CN103050605B - A kind of LED light source module and LED light source thereof - Google Patents
A kind of LED light source module and LED light source thereof Download PDFInfo
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- CN103050605B CN103050605B CN201210584482.0A CN201210584482A CN103050605B CN 103050605 B CN103050605 B CN 103050605B CN 201210584482 A CN201210584482 A CN 201210584482A CN 103050605 B CN103050605 B CN 103050605B
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Abstract
The embodiment of the invention discloses a kind of LED light source module and LED light source thereof, comprising: LED list lamp, LED list lamp comprises: package support and the luminescence chip, fluorescent glue and the light-distribution lens that are fixed on package support; Side wall ring is located at the surrounding of LED list lamp, the reflector that bottom and LED list lamp are fixed together, and the C0-180 cross section of reflector, C90-270 cross section overlap with the C0-180 cross section of light-distribution lens, C90-270 cross section respectively; Wherein, the C0-180 cross section profile of reflector is symmetric form, C90-270 cross section profile is asymmetric, and the apex height of the C0-180 cross section profile of reflector is less than the apex height of its C90-270 cross section profile, in street lighting application, especially for the illumination of car lane, the utilance of illuminating light flux is improve 5%-10%; In the application of floodlighting on a large scale, achieve thus lamp stand lower zone to the gradual transition of fringe region, ensure to there will not be obvious dark space and speck in field of illumination, and technique is simple, cost is lower.
Description
Technical field
The present invention relates to LED illumination lamp manufacturing technology field, particularly relate to a kind of LED light source module and LED light source thereof.
Background technology
LED is easy to realize various forms of luminous intensity distribution, at present conventional technological means be scioptics to carry out luminous intensity distribution design, wherein, the luminous intensity distribution basis of LED lamp can be once light-distribution technique, also can be secondary light-distribution technique.
Once light-distribution technique is in the process of the single LEDs of encapsulation, by lens packages on package support, makes itself and LED luminescence chip, fluorescent glue and package support form one, thus forms LED optical system.Wherein, LED luminescence chip surface-coated has fluorescent glue, is light source; Lens are generally silica-gel lens.This technique is equivalent to disposablely achieve target luminous intensity distribution form in the process making LED, and therefore, we claim this technique to be once light-distribution technique usually, and the lens adopted are lens.
Secondary light-distribution technique be install on the basis of the intact LED of encapsulation independently lens to carry out luminous intensity distribution design.Wherein, encapsulating intact LED is light source, and the lens adopted are generally the lens of polymethyl methacrylate (PMMA) material, and these lens independently and outside light source, the two forms optical system.This technique is equivalent on the basis of LED once light-distribution technique, turn increase second level lens and carries out luminous intensity distribution, thus achieve target luminous intensity distribution form, therefore, we claim this technique to be secondary light-distribution technique usually, and what adopt is called secondary lens independent of the lens outside LED.
But when adopting the light fixture of once light-distribution technique in prior art for throwing light on, the utilance of luminous flux is lower; When adopting the light fixture of secondary light-distribution technique for throwing light on, although the utilization of luminous flux promotes to some extent, its cost is higher, and production operation complexity is also larger.
Adopt the LED illumination lamp that secondary light-distribution technique makes in prior art, mainly adopt the LED list lamp of lambert's type luminous intensity distribution of beam angle about 120 ° in conjunction with secondary lens, carry out realize target luminous intensity distribution.Although, compared to the LED illumination lamp that once light-distribution technique makes, the utilance of its luminous flux promotes to some extent, but, when this lighting is applied to street lighting and outdoor floodlighting, LED illumination lamp generally have tens even hundreds of LEDs encapsulate single lamp, cause when specifically making, need to encapsulate single lamp to every LEDs and all coordinate installation secondary lens, this just means that the making of every lighting all needs an installation tens even hundreds of secondary lens.And in installation process, not only secondary lens fixedly need the production auxiliary materials such as fixing glue, and, the installation of each secondary lens needs artificial careful operation, especially the installation of the secondary lens of unsymmetric structure needs the artificial direction of rotation carefully grasping every secondary lens, thus causing the LED illumination lamp adopting the making of secondary light-distribution technique, cost is higher, and production operation complexity is higher.
On basis based on above-mentioned research, embodiments provide a kind of LED light source, comprising:
LED list lamp, described LED list lamp comprises: package support and the luminescence chip, fluorescent glue and the light-distribution lens that are fixed on described package support;
Side wall ring is located at the surrounding of described LED list lamp, the reflector that bottom and described LED list lamp are fixed together, and the C0-180 cross section of described reflector, C90-270 cross section overlap with the C0-180 cross section of described light-distribution lens, C90-270 cross section respectively;
Wherein, the C0-180 cross section profile of described reflector is symmetric form, and C90-270 cross section profile is asymmetric, and the apex height of the C0-180 cross section profile of described reflector is less than the apex height of its C90-270 cross section profile.
The embodiment of the present invention additionally provides a kind of LED light source module comprising multiple above-mentioned LED light source.
The LED light source module that the embodiment of the present invention provides and LED light source thereof, compared with the lighting adopting once light-distribution technique to make in prior art, in street lighting application, especially for the illumination of car lane, the utilance of illuminating light flux is improve 5%-10%; In the application of floodlighting on a large scale, illuminance of ground distribution is comparatively even, achieve thus lamp stand lower zone to the gradual transition of fringe region, guarantee there will not be obvious dark space and speck in field of illumination.
The LED light source module that the embodiment of the present invention provides and LED light source thereof, compared with the lighting adopting secondary light-distribution technique to make in prior art, on the basis of improving luminous flux utilance, once light-distribution technique is adopted to make single LED lamp, technique is comparatively simple, effectively can save cost, reduce the complexity of production operation.
For enabling above-mentioned purpose of the present invention, feature and advantage more become apparent, and are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.
Set forth detail in the following description so that fully understand the present invention.But the present invention can be different from alternate manner described here to implement with multiple, those skilled in the art can when without prejudice to doing similar popularization when intension of the present invention.Therefore the present invention is not by the restriction of following public concrete enforcement.
The LED light source module provided the embodiment of the present invention below in conjunction with embody rule scene and LED light source thereof are described in detail.
Summary of the invention
For solving the problems of the technologies described above, embodiments provide a kind of LED light source module and LED light source thereof, to improve the utilance of luminous flux, and cost is lower, and production operation complexity is less.
For solving the problem, embodiments provide following technical scheme:
A kind of LED light source, comprising: LED list lamp, described LED list lamp comprises: package support and the luminescence chip, fluorescent glue and the light-distribution lens that are fixed on described package support; Side wall ring is located at the surrounding of described LED list lamp, the reflector that bottom and described LED list lamp are fixed together, and the C0-180 cross section of described reflector, C90-270 cross section overlap with the C0-180 cross section of described light-distribution lens, C90-270 cross section respectively; Wherein, the C0-180 cross section profile of described reflector is symmetric form, and C90-270 cross section profile is asymmetric, and the apex height of the C0-180 cross section profile of described reflector is less than the apex height of its C90-270 cross section profile.
Preferably, two apex height of described reflector C90-270 cross section profile are not etc.
Preferably, the sidewall of described reflector comprises inner surface and outer surface two sides, and wherein, from one end that described reflector C90-270 cross section profile apex height is less, the area of each level cross-sectionn of described inner surface is to reducing gradually bottom it.
Preferably, in described reflector C0-180 cross section, the profile of described inner surface is arc or linear; In other each vertical sections comprising described reflector C0-180 cross section and C90-270 cross section common wire, the profile of described inner surface is arc, and the direction in C90-270 cross section is rotated to along described reflector C0-180 cross section, the radius of curvature of described inner surface profile reduces gradually.
Preferably, described light-distribution lens is bimodal lens, and the C0-180 cross section of described light-distribution lens comprises: the axis that described package support center and described luminescence chip center define, and two of described bimodal lens high points; The C90-270 cross section orthogonal of described light-distribution lens in the C0-180 cross section of described light-distribution lens, and comprises the axis that described package support center and described luminescence chip center define.
Preferably, in described reflector C0-180 cross section, when the profile of described inner surface is linear, the angle in the profile of described inner surface and horizontal direction is 85 °-90 °, comprises endpoint value.
Preferably, the ratio of the described apex height of reflector C90-270 cross section profile and the apex height of its C0-180 cross section profile is 1.5:1-2.5:1, comprises endpoint value.
Preferably, the ratio between described reflector C90-270 cross section profile two apex height is 1.5:1-3.0:1, comprises endpoint value.
Preferably, described light-distribution lens is hemispherical lens, and the C0-180 cross section of described light-distribution lens comprises the axis that described package support center and described luminescence chip center define; The C90-270 cross section orthogonal of described light-distribution lens in the C0-180 cross section of described light-distribution lens, and comprises the axis that described package support center and described luminescence chip center define.
Preferably, in described reflector C0-180 cross section, when the profile of described inner surface is linear, the angle in the profile of described inner surface and horizontal direction is 55 °-75 °, comprises endpoint value.
Preferably, the ratio of the described apex height of reflector C90-270 cross section profile and the apex height of its C0-180 cross section profile is 2.0:1-3.5:1, comprises endpoint value.
Preferably, the ratio between described reflector C90-270 cross section profile two apex height is 1.5:1-6.0:1, comprises endpoint value.
Preferably, from one end that extremely described reflector C90-270 cross section profile apex height is less, one end that described reflector C90-270 cross section profile apex height is larger, the height of described reflector sidewall reduces or first reduces to increase gradually again.
Preferably, described reflector inner surface is mirror surface reflecting type or scattered reflection type.
Preferably, have opening bottom described reflector, described opening matches with described package support, and the center of described opening overlaps with the bottom center of described package support.
Preferably, described package support comprises the copper post being positioned at its bottom centre, and described copper post is forward type or has notch cuttype groove.
A kind of LED light source module, comprises the LED light source described in multiple above-mentioned any one.
Preferably, the reflector in described multiple LED light source is integrated.
Compared with prior art, technique scheme has the following advantages:
The technical scheme that the embodiment of the present invention provides, compared with the lighting adopting once light-distribution technique to make in prior art, in street lighting application, especially for the illumination of car lane, improves 5%-10% by the utilance of illuminating light flux; In the application of floodlighting on a large scale, illuminance of ground distribution is comparatively even, achieve thus lamp stand lower zone to the gradual transition of fringe region, guarantee there will not be obvious dark space and speck in field of illumination.
Technical scheme that the embodiment of the present invention provides, compared with the lighting adopting secondary light-distribution technique to make in prior art, on the basis of improving luminous flux utilance, once light-distribution technique is adopted to make single LED lamp, technique is comparatively simple, effectively can save cost, reduces the complexity of production operation.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the LED light source that Fig. 1 provides for the embodiment of the present invention one;
The structural perspective of the reflector that Fig. 2 provides for the embodiment of the present invention one;
The vertical view of the reflector that Fig. 3 provides for the embodiment of the present invention one;
The cutaway view in the C90-270 cross section of the reflector that Fig. 4 provides for the embodiment of the present invention one;
The STRUCTURE DECOMPOSITION schematic diagram of the LED light source that Fig. 5 provides for the embodiment of the present invention one;
The STRUCTURE DECOMPOSITION schematic diagram of a kind of LED list lamp that Fig. 6 provides for the embodiment of the present invention one;
The cutaway view in the C0-180 cross section of the reflector that Fig. 7 provides for the embodiment of the present invention one;
The distribution curve flux figure of the LED list lamp that Fig. 8 provides for the embodiment of the present invention one;
The distribution curve flux figure of the LED light source that Fig. 9 provides for the embodiment of the present invention one;
The illumination equiluminous gray-scale figure of the LED light source that Figure 10 provides for the embodiment of the present invention one;
The STRUCTURE DECOMPOSITION schematic diagram of the another kind of LED list lamp that Figure 11 provides for the embodiment of the present invention one;
The structural representation of the LED light source that Figure 12 provides for the embodiment of the present invention two;
The structural perspective of the reflector that Figure 13 provides for the embodiment of the present invention two;
The vertical view of the reflector that Figure 14 provides for the embodiment of the present invention two;
The cutaway view in the C90-270 cross section of the reflector that Figure 15 provides for the embodiment of the present invention two;
The STRUCTURE DECOMPOSITION schematic diagram of the LED light source that Figure 16 provides for the embodiment of the present invention two;
The STRUCTURE DECOMPOSITION schematic diagram of a kind of LED list lamp that Figure 17 provides for the embodiment of the present invention two;
The cutaway view in the C0-180 cross section of the reflector that Figure 18 provides for the embodiment of the present invention two;
The distribution curve flux figure of the LED list lamp that Figure 19 provides for the embodiment of the present invention two;
The distribution curve flux figure of the LED light source that Figure 20 provides for the embodiment of the present invention two;
The illumination equiluminous gray-scale figure of the LED light source that Figure 21 provides for the embodiment of the present invention two;
Figure 22 is that in prior art, beam angle is the illumination equiluminous gray-scale figure of the LED light source of 60 ° of luminous intensity distributions;
Figure 23 is that in prior art, beam angle is the illumination equiluminous gray-scale figure of the LED light source of 30 ° of luminous intensity distributions;
Figure 24 is that in prior art, beam angle is the illumination equiluminous gray-scale figure of the LED light source of 15 ° of luminous intensity distributions;
The structural representation of the LED light source module that Figure 25 provides for the embodiment of the present invention four;
The STRUCTURE DECOMPOSITION schematic diagram of the LED light source module that Figure 26 provides for the embodiment of the present invention four.
Embodiment
C-planar system is a kind of conventional measurement and describes the coordinate system of light source or light fixture light distribution, and this system can be used in the luminosity measurement of LED light source or light fixture.Under C-planar system, measure and describe LED light source or light fixture spatial light intensity distribution, generally described by distribution curve flux, and described distribution curve flux refers under polar coordinate system or rectangular coordinate system, light intensity value in certain the luminous intensity distribution plane marked corresponding to all angles, and the curve synoptic diagram describing out that this light intensity value changes with angle.Wherein, the distribution curve flux that what people paid close attention to and analyzed is in these two luminous intensity distribution planes of C0-C180 and C90-C270.
From distribution curve flux figure, the distribution curve flux in these two planes can be overlap, and also can be diverse.Angle in general definition distribution curve flux figure on the left of 0 ° of angle line is positive-angle, represent with "+", angle on the right side of 0 ° of angle line is negative angle, represent with "-", distribution curve flux then in each plane can make symmetrical expression, namely symmetrical relative to 0 ° of angle line, can be also asymmetric, namely asymmetric relative to 0 ° of angle line left and right.And, can the value at reading optical beam angle from distribution curve flux, described beam angle refers to that on this distribution curve flux, largest light intensity angle line is rotated counterclockwise the angle sum turned over when the angle turned over during 50% largest light intensity angle line and this largest light intensity angle line dextrorotation go to 50% largest light intensity angle line.
In addition, in order to express easily, we become C0-180 cross section by the structure of LED light source with the face of C0-180 luminous intensity distribution planes overlapping, become C90-270 cross section with the face of C90-270 luminous intensity distribution planes overlapping, and C0-C180 cross section and C90-270 cross section are as the cutaway view plane of LED light source structure.
Just as described in the background section, when adopting the light fixture of once light-distribution technique in prior art for throwing light on, the utilance of luminous flux is lower; When adopting the light fixture of secondary light-distribution technique for throwing light on, although the utilization of luminous flux promotes to some extent, its cost is higher, and production operation complexity is also higher.Be described below in conjunction with concrete condition.
In street lighting, inventor studies discovery, and common car lane is arranged as 2 tracks, track to 8, and wherein, some car lane also comprises central partition and greenbelt etc.And lamp stand spread pattern common in car lane has one-sided arrangement, Bilateral Symmetry arrangement and bilateral to be staggered, and the ratio of distance between adjacent lamp stand and pole height is generally 3:1-5:1, and the lamp stand cantilever elevation angle is 0 ° to 15 °.There are wider bicycle lane and the street on pavement for some, symmetrically on a lamp stand two street lamps can be installed, for irradiating car lane and bicycle lane respectively.
Common street lighting scene is considered, inventor studies discovery further, the comparatively reasonably luminous intensity distribution form of LED street lamp is: in C0-180 luminous intensity distribution plane, in the plane in i.e. corresponding road travel direction, its distribution curve flux is bat aerofoil profile, beam angle is in the scope of 135 °-150 °, and the angle corresponding to largest light intensity value is in the scope of ± 60 ° to ± 65 °, and the ratio of the light intensity value at largest light intensity value and 0 ° of angle line place is in the scope of 1.5:1-3:1; In C90-270 luminous intensity distribution plane, in the plane in i.e. corresponding road width direction, its distribution curve flux is asymmetric, beam angle is in the scope of 60 °-100 °, angle corresponding to largest light intensity value is in the scope of+10 ° to+45 °, thus make the light intensity value at each angle place, distribution curve flux positive-angle side in C90-270 luminous intensity distribution plane all be greater than the light intensity value at equal negative angle place, and then the illuminating ray of LED street lamp guiding is more had the direction of value, reduce unnecessary ray waste, improve the utilance of luminous flux.
Out of doors in floodlighting scene, inventor studies discovery, common scene is in some extensive area, arrange one or several high bar, and on high bar, several flood lights are installed, thus by selecting suitable flood light type and arranging rational flood light mounting arrangement, illuminate whole extensive area, reach the illuminance of ground value and uniformity of illuminance that need in this region, specifically different according to the difference of field of illumination scope.
Inventor studies discovery further, and the projection distance of general application requirements flood light is in the scope of 30 meters to 75 meters, and the illuminance of ground uniformity in this field of illumination is more than or equal to 0.3; Some special occasions require the projection distance of flood light reach 100 meters even farther, and the illuminance of ground uniformity in this field of illumination is more than or equal to 0.5.In addition, for the Zhao meter state of extensive area, especially main zone of action or working region in this field of illumination, the distribution that people wish its illuminance of ground is more evenly better, thus makes the brightness value from lamp stand lower zone to fringe region be the transition of gradual change.
And in prior art, adopt the lighting that once light-distribution technique makes, in manufacturing process, be by bimodal lens packages on the package support, make itself and luminescence chip, fluorescent glue and package support form one, become LED list lamp, and realize target luminous intensity distribution.Wherein, bimodal lens are generally silica-gel lens, and the cutaway view profile in its C0-180 cross section has two highly consistent high points, similar and double-peak shape; The cutaway view profile in its C90-270 cross section is symmetric form.The luminous intensity distribution form of the LED lamp that this luminous intensity distribution technique obtains is: C0-180 distribution curve flux is symmetrical bat aerofoil profile, C90-270 distribution curve flux is symmetrical approximate cone-shape or approximate ellipsoidal, when being applied to street lighting, especially for car lane, be asymmetric illuminating light flux utilance low 5% to 10% than the distribution curve flux in C90-C270 luminous intensity distribution plane.
And, the LED illumination lamp that once light-distribution technique makes is adopted in prior art, the luminous intensity distribution form realized is: C0-180 luminous intensity distribution plane, light distribution in C90-270 luminous intensity distribution plane and other luminous intensity distribution planes is consistent, namely from distribution curve flux figure, its C0-180 luminous intensity distribution plane, overlap during distribution curve flux in C90-270 luminous intensity distribution plane and other luminous intensity distribution planes, and be all symmetrical, beam angle is in the scope of 10 °-60 °, when causing it to be applied to the floodlighting in outdoor largescale region, easily there is some the obvious dark space of local appearance or speck in illumination zone.As arranged a lamp stand in length 75 meters, wide 75 meters of regional centers, bar is high 30 meters, and lamp stand top layout one encloses flood light totally 8 to 12, and the lamp installation elevation angle about 55 to 65 is spent.When the beam angle of flood light is less, as in the scope of 15 ° to 30 °, easily there is relative dark space at lamp stand lower zone, and occur relative speck in some place in this region; When the beam angle of flood light is larger, as 60 °, because projection distance is far away not, easily there is blanking bar in region a long way off.
Embodiment one:
As shown in Figure 1, the LED light source that the embodiment of the present invention provides comprises: LED list lamp 1, described LED list lamp 1 adopts once light-distribution technique to make, and comprising: package support and the luminescence chip, fluorescent glue and the light-distribution lens that are fixed on described package support; Side wall ring is located at the surrounding of described LED list lamp 1, the reflector 2 that bottom is fixed together with described LED list lamp 1, the C0-180 cross section 3 of described reflector 2, C90-270 cross section 4 overlap with the C0-180 cross section of described light-distribution lens, C90-270 cross section respectively; Wherein, C0-180 cross section 3 profile of described reflector 2 is symmetric form, and C90-270 cross section 4 profile is asymmetric, and the apex height of C0-180 cross section 3 profile of described reflector 2 is less than the apex height of its C90-270 cross section 4 profile.
As shown in Figure 2, in the LED light source that the embodiment of the present invention provides, the sidewall of described reflector 2 comprises inner surface 22 and outer surface 23 two sides, as shown in Figure 3, wherein, the vertical view of described outer surface 23 is oval, and the vertical view of described inner surface 22 is annular.In one embodiment of the invention, as shown in Figure 4, C90-270 cross section 4 profile 24 of described reflector 2 is asymmetric comprising: two apex height of described reflector 2C90-270 cross section 4 profile 24 are not etc., and from the less one end of C90-270 cross section 4 profile 24 apex height of described reflector 2, the area of the described each level cross-sectionn of inner surface 22 to reducing gradually bottom it, thus plays certain optically focused effect to the light that described LED list lamp 1 sends.
In one embodiment of the invention, described light-distribution lens is bimodal lens, as shown in Figure 5, then and described LED list lamp 1, as shown in Figure 6, comprising: package support 11 and the luminescence chip 13, fluorescent glue 14 and the light-distribution lens 12 that are fixed on described package support 11.Wherein, the C0-180 cross section 3 of described light-distribution lens 12 comprises: the axis that described package support 11 center and described luminescence chip 13 center define, and two of described bimodal lens 12 high points; The C90-270 cross section 4 of described light-distribution lens 12 perpendicular to the C0-180 cross section 2 of described light-distribution lens 12, and comprises the axis that described package support 11 center and described luminescence chip 13 center define.
Needs illustrate, in other embodiments of the invention, described light-distribution lens 12 can also be hemispherical lens or other light-distribution lens, and the present invention does not limit this.
In the LED light source that the embodiment of the present invention provides, in the C0-180 cross section 3 of described reflector 2, the profile of described inner surface 2 can be arc, also can linear, as shown in Figure 7; In other each vertical sections comprising described reflector 2C0-180 cross section 3 and C90-270 cross section 4 common wire, the profile 24 of described inner surface 22 is arc, and it is preferred, the direction in C90-270 cross section 4 is rotated to along described reflector 2C0-180 cross section 3, the radius of curvature of described inner surface 22 profile reduces gradually, namely rotate to the direction in C90-270 cross section 4 along described reflector 2C0-180 cross section 3, the curvature of described inner surface 22 profile is increasing.
In one embodiment of the invention, when the profile of inner surface 22 in its C0-180 cross section 3 of described reflector 2 is linear, angle in the profile of described inner surface 22 and horizontal direction is 85 °-90 °, comprise endpoint value, namely the contour curvature of the inner surface 22 of described reflector 2 in its C0-180 cross section 3 can be infinitely great, and also namely the contour curvature of inner surface 22 in its C0-180 cross section 3 of described reflector 2 can be vertical curve; The ratio of the apex height of described reflector 2C90-270 cross section 4 profile and the apex height of its C0-180 cross section 3 profile is 1.5:1-2.5:1, comprises endpoint value; Ratio between described reflector 2C90-270 cross section 4 profile two apex height is 1.5:1-3.0:1, comprises endpoint value, thus the light sent by single for described encapsulation lamp 1 guiding more has the direction of value.
It should be noted that, from one end that extremely described reflector 2C90-270 cross section 3 profile apex height is less, one end that described reflector 2C90-270 cross section 4 profile apex height is larger, the height of described reflector 2 sidewall can reduce gradually, also can first reduce to increase again, as long as ensure that two apex height of described reflector 2C90-270 cross section 4 profile do not wait.
In the LED light source that the embodiment of the present invention provides, the inner surface 22 of described reflector 2 can be mirror surface reflecting type, also can be scattered reflection type, thus the more valuable direction of the light that described LED list lamp is sent guiding, improve the light utilization of described LED list lamp 1.In the present embodiment, when the inner surface 22 of described reflector 2 is mirror surface reflecting type, described inner surface 22 can be coated with aluminium, chromium or silver etc., but the present invention does not limit this.
In addition, the bottom of described reflector 2 has opening 21, described opening 21 matches with described package support 11, and the center of described opening 21 overlaps with the bottom center of described package support 11, thus is fixed together with described LED list lamp 1 by described reflector 2.
It should be noted that, described package support 11 comprises the copper post 15 being positioned at its bottom centre, in the present embodiment, described copper post 15 can be forward type, as shown in Figure 6, its upper surface is concordant everywhere, then the structure of described LED list lamp 1 is: described luminescence chip 13 is positioned at the upper surface center of described copper post 15; Fluorescent glue 14 is coated on described copper post 15 upper surface, and wraps up described luminescence chip 13; Described light-distribution lens 12 is fixed on the top of described package support 11.
As shown in Figure 8, the distribution curve flux schematic diagram of LED list lamp 1 that provides for the embodiment of the present invention of Fig. 8.As can be seen from Figure 8, in the LED light source that the embodiment of the present invention provides, the luminous intensity distribution form of described LED list lamp 1 is: the distribution curve flux in C0-C180 plane is bat aerofoil profile, beam angle is about 150 ° to 155 °, angle corresponding to largest light intensity value is ± 60 degree to ± 65 degree, and the ratio of largest light intensity value and 0 ° of angle line light intensity value is in 1.6:1 to 1.7:1 scope; In C90-C270 plane, distribution curve flux is symmetrical approximate ellipsoidal, and beam angle is 120 °.
As shown in Figure 9, the distribution curve flux schematic diagram of LED light source that provides for the embodiment of the present invention of Fig. 9.As can be seen from Figure 9, the luminous intensity distribution form of described LED light source is: the distribution curve flux in C0-C180 plane is bat aerofoil profile, beam angle is within the scope of 145 °-150 °, angle corresponding to largest light intensity value is ± 60 degree to ± 65 degree, and largest light intensity value is 2.3:1 to 2.4:1 with the ratio of 0 ° of angle line light intensity value; Distribution curve flux in C90-C270 plane is asymmetric, beam angle is within the scope of 80 °-85 °, angle corresponding to largest light intensity value is that+20 degree are spent to+25, and in described C90-C270 luminous intensity distribution plane, the light intensity value of each positive-angle side is greater than the light intensity value at equal negative angle place.
As shown in Figure 10, Figure 10 is positioned at the square region center of long 50 meters, wide 50 meters for LED light source that the embodiment of the present invention provides, and LED light source setting height(from bottom) is when being 7 meters, brightness value (unit the is lx) distribution situation on ground, in the figure, the brightness value distribution situation on described ground represents by equiluminous gray-scale figure, and the light and shade transition of GTG represents the high-low transition of brightness value.As can be seen from Figure 10, the LED light source that the embodiment of the present invention provides, achieve thus lamp stand lower zone to the gradual transition of fringe region, ensure to there will not be obvious dark space below lamp stand, in other field of illuminations, there will not be obvious speck.
The LED light source that the embodiment of the present invention provides is for common 2 to 3 tracks, and lighting spacing and its setting height(from bottom) than be 3 to 5 street lighting time, car lane road surface, street uniformity of illuminance can be realized and be greater than 0.4, brightness total uniformity in road surface is greater than 0.4, road surface brightness longitudinal uniformity is greater than 0.7, thus the utilance of illuminating light flux is improve 5%-10%, when same light flux, road surface average illumination can be improved 15%-30%.
In another embodiment of the present invention, in order to improve the luminous flux utilance of described LED light source further, described copper post 15 preferably has notch cuttype groove, as shown in Figure 11 (a) shows, preferably, described Tong Zhu center comprises two conical sockets connected, and the center of described first groove 16 and the second groove 17 is on same straight line, namely the first groove 16 being positioned at top and the second groove 17 be positioned at below described first groove 16, and the cross-sectional area bottom described first groove 16 is greater than the cross-sectional area at described second groove 17 top.In the present embodiment, as shown in Figure 11 (b), the structure of described LED list lamp 1 is: described luminescence chip 13 is positioned at described second groove 17 bottom centre; Fluorescent glue 14 fills described second groove 17 completely, and wraps up described luminescence chip 13; Described light-distribution lens 12 fixing with described package support 11 above.
Due in the embodiment of the present invention, the cross-sectional area bottom the first groove 16 of described copper post 15 is greater than the cross-sectional area at described second groove 17 top, and described luminescence chip 13 is positioned at described second groove 17 bottom centre; So described first groove 16 has certain optically focused effect to the light that described luminescence chip 13 sends, thus the luminous intensity distribution form of the LED light source making the embodiment of the present invention provide is: the distribution curve flux in C0-C180 plane is bat aerofoil profile, beam angle is within the scope of 145 °-150 °, angle corresponding to largest light intensity value is ± 60 degree to ± 65 degree, and largest light intensity value is 2.3:1 to 2.4:1 with the ratio of 0 ° of angle line light intensity value; Distribution curve flux in C90-C270 plane is asymmetric, beam angle is in the scope of 70 °-75 °, angle corresponding to largest light intensity value is+20 ° to+25 °, and in described C90-C270 luminous intensity distribution plane, the light intensity value of each positive-angle side is greater than the light intensity value at equal negative angle place, thus when making LED light source provided by the present invention be applied to street lighting, illumination and the brightness of carriageway surfacing can be improved further, and then improve the utilance of LED light source luminous flux further.
In sum, the LED light source that the embodiment of the present invention provides, compared with the lighting adopting once light-distribution technique to make in prior art, in street lighting application, especially for the illumination of car lane, the utilance of illuminating light flux is improve 5%-10%; In the application of floodlighting on a large scale, illuminance of ground distribution is comparatively even, achieve thus lamp stand lower zone to the gradual transition of fringe region, guarantee there will not be obvious dark space and speck in field of illumination.
The LED light source module that the embodiment of the present invention provides and LED light source thereof, compared with the lighting adopting secondary light-distribution technique to make in prior art, on the basis of improving luminous flux utilance, once light-distribution technique is adopted to make single LED lamp, technique is comparatively simple, effectively can save cost, reduce the complexity of production operation.
Embodiment two:
As shown in figure 12, the LED light source that the embodiment of the present invention provides comprises: LED list lamp 1, described LED list lamp 1 adopts once light-distribution technique to make, and comprising: package support and the luminescence chip, fluorescent glue and the light-distribution lens that are fixed on described package support; Side wall ring is located at the surrounding of described LED list lamp 1, the reflector 2 that bottom is fixed together with described LED list lamp 1, the C0-180 cross section 3 of described reflector 2, C90-270 cross section 4 overlap with the C0-180 cross section of described light-distribution lens, C90-270 cross section respectively; Wherein, C0-180 cross section 3 profile of described reflector 2 is symmetric form, and C90-270 cross section 4 profile is asymmetric, and the apex height of C0-180 cross section 3 profile of described reflector 2 is less than the apex height of its C90-270 cross section 4 profile.
As shown in Figs. 13 and 14, in the LED light source that the embodiment of the present invention provides, the sidewall of described reflector 2 comprises inner surface 22 and outer surface 23 two sides.In one embodiment of the invention, as shown in figure 15, C90-270 cross section 4 profile 24 of described reflector 2 is asymmetric comprising: two apex height of described reflector 2C90-270 cross section 4 profile 24 are not etc., and from the less one end of C90-270 cross section 4 profile 24 apex height of described reflector 2, the area of the described each level cross-sectionn of inner surface 22 to reducing gradually bottom it, thus plays certain optically focused effect to the light that described LED list lamp 1 sends.
In one embodiment of the invention, described light-distribution lens is hemispherical lens, as shown in figure 16, then and described LED list lamp 1, as shown in figure 17, comprising: package support 11 and the luminescence chip 13, fluorescent glue 14 and the light-distribution lens 12 that are fixed on described package support 11.Wherein, the C0-180 cross section 3 of described light-distribution lens 12 comprises: the axis that described package support 11 center and described luminescence chip 13 center define, and two of described bimodal lens 12 high points; The C90-270 cross section 4 of described light-distribution lens 12 perpendicular to the C0-180 cross section 2 of described light-distribution lens 12, and comprises the axis that described package support 11 center and described luminescence chip 13 center define.
Needs illustrate, in other embodiments of the invention, described light-distribution lens 12 can also be bimodal lens or other light-distribution lens, and the present invention does not limit this.
In the LED light source that the embodiment of the present invention provides, in the C0-180 cross section 3 of described reflector 2, the profile of described inner surface 2 can be arc, also can linear, as shown in figure 18; In other each vertical sections comprising described reflector 2C0-180 cross section 3 and C90-270 cross section 4 common wire, the profile 24 of described inner surface 22 is arc, and it is preferred, the direction in C90-270 cross section 4 is rotated to along described reflector 2C0-180 cross section 3, the radius of curvature of described inner surface 22 profile reduces gradually, namely rotate to the direction in C90-270 cross section 4 along described reflector 2C0-180 cross section 3, the curvature of described inner surface 22 profile is increasing.
In one embodiment of the invention, when the profile of inner surface 22 in its C0-180 cross section 3 of described reflector 2 is linear, the angle in the profile of described inner surface 22 and horizontal direction is 55 °-75 °, comprises endpoint value; The ratio of the apex height of described reflector 2C90-270 cross section 4 profile and the apex height of its C0-180 cross section 3 profile is 2.0:1-3.5:1, comprises endpoint value; Ratio between described reflector 2C90-270 cross section 4 profile two apex height is 1.5:1-6.0:1, comprises endpoint value, thus the light sent by single for described encapsulation lamp 1 guiding more has the direction of value.
It should be noted that, from one end that extremely described reflector 2C90-270 cross section 3 profile apex height is less, one end that described reflector 2C90-270 cross section 4 profile apex height is larger, the height of described reflector 2 sidewall can reduce gradually, also can first reduce to increase again, as long as ensure that two apex height of described reflector 2C90-270 cross section 4 profile do not wait.
In the LED light source that the embodiment of the present invention provides, the inner surface 22 of described reflector 2 can be mirror surface reflecting type, also can be scattered reflection type, thus the more valuable direction of the light that described LED list lamp is sent guiding, improve the light utilization of described LED list lamp 1.In the present embodiment, when the inner surface 22 of described reflector 2 is mirror surface reflecting type, described inner surface 22 can be coated with aluminium, chromium or silver etc., but the present invention does not limit this.
In addition, the bottom of described reflector 2 has opening 21, described opening 21 matches with described package support 11, and the center of described opening 21 overlaps with the bottom center of described package support 11, thus is fixed together with described LED list lamp 1 by described reflector 2.
It should be noted that, described package support 11 comprises the copper post 15 being positioned at its bottom centre, in one embodiment of the invention, described copper post 15 can be forward type, as shown in figure 17, its upper surface is concordant everywhere, then the structure of described LED list lamp 1 is: described luminescence chip 13 is positioned at the upper surface center of described copper post 15; Fluorescent glue 14 is coated on described copper post 15 upper surface, and wraps up described luminescence chip 13; Described light-distribution lens 12 is fixed on the top of described package support 11.
In another embodiment of the present invention, described copper post 15 has notch cuttype groove, preferably, described Tong Zhu center comprises two conical sockets connected, and the center of described first groove and the second groove is on same straight line, namely the first groove being positioned at top and the second groove be positioned at below described first groove, and the cross-sectional area of described first bottom portion of groove is greater than the cross-sectional area of described second groove top.In the present embodiment, the structure of described LED list lamp 1 is: described luminescence chip is positioned at described second bottom portion of groove center; Fluorescent glue fills described second groove completely, and wraps up described luminescence chip; Described light-distribution lens fixing with described package support above.
As shown in figure 19, the distribution curve flux schematic diagram of LED list lamp 1 that provides for the embodiment of the present invention of Figure 19.As can be seen from Figure 19, in the LED light source that the embodiment of the present invention provides, the luminous intensity distribution form of described LED list lamp 1 is: beam angle is about lambert's type luminous intensity distribution of 120 °, namely from distribution curve flux figure, distribution curve flux in C0-C180, C90-270 luminous intensity distribution plane and other luminous intensity distribution planes overlaps, and be all symmetric form, beam angle is all about 120 degree.
As shown in figure 20, the distribution curve flux schematic diagram of LED light source that provides for the embodiment of the present invention of Figure 20.As can be seen from Figure 20, the luminous intensity distribution form of described LED light source is: the distribution curve flux in C0-C180 luminous intensity distribution plane is symmetric form, and beam angle is about 100 °; Distribution curve flux in C90-270 luminous intensity distribution plane is asymmetric, and beam angle is 30 °, and the angle corresponding to largest light intensity value in C90-270 luminous intensity distribution plane is+28 °.
In the LED light source 12 embodiment of the present invention provided, 12 prior aries, beam angle is that in the LED light source of 60 ° of luminous intensity distributions, 12 prior aries, beam angle is that in the LED light source of 30 ° of luminous intensity distributions, 12 prior aries, beam angle is that the LED light source of 15 ° of luminous intensity distributions is installed on the square region center being positioned at long 50 meters, wide 50 meters respectively, it is highly the lamp stand top of 30 meters, and the installation elevation angle of all LED light sources, luminous flux all consistent time, detect brightness value (unit the is lx) distribution situation obtaining this ground, field of illumination, respectively as shown in Figure 21, Figure 22, Figure 23 and Figure 24.In the figure, the brightness value distribution situation on described ground represents by equiluminous gray-scale figure, and the light and shade transition of GTG represents the high-low transition of brightness value.
Figure 21, Figure 22, Figure 23 and Figure 24 are known in contrast, in the LED light source that the embodiment of the present invention provides and prior art, beam angle is the LED light source of 60 ° of luminous intensity distributions, illuminance of ground can be realized from lamp stand lower zone to the even transition of fringe region, and the LED light source of beam angle to be the LED light source of 30 ° of luminous intensity distributions and beam angle be 15 ° of luminous intensity distributions in prior art, illuminance of ground can not be realized from lamp stand lower zone to the even transition of fringe region, easily there is relative dark space at lamp stand lower zone, and occur relative speck in the subregion of other field of illuminations.
Again contrast Figure 21 and Figure 22 known, although beam angle is the LED light source of 60 ° of luminous intensity distributions in the LED light source that the embodiment of the present invention provides and prior art, all achieve illuminance of ground from lamp stand lower zone to the even transition of fringe region, but, in contrast, the illuminance of ground value that the LED light source that the embodiment of the present invention provides produces is higher, and the illuminance of ground uniformity is also higher.
In sum, the LED light source that the embodiment of the present invention provides, compared with the lighting adopting once light-distribution technique to make in prior art, in street lighting application, especially for the illumination of car lane, improves the utilance of illuminating light flux; In the application of floodlighting on a large scale, illuminance of ground distribution is comparatively even, achieve thus lamp stand lower zone to the gradual transition of fringe region, guarantee there will not be obvious dark space and speck in field of illumination.
The LED light source that the embodiment of the present invention provides, compared with the lighting adopting secondary light-distribution technique to make in prior art, on the basis of improving luminous flux utilance, once light-distribution technique is adopted to make single LED lamp, technique is comparatively simple, effectively can save cost, reduce the complexity of production operation.
Embodiment three:
The embodiment of the present invention additionally provides a kind of LED light source module comprising multiple above-mentioned LED light source, as shown in figs. 25 and 26, wherein, the structural representation of the LED light source module that Figure 25 provides for the embodiment of the present invention, the structural representation of multiple LED list lamp in the LED light source module that Figure 26 provides for the embodiment of the present invention.As can be seen from Figure 25, in the embodiment of the present invention, multiple LED list lamp is preferably according to certain aligned transfer, as certain quantity and interval.And the reflector arrangement regulation in described LED light source module is consistent with the aligned transfer of LED list lamp, and one_to_one corresponding.
It should be noted that, Figure 25 and 26 is only the structural representation of the LED light source module that the embodiment of the present invention provides, although LED light source module described in Figure 25 and 26 comprises 9 LED light sources, the LED light source module that the embodiment of the present invention provides is not limited in this.
Also it should be noted that, Figure 25 and 26 is only be that bimodal lens are illustrated for described light-distribution lens, but in the LED light source module that the embodiment of the present invention provides, described light-distribution lens can also be hemispherical lens or other light-distribution lens, and the present invention does not limit this.
In a preferred embodiment of the invention, multiple reflectors in described LED light source module are preferably integral structure, thus simplify the manufacture craft of described LED light source module, improve the production efficiency of described LED light source module, reduce the cost of manufacture of described LED light source module.
In sum, the LED light source module that the embodiment of the present invention provides and LED light source thereof, compared with the lighting adopting once light-distribution technique to make in prior art, improve the utilance of luminous flux, and illuminance of ground distribution is comparatively even, make in field of illumination, to there will not be obvious dark space and speck, there is good visual effect.
The LED light source module that the embodiment of the present invention provides and LED light source thereof, compared with the lighting adopting secondary light-distribution technique to make in prior art, on the basis of improving luminous flux utilance, once light-distribution technique is adopted to make single LED lamp, technique is comparatively simple, effectively can save cost, reduce the complexity of production operation.
In this specification, various piece adopts the mode of going forward one by one to describe, and what each some importance illustrated is the difference with other parts, between various piece identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to embodiment illustrated herein, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (16)
1. a LED light source, is characterized in that, comprising:
LED list lamp, described LED list lamp comprises: package support and the luminescence chip, fluorescent glue and the light-distribution lens that are fixed on described package support; Described light-distribution lens is bimodal lens; Described package support comprises the copper post being positioned at its bottom centre, described copper post has notch cuttype groove, described Tong Zhu center comprises the first groove and second groove of two tapers connected, and the center of described first groove and the second groove is on same straight line, namely the first groove being positioned at top and the second groove be positioned at below described first groove, and the cross-sectional area of described first bottom portion of groove is greater than the cross-sectional area of described second groove top; Described luminescence chip is positioned at described second bottom portion of groove center; Described fluorescent glue fills described second groove completely, and wraps up described luminescence chip; Described light-distribution lens fixing with described package support above;
Side wall ring is located at the surrounding of described LED list lamp, the reflector that bottom and described LED list lamp are fixed together, and the C0-180 cross section of described reflector, C90-270 cross section overlap with the C0-180 cross section of described light-distribution lens, C90-270 cross section respectively;
Wherein, the C0-180 cross section profile of described reflector is symmetric form, C90-270 cross section profile is asymmetric, not etc., and the apex height of the C0-180 cross section profile of described reflector is not less than the apex height of its C90-270 cross section profile for two apex height of described reflector C90-270 cross section profile;
Be called C0-180 cross section by the structure of LED light source with the face of C0-180 luminous intensity distribution planes overlapping, be called C90-270 cross section with the face of C90-270 luminous intensity distribution planes overlapping.
2. LED light source according to claim 1, it is characterized in that, the sidewall of described reflector comprises inner surface and outer surface two sides, wherein, from one end that described reflector C90-270 cross section profile apex height is less, the area of each level cross-sectionn of described inner surface is to reducing gradually bottom it.
3. LED light source according to claim 2, is characterized in that, in described reflector C0-180 cross section, the profile of described inner surface is arc or linear; In other each vertical sections comprising described reflector C0-180 cross section and C90-270 cross section common wire, the profile of described inner surface is arc, and the direction in C90-270 cross section is rotated to along described reflector C0-180 cross section, the radius of curvature of described inner surface profile reduces gradually.
4. LED light source according to claim 3, is characterized in that, the C0-180 cross section of described light-distribution lens comprises: the axis that described package support center and described luminescence chip center define, and two of described bimodal lens high points; The C90-270 cross section orthogonal of described light-distribution lens in the C0-180 cross section of described light-distribution lens, and comprises the axis that described package support center and described luminescence chip center define.
5. LED light source according to claim 4, is characterized in that, in described reflector C0-180 cross section, when the profile of described inner surface is linear, the angle in the profile of described inner surface and horizontal direction is 85 °-90 °, comprises endpoint value.
6. LED light source according to claim 5, is characterized in that, the ratio of the described apex height of reflector C90-270 cross section profile and the apex height of its C0-180 cross section profile is 1.5:1-2.5:1, comprises endpoint value.
7. LED light source according to claim 6, is characterized in that, the ratio between described reflector C90-270 cross section profile two apex height is 1.5:1-3.0:1, comprises endpoint value.
8. LED light source according to claim 3, is characterized in that, described light-distribution lens is hemispherical lens, and the C0-180 cross section of described light-distribution lens comprises the axis that described package support center and described luminescence chip center define; The C90-270 cross section orthogonal of described light-distribution lens in the C0-180 cross section of described light-distribution lens, and comprises the axis that described package support center and described luminescence chip center define.
9. LED light source according to claim 8, is characterized in that, in described reflector C0-180 cross section, when the profile of described inner surface is linear, the angle in the profile of described inner surface and horizontal direction is 55 °-75 °, comprises endpoint value.
10. LED light source according to claim 9, is characterized in that, the ratio of the described apex height of reflector C90-270 cross section profile and the apex height of its C0-180 cross section profile is 2.0:1-3.5:1, comprises endpoint value.
11. LED light sources according to claim 10, is characterized in that, the ratio between described reflector C90-270 cross section profile two apex height is 1.5:1-6.0:1, comprises endpoint value.
12. LED light sources according to claim 7 or 11, it is characterized in that, from one end that extremely described reflector C90-270 cross section profile apex height is less, one end that described reflector C90-270 cross section profile apex height is larger, the height of described reflector sidewall reduces or first reduces to increase gradually again.
13. LED light sources according to any one of claim 1-11, it is characterized in that, described reflector inner surface is mirror surface reflecting type or scattered reflection type.
14. LED light sources according to claim 13, is characterized in that, have opening bottom described reflector, and described opening matches with described package support, and the center of described opening overlaps with the bottom center of described package support.
15. 1 kinds of LED light source modules, is characterized in that, comprise multiple claim 1-11 and the LED light source described in 14 any one.
16. light source modules according to claim 15, is characterized in that, the reflector in described multiple LED light source is integrated.
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| CN104566079A (en) * | 2013-10-16 | 2015-04-29 | 佳駩科技股份有限公司 | Lamp |
| CN110726095B (en) * | 2019-10-18 | 2021-12-10 | 上海智光慧芯照明科技有限公司 | LED illumination lamp and street lamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101373048A (en) * | 2008-08-05 | 2009-02-25 | 周广跃 | LED light source structure |
| CN201487718U (en) * | 2009-09-03 | 2010-05-26 | 黄金鹿 | LED street lamp with integrated functions of refraction, reflection and light distribution |
| CN101832499A (en) * | 2010-05-28 | 2010-09-15 | 深圳市日锋电子有限公司 | LED spotlight |
| CN102297384A (en) * | 2010-06-23 | 2011-12-28 | 毛有强 | Integrated LED lamp reflector and integrated LED lamp with same for road/tunnel illumination |
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| CN201779594U (en) * | 2009-10-22 | 2011-03-30 | 上海彩煌光电科技有限公司 | Novel LED (light-emitting diode) tunnel lamp reflection shield |
| US8267553B2 (en) * | 2010-11-01 | 2012-09-18 | Amtai Medical Equipment, Inc. | LED illuminant module for medical luminaires |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101373048A (en) * | 2008-08-05 | 2009-02-25 | 周广跃 | LED light source structure |
| CN201487718U (en) * | 2009-09-03 | 2010-05-26 | 黄金鹿 | LED street lamp with integrated functions of refraction, reflection and light distribution |
| CN101832499A (en) * | 2010-05-28 | 2010-09-15 | 深圳市日锋电子有限公司 | LED spotlight |
| CN102297384A (en) * | 2010-06-23 | 2011-12-28 | 毛有强 | Integrated LED lamp reflector and integrated LED lamp with same for road/tunnel illumination |
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