CN103123058B - Light-emitting diode (LED) light source - Google Patents
Light-emitting diode (LED) light source Download PDFInfo
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- CN103123058B CN103123058B CN201310008008.8A CN201310008008A CN103123058B CN 103123058 B CN103123058 B CN 103123058B CN 201310008008 A CN201310008008 A CN 201310008008A CN 103123058 B CN103123058 B CN 103123058B
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Abstract
The invention discloses a light-emitting diode (LED) light source and a LED light source module formed by a plurality of LED light sources. The LED light source comprises a LED lighting body and a reflector, wherein the reflector is a side wall closed cavity. The structural mode of the LED light source is: a C0-180 section cutaway view outline is a curvilinearfigure outline with the center being the highest point and gradually reducing the height toward the left side and the right side. The C0-180 section cutaway view outline is symmetrical on the left and the right. A C90-270 section cutaway view outline is a curve type outline with the left side or the right side being the highest point and gradually reducing the height toward the other side or first reducing and then heightening. The C90-270 section cutaway view outline is unsymmetrical on the left and the right. A horizontal cross section cutaway view outline of the reflector is a closed curve, and the closed curve is provided with a section or multiple sections of cove arc lines. The LED light source can achieve a plurality of unsymmetrical light distribution, and improves lighting light flux use ratio.
Description
Technical field
The present invention relates to technical field of LED illumination, particularly relate to a kind of LED light source, and the LED light source module of multiple this LED light source composition.
Background technology
LED is easy to realize various forms of luminous intensity distribution, can form corresponding LED light source by once light-distribution technique and secondary light-distribution technique.Once light-distribution technique is in the process making LED list lamp, by lens packages on package support, make itself and luminescence chip, fluorescent glue and package support form one, thus form single LED lamp, common single LED lamp type has direct insertion, SMD, high-power packaged type etc.; Wherein, luminescence chip surface-coated has fluorescent glue, and lens are generally silica-gel lens; This technique is equivalent to disposablely in the process making LED list lamp achieve target luminous intensity distribution form, and therefore, we claim this technique to be once light-distribution technique usually, and the lens adopted are called lens.
Secondary light-distribution technique is another kind of effective light-configuration mode.A kind of conventional technological means carries out luminous intensity distribution design by secondary lens, namely install on the basis making intact single LED lamp independently lens to carry out luminous intensity distribution design, the lens adopted are generally the lens of polymethyl methacrylate (PMMA) material, these lens are independent of outside single LED lamp, be called secondary lens, secondary lens and single LED lamp form optical system jointly, obtain target luminous intensity distribution form.
C-planar system is a kind of conventional measurement and describes the coordinate system of light source or the distribution of light fixture spatial light intensity, and this system can be used in the luminosity measurement of LED light source or light fixture.Measure under C-planar system and describe LED light source or light fixture spatial light intensity distribution, light distribution is generally described by distribution curve flux; Distribution curve flux is under polar coordinate system or rectangular coordinate system, the light intensity value corresponding to all angles in certain the luminous intensity distribution plane marked, and depicts the curve that light intensity value changes with angle; The distribution curve flux that what people generally 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; The angle that we define the left side of 0 degree of angle line in distribution curve flux figure is positive-angle (representing with "+"), the angle on the right side of 0 degree of angle line is negative angle (representing with "-"), distribution curve flux in so each plane can be symmetrical expression (symmetrical relative to 0 degree of angle line), also can be asymmetric (asymmetric relative to 0 degree of angle line left and right).Can the value at reading optical beam angle from distribution curve flux, the beam angle that we define distribution curve flux in certain luminous intensity distribution plane is angle value that the angle value+largest light intensity angle line dextrorotation turned over when largest light intensity angle line is rotated counterclockwise to 50% largest light intensity angle line on beam angle=distribution curve flux turns over when going to the angle line of 50% largest light intensity.In addition, in order to express easily, we are called C0-C180 cross section by LED light source structure with the face of C0-C180 luminous intensity distribution planes overlapping, are called C90-C270 cross section with the face of C90-C270 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.
For street lighting, common car lane is arranged as 2 tracks, track to 8, some street also comprises central partition, greenbelt etc., common lamp stand spread pattern has one-sided arrangement, Bilateral Symmetry arrangement, bilateral to be staggered, the ratio of lamp stand spacing and pole height is generally 3 to 5, and the lamp stand cantilever elevation angle is 0 degree to 15 degree; There are wider bicycle lane and the street on pavement for some, symmetrical on a lamp stand two street lamps can be installed, irradiate car lane direction and bicycle lane direction respectively.In prior art, a kind of luminous intensity distribution form of LED street lamp, or be called that symmetric form batswing tab luminous intensity distribution form is: in C0-C180 plane (on corresponding road travel direction), its distribution curve flux is bat aerofoil profile, in C90-C270 plane (on corresponding road width direction), its distribution curve flux is symmetrical approximate ellipsoidal or approximate cone-shape.A kind of once light-distribution technique for making road lighting LED light source is in the process making single LED lamp, by bimodal lens or multimodal lens packages on package support, make itself and luminescence chip, fluorescent glue and package support form one, become single LED lamp, and realize target luminous intensity distribution; Lens are generally the lens of silica gel material, and two or more high point is arranged at its front profile top, is similar to the shape at two peaks or multiple peak.Being adopt the single LED lamp of lambert's type luminous intensity distribution of beam angle about 120 degree to add bimodal pattern or a multimodal secondary lens for making the secondary light-distribution technique of road lighting LED light source, carrying out realize target luminous intensity distribution; Lens are generally the lens of polymethyl methacrylate (PMMA) material, and two or more high point is arranged at its front profile top, is similar to the shape at two peaks or multiple peak.The luminous intensity distribution form that above two kinds of luminous intensity distribution techniques obtain is symmetric form batswing tab luminous intensity distribution, that is: C0-180 distribution curve flux is symmetrical bat aerofoil profile, C90-270 distribution curve flux is symmetrical approximate ellipsoidal or approximate cone-shape, but street lighting is applied, this luminous intensity distribution form is also unreasonable, especially for car lane, this luminous intensity distribution form is lower than the illuminating light flux utilance of asymmetric batswing tab luminous intensity distribution.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of LED light source, comprise LED illuminator and reflector, according to the difference of LED illuminator type, this LED light source can realize multiple asymmetric luminous intensity distribution, especially can realize the asymmetric batswing tab luminous intensity distribution being reasonably suitable for street lighting.
For achieving the above object, the present invention adopts following technical scheme:
A kind of LED light source, comprising: LED illuminator, reflector, and wherein reflector is the cavity that sidewall is closed, and its level cross-sectionn cutaway view profile is closed curve, and closed curve has the camber line of at least one section of indent.
The C0-180 cross section map contour of described reflector to be centre be peak the curved profile that reduces gradually of both sides height to the left and right, and C0-180 cross section map contour is symmetrical.
The C90-270 cross section map contour of described reflector is any one in following two types:
Type one: the C90-270 cross section map contour of described reflector is that left and right wherein side has peak and the curved profile reduced gradually to opposite side height, and C90-270 cross section profile is that left and right is asymmetrical.
Type two: the C90-270 cross section map contour of described reflector is that left and right wherein side has peak and first reduces the curved profile increased afterwards to opposite side height, and C90-270 cross section profile is that left and right is asymmetrical.
The subjacent of described reflector has reflector substrate, can be regulated the basal surface position height of reflector by the height change of reflector substrate, and the bottom of reflector substrate has groove to match with LED illuminator.
Described LED illuminator is any one in following two types:
Type one: described LED illuminator is the single LED lamp with multimodal lens or bimodal pattern lens or hemispherical lens or other version lens made by once light-distribution technique.
Type two: described LED illuminator is the assembly that the single LED lamp made by secondary light-distribution technique adds secondary lens, wherein secondary lens is the lens of multimodal lens or bimodal pattern lens or hemispherical lens or other versions.
A kind of LED light source module, is made up of the array of the above LED light source, comprises LED illuminator module, reflector module.
Compared with prior art, technique scheme has the following advantages:
LED light source provided by the present invention can realize the asymmetric batswing tab luminous intensity distribution being reasonably suitable for street lighting, i.e.: in C0-C180 plane (on corresponding road travel direction), its distribution curve flux is bat aerofoil profile, beam angle is 140 degree to 150 degree, and the angle corresponding to largest light intensity value is ± 60 degree to ± 65 degree; In C90-C270 plane (on corresponding road width direction), its distribution curve flux is asymmetric, specifically beam angle is 60 degree to 100 degree, angle corresponding to largest light intensity value is that+10 degree are to+45 degree, in C90-C270 plane, the light intensity of each angle in distribution curve flux positive-angle side is greater than the light intensity at equal negative angle place, also just make light more lead illumination value direction, reduce unnecessary ray waste.Compared with symmetric form batswing tab luminous intensity distribution, in street lighting application, especially for the illumination of car lane, can effectively improve illuminating light flux utilance.
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 illuminator that Fig. 1 provides for the embodiment of the present invention one, two, six;
The STRUCTURE DECOMPOSITION schematic diagram of the LED illuminator that Fig. 2 provides for the embodiment of the present invention one, two, six;
The front view of the LED illuminator that Fig. 3 provides for the embodiment of the present invention one, two;
The structural representation of the LED light source 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 level cross-sectionn cutaway view of the reflector 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 cutaway view in the C90-270 cross section of the reflector that Fig. 8 (1) provides for the embodiment of the present invention one;
Both sides, the C90-270 cross section difference in height of the reflector that Fig. 8 (2) provides for the embodiment of the present invention one affects schematic diagram to C90-270 curve largest light intensity value;
The structural representation of the LED light source that Fig. 9 provides for the embodiment of the present invention two;
The STRUCTURE DECOMPOSITION schematic diagram of the LED light source that Figure 10 provides for the embodiment of the present invention two;
The level cross-sectionn cutaway view of the reflector that Figure 11 provides for the embodiment of the present invention two;
The cutaway view in the C0-180 cross section of the reflector that Figure 12 provides for the embodiment of the present invention two;
The cutaway view in the C90-270 cross section of the reflector that Figure 13 provides for the embodiment of the present invention two;
The structural representation of the LED illuminator that Figure 14 provides for the embodiment of the present invention three;
The STRUCTURE DECOMPOSITION schematic diagram of the LED illuminator that Figure 15 provides for the embodiment of the present invention three;
The front view of the LED illuminator that Figure 16 provides for the embodiment of the present invention three;
The structural representation of the LED light source that Figure 17 provides for the embodiment of the present invention three;
The STRUCTURE DECOMPOSITION schematic diagram of the LED light source that Figure 18 provides for the embodiment of the present invention three;
The level cross-sectionn cutaway view of the reflector that Figure 19 provides for the embodiment of the present invention three;
The cutaway view in the C0-180 cross section of the reflector that Figure 20 provides for the embodiment of the present invention three;
The cutaway view in the C90-270 cross section of the reflector that Figure 21 provides for the embodiment of the present invention three;
Figure 22 is the light key diagram of LED light source in prior art;
The light key diagram of the LED light source that Figure 23 provides for the embodiment of the present invention one, two, three;
The distribution curve flux schematic diagram of the LED illuminator that Figure 24 (1) provides for the embodiment of the present invention one, two, three;
The distribution curve flux schematic diagram of the LED light source that Figure 24 (2) provides for the embodiment of the present invention one, two, three;
The illumination equiluminous gray-scale figure of the LED illuminator that Figure 25 (1) provides for the embodiment of the present invention one, two, three;
The illumination equiluminous gray-scale figure of the LED light source that Figure 25 (2) provides for the embodiment of the present invention one, two, three;
The structural representation of the LED illuminator that Figure 26 provides for the embodiment of the present invention four;
The STRUCTURE DECOMPOSITION schematic diagram of the LED illuminator that Figure 27 provides for the embodiment of the present invention four;
The structural representation of the LED light source that Figure 28 provides for the embodiment of the present invention four;
The STRUCTURE DECOMPOSITION schematic diagram of the LED light source that Figure 29 provides for the embodiment of the present invention four;
The distribution curve flux schematic diagram of the LED illuminator that Figure 30 provides for the embodiment of the present invention four;
The distribution curve flux schematic diagram of the LED light source that Figure 31 provides for the embodiment of the present invention four;
The structural representation of the LED illuminator that Figure 32 provides for the embodiment of the present invention five;
The STRUCTURE DECOMPOSITION schematic diagram of the LED illuminator that Figure 33 provides for the embodiment of the present invention five;
The front view of the LED illuminator that Figure 34 provides for the embodiment of the present invention five;
The structural representation of the LED light source that Figure 35 provides for the embodiment of the present invention five;
The STRUCTURE DECOMPOSITION schematic diagram of the LED light source that Figure 36 provides for the embodiment of the present invention five;
The distribution curve flux schematic diagram of the LED illuminator that Figure 37 provides for the embodiment of the present invention five;
The distribution curve flux schematic diagram of the LED light source that Figure 38 provides for the embodiment of the present invention five;
The structural representation of the LED light source that Figure 39 provides for the embodiment of the present invention six;
The STRUCTURE DECOMPOSITION schematic diagram of the LED light source that Figure 40 provides for the embodiment of the present invention six;
The level cross-sectionn cutaway view of the reflector that Figure 41 provides for the embodiment of the present invention six;
The cutaway view in the C0-180 cross section of the reflector that Figure 42 provides for the embodiment of the present invention six;
The cutaway view in the C90-270 cross section of the reflector that Figure 43 provides for the embodiment of the present invention six;
The distribution curve flux schematic diagram of the LED light source that Figure 44 provides for the embodiment of the present invention six;
The structural representation of the LED light source that Figure 45 provides for the embodiment of the present invention seven;
The STRUCTURE DECOMPOSITION schematic diagram of the LED light source that Figure 46 provides for the embodiment of the present invention seven;
The level cross-sectionn cutaway view of the reflector that Figure 47 provides for the embodiment of the present invention seven;
The cutaway view in the C0-180 cross section of the reflector that Figure 48 provides for the embodiment of the present invention seven;
The cutaway view in the C90-270 cross section of the reflector that Figure 49 provides for the embodiment of the present invention seven;
The distribution curve flux schematic diagram of the LED light source that Figure 50 provides for the embodiment of the present invention seven;
Figure 51 is combined into the structural representation of LED light source module for LED light source that the embodiment of the present invention one provides;
Figure 52 is combined into the STRUCTURE DECOMPOSITION figure of LED light source module for LED light source that the embodiment of the present invention one provides;
Figure 53 is combined into the structural representation of LED light source module for LED light source that the embodiment of the present invention three provides;
Figure 54 is combined into the STRUCTURE DECOMPOSITION figure of LED light source module for LED light source that the embodiment of the present invention three provides;
There is shown: the mono-lamp of 1-LED luminous element, 10-LED, 11-package support, 12-multimodal lens, 13-luminescence chip, 14-fluorescent glue, 15-cylindrical base, 16-package substrates, 17-fluorescent powder, 18-packaged lens, the bimodal lens of 19-, 2-reflector, 21-reflector substrate, 3-C0-180 cross section, 4-C90-270 cross section, 5-LED luminous element module, 6-reflector module, 7-LED light source module.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Set forth a lot of detail in the following description so that fully understand the present invention, but the present invention can also adopt other to be different from alternate manner described here to implement, those skilled in the art can when without prejudice to doing similar popularization when intension of the present invention, therefore the present invention is by the restriction of following public specific embodiment.
Secondly, the present invention is described in detail in conjunction with schematic diagram, when describing the embodiment of the present invention in detail; for ease of explanation; represent that the profile of device architecture can be disobeyed general ratio and be made partial enlargement, and described schematic diagram is example, it should not limit the scope of protection of the invention at this.In addition, the three-dimensional space of length, width and height should be comprised in actual fabrication.
Embodiment one:
With reference to figure 1, Fig. 2, Fig. 3, the structural representation of the LED illuminator that Fig. 1 provides for the embodiment of the present invention one, two, six, the STRUCTURE DECOMPOSITION schematic diagram of the LED illuminator that Fig. 2 provides for the embodiment of the present invention one, two, six, the front view of the LED illuminator that Fig. 3 provides for the embodiment of the present invention one, two, six.As can be seen from the figure, described LED illuminator 1 is the single LED lamp by once light-distribution technique with multimodal lens 12, is made up of package support 11, multimodal lens 12, luminescence chip 13, fluorescent glue 14.Package support 11 center is cylindrical base 15, and luminescence chip 13 is positioned at cylindrical base 15 upper surface center, and fluorescent glue 14 is coated on cylindrical base 15 upper surface and wraps up luminescence chip 13; From front view, the profile top of multimodal lens 12 presents multiple high point, and multimodal lens 12 are fixed on above package support 11, jointly forms LED illuminator 1 with package support 11, fluorescent glue 14, luminescence chip 13.
With reference to the structural representation of the LED light source that figure 4, Fig. 5, Fig. 4 provide 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; As can be seen from the figure, the LED light source that the embodiment of the present invention one provides comprises: LED illuminator 1, reflector 2, reflector substrate 21; The sidewall closed housing of reflector 2 surrounds LED illuminator 1, and have a perforate bottom reflector substrate 21 and coordinate with package support 11, the center of reflector substrate 21 bottom opening overlaps with package support 11 bottom center; The C0-180 cross section 3 of multimodal lens 12 overlaps with the C0-180 cross section 3 of reflector 2, and the C90-270 cross section 4 of multimodal lens 12 overlaps with the C90-270 cross section 4 of reflector 2; Wherein, C0-180 cross section 3 comprises the axis defined by the central point of reflector substrate 21 bottom opening and package support 11 bottom center's point, and comprises the multiple high point at multimodal lens 12 top; C90-270 cross section 4 is vertical with C0-180 cross section 3, and comprises the axis defined by the central point of reflector substrate 21 bottom opening and package support 11 bottom center's point.
With reference to figure 6, Fig. 7, Fig. 8, the level cross-sectionn cutaway view of the reflector 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 cutaway view in the C90-270 cross section of the reflector that Fig. 8 (1) provides for the embodiment of the present invention one, both sides, the C90-270 cross section difference in height of the reflector that Fig. 8 (2) provides for the embodiment of the present invention one affects schematic diagram to C90-270 curve largest light intensity value, as can be seen from the figure, in the LED light source that the embodiment of the present invention one provides, described reflector 2 is cavitys that sidewall is closed, its level cross-sectionn cutaway view profile is closed curve, and the upper end of closed curve, there is the camber line of one section of indent lower end, the C0-180 cross section 3 cutaway view profile of reflector 2 to be centre be peak the curved profile that reduces gradually of both sides height to the left and right, C0-180 cross section 3 cutaway view profile is symmetrical, the C90-270 cross section 4 cutaway view profile of reflector is left, there is peak right wherein side first reduces the curved profile increased afterwards to opposite side height, C90-270 cross section 4 cutaway view profile is that left and right is asymmetrical, the difference in height of the cutaway view profile left and right sides, C90-270 cross section 4 is larger, and by reflection, the effect of the side that light deflection is highly low is more obvious, is then presented as that the largest light intensity value of C90-270 curve is larger in distribution curve flux.
The surface treatment of described reflector 2 is vacuum aluminum-coated, Huo Du Chrome or the smooth surface such as silver-plated, is mirror surface reflecting type surface, also can be treated to the white high lac varnish of spray or the diffuse surface of sub-gloss varnish or the mixed reflection face with certain minute surface degree.
Embodiment two:
With reference to the structural representation of the LED light source that figure 9, Figure 10, Fig. 9 provide for the embodiment of the present invention two, the STRUCTURE DECOMPOSITION schematic diagram of the LED light source that Figure 10 provides for the embodiment of the present invention two; As can be seen from the figure, the LED light source that the embodiment of the present invention two provides comprises: LED illuminator 1, reflector 2, reflector substrate 21; The sidewall closed housing of reflector 2 surrounds LED illuminator 1, and have a perforate bottom reflector substrate 21 and coordinate with package support 11, the center of reflector substrate 21 bottom opening overlaps with package support 11 bottom center; The C0-180 cross section 3 of multimodal lens 12 overlaps with the C0-180 cross section 3 of reflector 2, and the C90-270 cross section 4 of multimodal lens 12 overlaps with the C90-270 cross section 4 of reflector 2; Wherein, C0-180 cross section 3 comprises the axis defined by the central point of reflector substrate 21 bottom opening and package support 11 bottom center's point, and comprises the multiple high point at multimodal lens 12 top; C90-270 cross section 4 is vertical with C0-180 cross section 3, and comprises the axis defined by the central point of reflector substrate 21 bottom opening and package support 11 bottom center's point.
With reference to Figure 11, Figure 12, Figure 13, the level cross-sectionn cutaway view of the reflector that Figure 11 provides for the embodiment of the present invention two, the cutaway view in the C0-180 cross section of the reflector that Figure 12 provides for the embodiment of the present invention two, the cutaway view in the C90-270 cross section of the reflector that Figure 13 provides for the embodiment of the present invention two, as can be seen from the figure, in the LED light source that the embodiment of the present invention two provides, described reflector 2 is cavitys that sidewall is closed, its level cross-sectionn cutaway view profile is closed curve, and there is the camber line of three sections of indents the upper end of closed curve, there is the camber line of one section of indent profile lower end, the C0-180 cross section 3 cutaway view profile of reflector 2 to be centre be peak the curved profile that reduces gradually of both sides height to the left and right, C0-180 cross section 3 cutaway view profile is symmetrical, the C90-270 cross section 4 cutaway view profile of reflector is left, there is peak right wherein side the curved profile reduced gradually to opposite side height, C90-270 cross section 4 cutaway view profile is that left and right is asymmetrical, the surface treatment of described reflector 2 is vacuum aluminum-coated, Huo Du Chrome or the smooth surface such as silver-plated, is mirror surface reflecting type surface, also can be treated to the white high lac varnish of spray or the diffuse surface of sub-gloss varnish or the mixed reflection face with certain minute surface degree.
Embodiment three:
With reference to Figure 14, Figure 15, Figure 16, the structural representation of the LED illuminator that Figure 14 provides for the embodiment of the present invention three, the STRUCTURE DECOMPOSITION schematic diagram of the LED illuminator that Figure 15 provides for the embodiment of the present invention three, the front view of the LED illuminator that Figure 16 provides for the embodiment of the present invention three.As can be seen from the figure, described LED illuminator 1 is the single LED lamp by once light-distribution technique with multimodal lens 12, is made up of package substrates 16, multimodal lens 12, luminescence chip 13, fluorescent powder 17; Luminescence chip 13 is positioned at package substrates 16 upper surface center, and fluorescent powder 17 is attached to the upper surface of described package substrates 16 and wraps up luminescence chip 13; From front view, the profile top of multimodal lens 12 presents multiple high point, and multimodal lens 12 are fixed on above package substrates 16, jointly forms LED illuminator 1 with package substrates 16, fluorescent powder 17, luminescence chip 13.
With reference to Figure 17, Figure 18, the structural representation of the LED light source that Figure 17 provides for the embodiment of the present invention three, the STRUCTURE DECOMPOSITION schematic diagram of the LED light source that Figure 18 provides for the embodiment of the present invention three; As can be seen from the figure, the LED light source that the embodiment of the present invention three provides comprises: LED illuminator 1, reflector 2, reflector substrate 21; The sidewall closed housing of reflector 2 surrounds LED illuminator 1, and have a perforate bottom reflector substrate 21 and coordinate with package substrates 16, the center of reflector substrate 21 bottom opening overlaps with package substrates 16 bottom center; The C0-180 cross section 3 of multimodal lens 12 overlaps with the C0-180 cross section 3 of reflector 2, and the C90-270 cross section 4 of multimodal lens 12 overlaps with the C90-270 cross section 4 of reflector 2; Wherein, C0-180 cross section 3 comprises the axis defined by the central point of reflector substrate 21 bottom opening and package substrates 16 bottom center's point, and comprises the multiple high point at multimodal lens 12 top; C90-270 cross section 4 is vertical with C0-180 cross section 3, and comprises the axis defined by the central point of reflector substrate 21 bottom opening and package substrates 16 bottom center's point.
With reference to Figure 19, Figure 20, Figure 21, the level cross-sectionn cutaway view of the reflector that Figure 19 provides for the embodiment of the present invention three, the cutaway view in the C0-180 cross section of the reflector that Figure 20 provides for the embodiment of the present invention three, the cutaway view in the C90-270 cross section of the reflector that Figure 21 provides for the embodiment of the present invention three, as can be seen from the figure, in the LED light source that the embodiment of the present invention three provides, described reflector 2 is cavitys that sidewall is closed, its level cross-sectionn cutaway view profile is closed curve, and the upper end of closed curve, respectively there is the camber line of one section of indent lower end, the C0-180 cross section 3 cutaway view profile of reflector 2 to be centre be peak the curved profile that reduces gradually of both sides height to the left and right, C0-180 cross section 3 cutaway view profile is symmetrical, the C90-270 cross section 4 cutaway view profile of reflector is left, there is peak right wherein side the curved profile reduced gradually to opposite side height, C90-270 cross section 4 cutaway view profile is that left and right is asymmetrical, the surface treatment of described reflector 2 is vacuum aluminum-coated, Huo Du Chrome or the smooth surface such as silver-plated, is mirror surface reflecting type surface, also can be treated to the white high lac varnish of spray or the diffuse surface of sub-gloss varnish or the mixed reflection face with certain minute surface degree.
With reference to Figure 22, Figure 23, Figure 22 is the light key diagram of LED light source in prior art; The light key diagram of the LED light source that Figure 23 provides for the embodiment of the present invention one, two, three; As shown in figure 23, in the present invention, indent arc in reflector, disperses the reflecting effect of light, is different from arc shown in Figure 22 (be convergent effect to light); In the present invention, light is dispersed after indent arc area is reflected, as in embodiment one, two, three, upper and lower two sections of indent arc reflecting effects, light is made more to diffuse to region, the left and right sides, be embodied in distribution curve flux, enhance the trend that C0-180 distribution curve flux pulls open to wide-angle direction, both sides, namely the light intensity of wide-angle region is enhanced, be reflected to real road illumination application, namely enhance the trend that light pulls open toward both sides along road travel direction, or strengthen the effect of light uniform irradiation within the scope of road surface.
With reference to Figure 24, Figure 25, the distribution curve flux schematic diagram of the LED illuminator that Figure 24 (1) provides for the embodiment of the present invention one, two, three, the distribution curve flux schematic diagram of the LED light source that Figure 24 (2) provides for the embodiment of the present invention one, two, three, the illumination equiluminous gray-scale figure of the LED illuminator that Figure 25 (1) provides for the embodiment of the present invention one, two, three, the illumination equiluminous gray-scale figure of the LED light source that Figure 25 (2) provides for the embodiment of the present invention one, two, three; As can be seen from Figure 24 (1), in the LED light source that the embodiment of the present invention one, two, three provides, the luminous intensity distribution form of described LED illuminator 1 is: in C0-C180 plane, distribution curve flux is bat aerofoil profile, and beam angle is about 140, the angle corresponding to largest light intensity value is about ± and 57 degree; In C90-C270 plane, distribution curve flux is symmetrical approximate ellipsoidal, and beam angle is about 130 degree; As can be seen from Figure 24 (2), the luminous intensity distribution form of the LED light source that the embodiment of the present invention one, two, three provides is: in C0-C180 plane, distribution curve flux is bat aerofoil profile, beam angle is about 150 degree, angle corresponding to largest light intensity value is about ± and 63 degree, in C90-C270 plane, distribution curve flux is asymmetric, beam angle is about 100 degree, and largest light intensity angle is about+40 degree; The meaning of distribution curve flux shown in Figure 24 (2) is that light is more led the direction of illumination value, i.e. car lane direction, ensure that there is certain illuminance in bicycle lane and region, pavement, reduce unnecessary ray waste simultaneously, improve illuminating light flux utilance; Shown in Figure 25 is at the square region center of length 50 meters, wide 50 meters, when LED light source setting height(from bottom) is 7 meters, brightness value (unit the is lx) distribution situation on ground, brightness value distribution equiluminous gray-scale figure represents, the light and shade transition of GTG indicates the high-low transition of brightness value, as can be seen from the figure, the hot spot of the LED light source that the embodiment of the present invention one, two, three provides is partial to certain side, this demonstrates light can more lead illumination value direction.
Embodiment four:
With reference to Figure 26, Figure 27, the structural representation of the LED illuminator that Figure 26 provides for the embodiment of the present invention four, the STRUCTURE DECOMPOSITION schematic diagram of the LED illuminator that Figure 27 provides for the embodiment of the present invention four; As can be seen from the figure, described LED illuminator 1 is the single LED lamp by once light-distribution technique with packaged lens 18, is made up of package support 11, packaged lens 18, luminescence chip 13, fluorescent glue 14.Package support 11 center is cylindrical base 15, and luminescence chip 13 is positioned at cylindrical base 15 upper surface center, and fluorescent glue 14 is coated on cylindrical base 15 upper surface and wraps up luminescence chip 13; Packaged lens 18 is fixed on above package support 11, jointly forms LED illuminator 1 with package support 11, fluorescent glue 14, luminescence chip 13.
With reference to Figure 28, Figure 29, the structural representation of the LED light source that Figure 28 provides for the embodiment of the present invention four, the STRUCTURE DECOMPOSITION schematic diagram of the LED light source that Figure 29 provides for the embodiment of the present invention four; As can be seen from the figure, the LED light source that the embodiment of the present invention four provides comprises: LED illuminator 1, reflector 2, reflector substrate 21; The sidewall closed housing of reflector 2 surrounds LED illuminator 1, and have a perforate bottom reflector substrate 21 and coordinate with package support 11, the center of reflector substrate 21 bottom opening overlaps with package support 11 bottom center.Wherein, the structural principle of reflector 2 is identical with described in embodiment three.
With reference to the distribution curve flux schematic diagram of the LED illuminator that Figure 30, Figure 31, Figure 30 provide for the embodiment of the present invention four, the distribution curve flux schematic diagram of the LED light source that Figure 31 provides for the embodiment of the present invention four; As can be seen from Figure 30, in the LED light source that the embodiment of the present invention four provides, the luminous intensity distribution form of described LED illuminator 1 is: C0-180 distribution curve flux overlaps with C90-270 distribution curve flux, is all sub-circular or elliptic curve that beam angle is about 120 degree; As can be seen from Figure 31, the luminous intensity distribution form of the LED light source that the embodiment of the present invention four provides is: in C0-C180 plane, distribution curve flux is bat aerofoil profile, beam angle is about 150 degree, angle corresponding to largest light intensity value is about ± and 65 degree, in C90-C270 plane, distribution curve flux is asymmetric, and beam angle is about 100 degree.
Embodiment five:
With reference to Figure 32, Figure 33, Figure 34, the structural representation of the LED illuminator that Figure 32 provides for the embodiment of the present invention five, the STRUCTURE DECOMPOSITION schematic diagram of the LED illuminator that Figure 33 provides for the embodiment of the present invention five, the front view of the LED illuminator that Figure 34 provides for the embodiment of the present invention five; As can be seen from the figure, described LED illuminator 1 is single LED lamp 10 and the assembly of bimodal lens 19, and wherein bimodal lens 19 are secondary lens, namely bimodal lens 19 be independent of single LED lamp 10 outside parts; From front view, the profile top of bimodal lens 19 presents two high points.
With reference to Figure 35, Figure 36, the structural representation of the LED light source that Figure 35 provides for the embodiment of the present invention five, the STRUCTURE DECOMPOSITION schematic diagram of the LED light source that Figure 36 provides for the embodiment of the present invention five; As can be seen from the figure, the LED light source that the embodiment of the present invention five provides comprises: LED illuminator 1, reflector 2, reflector substrate 21; The sidewall closed housing of reflector 2 surrounds LED illuminator 1, and have a perforate bottom reflector substrate 21 and coordinate with package support 11, the center of reflector substrate 21 bottom opening overlaps with package support 11 bottom center; The C0-180 cross section 3 of bimodal lens 19 overlaps with the C0-180 cross section 3 of reflector 2, and the C90-270 cross section 4 of bimodal lens 19 overlaps with the C90-270 cross section 4 of reflector 2; Wherein, C0-180 cross section 3 comprises the axis defined by the central point of reflector substrate 21 bottom opening and package support 11 bottom center's point, and comprises two high points at bimodal lens 19 top; C90-270 cross section 4 is vertical with C0-180 cross section 3, and comprises the axis defined by the central point of reflector substrate 21 bottom opening and package support 11 bottom center's point.Wherein, the structural principle of reflector 2 is identical with described in embodiment three.
With reference to Figure 37, Figure 38, the distribution curve flux schematic diagram of the LED illuminator that Figure 37 provides for the embodiment of the present invention five, the distribution curve flux schematic diagram of the LED light source that Figure 38 provides for the embodiment of the present invention five; As can be seen from Figure 37, in the LED light source that the embodiment of the present invention five provides, the luminous intensity distribution form of described LED illuminator 1 is: in C0-C180 plane, distribution curve flux is bat aerofoil profile, beam angle is about 150 degree, angle corresponding to largest light intensity value is about ± and 58 degree, in C90-C270 plane, distribution curve flux is approximate ellipsoidal, and beam angle is about 110 degree; As can be seen from Figure 38, the luminous intensity distribution form of the LED light source that the embodiment of the present invention five provides is: in C0-C180 plane, distribution curve flux is bat aerofoil profile, beam angle is about 150 degree, angle corresponding to largest light intensity value is about ± and 63 degree, in C90-C270 plane, distribution curve flux is asymmetric, and beam angle is about 100 degree.
Embodiment six:
With reference to Figure 39, Figure 40, the structural representation of the LED light source that Figure 39 provides for the embodiment of the present invention six, the STRUCTURE DECOMPOSITION schematic diagram of the LED light source that Figure 40 provides for the embodiment of the present invention six; As can be seen from the figure, the LED light source that the embodiment of the present invention six provides comprises: LED illuminator 1, reflector 2, reflector substrate 21; The sidewall closed housing of reflector 2 surrounds LED illuminator 1, and have a perforate bottom reflector substrate 21 and coordinate with package support 11, the center of reflector substrate 21 bottom opening overlaps with package support 11 bottom center; The C0-180 cross section 3 of multimodal lens 12 overlaps with the C0-180 cross section 3 of reflector 2, and the C90-270 cross section 4 of multimodal lens 12 overlaps with the C90-270 cross section 4 of reflector 2; Wherein, C0-180 cross section 3 comprises the axis defined by the central point of reflector substrate 21 bottom opening and package support 11 bottom center's point, and comprises the multiple high point at multimodal lens 12 top; C90-270 cross section 4 is vertical with C0-180 cross section 3, and comprises the axis defined by the central point of reflector substrate 21 bottom opening and package support 11 bottom center's point.
With reference to Figure 41, Figure 42, Figure 43, the level cross-sectionn cutaway view of the reflector that Figure 41 provides for the embodiment of the present invention six, the cutaway view in the C0-180 cross section of the reflector that Figure 42 provides for the embodiment of the present invention six, the cutaway view in the C90-270 cross section of the reflector that Figure 43 provides for the embodiment of the present invention six, as can be seen from the figure, in the LED light source that the embodiment of the present invention six provides, described reflector 2 is cavitys that sidewall is closed, its level cross-sectionn cutaway view profile is closed curve, and the upper end of closed curve, lower end, left side, there is the camber line of one section of indent on right side, the C0-180 cross section 3 cutaway view profile of reflector 2 to be centre be peak the curved profile that reduces gradually of both sides height to the left and right, C0-180 cross section 3 cutaway view profile is symmetrical, the C90-270 cross section 4 cutaway view profile of reflector is left, there is peak right wherein side the curved profile reduced gradually to opposite side height, C90-270 cross section 4 cutaway view profile is that left and right is asymmetrical, the surface treatment of described reflector 2 is vacuum aluminum-coated, Huo Du Chrome or the smooth surface such as silver-plated, is mirror surface reflecting type surface, also can be treated to the white high lac varnish of spray or the diffuse surface of sub-gloss varnish or the mixed reflection face with certain minute surface degree.
With reference to the distribution curve flux schematic diagram of the LED light source that Figure 44, Figure 44 provide for the embodiment of the present invention six; As can be seen from Figure 44, the luminous intensity distribution form of the LED light source that the embodiment of the present invention six provides is: in C0-C180 plane, distribution curve flux is bat aerofoil profile, beam angle is about 130 degree, angle corresponding to largest light intensity value is about ± and 50 degree, in C90-C270 plane, distribution curve flux is asymmetric, and beam angle is about 100 degree.
Embodiment seven:
With reference to Figure 45, Figure 46, the structural representation of the LED light source that Figure 45 provides for the embodiment of the present invention seven, the STRUCTURE DECOMPOSITION schematic diagram of the LED light source that Figure 46 provides for the embodiment of the present invention seven; As can be seen from the figure, the LED light source that the embodiment of the present invention seven provides comprises: LED illuminator 1, reflector 2, reflector substrate 21; The sidewall closed housing of reflector 2 surrounds LED illuminator 1, and have a perforate bottom reflector substrate 21 and coordinate with package support 11, the center of reflector substrate 21 bottom opening overlaps with package support 11 bottom center; The C0-180 cross section 3 of multimodal lens 12 overlaps with the C0-180 cross section 3 of reflector 2, and the C90-270 cross section 4 of multimodal lens 12 overlaps with the C90-270 cross section 4 of reflector 2; Wherein, C0-180 cross section 3 comprises the axis defined by the central point of reflector substrate 21 bottom opening and package support 11 bottom center's point, and comprises the multiple high point at multimodal lens 12 top; C90-270 cross section 4 is vertical with C0-180 cross section 3, and comprises the axis defined by the central point of reflector substrate 21 bottom opening and package support 11 bottom center's point.
With reference to Figure 47, Figure 48, Figure 49, the level cross-sectionn cutaway view of the reflector that Figure 47 provides for the embodiment of the present invention seven, the cutaway view in the C0-180 cross section of the reflector that Figure 48 provides for the embodiment of the present invention seven, the cutaway view in the C90-270 cross section of the reflector that Figure 49 provides for the embodiment of the present invention seven, as can be seen from the figure, in the LED light source that the embodiment of the present invention seven provides, described reflector 2 is cavitys that sidewall is closed, its level cross-sectionn cutaway view profile is closed curve, and there is the camber line of one section of indent the upper end of closed curve, the C0-180 cross section 3 cutaway view profile of reflector 2 to be centre be peak the curved profile that reduces gradually of both sides height to the left and right, C0-180 cross section 3 cutaway view profile is symmetrical, the C90-270 cross section 4 cutaway view profile of reflector is left, there is peak right wherein side the curved profile reduced gradually to opposite side height, C90-270 cross section 4 cutaway view profile is that left and right is asymmetrical, the surface treatment of described reflector 2 is vacuum aluminum-coated, Huo Du Chrome or the smooth surface such as silver-plated, is mirror surface reflecting type surface, also can be treated to the white high lac varnish of spray or the diffuse surface of sub-gloss varnish or the mixed reflection face with certain minute surface degree.
With reference to the distribution curve flux schematic diagram of the LED light source that Figure 50, Figure 50 provide for the embodiment of the present invention seven; As can be seen from Figure 50, the luminous intensity distribution form of the LED light source that the embodiment of the present invention seven provides is: in C0-180 luminous intensity distribution plane, distribution curve flux is bat aerofoil profile, beam angle is about 140 degree, angle corresponding to largest light intensity is+-58 degree, in C90-270 luminous intensity distribution plane, distribution curve flux is asymmetric, and beam angle is about 105 degree.
The further optimization of the embodiment of the present invention:
The LED light source provided for the embodiment of the present invention one with reference to Figure 51,52, Figure 51 is combined into the structural representation of LED light source module; Figure 52 is combined into the STRUCTURE DECOMPOSITION figure of LED light source module for LED light source that the embodiment of the present invention one provides.As can be seen from the figure, multiple identical LED illuminator 1, according to certain aligned transfer, as certain quantity and interval, namely becomes LED illuminator module 5; Multiple identical reflector 2 unit can link into an integrated entity, and is processed into integrated mould, namely becomes reflector module 6; If the arrangement regulation of reflector 2 unit in reflector module 6, as element number, unit interval, consistent with the arrangement regulation of LED illuminator 1 in LED illuminator module 5, and the corresponding LEDs luminous element 1 of each reflector 2 unit, so LED illuminator module 5 LED light source consisting module 7 common with reflector module 6; LED light source module 7 can be regarded as and to be made up of multiple described LED light source array.
The LED light source provided for the embodiment of the present invention three with reference to Figure 53,54, Figure 53 is combined into the structural representation of LED light source module; Figure 54 is combined into the STRUCTURE DECOMPOSITION figure of LED light source module for LED light source that the embodiment of the present invention three provides.As can be seen from the figure, multiple identical LED illuminator 1, according to certain aligned transfer, as certain quantity and interval, namely becomes LED illuminator module 5; Multiple identical reflector 2 unit can link into an integrated entity, and is processed into integrated mould, namely becomes reflector module 6; If the arrangement regulation of reflector 2 unit in reflector module 6, as element number, unit interval, consistent with the arrangement regulation of LED illuminator 1 in LED illuminator module 5, and the corresponding LEDs luminous element 1 of each reflector 2 unit, so LED illuminator module 5 LED light source consisting module 7 common with reflector module 6; LED light source module 7 can be regarded as and to be made up of multiple described LED light source array.
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 (5)
1. one kind realizes the LED light source of asymmetric batswing tab luminous intensity distribution, comprise: LED illuminator, reflector, wherein the sidewall closed housing of reflector surrounds LED illuminator, and the level cross-sectionn cutaway view profile of described reflector is closed curve, and closed curve has the camber line of at least one section of indent; The C0-180 cross section map contour of described reflector is symmetrical, for centre is peak and the curved profile that reduces gradually of both sides height to the left and right, C90-270 cross section map contour is that left and right is asymmetrical, has peak and to reduce gradually to opposite side height or there is peak left and right wherein side first reduces the curved profile increased afterwards to opposite side height for left and right wherein side; Described LED illuminator is the single LED lamp of the band that made by once light-distribution technique once lens, or is added the assembly of secondary lens by the single LED lamp that secondary light-distribution technique makes.
2. LED light source according to claim 1, is characterized in that: the subjacent of described reflector has reflector substrate, and the bottom of reflector substrate has groove to match with LED illuminator.
3. LED light source according to claim 1, is characterized in that: described lens and secondary lens are multimodal lens, or hemispherical lens.
4. LED light source according to claim 1, is characterized in that: described reflector surface treatment is mirror reflection surface, or diffuse surface, or with the mixed reflection face of certain minute surface degree.
5. a LED light source module, comprises the arbitrary described LED light source of multiple Claims 1-4, described multiple LED light source LED light source consisting array.
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| CN201310008008.8A CN103123058B (en) | 2013-01-09 | 2013-01-09 | Light-emitting diode (LED) light source |
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| CN104048235B (en) * | 2014-06-18 | 2016-05-04 | 无锡市崇安区科技创业服务中心 | A kind of light distributing system and light distributing method thereof of LED plug-in unit elliptical lamp |
| CN108511576A (en) * | 2017-02-27 | 2018-09-07 | 展晶科技(深圳)有限公司 | Light-emitting diode encapsulation structure |
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| CN101545609A (en) * | 2008-03-25 | 2009-09-30 | 山西光宇电源有限公司 | Multi-surface reflector for LED street lamp |
| CN101769501A (en) * | 2008-12-29 | 2010-07-07 | 浙江晶日照明科技有限公司 | LED streetlamp reflector and streetlamp having LED streetlamp reflector |
| CN101832499A (en) * | 2010-05-28 | 2010-09-15 | 深圳市日锋电子有限公司 | LED spotlight |
| CN202303205U (en) * | 2011-03-25 | 2012-07-04 | 刘木清 | LED (light emitting diode) secondary optical system generating similar rectangular light spots, LED light source module and LED lamp |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101545609A (en) * | 2008-03-25 | 2009-09-30 | 山西光宇电源有限公司 | Multi-surface reflector for LED street lamp |
| CN101769501A (en) * | 2008-12-29 | 2010-07-07 | 浙江晶日照明科技有限公司 | LED streetlamp reflector and streetlamp having LED streetlamp reflector |
| CN101832499A (en) * | 2010-05-28 | 2010-09-15 | 深圳市日锋电子有限公司 | LED spotlight |
| CN202303205U (en) * | 2011-03-25 | 2012-07-04 | 刘木清 | LED (light emitting diode) secondary optical system generating similar rectangular light spots, LED light source module and LED lamp |
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