CN102374496A - Multidimensional lighting device - Google Patents
Multidimensional lighting device Download PDFInfo
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- CN102374496A CN102374496A CN2011100555891A CN201110055589A CN102374496A CN 102374496 A CN102374496 A CN 102374496A CN 2011100555891 A CN2011100555891 A CN 2011100555891A CN 201110055589 A CN201110055589 A CN 201110055589A CN 102374496 A CN102374496 A CN 102374496A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
- H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
- H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/58—Optical field-shaping elements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48135—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip
- H01L2224/48137—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip the bodies being arranged next to each other, e.g. on a common substrate
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a multidimensional lighting device electrically connected to a standardized power supply system. The lighting device comprises a carrier, a blue light emitting diode matrix and one or a plurality of fluorescence layers. The blue light emitting diode matrix is arranged on the carrier and comprises a plurality of blue light emitting diode cores electrically connected in a multidimensional way. The multidimensional lighting device can be divided into one central region and a plurality of peripheral regions, wherein the peripheral regions surround the central region, the central region and the peripheral regions are in one-dimensional or multidimensional spacial distribution, and the fluorescence layers at least cover the central region. When the standardized power supply system supplies power, the central region and the peripheral regions of the multidimensional lighting device can respectively provide first rays and second rays so as to generate mixed rays.
Description
Technical field
The present invention relates to a kind of various dimensions light-emitting device, especially relate to the semiconductor illumination device that is applied under the standardization electric power system about a kind of.
Background technology
Along with technical development is maked rapid progress, the range of application of light emitting diode has spreaded all over display unit, traffic sign, lighting device, medical treatment device and various electronic product.
The mode of using light emitting diode to produce white light can have following several kinds of modes: one, mix blue light, ruddiness and green glow that blue, redness and green LED institute produce respectively with the generation white light.Two, utilize ultraviolet light-emitting diodes (UV LED) excitated fluorescent powder to produce white light.Three, utilize blue LED to excite yellow fluorescent powder, form white light through complementary colours.
But there is its problem points respectively in above-mentioned variety of way, and still expectation technology weeds out the old and bring forth the new on the market.
Summary of the invention
A purpose of the present invention is to provide a kind of various dimensions light-emitting device, is suitable for the standardization electric power system, and can meet demands such as low cost of manufacture, low power consumption and color rendering be good.
For reaching above-mentioned purpose, the present invention provides a kind of various dimensions light-emitting device, is electrically connected to a standardization electric power system, as: mains system, network system, telephone system etc.The various dimensions light-emitting device comprises a carrier, one first photoelectric cell and a plurality of second photoelectric cell.The outer surface of carrier can be divided into a first area and a plurality of second area, and second area is disposed near the first area; First photoelectric cell is arranged on the first area, and second photoelectric cell is arranged on the second area, and wherein the material of second photoelectric cell on each second area, structure, quantity, photochromic, colour temperature, intensity, luminous efficiency are not limited to identical.The standardization electric power system is electrically connected with first photoelectric cell and second photoelectric cell, in first photoelectric cell and a plurality of second photoelectric cell at least one of which produce one first light and one second light respectively and can be mixed into a mixed light.In one embodiment, first light, second light and mixed light are respectively blue light, ruddiness and (warming up) white light.In another embodiment, in first light or second light at least one of which be the mixed light that multiple coloured light mixes, for example, the mixed light that first light is formed by blue light and yellow light mix, and/or the mixed light that mixes by blue light and ruddiness of second light.In another embodiment, it two produces the second not homochromy light respectively at least in a plurality of second photoelectric cells, and for example, one second photoelectric cell produces ruddiness, and another second photoelectric cell produces green glow or gold-tinted.
In one embodiment, first photoelectric cell comprises a blue light-emitting diode array and one first wavelength conversion body, for example: fluorescence coating, semiconductor layer, dyestuff.The blue light-emitting diode array comprises a plurality of blue light-emitting diode tube cores, and forms the combination of series, parallel or above selection between the blue light-emitting diode tube core; First wavelength conversion body is covered on the blue light-emitting diode array.In addition, second photoelectric cell also can be the combination of red light-emitting diode tube core, red light-emitting diode array, blue light-emitting diode tube core and red wavelength conversion body or the combination of blue light-emitting diode array and red wavelength conversion body.
Another embodiment of the present invention more provides a kind of various dimensions light-emitting device, is electrically connected to a standardization electric power system.The various dimensions light-emitting device comprises a carrier, a blue light-emitting diode array, one first wavelength conversion body and a plurality of second wavelength conversion body.The blue light-emitting diode array is arranged on the carrier, and comprises a plurality of blue light-emitting diode tube cores, and these a little blue light-emitting diode tube cores are electrically connected to each other.The blue light-emitting diode array has a central area and is positioned at a plurality of neighboring areas outside the central area, and also has part area overlaid between neighboring area and central area and/or neighboring area and the neighboring area.First wavelength conversion body is covered on the part at least of central area, and each second wavelength conversion body then is covered in respectively on the part at least of single neighboring area, and each wavelength conversion body also possibly overlap each other.The configuration kenel of each zone or wavelength conversion body, position, area, thickness, concentration etc. can be carried out suitable adjustment for meeting required colour temperature, color, light type, luminous intensity, efficient or other design specifications.Standardization electric power system and blue light-emitting diode array are electrically connected and make in central area and a plurality of neighboring area of blue light-emitting diode array at least one of which to produce one first light and one second light respectively to be mixed into a mixed light; That is, each neighboring area can be simultaneously or timesharing light.
Description of drawings
Figure 1A is the schematic perspective view of first embodiment of the invention;
Figure 1B is the substrate regions distribution map of first embodiment of the invention;
Fig. 2 is another enforcement aspect schematic perspective view of first embodiment of the invention;
Fig. 3 is the schematic perspective view of second embodiment of the invention:
Fig. 4 is another enforcement aspect schematic perspective view of second embodiment of the invention;
Fig. 5 A is the schematic perspective view of third embodiment of the invention;
Fig. 5 B is the blue light-emitting diode array region distribution map of third embodiment of the invention;
Fig. 6 A is the schematic perspective view of fourth embodiment of the invention;
Fig. 6 B is the carrier regional distribution chart of fourth embodiment of the invention;
The cutaway view of Fig. 6 C illustration one embodiment of the invention;
The cutaway view of Fig. 6 D illustration one embodiment of the invention; And
The cutaway view of Fig. 6 E illustration one embodiment of the invention.
The main element symbol description
1: standardization electric power system 10: the various dimensions light-emitting device
10a: many lead 10b: electrode
12: carrier 12 a: first area
12b: 14: the first photoelectric cells of second area
14a: blue light-emitting diode array 14b: first wavelength conversion body
Photoelectric cell 18 in 16: the second: radiator structure
2: standardization electric power system 20: the various dimensions light-emitting device
22: 24: the first photoelectric cells of carrier
24a: blue light-emitting diode array 24b: first wavelength conversion body
26: the second photoelectric cell 26a: blue light-emitting diode array
26b: second wavelength conversion body 3: standardization electric power system
30: various dimensions light-emitting device 30a: lead
30b: electrode 32: carrier
34: the first photoelectric cell 34a: blue light-emitting diode array
34b: 36: the second photoelectric cells of first wavelength conversion body
4: standardization electric power system 40: the various dimensions light-emitting device
42: the first photoelectric cell 42a: blue light-emitting diode array
42b: 44: the second photoelectric cells of first wavelength conversion body
44a: blue light-emitting diode array 44b: green wavelength conversion body
50: various dimensions light-emitting device 52: carrier
54: blue light-emitting diode array 54a: central area
54b: 56: the first wavelength conversion body in neighboring area
Wavelength conversion body 6 in 58: the second: the standardization electric power system
60: various dimensions light-emitting device 60a: many leads
60b: electrode 62: carrier
62a: first area 62b: second area
64: the first photoelectric cell 64a: blue light-emitting diode array
64b: 66: the second photoelectric cells of first wavelength conversion body
68: radiator structure 69: shadow shield
70: groove structure 71: reflecting layer
72: light transmissive material 73: the cover body structure
74: heat insulation structural
The specific embodiment
Below will explain the various variations of various dimensions light-emitting device of the present invention through embodiment, about characteristic of the present invention and embodiment, conjunction with figs. explanation now as follows.Need the expositor, embodiments of the invention are not to need under described environment, application or mode like embodiment, can implement in order to restriction the present invention.And work as reference each other the conflict except that showing to have between each embodiment, combination in any is to form other embodiment of the present invention.
In addition, accompanying drawing is merely the sketch map of simplification, and the element that it showed, quantity, shape or other characteristics are not in order to limiting concrete embodiment, this close chat earlier bright.
At first, please be earlier with reference to Figure 1A, it is the schematic perspective view of the various dimensions light-emitting device 10 of first embodiment of the invention.Various dimensions light-emitting device 10 can be electrically connected to a standardization electric power system 1, like mains system, network system, telephone system, commercial power system.Various dimensions light-emitting device 10 comprises several wires 10a, two electrode 10b, a carrier 12, one first photoelectric cell 14, four second photoelectric cells 16 and four radiator structures 18.
Shown in Figure 1B; Carrier 12 can be divided into a first area 12a and four second area 12b; These four second area 12b are center and outwards around distribution with first area 12a, its various dimensions distribution kenel such as random distribution, minute surface symmetry, rotation symmetry, radiation symmetry etc.
First photoelectric cell 14 comprises a stacked blue light-emitting diode array 14a and one first wavelength conversion body 14b up and down; Blue light-emitting diode array 14a comprises several blue light-emitting diode tube cores (scheming not shown); These a little blue light-emitting diode tube cores distribute with a various dimensions form; As: the distribution of Z word, cross-distribution, the distribution of ㄇ font etc., and be that series, parallel or connection in series-parallel mix.The various dimensions form distributes and can make light emitting diode matrix 14a can bear operating voltage, the electric current greater than single tube core and can directly be connected with standardization electric power system 1 or second photoelectric cell 16 of arranging in pairs or groups is connected with standardization electric power system 1 more thus.Particularly; After one or more light emitting diode matrix 14a series connection more optionally behind other electronic components such as (that is can select to connect or do not connect) series, parallel or connection in series-parallel second photoelectric cell 16, resistance, electric capacity, inductance; Promptly can directly link to each other with standardization electric power system 1; For example; Standardization electric power system 1 can provide the voltage of X volt, and the voltage that light emitting diode matrix 14a can bear equals or near X/N (N belongs to any positive integer), is connected in series the voltage that N light emitting diode matrix 14a can directly bear the X volt.
Blue light-emitting diode array 14a is placed on the first area 12a of carrier 12 through suitably connecting material (scheming not shown).The first wavelength conversion body 14b covers and is arranged on the blue light-emitting diode array 14a, and preferably, the first wavelength conversion body 14b selects a kind of yellow wavelengths conversion body, for example yellow fluorescent powder, weld, yellow filter etc. for use.Yellow fluorescent powder such as YAG, TAG, Nitride phosphor, silicates fluorescent material etc.
In the present embodiment; In four second photoelectric cells 16 of Figure 1A at least one of which comprise a red light-emitting diode array (that is comprising several red light-emitting diode tube cores) or a red light-emitting diode tube core, and be placed on the second area 12b of carrier 12 with suitable connection material (scheming not shown).Preferably; Blue light-emitting diode array 14a and the red light-emitting diode array suitable distance of should being separated by is to avoid the red light-emitting diode array to absorb the light of blue light-emitting diode array 14a or to receive the warming-up effect of blue light-emitting diode array 14a and make the usefulness deterioration.This distance as greater than 0.5mm, 1mm, 2.0mm, 3.0mm, 4.0mm, 5.0mm, 1.0cm, 2.0cm, 3.0cm, 4.0cm or more than the 5.0cm.In addition, the operating voltage of red light-emitting diode array or tube core can less than, equal, approaching or greater than the operating voltage of blue light-emitting diode array 14a.
Standardization electric power system 1 can be passed through lead (scheming not shown) and be electrically connected with the electrode 10b of various dimensions light-emitting device 10 respectively.Shown in Figure 1A; Electrode 10b, first photoelectric cell 14 and second photoelectric cell 16 are electrically connected with many lead 10a, and standardization electric power system 1 makes first photoelectric cell 14 and each second photoelectric cell 16 produce one first light and one second light respectively to be mixed into a mixed light.This mixed light can be equivalent to the candle light of 1500K～2500K, the incandescent lamp of 2500K～3500K, the xenon lamp of 4500K～5000K, the flash lamp of 5500K～5600K.Wherein often be called warm white below the 3300K; 3300K～5300K often is called cold white light; Often be called cool colour light more than the 5300K.Can produce the mixed light of diversified colour temperature through the design principle of using various embodiments of the present invention.
Compare with blue light-emitting diode, the red light-emitting diode luminous efficiency is comparatively remarkable with the situation that the temperature rising decays.Therefore, as Figure 1A shown in Figure 1B, it is for reducing the temperature of red light-emitting diode array or tube core, according to the red light-emitting diode array or the tube core below of second photoelectric cell 16 of another embodiment of the present invention radiator structure 18 is set more.Radiator structure 18 is like combination of fin, fan, heat pipe, Control device of liquid cooling, high thermal conductivity coefficient material bulk, porous material or above-mentioned selection etc.
For making mixed light present photochromic and/or high color rendering uniformly, first photoelectric cell 14 and second photoelectric cell 16 can adapt to electrology characteristic (example: energy efficiency, power factor), optical characteristics (example: light field, luminous intensity, cold and hot coefficient (hot/cold factor)) and/or the geometry of each element and carry out appropriate configurations.On carrier 12, only the light-emitting area ratio of 16 of single first photoelectric cell 14 and single second photoelectric cells was not limited to this with 2: 1 to 5: 1 proportional arrangement for first photoelectric cell 14 of one embodiment of the invention and whole light-emitting areas of second photoelectric cell 16.Another embodiment of the present invention makes whole luminous power ratios of first photoelectric cell 14 and second photoelectric cell 16 between 2 to 5, and the luminous power ratio that single first photoelectric cell 14 of thought and single second photoelectric cell are 16 is not limited to this.In addition, if light, temperature, magnetic field, electric field that element sent possibly cause the deterioration in characteristics of another element, then interelement distance or configuration pattern are good especially reducing or eliminate this deterioration in characteristics.The material that this deterioration in characteristics such as high energy light are low energy rank absorbed, cold and hot coefficient is big is easy to luminous efficiency reduction under the temperature rise, the electronic combination of backing field obstruction electronics etc.For example, the adjacent elements of the various dimensions light-emitting device 10 of one embodiment of the invention makes the light field of element can (or few part is not only arranged) not overlapping at a distance of a distance or the angle that inclines towards each other, to demonstrate uniform photochromic distribution.
In one embodiment; First photoelectric cell 14 and second photoelectric cell 16 and standardization electric power system 1 electrically engage with series model; Make blue light-emitting diode array 14a and red light-emitting diode array or tube core can under high voltage and low current, operate (with respect to non-light emitting diode matrix); Reach low-loss energy transmission and conversion, simplify the circuit between standardization electric power system 1 and various dimensions light-emitting device simultaneously.Interelement of the present invention also can be adopted parallel connection or connection in series-parallel hybrid mode, exceeds so state bright aspect not.
In one embodiment; Can be the carrier of a monocrystal, a polycrystal or a non-crystal structure on the material selection of carrier 12, for example select in glass, sapphire, carborundum (SiC), phosphorus gallium (GaP), gallium arsenide phosphide (GaAsP), zinc selenide (ZnSe), zinc sulphide (ZnS), selenium sulfuration americium zinc (AmSSe) and the group that aluminium nitride constituted.
In addition; In first photoelectric cell 14; Can select for use among the blue light-emitting diode array 14a gallium nitride (gallium nitride, GaN) tube core of series send emission wavelength between 400nm～530nm (even between the blue light of 455nm～465nm), the preferable yellow fluorescent powder of selecting for use of the first wavelength conversion body 14b; The yttrium-aluminium-garnet (yttrium aluminum garnet, the YAG) fluorescent material that for example contain yttrium and aluminium.Implement also can adopt yellow fluorescent powder (like TAG, Nitride phosphor, silicates fluorescent material etc.), fluorescent plate, semi-conducting material or the dyestuff of other kinds in the aspect at other.In second photoelectric cell 16, the red light-emitting diode array can select for use the serial tube core of AlGaInP (AlInGaP) to send luminous wave band between 600nm～750nm (ruddiness of or 620nm～625nm).Radiator structure select for use copper (copper, Cu), aluminium (aluminum, Al), (silicon Si) waits the material of high thermal conductivity coefficient for ceramic material (ceramic material) or silicon.Above-mentioned cited material is merely an illustration, and the present invention is not as limit.Through the quantity of adjustment blue light-emitting diode array 14a or the ratio of luminous intensity, wavelength conversion body thickness or density of material and/or blue light and ruddiness, can form the coloured light of multiple colour temperature.
Please refer to Fig. 2, it is the various dimensions light-emitting device according to another embodiment of the present invention.Various dimensions light-emitting device 20 is electrically connected to a standardization electric power system 2.Various dimensions light-emitting device 20 comprises a carrier 22, one first photoelectric cell 24 and four second photoelectric cells 26.First photoelectric cell 24 comprises the blue light-emitting diode array 24a and the first wavelength conversion body 24b.Second photoelectric cell 26 comprises a blue light-emitting diode array 26a and one second wavelength conversion body 26b.The first wavelength conversion body 24b comprises at least a yellow wavelengths conversion body, and the second wavelength conversion body 26b comprises at least a red wavelength conversion body.
In addition, the first wavelength conversion body 24b and the second wavelength conversion body 26b can separately be arranged on the corresponding element, perhaps can be overlapped on the element in the present embodiment.Because first photoelectric cell 24 and second photoelectric cell 26 all adopt the blue light-emitting diode array; So do not have the doubt that light is absorbed by another element; Therefore between the blue light-emitting diode array of each photoelectric cell; Mutual distance can be approaching as much as possible, is used to reduce the usable floor area of packaging body.What need explanation is that this enforcement aspect and above stated specification components identical and associative operation mechanism are not given unnecessary details at this in addition.
Please refer to Fig. 3, it is the schematic perspective view according to the various dimensions light-emitting device 30 of one embodiment of the invention.
The various dimensions light-emitting device 30 of present embodiment is electrically connected to a standardization electric power system 3 equally.Various dimensions light-emitting device 30 comprises many lead 30a, two electrode 30b, a carrier 32, one first photoelectric cell 34 and four second photoelectric cells 36.Do not give unnecessary details in addition at this with the same or analogous element of previous embodiment.
In detail; First photoelectric cell 34 of present embodiment adopts blue light-emitting diode array 34a to excite the first wavelength conversion body 34b of tool red fluorescence powder; The green light LED array that second photoelectric cell 36 adopts by many green light LED tube cores is implemented also can only use single green light LED tube core in the aspect at other.
Standardization electric power system 3 is electrically connected with various dimensions light-emitting device 30, is used to provide standardization voltage and/or electric current.First photoelectric cell 34 and second photoelectric cell 36 produce one first light and one second light respectively, and first light and second light are mixed into a mixed light and project.Can comprise blue light, ruddiness in this mixed light, reach green glow.The suitable ratio of this three look of adjustment various coloured light of can arranging in pairs or groups out for example, can obtain bulb coloured light (warm white), cold white light or other and can utilize and mix the coloured light that three primary colors obtain.In addition, if great majority or whole blue lights consumed in producing ruddiness, then the ratio of blue light will approach 0 or less than 5% or less than 1 in the mixed light.
Please refer to Fig. 4, it is the sketch map according to the various dimensions light-emitting device 40 of another embodiment of the present invention, and various dimensions light-emitting device 40 is electrically connected to a standardization electric power system 4.In this enforcement; First photoelectric cell 42 adopts blue light-emitting diode array 42a to excite the first wavelength conversion body 42b of tool red fluorescence powder; Second photoelectric cell 44 adopts blue light-emitting diode array 44a; Excite the green wavelength conversion body 44b of top to form second light, be mixed into a mixed light with first light with first photoelectric cell 42.Under this kind configuration, suitably adjust blue light in the mixed light, ruddiness, and the green glow ratio can get the visible light of various variations.But,, then will almost discover in the mixed light less than blue light if blue light is exhausted in order to produce ruddiness and green glow fully or almost.
The first fluorescence coating 42b and the second fluorescence coating 44b can separately be arranged on the corresponding element, perhaps can be overlapped on the element in this enforcement.Because first photoelectric cell 42 and second photoelectric cell 44 all adopt the blue light-emitting diode array; Do not have the doubt that light is absorbed by another element; So between the blue light-emitting diode array of each photoelectric cell, mutual distance can be approaching as much as possible, with the area of the use of dwindling packaging body.What need explanation is that this enforcement aspect and above stated specification components identical and associative operation mechanism are not given unnecessary details at this in addition.
What need explanation in addition is; In the above-described embodiments; If first area and second area all adopt the blue light-emitting diode array; Because blue light-emitting diode is low to the light absorption of other long wavelength's scopes, the less spacing of hereat can being separated by between first area and second area is implemented aspect for for example above-mentioned two kinds.Yet; If if adopt the light emitting diode matrix of different color light between first area and second area; For example blue light and red light-emitting diode array; Or blue light and green light LED array because ruddiness and green light LED are high to the light absorption of other wave-length coverages, hereat then need adopt big spacing.What need explanation in addition is that the above-mentioned light emitting diode matrix that is applied to second area also can adopt single tube core.
Please refer to Fig. 5 A, it is the schematic perspective view according to the various dimensions light-emitting device 50 of further embodiment of this invention.Various dimensions light-emitting device 50 is electrically connected to a standardization electric power system (scheming not shown), and various dimensions light-emitting device 50 comprises a carrier 52, a blue light-emitting diode array 54, one first wavelength conversion body 56 and four second wavelength conversion body 58.
Blue light-emitting diode array 54 is arranged on the carrier 52, comprises a plurality of blue light-emitting diode tube cores (scheming not shown), and these a little blue light-emitting diode tube cores are that the various dimensions form that series, parallel or connection in series-parallel mix is electrically connected.Shown in Fig. 5 B, blue light-emitting diode array 54 has a central area 54a and four neighboring area 54b, and these a little neighboring area 54b are distributed in the periphery of central area 54a.Hereat shown in Fig. 5 A, first wavelength conversion body 56 is covered on the 54a of central area, and four second wavelength conversion body 58 are covered in respectively on four neighboring area 54b.
In the present embodiment, the material selection of carrier 52, blue light-emitting diode array 54, the first wavelength conversion body 52a and the second wavelength conversion body 54a and operation are implemented, and please not give unnecessary details in addition at this with reference to above stated specification.
Standardization electric power system and blue light-emitting diode array 54 are electrically connected in series; The standardization electric power system makes the central area 54a of blue light-emitting diode array 54 and neighboring area 54b produce one first light and one second light respectively, and first light and second light are mixed into a mixed light and project.
Shown in Fig. 6 A, it is the schematic perspective view according to the various dimensions light-emitting device 60 of an embodiment more of the present invention.Various dimensions light-emitting device 60 is electrically connected to a standardization electric power system 6, and various dimensions light-emitting device 60 comprises many lead 60a, two electrode 60b, a carrier 62, four first photoelectric cells 64, second photoelectric cell 66 and a radiator structure 68.Shown in Fig. 6 B, carrier 62 has four first area 62a and a second area 62b, and these a little first areas are distributed in the periphery of second area 62b.
With reference to figure 6A and Fig. 6 B; Each first photoelectric cell 64 all comprises a blue light-emitting diode array 64a (in the present embodiment; The blue light-emitting diode tube core also can be used for all blue light-emitting diode arrays of all or part of replacement) and one first wavelength conversion body 64b; Wherein blue light-emitting diode array 64a comprises a plurality of blue light-emitting diode tube cores (scheming not shown); These a little blue light-emitting diode tube cores connect with various dimensions mode (as: distribution of Z word, cross-distribution, the distribution of ㄇ font etc.) series, parallel or connection in series-parallel, are used to that light emitting diode matrix 64a can be born and are higher than the forward voltage and/or the operating current of a semiconductor light emitting epitaxial structure.Four blue light-emitting diode array 64a are arranged on four first area 62a of carrier 62 through immobilization material (scheming not shown).The first wavelength conversion body 64b covers and is arranged on the blue light-emitting diode array 64a.The emission light of the first wavelength conversion body 64b is as yellow, red or green.
Shown in Fig. 6 A, second photoelectric cell 66 of present embodiment comprises a red light-emitting diode array (also can adopt single red light-emitting diode tube core), is arranged on the second area 62b of carrier 62.Blue light-emitting diode array 64a and red light-emitting diode array have an appropriate intervals, are used to avoid the red light-emitting diode array to absorb the light source of blue light-emitting diode array 64a.In addition; If blue light-emitting diode array, red light-emitting diode array or its two be arranged among the groove structure of obstruction light transmission to each other or have bigger edge with enlarge with adjacent light emitting diode matrix between distance or have light-shielding structure to be arranged between the red blue light emitting diode matrix, for example shadow shield 69 also can be avoided the light of red light-emitting diode array absorption blue light-emitting diode array 64a.
The standardization electric power system can be passed through lead (scheming not shown) and be electrically connected with the electrode 60b of various dimensions light-emitting device 60 respectively.Shown in Fig. 6 A, electrode 60b, first photoelectric cell 64 and second photoelectric cell 66 are in series with many lead 60a, and first photoelectric cell 64 and second photoelectric cell 66 produce one first light and one second light respectively and be mixed into a mixed light.The preferably, the scope of the colour temperature of this mixed light is approximately between 2500K to 3800K; Better person can be the colour temperature person with 3000K, and perhaps this mixed light belongs to warm white (warm white).
Because the red light-emitting diode luminous efficiency is comparatively remarkable with the situation that the temperature rising decays.Therefore, shown in Fig. 6 A, for cooling red light-emitting diode array, solve luminous power Yin Wendu and raise and the problem points of decay, red light-emitting diode array below is provided with radiator structure 68, that is radiator structure is between second photoelectric cell 66 and carrier 62.Radiator structure 68 is like fin, fan, heat pipe, Control device of liquid cooling, high thermal conductivity coefficient material, porous material etc.In addition; Radiator structure 68 more can optionally make the position of second photoelectric cell 66 be higher than a blue light-emitting diode array 64a; So; When covering an optical lens on various dimensions light-emitting device 60 time, be positioned at second photoelectric cell 66 near the optical axial position of optical lens and can reach and be arranged at the better light extraction of various dimensions light-emitting device 60 peripheral position (like the embodiment of Figure 1A～Fig. 4).And among the first wavelength conversion body 64b if contain the particle (like fluorescent material, scattering particles etc.) that can cause scattering to light; Even first photoelectric cell 64 is arranged at the peripheral position of various dimensions light-emitting device 60, also can helps the light of first photoelectric cell 64 outwards to penetrate through these scattering particles.
For making mixed light present photochromic and/or color rendering uniformly, the preferable proportional arrangement (relevant drawings only in order to explain, does not hereat illustrate actual ratio) on carrier 62 with 2: 1 to 5: 1 of the light-emitting area of first photoelectric cell 64 and second photoelectric cell 66; Optionally, in one embodiment, the red light-emitting power ratio of the blue light emitting power of first photoelectric cell 64 and second photoelectric cell 66 is between 2 to 5.
In one embodiment; First photoelectric cell 64 and second photoelectric cell 66 electrically engage with series model with the standardization electric power system; Make that blue light-emitting diode array 64a and red light-emitting diode array can be under high voltage and low current operations; Reach low-yield loss operation (with respect to non-light emitting diode matrix), simplify the circuit between standardization electric power system and various dimensions light-emitting device simultaneously.Interelement of the present invention also can be adopted parallel connection or connection in series-parallel hybrid mode, exceeds so state bright aspect not.
Fig. 6 C illustration is according to the various dimensions light-emitting device 60 of another embodiment of the present invention.As previously mentioned, if the composition material of second photoelectric cell 66 can absorb the light from first photoelectric cell 64, therefore the luminous efficiency of various dimensions light-emitting device 60 will reduce.In the present embodiment, carrier 62 has a groove structure 70, the second photoelectric cells 66 and is arranged among this groove structure 70.Groove structure 70 forms the obstacle that light is advanced at first photoelectric cell 64 and 66 of second photoelectric cells; The light that so can reduce by first photoelectric cell 64 is by the probability of second photoelectric cell, 66 absorptions, and then the luminous efficiency of lifting various dimensions light-emitting device 60 integral body.Groove structure 70 can be the slotted eye of a unidirectional opening or the slotted eye of multidirectional opening, for example: blind hole or raceway groove.
In addition, a reflecting layer 71 more can be set in the groove structure 70.The light in second photoelectric cell, 66 directive reflecting layer can be reflected to improve the probability that it leaves groove structure 70 in this reflecting layer 71.In other words, the light of second photoelectric cell 66 is difficult for being limited among the groove structure 70.Moreover, more can insert a light transmissive material 72 on the groove structure 70 to cover second photoelectric cell 66.The light that this light transmissive material 72 is sent for second photoelectric cell 66 appears transparent, and can protect second photoelectric cell 66 to avoid receiving the influence of external force, moisture, temperature etc.Light transmissive material 72 also can be used as an optical lens if mould into a specific shape.This optical lens such as convex lens, concavees lens, Fresnel lens etc.
Shown in Fig. 6 D, in another embodiment, on first photoelectric cell 64 and second photoelectric cell 66 a cover body structure 73 can also be set.Cover body structure 73 can be protected the element in it.And the light that first photoelectric cell 64 and second photoelectric cell 66 are sent can carry out mixed light in cover body structure 73.Cover body structure 73 is made up of light transmissive material, also can comprise structures such as astigmatism, light conversion in it, and please with reference to No. the 099141373rd, this case applicant's TaiWan, China application case, it also quotes the part into this case to related description.
Shown in Fig. 6 E, still can form a heat insulation structural 74 between first photoelectric cell 64 and second photoelectric cell 66.The temperature coefficient of first photoelectric cell 64 and second photoelectric cell 66 (Temperature Coefficient) has difference usually; For example; As previously mentioned, compared to blue light-emitting diode, the red light-emitting diode luminous efficiency is comparatively remarkable with the situation that the temperature rising decays.This heat insulation structural 74 can be avoided the temperature reciprocal effect between the photoelectric cell, and particularly high-temperature components transfer heat to low-temperature device.Heat insulation structural 74 can be around one of them or several provided as one homogeneous element, and for example, heat insulation structural 74 can be around one or several first photoelectric cells 64 or one or several second photoelectric cells 66.Heat insulation structural 74 can be arranged at and make first photoelectric cell 64 and second photoelectric cell 66 thermal release each other in the carrier 62, shown in 6E.Yet heat insulation structural 74 also can be arranged under the photoelectric cell avoiding and transmit heat downwards or receive heat by the below, and for example, heat insulation structural 74 can be arranged between reflecting layer 71 and the carrier 62 or between photoelectric cell and the carrier 62.
The above embodiments enforcement aspect of the present invention that only is used for giving an example, and explain technical characterictic of the present invention, be not to be used for limiting category of the present invention.Any be familiar with this operator can unlabored change or the arrangement of the isotropism scope that all belongs to the present invention and advocated, interest field of the present invention should be as the criterion with claim.
Claims (20)
1. various dimensions light-emitting device that is electrically connected to a standardization electric power system comprises:
Carrier has a first area and is surrounded on a plurality of second areas of this first area;
First photoelectric cell comprises:
The blue light-emitting diode array is arranged on this first area, and this blue light-emitting diode array comprises a plurality of blue light-emitting diode tube cores;
First wavelength conversion body is covered on this blue light-emitting diode array; And
A plurality of second photoelectric cells are arranged at respectively on these a plurality of second areas;
Wherein, This standardization electric power system is electrically connected with this first photoelectric cell and second photoelectric cell; This first photoelectric cell and respectively this second photoelectric cell produce one first light and one second light respectively, this first light and these a plurality of second light are mixed into a mixed light and project.
2. various dimensions light-emitting device as claimed in claim 1, wherein this first wavelength conversion body comprises at least a yellow wavelengths conversion body.
3. various dimensions light-emitting device as claimed in claim 2, wherein in these a plurality of second photoelectric cells at least one of which comprise one or many red light-emitting diode tube cores.
4. various dimensions light-emitting device as claimed in claim 2, wherein in these a plurality of second photoelectric cells at least one of which comprise one or many blue light-emitting diode tube cores and a red wavelength conversion body.
5. various dimensions light-emitting device as claimed in claim 3, wherein in these a plurality of second photoelectric cells at least one of which also comprise a radiator structure, be connected with this red light-emitting diode tube core.
6. various dimensions light-emitting device as claimed in claim 5, wherein these a plurality of radiator structure materials comprise copper (copper, Cu), aluminium (aluminum, Al), ceramic material (ceramic material), silicon (silicon) and combination thereof.
7. various dimensions light-emitting device as claimed in claim 1, wherein this first wavelength conversion body comprises at least a red wavelength conversion body.
8. various dimensions light-emitting device as claimed in claim 7, wherein respectively this second photoelectric cell comprises one or many green light LED tube cores.
9. various dimensions light-emitting device as claimed in claim 7, wherein in these a plurality of second photoelectric cells at least one of which comprise one or many blue light-emitting diode tube cores and a green wavelength conversion body.
10. various dimensions light-emitting device as claimed in claim 1, wherein this mixed light has the colour temperature between 2500K to 3800K.
11. various dimensions light-emitting device as claimed in claim 10, wherein this mixed light has the colour temperature of about 3000K.
12. various dimensions light-emitting device as claimed in claim 1, wherein the luminous power ratio of this first photoelectric cell and this second photoelectric cell is between 2 to 5.
13. various dimensions light-emitting device as claimed in claim 3 also comprises one at a distance from photo structure, absorbs this first light that this first photoelectric cell is launched in order to prevent this second photoelectric cell.
14. a various dimensions light-emitting device that is electrically connected to a standardization electric power system comprises:
Carrier;
A plurality of blue light-emitting diode tube cores are arranged on this carrier with a various dimensions form, and these a plurality of blue light-emitting diode tube cores have a central area and a plurality of neighboring area;
First wavelength conversion body is covered on this central area; And
A plurality of second wavelength conversion body are covered in respectively on these a plurality of neighboring areas;
Wherein, This standardization electric power system is electrically connected with these a plurality of blue light-emitting diode tube cores; And this central area of blue light-emitting diode tube core and these a plurality of neighboring areas produce one first light and one second light respectively, and this first light and this second light are mixed into a mixed light and project.
15. various dimensions light-emitting device as claimed in claim 14, wherein this first wavelength conversion body comprises at least a yellow wavelengths conversion body, and these a plurality of second wavelength conversion body comprise at least a red wavelength conversion body.
16. various dimensions light-emitting device as claimed in claim 14, wherein this first wavelength conversion body comprises at least a red wavelength conversion body, and these a plurality of second wavelength conversion body comprise at least a green wavelength conversion body.
17. various dimensions light-emitting device as claimed in claim 14, wherein this mixed light has the colour temperature between 2500K to 3800K.
18. various dimensions light-emitting device as claimed in claim 14, wherein this mixed light has the colour temperature of about 3000K.
19. a various dimensions light-emitting device that is electrically connected to a standardization electric power system, this standardization electric power system provide in a standardization voltage, a standardization electric current and the standardization power one of which at least, comprise:
A plurality of first light emitting diodes distribute with one first various dimensions form, and each other with series, parallel and make up one of them electrical connection;
Second light emitting diode distributes with one second various dimensions form with these a plurality of first light emitting diodes, and each other with series, parallel and make up one of them electrical connection; And
Wavelength conversion body is arranged in these a plurality of first light emitting diodes at least on the one of which,
Wherein this standardization electric power system drives respectively that this first light emitting diode and this second light emitting diode send one first coloured light and one second coloured light respectively and be mixed into a mixed light.
20. various dimensions light-emitting device as claimed in claim 19 also comprises a radiator structure, is arranged under this second light emitting diode.
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| CN201110055589.1A CN102374496B (en) | 2010-08-18 | 2011-03-08 | Multidimensional lighting device |
| CN201510087265.4A CN104681694B (en) | 2010-08-18 | 2011-03-08 | Light-emitting device |
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| CN201110055589.1A CN102374496B (en) | 2010-08-18 | 2011-03-08 | Multidimensional lighting device |
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Also Published As
| Publication number | Publication date |
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| CN104681694A (en) | 2015-06-03 |
| CN104681694B (en) | 2017-08-08 |
| CN102374496B (en) | 2015-03-25 |
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