It is a substrate (10) that said paster LED adopts matrix; Substrate is provided with a reflection chamber (6); Be provided with two independently monochromatic light ripple luminous elements (3) in the reflection chamber; Be provided with the luminescent wafer (4) that is at least in each monochromatic light ripple luminous element (3), the electrode of the luminescent wafer (4) in the monochromatic light ripple luminous element is connected to parallel connection; Luminescent wafer (4) is located at substrate (10) and goes up on the SMD negative electrode cooling stand (8), luminescent wafer
(4) anode is electrically connected positive electrode cooling stand (8) on the substrate, and substrate surface constitutes two negative electrodes, two positive electrodes, two independently monochromatic light ripple luminous element (3) through light conductor (9) encapsulation;
It is a PCB substrate (11) that said integrated form paster LED adopts matrix; The PCB substrate is cellular; Each pothole (12) is provided with a reflection chamber (6); Be provided with two independently monochromatic light ripple luminous elements (3) in the reflection chamber (6), be provided with the luminescent wafer (4) that is at least in each monochromatic light ripple luminous element (3), the electrode of the luminescent wafer (4) in the luminous element is connected to parallel connection; Luminescent wafer (4) is located on the negative electrode heat radiating metal paper tinsel that the PCB substrate processes; On the anode heat radiating metal paper tinsel that luminescent wafer positive electrode (7) electrical connection PCB substrate is processed; The PCB substrate surface constitutes two negative electrodes, two positive electrodes; Two independently monochromatic light ripple luminous element (3) is by light conductor (9) encapsulation formation, and PCB substrate (11) is the core band heat-dissipating metal sheet;
Wherein, electronic installation (1) or be a branch of positive and negative square-wave signal that replaces of output, positive and negative square-wave signal amplitude equates; Electronic installation (1) or be a pair of forward square-wave signal that replaces of output, the square-wave signal amplitude equates; Electronic installation (1) or be a pair of negative sense square-wave signal that replaces of output, the square-wave signal amplitude equates.
2. a kind of method that reduces light attenuation of light emitting diode as claimed in claim 1 is characterized in that: reflection chamber (6) is the metal film chamber of basin shape, has round basin shape, oval basin.
3. a kind of method that reduces light attenuation of light emitting diode as claimed in claim 1 is characterized in that: light conductor (9) constitutes leaded light post or leaded light ball by transparent epoxy resin, and the leaded light post shapes is the cylinder bodily form, the long column bodily form or elliptic arc cylinder shape; The half-value angle of leaded light post is 5 °～20 °, makes the localized lighting light source and uses; Half-value angle is 20 °～45 °, makes indicator light and uses; Half-value angle is 45 °～90 ° or bigger, makes the bigger indicator light in visual angle and uses.
4. a kind of method that reduces light attenuation of light emitting diode as claimed in claim 1; It is characterized in that: described substrate (10) is combined to constitute with aluminium sheet or copper coin by pcb board; Or substrate (10) is heat radiating metal paper tinsel (10.1) for one side; Another side is silicon plate (10.2), and internal layer is heat conductive insulating plate (10.3).
5. like claim 1 or 4 described a kind of methods that reduce light attenuation of light emitting diode, it is characterized in that: the silicon plate (10.2) of substrate surface can be made into the electronic installation (1) that is used to send alternating signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910065351XA CN101656251B (en) | 2009-06-22 | 2009-06-22 | Method for lowering light attenuation of light emitting diode |
Applications Claiming Priority (1)
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| CN200910065351XA CN101656251B (en) | 2009-06-22 | 2009-06-22 | Method for lowering light attenuation of light emitting diode |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2682587Y (en) * | 2002-12-10 | 2005-03-02 | 唐台宁 | Composite colored light type LED |
| CN1866532A (en) * | 2005-05-20 | 2006-11-22 | 财团法人工业技术研究院 | AC light emitting apparatus and manufacturing method thereof |
| CN1913180A (en) * | 2005-08-11 | 2007-02-14 | 璨圆光电股份有限公司 | LEd component and its driving method |
| CN101000130A (en) * | 2007-01-10 | 2007-07-18 | 诸建平 | High power LED combined cup lamp |
| CN201117656Y (en) * | 2007-08-24 | 2008-09-17 | 楼满娥 | Luminous diode packaging structure |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2682587Y (en) * | 2002-12-10 | 2005-03-02 | 唐台宁 | Composite colored light type LED |
| CN1866532A (en) * | 2005-05-20 | 2006-11-22 | 财团法人工业技术研究院 | AC light emitting apparatus and manufacturing method thereof |
| CN1913180A (en) * | 2005-08-11 | 2007-02-14 | 璨圆光电股份有限公司 | LEd component and its driving method |
| CN101000130A (en) * | 2007-01-10 | 2007-07-18 | 诸建平 | High power LED combined cup lamp |
| CN201117656Y (en) * | 2007-08-24 | 2008-09-17 | 楼满娥 | Luminous diode packaging structure |
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