CN103471033A - LED (light emitting diode) lens and lens module thereof - Google Patents
LED (light emitting diode) lens and lens module thereof Download PDFInfo
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- CN103471033A CN103471033A CN2013103740412A CN201310374041A CN103471033A CN 103471033 A CN103471033 A CN 103471033A CN 2013103740412 A CN2013103740412 A CN 2013103740412A CN 201310374041 A CN201310374041 A CN 201310374041A CN 103471033 A CN103471033 A CN 103471033A
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Abstract
The invention discloses an LED lens and a lens module thereof. The LED lens comprises a light scattering unit, a reflecting unit and a base, wherein the profile of the outer surface of the C0-180 section of the light scattering unit is hemispherical or similarly hemispherical; the profile of the inner surface of the C0-180 section of the light scattering unit is conical or similarly conical; the profiles of the outer surface and the inner surface of a C90-270 section of the light scattering unit are asymmetric; the reflecting unit is positioned on one side of the light scattering unit; the LED lens is provided with an inner cavity; the surface of the inner cavity is the inner surface of the LED lens; the vertex of the outer surface of the light scattering unit is vertically aligned with the vertex of the inner surface of the LED lens; and the LED lens module consists of a plurality of LED lenses. By the illumination function of the LED lens, asymmetric batwing light distribution applicable to street illumination can be realized, total reflection of the surface of the lens is effectively reduced, a plurality of light rays can exit at one step and illuminate the area of a road surface, and the use ratio on luminous flux of illumination can be increased.
Description
Technical field
The present invention relates to the LED lighting technical field, relate in particular to a kind of LED lens and lens module thereof.
Background technology
LED is easy to realize various forms of luminous intensity distributions, a kind of technological means commonly used is to carry out the luminous intensity distribution design by secondary lens, on the basis that makes the intact mono-lamp of LED, independently lens are installed and are carried out the luminous intensity distribution design, the lens that adopt are generally the lens of polymethyl methacrylate (PMMA) material, these lens are independent of outside the mono-lamp of LED, be called secondary lens, the mono-lamp of secondary lens and LED forms optical system jointly, obtains target luminous intensity distribution form.
The C-planar system is a kind of measurement commonly used the coordinate system of description 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.The spatial light intensity of measuring and describe LED light source or light fixture under the C-planar system distributes, and light distribution is generally described by distribution curve flux; Distribution curve flux is under polar coordinate system or rectangular coordinate system, the corresponding light intensity value of all angles on certain the luminous intensity distribution plane marked, and depict the curve that light intensity value changes with angle; What people generally paid close attention to and analyzed is the distribution curve flux on C0-C180 and these two luminous intensity distribution planes of C90-C270; From distribution curve flux figure, the distribution curve flux on these two planes can overlap, and can be also diverse; The angle on the right side that the angle that we define the left side of 0 degree angle line in distribution curve flux figure is positive-angle (meaning with "+"), 0 degree angle line is negative angle (meaning with "-"), distribution curve flux on each plane can be symmetrical expression (with respect to 0 degree angle line left-right symmetry) so, can be also (asymmetric with respect to 0 degree angle line left and right) of asymmetric.Value that can the reading optical beam angle from distribution curve flux, the beam angle that we define distribution curve flux on certain luminous intensity distribution plane is: the angle value that the angle value turned over when on beam angle=distribution curve flux, the largest light intensity angle line is rotated counterclockwise the angle line to 50% largest light intensity+largest light intensity angle line dextrorotation turns over while going to the angle line of 50% largest light intensity.In addition, in order to express easily, we will be called the C0-C180 cross section with the face of C0-C180 luminous intensity distribution planes overlapping in the LED lens arrangement, with the face of C90-C270 luminous intensity distribution planes overlapping, are called the C90-C270 cross section, and C0-C180 cross section and C90-270 cross section are as the cutaway view plane of LED lens arrangement.
In the street lighting scene, 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; For some, wider bicycle lane and the street on pavement are arranged, can on a lamp stand, symmetry be installed by two street lamps, irradiate respectively car lane direction and bicycle lane direction.A kind of light-configuration mode that is suitable for street lighting is asymmetric batswing tab luminous intensity distribution, that is: on the C0-C180 plane (on corresponding road travel direction), its distribution curve flux is the bat aerofoil profile, and specifically beam angle is 140 degree to 150 degree, and largest light intensity is worth corresponding angle and spends to ± 70 degree for ± 60; On the C90-C270 plane (on corresponding road width direction), its distribution curve flux is asymmetric, and specifically beam angle is 60 degree to 90 degree, and largest light intensity is worth corresponding angle and spends to+40 degree for+10; So make the more guiding of light that the direction of illumination value is arranged, reduce unnecessary light waste, can effectively improve street lighting luminous flux utilization rate and the road lighting uniformity.
A kind of secondary lens luminous intensity distribution technology of road lighting be adopt beam angle approximately the LED light source of lambert's type luminous intensity distributions of 120 degree add bimodal pattern or multimodal secondary lens, carry out the realize target luminous intensity distribution.Described in Chinese patent application 201210072443.2 and Chinese patent application 201210574643.8, two or more high points are arranged at the profile top of lens, be similar to the shape at two peaks or a plurality of peaks, the defect of this technology is: on the surface of lens, especially there is the total reflection of light at two peak-to-peak surf zones, be that a part of light can't be disposable from the lens surface outgoing, but be reflected to lens side or below, this part light can't shine the zone, road surface, and cause optical energy loss, the reduction of the utilization rate of throwing light on and light efficiency reduce.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of LED lens, comprise: astigmatic unit, reflector element, base, a plurality of described LED lens form LED lens module, can realize being suitable for the asymmetric batswing tab luminous intensity distribution of street lighting on illumination functions, and effectively reduce the total reflection of lens surface, make the disposable outgoing of more light and shine the zone, road surface, be conducive to improve the illuminating light flux utilization rate.
For achieving the above object, the present invention adopts following technical scheme:
A kind of LED lens, comprise: astigmatic unit, reflector element, base, the outer surface profile in the C0-180 cross section of astigmatism unit is hemispherical or approximate hemispherical, the inner surface profile in the C0-180 cross section of astigmatism unit is taper or approximate taper, outer surface profile and the inner surface profile in the C90-270 cross section of astigmatism unit are unsymmetrical, and reflector element is positioned at a side of astigmatic unit; The LED lens have inner chamber, and the surface of inner chamber is the LED inner lens surfaces, vertically align with LED inner lens surfaces summit in the summit of astigmatic unit outer surface.
Further, the forward and backward surface profile of the horizontal cross-section of described reflector element is linear or convex or arcs of recesses.
Further, the height of described reflector element is greater than the height of astigmatic unit, and the length of reflector element is greater than the length of astigmatic unit.
Further, described reflector element is positioned at C90 mono-side or C270 mono-side of astigmatic unit.
Further, the surface of described inner chamber comprises the inner surface of astigmatic unit and the inner surface of base.
Further, in the inner chamber of described LED lens, placing LED light source, vertically aligns with the summit of described astigmatic unit outer surface in the summit of LED light source.
Further, described C90-270 cross section is by the summit of LED light source and the determined axle in summit of described astigmatic unit outer surface, and the upper surface central point that comprises described reflector element.
Further, the summit of LED light source and the determined axle in summit of described astigmatic unit are passed through in described C0-180 cross section, and perpendicular to the C90-270 cross section.
A kind of LED lens module, comprise a plurality of described LED lens, and a plurality of described LED lens can form integral structure.
Compared with prior art, technique scheme has the following advantages:
On the one hand, can realize being suitable for the asymmetric batswing tab luminous intensity distribution of street lighting on illumination functions, especially can meet the road lighting uniformity that lamp stand spacing and pole height ratio are greater than 4 situation; On the other hand, effectively reduce the total reflection of lens surface, make the disposable outgoing of more light and shine the zone, road surface, be conducive to improve the illuminating light flux utilization rate.
The accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of the LED lens that Fig. 1 provides for the embodiment of the present invention one;
The C0-180 cross-sectional view of the LED lens that Fig. 2 provides for the embodiment of the present invention one;
The C90-270 cross-sectional view of the LED lens that Fig. 3 provides for the embodiment of the present invention one;
The top view of the LED lens that Fig. 4 provides for the embodiment of the present invention one;
The top view of the LED light source that Fig. 5 provides for the embodiment of the present invention one, two, three;
The exploded view of the LED lens that Fig. 6 provides for the embodiment of the present invention one and LED light source combination;
The C0-180 cross-sectional view of the LED lens that Fig. 7 provides for the embodiment of the present invention one and LED light source combination;
The C90-270 cross-sectional view of the LED lens that Fig. 8 provides for the embodiment of the present invention one and LED light source combination;
The structural representation of the LED lens that Fig. 9 provides for the embodiment of the present invention two;
The C0-180 cross-sectional view of the LED lens that Figure 10 provides for the embodiment of the present invention two;
The C90-270 cross-sectional view of the LED lens that Figure 11 provides for the embodiment of the present invention two;
The top view of the LED lens that Figure 12 provides for the embodiment of the present invention two;
The exploded view of the LED lens that Figure 13 provides for the embodiment of the present invention two and LED light source combination;
The C0-180 cross-sectional view of the LED lens that Figure 14 provides for the embodiment of the present invention two and LED light source combination;
The C90-270 cross-sectional view of the LED lens that Figure 15 provides for the embodiment of the present invention two and LED light source combination;
The structural representation of the LED lens that Figure 16 provides for the embodiment of the present invention three;
The C0-180 cross-sectional view of the LED lens that Figure 17 provides for the embodiment of the present invention three;
The C90-270 cross-sectional view of the LED lens that Figure 18 provides for the embodiment of the present invention three;
The top view of the LED lens that Figure 19 provides for the embodiment of the present invention three;
The exploded view of the LED lens that Figure 20 provides for the embodiment of the present invention three and LED light source combination;
The C0-180 cross-sectional view of the LED lens that Figure 21 provides for the embodiment of the present invention three and LED light source combination;
The C90-270 cross-sectional view of the LED lens that Figure 22 provides for the embodiment of the present invention three and LED light source combination;
The structural representation of the LED lens module that Figure 23 provides for the embodiment of the present invention four;
The structural representation of the LED lens module that the further prioritization scheme that Figure 24 is the embodiment of the present invention four provides;
The light schematic diagram in the C0-180 cross section of the LED lens that Figure 25 (1) proposes for the embodiment of the present invention one, two, three;
The light schematic diagram in the C90-270 cross section of the LED lens that Figure 25 (2) proposes for the embodiment of the present invention one, two, three;
The light schematic diagram of the horizontal cross-sectional profile of the reflector element rear surface of the LED lens that Figure 26 (1) proposes for the embodiment of the present invention one;
The light schematic diagram of the horizontal cross-sectional profile of the reflector element rear surface of the LED lens that Figure 26 (2) proposes for the embodiment of the present invention two;
The light schematic diagram of the horizontal cross-sectional profile of the reflector element rear surface of the LED lens that Figure 26 (3) proposes for the embodiment of the present invention three;
The distribution curve flux figure that Figure 27 is the LED light source that proposes of the embodiment of the present invention one, two, three;
The distribution curve flux figure that Figure 28 is the LED lens that propose of the embodiment of the present invention one, two, three and LED light source combination;
The distribution curve flux figure of the further prioritization scheme that Figure 29 is the embodiment of the present invention four;
The structural representation that Figure 30 (1) is a kind of LED lens in prior art;
The C0-180 cross-sectional view that Figure 30 (2) is a kind of LED lens in prior art;
The light schematic diagram in the C0-180 cross section that Figure 30 (3) is a kind of LED lens in prior art;
The structural representation that Figure 31 (1) is another kind of LED lens in prior art;
The C0-180 cross-sectional view that Figure 31 (2) is another kind of LED lens in prior art;
The light schematic diagram in the C0-180 cross section that Figure 31 (3) is another kind of LED lens in prior art;
The light schematic diagram in the C0-180 cross section that Figure 32 is another LED lens in prior art;
The light schematic diagram in the C90-270 cross section that Figure 33 is another LED lens in prior art.
There is shown: 1-LED lens, 11-astigmatic unit, 12-reflector element, 13-base, 14-inner chamber, 15-astigmatic unit outer surface, 16-LED inner lens surfaces, 2-LED light source, 3-LED light source module.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making under the creative work prerequisite the every other embodiment obtained, belong to the scope of protection of the invention.
A lot of details have been set forth 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 and implement, those skilled in the art can be in the situation that do similar popularization without prejudice to intension of the present invention, so the present invention is not subject to the restriction of following public specific embodiment.
Secondly, the present invention is described in detail in conjunction with schematic diagram, and when the embodiment of the present invention is described in detail in detail, for ease of explanation, device architecture figure can disobey general ratio and make local convergent-divergent, and described schematic diagram is example, and it should not limit the scope of protection of the invention at this.The three-dimensional space that in actual fabrication, should comprise in addition, length, width and height.
Embodiment mono-:
With reference to figure 1, the structural representation of the LED lens that Fig. 1 provides for the embodiment of the present invention one; As can be seen from the figure, the LED lens 1 that the embodiment of the present invention one provides comprise: astigmatic unit 11, reflector element 12, base 13, astigmatic unit 11 and reflector element 12 are positioned at base top 13, are integrated.
With reference to figure 2, Fig. 3, the C0-180 cross-sectional view of the LED lens that Fig. 2 provides for the embodiment of the present invention one, the C90-270 cross-sectional view of the LED lens that Fig. 3 provides for the embodiment of the present invention one; As can be seen from the figure, LED lens 1 have inner chamber 14, and inner chamber 14 is surrounded by astigmatic unit 11 and the base 13 of LED lens 1, and the surface of inner chamber 14 is LED inner lens surfaces 16, comprise the inner surface of astigmatic unit 11 and the inner surface of base 13; Outer surface 15 profiles in the C0-180 cross section of astigmatism unit 11 are approximate hemispherical, the inner surface profile in the C0-180 cross section of astigmatism unit 11 is approximate taper, outer surface 15 profiles and the inner surface profile in the C90-270 cross section of astigmatism unit 11 are unsymmetrical, and reflector element 12 is positioned at C270 mono-side of astigmatic unit 11.
With reference to figure 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, the top view of the LED lens that Fig. 4 provides for the embodiment of the present invention one, the top view of the LED light source that Fig. 5 provides for the embodiment of the present invention one, two, three, the exploded view of the LED lens that Fig. 6 provides for the embodiment of the present invention one and LED light source combination, the C0-180 cross-sectional view of the LED lens that Fig. 7 provides for the embodiment of the present invention one and LED light source combination, the C90-270 cross-sectional view that the LED lens that Fig. 8 provides for the embodiment of the present invention one and LED light source combine; As can be seen from the figure, the forward and backward surface profile of the horizontal cross-section of reflector element 12 is linear, and the height of reflector element 12 is greater than the height of astigmatic unit 11, and the length of reflector element 12 is greater than the length of astigmatic unit 11; Place LED light source 2 in the inner chamber 14 of LED lens 1, the summit O of LED light source 2 vertically aligns with described astigmatic unit 11 summit B, and astigmatic unit 11 summit B vertically aligns with the summit C of LED inner lens surfaces 16; Described C90-270 cross section is by the summit O of LED light source 2 and the determined axle OB of summit B of described astigmatic unit, and the upper surface central point A that comprises described reflector element 12, summit O and the determined axle OB of described astigmatic unit 11 summit B of LED light source 2 are passed through in the C0-180 cross section, and perpendicular to the C90-270 cross section.
Embodiment bis-:
With reference to figure 9, the structural representation of the LED lens that Fig. 9 provides for the embodiment of the present invention two; As can be seen from the figure, the LED lens 1 that the embodiment of the present invention two provides comprise: astigmatic unit 11, reflector element 12, base 13, astigmatic unit 11 and reflector element 12 are positioned at base top 13, are integrated.
With reference to Figure 10, Figure 11, the C0-180 cross-sectional view of the LED lens that Figure 10 provides for the embodiment of the present invention two, the C90-270 cross-sectional view of the LED lens that Figure 11 provides for the embodiment of the present invention two; As can be seen from the figure, LED lens 1 have inner chamber 14, and inner chamber 14 is surrounded by astigmatic unit 11 and the base 13 of LED lens 1, and the surface of inner chamber 14 is LED inner lens surfaces 16, comprise the inner surface of astigmatic unit 11 and the inner surface of base 13; Outer surface 15 profiles in the C0-180 cross section of astigmatism unit 11 are approximate hemispherical, the inner surface profile in the C0-180 cross section of astigmatism unit 11 is approximate taper, outer surface 15 profiles and the inner surface profile in the C90-270 cross section of astigmatism unit 11 are unsymmetrical, and reflector element 12 is positioned at C270 mono-side of astigmatic unit 11.
With reference to Figure 12, Figure 13, Figure 14, Figure 15, the top view of the LED lens that Figure 12 provides for the embodiment of the present invention two, the exploded view of the LED lens that Figure 13 provides for the embodiment of the present invention two and LED light source combination, the C0-180 cross-sectional view of the LED lens that Figure 14 provides for the embodiment of the present invention two and LED light source combination, the C90-270 cross-sectional view that the LED lens that Figure 15 provides for the embodiment of the present invention two and LED light source combine; As can be seen from the figure, the front surface profile of the horizontal cross-section of reflector element 12 is linear, and the rear surface profile is outer arcuate, and the height of reflector element 12 is greater than the height of astigmatic unit 11, and the length of reflector element 12 is greater than the length of astigmatic unit 11; Placing LED light source 2 in the inner chamber 14 of LED lens 1, vertically aligns with 11 summit, described astigmatic unit in the summit of LED light source 2, vertically aligns with the summit of LED inner lens surfaces 16 in 11 summit, astigmatic unit, and its principle is with consistent described in embodiment mono-; The definition in described C90-270 cross section and C0-180 cross section is with consistent described in embodiment mono-.
Embodiment tri-:
With reference to Figure 16, the structural representation of the LED lens that Figure 16 provides for the embodiment of the present invention three; As can be seen from the figure, the LED lens 1 that the embodiment of the present invention three provides comprise: astigmatic unit 11, reflector element 12, base 13, astigmatic unit 11 and reflector element 12 are positioned at base top 13, are integrated.
With reference to Figure 17, Figure 18, the C0-180 cross-sectional view of the LED lens that Figure 17 provides for the embodiment of the present invention three, the C90-270 cross-sectional view of the LED lens that Figure 18 provides for the embodiment of the present invention three; As can be seen from the figure, LED lens 1 have inner chamber 14, and inner chamber 14 is surrounded by astigmatic unit 11 and the base 13 of LED lens 1, and the surface of inner chamber 14 is LED inner lens surfaces 16, comprise the inner surface of astigmatic unit 11 and the inner surface of base 13; Outer surface 15 profiles in the C0-180 cross section of astigmatism unit 11 are approximate hemispherical, the inner surface profile in the C0-180 cross section of astigmatism unit 11 is approximate taper, outer surface 15 profiles and the inner surface profile in the C90-270 cross section of astigmatism unit 11 are unsymmetrical, and reflector element 12 is positioned at C270 mono-side of astigmatic unit 11.
With reference to Figure 19, Figure 20, Figure 21, Figure 22, the top view of the LED lens that Figure 19 provides for the embodiment of the present invention three, the exploded view of the LED lens that Figure 20 provides for the embodiment of the present invention three and LED light source combination, the C0-180 cross-sectional view of the LED lens that Figure 21 provides for the embodiment of the present invention three and LED light source combination, the C90-270 cross-sectional view that the LED lens that Figure 22 provides for the embodiment of the present invention three and LED light source combine; As can be seen from the figure, the front surface profile of the horizontal cross-section of reflector element 12 is linear, and the rear surface profile is arc, and the height of reflector element 12 is greater than the height of astigmatic unit 11, and the length of reflector element 12 is greater than the length of astigmatic unit 11; Placing LED light source 2 in the inner chamber 14 of LED lens 1, vertically aligns with 11 summit, described astigmatic unit in the summit of LED light source 2, vertically aligns with the summit of LED inner lens surfaces 16 in 11 summit, astigmatic unit, and its principle is with consistent described in embodiment mono-; The definition in described C90-270 cross section and C0-180 cross section is with consistent described in embodiment mono-.
With reference to Figure 25, Figure 26, the light schematic diagram in the C0-180 cross section of the LED lens that Figure 25 (1) proposes for the embodiment of the present invention one, two, three, the light schematic diagram in the C90-270 cross section of the LED lens that Figure 25 (2) proposes for the embodiment of the present invention one, two, three, the light schematic diagram of the horizontal cross-sectional profile of the reflector element rear surface that Figure 26 is the LED lens that propose of the embodiment of the present invention one, two, three; From Figure 25 (1), can find out, light by the refraction of LED inner lens surfaces 16, astigmatic unit outer surface 15 two layers of surface after outgoing, light is dispersed to both sides on the C0-180 direction, and, in the street lighting application, light can be dispersed and come to both sides along track; From Figure 25 (2), can find out, light by the refraction of LED inner lens surfaces 16, astigmatic unit outer surface 15 two layers of surface after outgoing, light is partial to C90 mono-side on the C90-270 direction, in addition the rear surface of reflector element 12 by a part of incident direction at the light reflection of C270 mono-side to C90 mono-side, in the street lighting application, light can be partial to track one side.From Figure 26 (1), can find out, reflector element 12 rear surfaces of the LED lens 1 that the embodiment of the present invention one provides are reflected incident ray, from the horizontal sectional view reflection ray, are what disperse; From Figure 26 (2), can find out, reflector element 12 rear surfaces of the LED lens 1 that the embodiment of the present invention two provides are reflected incident ray, from the horizontal sectional view reflection ray, are what disperse; From Figure 26 (3), can find out, reflector element 12 rear surfaces of the LED lens 1 that the embodiment of the present invention three provides are reflected incident ray, from the horizontal sectional view reflection ray, are what assemble.Generally, in the street lighting application, light is understood focusing on road surface of suitable degree, and hot spot can evenly scatter in the road surface scope.In addition, the upper surface profile of the astigmatic unit 11 of LED lens 1 is hemispherical or approximate hemispherical, under this mechanism, the light that incides astigmatic unit 11 outer surfaces 15 can disposable outgoing, and total reflection can not occur, make the disposable outgoing of light and shine the zone, road surface, being conducive to improve the illuminating light flux utilization rate.
With reference to Figure 27, Figure 28, the distribution curve flux figure that Figure 27 is the LED light source that proposes of the embodiment of the present invention one, two, three, Figure 28 is the LED lens that propose of the embodiment of the present invention one, two, three and the distribution curve flux figure of LED light source combination; As can be seen from Figure 27, the LED light source 2 that the embodiment of the present invention one, two, three proposes is approximately lambert's type luminous intensity distribution forms of 120 degree of beam angle; As can be seen from Figure 28, the LED lens 1 that the embodiment of the present invention one, two, three proposes with the luminous intensity distribution form of LED light source 2 combinations are: on the C0-C180 plane (on corresponding road travel direction), its distribution curve flux is the bat aerofoil profile, about 150 degree of beam angle specifically, largest light intensity is worth corresponding angle approximately ± 65 degree; On the C90-C270 plane (on corresponding road width direction), its distribution curve flux is asymmetric, about 85 degree of beam angle specifically, and largest light intensity is worth corresponding angle approximately+40 degree; So make the more guiding of light that the direction of illumination value is arranged, reduce unnecessary light waste, and can effectively improve street lighting luminous flux utilization rate and the road lighting uniformity.
With reference to Figure 30, Figure 31, the structural representation that Figure 30 (1) is a kind of LED lens in prior art, the C0-180 cross-sectional view that Figure 30 (2) is a kind of LED lens in prior art, the light schematic diagram in the C0-180 cross section that Figure 30 (3) is a kind of LED lens in prior art, the structural representation that Figure 31 (1) is another kind of LED lens in prior art, the C0-180 cross-sectional view that Figure 31 (2) is another kind of LED lens in prior art, the light schematic diagram in the C0-180 cross section that Figure 31 (3) is another kind of LED lens in prior art; With reference to Chinese patent application 201210072443.2 and Chinese patent application 201210574643.8; As can be seen from the figure, in prior art, two or more high points are arranged at the profile top of lens, be similar to the shape at two peaks or a plurality of peaks, the defect of prior art is: on the surface of lens, especially there is the total reflection of light at two peak-to-peak surf zones, be that a part of light can't be disposable from the lens surface outgoing, but be reflected to lens side or below, this part light can't shine the zone, road surface, and causing optical energy loss, the reduction of the utilization rate of throwing light on and light efficiency reduce.
With reference to Figure 32, Figure 25 (1), the light schematic diagram in the C0-180 cross section that Figure 32 is another LED lens in prior art (with reference to Chinese patent 200920208777.1), the light schematic diagram in the C0-180 cross section of the LED lens that Figure 25 (1) proposes for the embodiment of the present invention one, two, three; As can be seen from Figure 32, the inner surface profile in the C0-180 cross section of the lens that propose in prior art is " M " type, light convergence to a certain degree occurs or concentrates after the inner surface refraction, then carry out dispersing to a certain degree through lens outer surface refraction, realize scattering to both sides at C0-180 direction glazed thread by this mechanism; From Figure 25 (1), can find out, the inner lens surfaces in the C0-180 cross section of the LED lens that the embodiment of the present invention one, two, three proposes is approximate taper, light dispersing to a certain degree occur through inner lens surfaces refraction, then further dispersed after the lens outer surface refraction, realize scattering to both sides at C0-180 direction glazed thread.The technology that the present invention proposes unlike the prior art, advantage of the present invention is to be conducive to light and fully scatters on the C0-180 direction, as distribution curve flux largest light intensity angle on the C0-180 plane reach 65 degree or 65 the degree more than, the road lighting uniformity is higher, especially can meet the lamp stand distance large (as 10 meters of pole height, the lamp stand spacing is more than 40 meters) situation under the illumination uniformity requirement, the approximate hemispherical dome structure of lens outer surface is beneficial to the disposable outgoing of light and shines the zone, road surface simultaneously, improves the illuminating light flux utilization rate.
With reference to Figure 33, Figure 25 (2), the light schematic diagram in the C90-270 cross section that Figure 33 is another LED lens in prior art (with reference to Chinese patent 200920208777.1), the light schematic diagram in the C90-270 cross section of the LED lens that Figure 25 (2) proposes for the embodiment of the present invention one, two, three; As can be seen from Figure 33, in the C90-270 cross section of the lens that prior art proposes, inner surface, outer surface are unsymmetric structure, but vertically do not align with the outer surface profile summit in the inner surface profile summit, light can be partial to a side on outer surface summit after the refraction on inside and outside surface, can allow light focus on road surface one side; From Figure 25 (2), can find out, the inside and outside surface of lens in the C90-270 cross section of the LED lens that the embodiment of the present invention one, two, three proposes is unsymmetric structure, and vertically align with the outer surface profile summit in the inner surface profile summit, light can be partial to a side relative with the outer surface summit after the refraction on inside and outside surface, can allow light focus on road surface one side; The technology that the present invention proposes unlike the prior art, advantage of the present invention is to allow more light focus on a certain side, especially the rear surface of reflector element by a part of incident direction at the light reflection of C270 mono-side to C90 mono-side, more light shines the zone, road surface just can obtain higher road illumination.
Embodiment tetra-:
With reference to Figure 23, the structural representation of the LED lens module that Figure 23 provides for the embodiment of the present invention four; As can be seen from the figure, the LED lens module 3 that the embodiment of the present invention four provides is to consist of four described LED lens 1 of embodiment bis-, and forms integral structure.The luminous intensity distribution form of the LED lens module 3 that the embodiment of the present invention four provides is with consistent shown in Figure 28.
The further prioritization scheme of embodiment tetra-:
With reference to Figure 24, the structural representation of the LED lens module that the further prioritization scheme that Figure 24 is the embodiment of the present invention four provides; As can be seen from the figure, further optimization as the embodiment of the present invention four, by in LED lens module 3 on the C0-180 direction adjacent any two LED lens 1 couple together, be more particularly that the sidewall of reflector element 12 in LED lens 1 is extended to both sides on the C0-180 direction, the reflector element 12 of itself and adjacent LED lens 1 is linked into an integrated entity.
With reference to Figure 29, the distribution curve flux figure of the further prioritization scheme that Figure 29 is the embodiment of the present invention four; As can be seen from the figure, the light intensity value of negative angle one side of C45-225 luminous intensity distribution surface curve obviously reduces (being contrasted with distribution curve flux shown in Figure 28), illustrates that light more is partial to road one side, and road illumination can further improve.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.Multiple modification to these embodiment will be apparent for those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from the spirit or scope of the present invention, realization in other embodiments.Therefore, the present invention will can not be restricted to embodiment illustrated herein, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. LED lens, comprise: astigmatic unit, reflector element, base, the outer surface profile in the C0-180 cross section of astigmatism unit is hemispherical or approximate hemispherical, the inner surface profile in the C0-180 cross section of astigmatism unit is taper or approximate taper, outer surface profile and the inner surface profile in the C90-270 cross section of astigmatism unit are unsymmetrical, and reflector element is positioned at a side of astigmatic unit; The LED lens have inner chamber, and the surface of inner chamber is the LED inner lens surfaces, vertically align with LED inner lens surfaces summit in the summit of astigmatic unit outer surface.
2. LED lens according to claim 1, it is characterized in that: the forward and backward surface profile of the horizontal cross-section of described reflector element is linear or convex or arcs of recesses.
3. LED lens according to claim 1, it is characterized in that: the height of described reflector element is greater than the height of astigmatic unit, and the length of described reflector element is greater than the length of astigmatic unit.
4. LED lens according to claim 1, it is characterized in that: described reflector element is positioned at C90 mono-side or C270 mono-side of astigmatic unit.
5. LED lens according to claim 1, it is characterized in that: the surface of described inner chamber comprises the inner surface of astigmatic unit and the inner surface of base.
6. LED lens according to claim 1, it is characterized in that: placing LED light source in the inner chamber of described LED lens, vertically aligns with the summit of described astigmatic unit outer surface in the summit of LED light source.
7. according to the arbitrary described LED lens of claim 1 to 6, it is characterized in that: the C90-270 cross section is by the summit of LED light source and the determined axle in summit of described astigmatic unit outer surface, and the upper surface central point that comprises described reflector element.
8. according to the arbitrary described LED lens of claim 1 to 6, it is characterized in that: the summit of LED light source and the determined axle in summit of described astigmatic unit are passed through in the C0-180 cross section, and perpendicular to the C90-270 cross section.
9. a LED lens module, is characterized in that: comprise the arbitrary described LED lens of a plurality of claims 1 to 8.
10. LED lens module according to claim 9, is characterized in that: a plurality of being integral of LED set of lenses structures.
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| CN201310374041.2A CN103471033B (en) | 2013-08-23 | 2013-08-23 | LED (light emitting diode) lens and lens module thereof |
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| CN201310374041.2A CN103471033B (en) | 2013-08-23 | 2013-08-23 | LED (light emitting diode) lens and lens module thereof |
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| CN103471033B CN103471033B (en) | 2015-06-10 |
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| CN201310374041.2A Expired - Fee Related CN103471033B (en) | 2013-08-23 | 2013-08-23 | LED (light emitting diode) lens and lens module thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235760A (en) * | 2014-08-28 | 2014-12-24 | 深圳市大族元亨光电股份有限公司 | LED (Light Emitting Diode) lens and lens module |
| KR101541826B1 (en) * | 2014-04-28 | 2015-08-12 | 한국광기술원 | Asymmetric type lens and tunner lighting using the same |
| EP2924345A1 (en) | 2014-03-28 | 2015-09-30 | Swarco Futurit Verkehrssignalsysteme Ges.m.b.H. | Lighting devices with asymmetrical light distribution |
| CN107191891A (en) * | 2017-06-08 | 2017-09-22 | 深圳市美斯特光电技术有限公司 | Optical stereo lens |
| CN108266702A (en) * | 2017-01-03 | 2018-07-10 | 山东申士光电有限公司 | A kind of LED lens |
| CN109210502A (en) * | 2018-09-19 | 2019-01-15 | 桂林海威科技股份有限公司 | Bar lamp lens are exempted from a kind of glare prevention LED low latitude |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201568888U (en) * | 2009-09-01 | 2010-09-01 | 品能光电(苏州)有限公司 | Led lamp lens |
| CN202419491U (en) * | 2011-12-13 | 2012-09-05 | 中微光电子(潍坊)有限公司 | LED (light-emitting diode) street lamp reflector |
| CN102840544A (en) * | 2011-06-24 | 2012-12-26 | 海洋王照明科技股份有限公司 | Light distribution lens and LED (Light Emitting Diode) streetlamp |
| CN102853289A (en) * | 2012-03-19 | 2013-01-02 | 中微光电子(潍坊)有限公司 | Light-emitting diode (LED) optical system |
| CN103032774A (en) * | 2012-12-26 | 2013-04-10 | 中微光电子(潍坊)有限公司 | Light emitting diode (LED) light source |
| CN103196040A (en) * | 2012-01-06 | 2013-07-10 | 扬升照明股份有限公司 | Lens structure, light source device and light source module |
| US20130194810A1 (en) * | 2011-08-31 | 2013-08-01 | Ching-Cherng Sun | Reflective street light with wide divergence angle |
-
2013
- 2013-08-23 CN CN201310374041.2A patent/CN103471033B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201568888U (en) * | 2009-09-01 | 2010-09-01 | 品能光电(苏州)有限公司 | Led lamp lens |
| CN102840544A (en) * | 2011-06-24 | 2012-12-26 | 海洋王照明科技股份有限公司 | Light distribution lens and LED (Light Emitting Diode) streetlamp |
| US20130194810A1 (en) * | 2011-08-31 | 2013-08-01 | Ching-Cherng Sun | Reflective street light with wide divergence angle |
| CN202419491U (en) * | 2011-12-13 | 2012-09-05 | 中微光电子(潍坊)有限公司 | LED (light-emitting diode) street lamp reflector |
| CN103196040A (en) * | 2012-01-06 | 2013-07-10 | 扬升照明股份有限公司 | Lens structure, light source device and light source module |
| CN102853289A (en) * | 2012-03-19 | 2013-01-02 | 中微光电子(潍坊)有限公司 | Light-emitting diode (LED) optical system |
| CN103032774A (en) * | 2012-12-26 | 2013-04-10 | 中微光电子(潍坊)有限公司 | Light emitting diode (LED) light source |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2924345A1 (en) | 2014-03-28 | 2015-09-30 | Swarco Futurit Verkehrssignalsysteme Ges.m.b.H. | Lighting devices with asymmetrical light distribution |
| KR101541826B1 (en) * | 2014-04-28 | 2015-08-12 | 한국광기술원 | Asymmetric type lens and tunner lighting using the same |
| CN104235760A (en) * | 2014-08-28 | 2014-12-24 | 深圳市大族元亨光电股份有限公司 | LED (Light Emitting Diode) lens and lens module |
| CN108266702A (en) * | 2017-01-03 | 2018-07-10 | 山东申士光电有限公司 | A kind of LED lens |
| CN107191891A (en) * | 2017-06-08 | 2017-09-22 | 深圳市美斯特光电技术有限公司 | Optical stereo lens |
| CN109210502A (en) * | 2018-09-19 | 2019-01-15 | 桂林海威科技股份有限公司 | Bar lamp lens are exempted from a kind of glare prevention LED low latitude |
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| CN103471033B (en) | 2015-06-10 |
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