CN101487573A - LED road lamp light distribution system - Google Patents

LED road lamp light distribution system Download PDF

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Publication number
CN101487573A
CN101487573A CNA2008100018781A CN200810001878A CN101487573A CN 101487573 A CN101487573 A CN 101487573A CN A2008100018781 A CNA2008100018781 A CN A2008100018781A CN 200810001878 A CN200810001878 A CN 200810001878A CN 101487573 A CN101487573 A CN 101487573A
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CN
China
Prior art keywords
led
luminescence unit
distribution system
light distribution
lamp light
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Pending
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CNA2008100018781A
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Chinese (zh)
Inventor
朱伯明
陈海军
孙建江
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NINGBO LIAOYUAN LIGHTING CO Ltd
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NINGBO LIAOYUAN LIGHTING CO Ltd
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Priority to CNA2008100018781A priority Critical patent/CN101487573A/en
Publication of CN101487573A publication Critical patent/CN101487573A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/08—Lighting devices intended for fixed installation with a standard
    • F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
    • F21S8/086—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light with lighting device attached sideways of the standard, e.g. for roads and highways
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/103—Outdoor lighting of streets or roads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The invention relates to an LED street lamp light distribution system, which comprises an LED luminescence unit and an LED luminescence unit fitting seat. The part where the fitting seat contacted with the LED luminescence unit comprises a plurality of fixed surfaces. The axis of the LED luminescence unit arranged on the fixed surfaces points at different places of an irradiating surface. The back of the fitting seat is provided with a heat dissipation device. The LED luminescence unit comprises a luminous body and a lens. The LED street lamp light distribution system solves the shortcomings of uneven light distribution, inadequate LED light source efficiency utilization and the like of the existing LED lamp light; the luminous intensity distribution curve of the lamp light distribution system takes on a batwing shape that transverse axels are symmetrical and longitudinal axes are unsymmetrical along roads; therefore, the lamp light distribution system is suitable for roads with different irradiating surfaces, increases light utilization rate and simultaneously solves the heat dissipation problem of the LED street lamp light distribution system.

Description

The LED road lamp light distribution system
Technical field
The present invention relates to a kind of light distributing system that is used for lighting fields such as road, tunnel, particularly relate to a kind of LED road lamp light distribution system that is fit on a large scale, grows distance.It is different incident angle and the irradiated area of each LED luminescence unit that reaches the LED road lamp light distribution system by positional alignment, luminous intensity and the optical axis direction of control LED luminescence unit, and become a kind of new design that quite has practicality and progressive, be suitable for the industrial circle wide popularization and application.
Background technology
Present existing LED street lamp, though comparing conventional lamp, to have a life-span long, the photochromic good characteristics that wait, but under same street lamp arrangement condition, but can not satisfy the demand of use for the desired luminous intensity distribution uniformity of road lighting, for example Chinese invention patent 200510112612.0, these light fixtures of patent disclosures such as utility model patent 200520062069.3, be to have adopted one or more LED unit mostly, by simple array arrangement light is projected irradiated region, and its light distribution structure of light fixture of such arrangement architecture is to large-area illumination, especially for the illumination that is used for road or tunnel, the light source characteristic of its LED then can not be fully played, often make the light on a certain direction or the zone too concentrated, and can not adapt to fully road, application scenarios such as tunnel require irradiated area bigger, and light source itself is various with irradiation target direction and variable in distance, light need be along the actual demand of certain direction tension distribution.Therefore, above-mentioned transitional street lamps light distributing system had both influenced the effect of the even illumination on the road, and the light that light source is sent is utilized efficiently again.
This shows that above-mentioned transitional street lamps light distributing system obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.For solving the problem that the transitional street lamps light distributing system exists, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, and this obviously is the problem that the anxious desire of relevant dealer solves.Therefore it is bigger how to found a kind of irradiated area, it is various with irradiation target direction and variable in distance to adapt to light source itself, and can make light along certain direction tension distribution, road laterally covers the width of roadway broad and the LED road lamp light distribution system of the new structure of the requirement that evenly distributes and satisfy, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Because the defective that above-mentioned transitional street lamps light distributing system exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of founding a kind of LED road lamp light distribution system of new structure, can improve general transitional street lamps light distributing system, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
The objective of the invention is to, the photometric distribution that overcomes existing LED street lamp existence is inhomogeneous, and the defective efficiently utilized of the light that light source is sent, and provide a kind of LED road lamp light distribution system of new structure, technical problem to be solved is to make it can be applicable to road, tunnel or the like lighting field, it is bigger to have the directional illumination area, light source itself is various with the target direction and the variable in distance of irradiation, and light need be along road direction stretching longitudinally, and can reach the requirement that road laterally covers the wider distribution of width of roadway, be very suitable for practicality.
Another object of the present invention is to, a kind of LED road lamp light distribution system is provided, technical problem to be solved is to make it can illuminate the road surface more effectively, under the prerequisite that satisfies certain setting height(from bottom) and spacing, can reach even light distribution, and can reduce led light source power, thereby be suitable for practicality more.
The object of the invention to solve the technical problems realizes by the following technical solutions.LED road lamp light distribution system according to the present invention's proposition, comprise several LED luminescence units and LED luminescence unit mount pad, its characteristics are the zone that needs illuminate is divided into some zonules, described each LED luminescence unit becomes corresponding angular illumination with institute each zonule of irradiated plane one by one from the height of regulation, form several light bands, make the uniform light distributing system of lighting on the shadow surface.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid LED road lamp light distribution system, wherein have at least two LED luminescence unit central axis directions to invest from this light distributing system distance shadow surface appointed area farthest, and the angle of LED luminescence unit central axis and irradiated plane is 15 °-40 °, and wherein having a trend of purchasing at least is maximum in all luminescence units from the light intensity of the LED luminescence unit of this light distributing system distance shadow surface appointed area farthest; Have at least a LED luminescence unit central axis direction to invest, and the angle of central axis and irradiated plane is 55 °-90 ° from the nearest shadow surface appointed area of this light distributing system.
Aforesaid LED road lamp light distribution system has the LED luminescence unit composition that comprises that three kinds of luminous intensities and corresponding beam angle constitute at least in the wherein said LED road lamp light distribution system.
Aforesaid LED road lamp light distribution system, wherein having the angle between three LED luminescence unit central shafts and the adjacent separately LED luminescence unit central shaft at least is 5 °-40 °.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid LED road lamp light distribution system, wherein said mount pad comprises inner surface and outer surface, is provided with a plurality of stationary planes on the inner surface of mount pad, adjacent stationary plane all is on the different planes arbitrarily, and becomes different Space Angle each other.
Aforesaid LED road lamp light distribution system, wherein said luminescence unit mount pad is provided with cover plate, is provided with perforate with LED luminescence unit opposite position place on the described cover plate.
Aforesaid LED road lamp light distribution system, wherein said luminescence unit mount pad back is provided with heat abstractor.
The object of the invention to solve the technical problems also realizes in addition by the following technical solutions.According to the LED road lamp light distribution system that the present invention proposes, wherein said each LED luminescence unit is installed on the real estate of corresponding substrate with it, and another real estate of substrate is installed on the stationary plane.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid LED road lamp light distribution system, the led light source of wherein said each LED luminescence unit are directly installed on the corresponding with it stationary plane.
Aforesaid LED road lamp light distribution system, wherein having the real estate of two substrates and the angle of irradiated plane at least is 50 °-75 °.
Aforesaid LED road lamp light distribution system, wherein having the real estate of three substrates and the angle of the real estate of adjacent substrate separately at least is 5 °-40 °.
The object of the invention to solve the technical problems realizes in addition more by the following technical solutions.According to the LED road lamp light distribution system that the present invention proposes, its characteristics are that having the angle of two stationary planes and irradiated plane at least is 50 °-75 °.
Aforesaid LED road lamp light distribution system, wherein having the angle between three stationary planes and the adjacent separately stationary plane at least is 5 °-40 °.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid LED road lamp light distribution system, wherein said heat abstractor is for separately discrete or fuse with mount pad, and its profile is the general solid that sheet or list structure are formed.
By above technical scheme as can be known, in order to reach aforementioned goal of the invention, major technique of the present invention thes contents are as follows:
The present invention proposes a kind of LED road lamp light distribution system, and the zone that needs are illuminated is divided into some zonules, is divided into several light bands by each zone with respect to the distance and the direction of native system.The LED road lamp light distribution system is made of LED luminescence unit and LED luminescence unit mount pad, the part that mount pad contacts with the LED luminescence unit is made up of several stationary planes, each be placed on each light band of orientation of its axis of the LED luminescence unit on the stationary plane and have corresponding beam angle and and luminous intensity, the heat that heat abstractor distributes led light source is established at the back of mount pad.
The LED road lamp light distribution system that the present invention proposes, it is made up of several LED luminescence units, different irradiation area on the corresponding road surface of each LED luminescence unit, luminescent system has the certain height requirement apart from the road shadow surface, and each LED luminescence unit phase road pavement just has different separately incident angles and irradiated area.Incident angle that each LED luminescence unit of this LED road lamp light distribution system is different and irradiated area reach by the positional alignment and the optical axis direction of control LED luminescence unit.
The LED road lamp light distribution system that the present invention proposes requires illumination evenly to distribute on road surface, and the luminous intensity and the distribution of shapes of the LED luminescence unit that it adopts are distinguished each other to some extent.The luminous intensity of LED luminescence unit can be finished with the lens with different beam angles with distribution of shapes, the several LED luminescence units of usefulness in the remote zone of irradiation dispose corresponding arrow beam of light angle, lens that the optically focused degree is high, or the LED light emitting module of several arrow beam of lights.Along with shifting near of irradiation distance, the employed lens beam angle of LED luminescence unit just increases gradually, and the optically focused degree reduces gradually.
The present invention compared with prior art has tangible advantage and beneficial effect.By technique scheme, LED road lamp light distribution system of the present invention can reach suitable technological progress and practicality, and has the extensive value on the industry, and it has following advantage at least:
1, LED road lamp light distribution system of the present invention utilizes each LED luminescence unit irradiation way in zone separately, and each zone that the light that the LED luminescence unit is sent is invested the illumination road surface has enlarged irradiated area;
2, LED road lamp light distribution system of the present invention, controlled the beam angle of all luminescence units of LED, and the hot spot that each luminescence unit forms on the road surface covers each self-corresponding zone, hot spot vertically distributes along road, laterally keep a certain proportion of width at road, the light that whole light distributing system sent satisfies the requirement of road lighting, and vertically the uniformity is more than 0.6;
3, LED road lamp light distribution system of the present invention, according to each LED luminescence unit of luminescent system angle of incidence of light degree and incidence point luminous intensity of controlling each LED luminescence unit on the road surface, can make even lighting on the shadow surface like this, the overall uniformity of road is more than 0.4;
4, LED road lamp light distribution system of the present invention, according to distance between luminescent system setting height(from bottom) and system and quantity, can adjust beam angle and incident angle, concentrated the projecting on the road surface of required illumination of light that the LED luminescence unit sends, improve the effective rate of utilization of light, thereby can significantly reduce cost, increase economic efficiency, on practicality of using and cost benefit, it is required to meet industry development really fully, quite has industrial utilization;
5, LED road lamp light distribution system of the present invention, use the LED illuminator of identical characteristics, the light distribution of each LED luminescence unit and Strength Changes are as long as can realize by changing dissimilar lens, really can reach the effect in the practicality, not only easy to use, do not need miscellaneous formality, and the processing of structure formation is easy especially, meet cost benefit, and have the value on the industry really, be suitable for industrial circle extensively to promote the use of;
6, LED road lamp light distribution system of the present invention, the angle of the adjustment of LED luminescence unit projecting direction being passed through mount pad just changes and can realize, and the another side of mount pad is provided with radiator simultaneously, can solve the heat dissipation problem of led light source;
7, structure of the present invention really has more technological progress than transitional street lamps light distributing system, and its particular structure feature and function also are far from the transitional street lamps light distributing system and can compare, have the multinomial effect of enhancement than the transitional street lamps light distributing system, and the progress on possessing skills;
In sum, the LED road lamp light distribution system of novelty of the present invention, can adapt to road, directional illumination areas such as tunnel are bigger, light source itself is various with irradiation target direction and variable in distance, light need be along road direction stretching longitudinally and the distribution requirement that laterally covers width of roadway at road, satisfied the light distribution requirements of road lighting, the curve of light distribution presents along road lateral shaft symmetry, the asymmetric bat wing of longitudinal axis, can illuminate the road surface effectively, be issued to even light distribution in the prerequisite that satisfies certain setting height(from bottom) and spacing, and can reduce led light source power, improved light utilization, make the LED road lamp light distribution system can be suitable for having different shadow surface roads, solve LED road lamp light distribution system heat dissipation problem simultaneously, thereby be suitable for practicality more.The present invention has above-mentioned plurality of advantages and practical value, no matter it all has bigger improvement on product structure or function, obvious improvement is arranged technically, and produced handy and practical effect, and the outstanding multinomial effect that has enhancement than the transitional street lamps light distributing system, thereby being suitable for practicality more, and having the extensive value of industry, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 a-1b is the structural representation of first preferred embodiment of the present invention.
Fig. 2 is the schematic diagram of a luminescence unit trend of purchasing road area among the present invention.
Fig. 3 is that adjacent luminescence unit is invested road area schematic diagram at an angle to each other among the present invention.
Fig. 4 is the front view of the present invention's first preferred embodiment.
Fig. 5 is the rearview of the present invention's first preferred embodiment.
Fig. 6 is the A-A cutaway view of Fig. 4 of the present invention.
Fig. 7 is the structural representation of mount pad of the present invention.
Fig. 8 a-8c is the forward and backward and cutaway view of structure of the present invention's the secondth preferred embodiment.
Fig. 9 is the structural representation of the present invention's the 3rd preferred embodiment.
Figure 10 a-10b is the structural representation of the present invention's the 4th preferred embodiment.
Figure 11 is the Illumination Distribution schematic diagram on luminescence unit irradiation road surface among the present invention the first-five embodiment.
Figure 12 is the Illumination Distribution schematic diagram on luminescence unit irradiation road surface in the present invention's second preferred embodiment.
The 1:LED luminescence unit
1a: luminescence unit 1b: luminescence unit
1c: luminescence unit 1d: luminescence unit
1e: luminescence unit 1f: luminescence unit
1g: luminescence unit 1h: luminescence unit
2: mount pad
3: stationary plane
3a: stationary plane 3b: stationary plane
3c: stationary plane 3d: stationary plane
3e: stationary plane 3f: stationary plane
3g: stationary plane 3h: stationary plane
4: substrate
41: real estate 42: real estate
5: cover plate 6: perforate
7: heat abstractor 8: center line
The specific embodiment
Reach technological means and the effect that predetermined goal of the invention is taked in order further to set forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to the LED road lamp light distribution system that foundation the present invention proposes, its specific embodiment, structure, feature and effect thereof, describe in detail as after.
Relevant aforementioned and other technology contents, characteristics and effect of the present invention can be known to present in the following detailed description that cooperates with reference to graphic preferred embodiment.By the explanation of the specific embodiment, when can being to reach technological means that predetermined purpose takes and effect to get one more deeply and concrete understanding to the present invention, yet appended graphic only provide with reference to the usefulness of explanation, be not to be used for the present invention is limited.
First embodiment sees also Fig. 1 a-1b, and shown in Fig. 2-7, the LED road lamp light distribution system of the present invention's first preferred embodiment, 16 luminescence units (as shown in Figure 6) and a mount pad 2 (shown in Fig. 1 b) are arranged, described mount pad 2 comprises inner surface and outer surface, be provided with 16 stationary planes (as shown in Figure 7) on the inner surface of mount pad 2, each luminescence unit 1 is installed on the stationary plane 3 by its installation base plate that carries 4, and luminescence unit 1 is made of led light source and the various lens of feature.The distribution of stationary plane 3 is along center line 8 symmetries, promptly 16 luminescence units are symmetrically distributed (as shown in Figure 4) along center line 8, luminescence unit 1a-1h is installed in corresponding stationary plane 3a-3h respectively and goes up (as Fig. 6, shown in Figure 7), each LED luminescence unit 1 is installed on the real estate 41 of corresponding with it substrate 4, and another real estate 42 of substrate 4 is installed on the stationary plane 3, real estate 41 is parallel faces with real estate 42, real estate 42 parallel with stationary plane 3a-3h separately (shown in Fig. 1 b).
Adjacent stationary plane 3 all is on the different planes arbitrarily, and become different Space Angle each other, the axis direction separately that is installed in the luminescence unit 1 on the respective fixation face 3 thus also forms staggered state each other, angle between the central shaft of LED luminescence unit 1 is between 5 °-40 ° (as shown in Figure 3), make the light that sends shine each zone of road surface, because street lamp needs certain setting height(from bottom) and spacing, the light that requires light distributing system to send is far away as far as possible illuminates the road surface, so luminescence unit 1 requires more than 50 ° to the angle of incidence of light degree of projection at a distance, the angle that is LED luminescence unit 1 central axis and irradiated plane is less than 40 ° (as shown in Figure 2), the incidence angle that needs only by a small margin in-plant the time just can illuminate the road surface, at this moment the angle of LED luminescence unit 1 central axis and irradiated plane is about 80 °, just can control the projecting direction of luminescence unit 1 by the inclination angle of controlling each stationary plane 3.
In order to solve luminescence unit 1 heat dissipation problem, to enclose with luminescence unit 1 corresponding heat abstractor 7 at the outer surface of mount pad 2 and to be fin, each radiating module area of dissipation meets LED necessary requirement (as Fig. 1 b, Fig. 5, shown in Figure 6).
Luminescence unit 1 has several light intensity and beam angle, far away when projection distance, incident angle is big, the horizontal illumination that luminescence unit 1 reaches on the road surface a long way off can reduce greatly, this just requires the LED luminescence unit 1 of remote projection to have very big light intensity, in order to shine at a distance, adopt the light beam of high optically focused, because the scope that the light beam of high optically focused can cover is narrower, so need 8 luminescence units 1 common, form a far lighting band according to at a distance.This luminescent system vertically downward near, irradiation distance is near, incident angle is little, luminous intensity requires lower, the LED luminescence unit that disposes 4 angles pencil of ray and 4 middle beam angles can meet the demands, as shown in figure 11, press the distance of light distributing system apart from shadow surface, the road surface be divided into respect to this light distributing system symmetry far away, in, nearly 5 light bands, each light band distributes 4-8 luminescence unit 1 to project its surface, so just can present Illumination Distribution field of illumination relatively uniformly on the road surface.
As Fig. 6, shown in Figure 7, according to a kind of LED road lamp light distribution system of the present invention, with symmetry axis A-A left-half is example, angle between the plane of stationary plane 3a and stationary plane 3b is 18.7 °, the angle of stationary plane 3a and road shadow surface is 44 °, the angle of flat stationary plane 3b and road shadow surface is 35 °, the angle of stationary plane 3c and road shadow surface is 10 °, angle between the plane of stationary plane 3d and stationary plane 3e is 35.4 °, angle between the plane of stationary plane 3e and stationary plane 3f is 9.8 °, angle between the plane of stationary plane 3f and stationary plane 3g is 13.6 °, angle between the plane of stationary plane 3g and stationary plane 3h is 8 °, the angle of flat stationary plane 3d and road shadow surface is 36 °, the angle of stationary plane 3e and road shadow surface is 50 °, the angle of stationary plane 3f and road shadow surface is 58 °, the angle of stationary plane 3g and road shadow surface is 58 °, the angle of stationary plane 3h and road shadow surface is 50 °, luminescence unit 1a is placed on the stationary plane 3a, luminescence unit 1b is placed on the stationary plane 3b, luminescence unit 1c is placed on the stationary plane 3c, by that analogy, corresponding luminescence unit is placed on the corresponding stationary plane, the light that each luminescence unit is sent is invested each position on the road lighting band, Illumination Distribution realizes uniform illumination profile as shown in figure 11.
Luminescence unit 1 is except emitting beam on assigned direction, also have a spot of veiling glare to send from rims of the lens, so reflector plate 5 is set on the luminescence unit mounting seat, be provided with perforate 6 with LED luminescence unit 1 opposite position place on the cover plate 5, spurious rays can reflex to the road surface by reflector plate like this, has reduced the loss (as Fig. 1 a, shown in Figure 4) of light.
Above-mentioned is a preferred forms of the present invention, mainly be that lighting requirement according to specific road surface comes the number of design plane plate and they angulation each other, so the technical staff of the technical field of the invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from design of the present invention or surmount the defined scope of appended claims.
Second embodiment
Shown in Fig. 8 a-8c, according to a kind of LED road lamp light distribution system of the present invention, 27 luminescence units 1 and a mount pad 2 are arranged, described mount pad 2 comprises inner surface and outer surface, on the inner surface of mount pad 2, be provided with 27 stationary planes 3, luminescence unit 1 is installed on the stationary plane 3 by its installation base plate that carries 4, and luminescence unit 1 is made of led light source and the various lens of feature.The distribution of stationary plane 3 is along center line 8 symmetries.
Adjacent stationary plane 3 all is on the different planes arbitrarily, and become different Space Angle each other, the axis direction separately that is installed in the luminescence unit 1 on the respective fixation face 3 thus also forms staggered state each other, angle between the central shaft is between 5 °-40 °, make the light that sends shine each zone of road surface, these stationary planes 3 are the class notch cuttype and arrange, because street lamp needs certain setting height(from bottom) and spacing, the light that light distributing system sends is far away as far as possible illuminates the road surface, so luminescence unit 1 requires more than 55 ° to the angle of incidence of light degree of projection at a distance, the angle that is LED luminescence unit 1 central axis and irradiated plane is less than 35 °, as long as incidence angle by a small margin just can illuminate the road surface, at this moment the angle of LED luminescence unit 1 central axis and irradiated plane is about 60 ° in-plant the time.Just can control the projecting direction of luminescence unit 1 by the inclination angle of controlling each stationary plane 3.
Luminescence unit 1 has several light intensity and beam angle, because projection distance is far away, incident angle is big, so the horizontal illumination that luminescence unit 1 reaches on the road surface a long way off can reduce greatly, this just requires the LED luminescence unit 1 of remote projection to have very big light intensity, in order to shine at a distance, adopt the light beam of high optically focused, because the scope that the light beam of high optically focused can cover is narrower, so need 12 luminescence units 1 common, form a far lighting band according to at a distance.This luminescent system vertically downward near, irradiation distance is near, incident angle is little, luminous intensity requires lower, the LED luminescence unit that disposes 3 angles pencil of ray and 2 middle beam angles can meet the demands, as shown in figure 12, press the distance of light distributing system apart from shadow surface, the road surface be divided into far, in, nearly 3 light bands, each light band distributes several luminescence units 1 to project its surface, so just can present Illumination Distribution field of illumination relatively uniformly on the road surface.
Luminescence unit 1 is except emitting beam on assigned direction, also have a spot of veiling glare to send from rims of the lens, so reflector plate 5 is set on the luminescence unit mounting seat, be provided with perforate 6 (shown in Fig. 8 a, Fig. 8 c) with LED luminescence unit 1 opposite position place on the cover plate 5, spurious rays can reduce the loss of light by reflector plate 5 according to the road surface like this.
In order to solve luminescence unit 1 heat dissipation problem, directly mount pad 2 outer surfaces are processed into the horizontal strip heat radiating fin structure that is beneficial to heat radiation and form heat abstractor 7 (shown in Fig. 8 b, Fig. 8 c).
Because the variation of condition of road surface, the quantity of stationary plane 3 and angle also can change thereupon, shown in Fig. 8 a, Fig. 8 c, increase the quantity and the angle changing of stationary plane 3, and native system can be suitable for wideer, longer road lighting.
27 stationary planes and 27 corresponding luminescence units are arranged among Fig. 8 a, Fig. 8 c, the angle of stationary plane and road shadow surface that wherein is used for shining the luminescence unit in distance light district increases 3-10 ° than embodiment 1, quantity has also increased by 4, Zhong Guang has adopted in the district luminescence unit of middle light beam+arrow beam of light, the dipped beam district has adopted the mode of the such combination of the luminescence unit of middle light beam+angle pencil of ray, and concrete luminescence unit quantity and angle are arranged and can be done suitably to adjust according to the situation of shadow surface.Other structures are with embodiment 1.
Above-mentioned is a preferred forms of the present invention, mainly be that lighting requirement according to specific road surface comes the number of design plane plate and they angulation each other, so the technical staff of the technical field of the invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from design of the present invention or surmount the defined scope of appended claims.
The 3rd embodiment
As shown in Figure 9, by each the regional incidence point among the 1st embodiment, keep each LED luminescence unit 1 crevice projection angle, the luminous intensity of correspondence constant, the adjacent position is done suitably to adjust, the shape that mount pad 2 is designed to protrude outward, the light distribution effect that reaches is consistent with the 1st embodiment.
Embodiment 4
Shown in Figure 10 a-10b, according to a kind of LED road lamp light distribution system of the present invention, a luminescence unit 1 and mount pad 2 are arranged, described mount pad 2 comprises inner surface and outer surface, it on the inner surface of mount pad 2 stationary plane 3, stationary plane 3 is planes of an integral body, be used for placing the substrate 4 of the column shown in Figure 10 a, luminescence unit 1 is fixed on the real estate 41, these real estates 41 have different inclinations angle, the 42 equal horizontal settings of substrate another side are on the stationary plane 3 of mount pad 2, and luminescence unit 1 is made of led light source and the various lens of feature.The distribution of substrate 4 is along center line 8 symmetries (shown in Figure 10 b).
Adjacent real estate 41 all is on the different planes arbitrarily, and become different Space Angle each other, the axis direction separately that is installed in the luminescence unit 1 on the corresponding real estate 41 thus also forms staggered state each other, angle between the luminescence unit central shaft is between 5 °-40 °, make the light that sends shine each zone of road surface, because street lamp needs certain setting height(from bottom) and spacing, the light that light distributing system sends is far away as far as possible illuminates the road surface, so luminescence unit 1 requires more than 50 ° to the angle of incidence of light degree of projection at a distance, the angle that is LED luminescence unit 1 central axis and irradiated plane is 40 °, as long as incidence angle by a small margin just can illuminate the road surface, at this moment the angle of LED luminescence unit 1 central axis and irradiated plane is about 60 ° in-plant the time.Just can control the projecting direction of luminescence unit 1 by the inclination angle of controlling each real estate 41.
In order to solve luminescence unit 1 heat dissipation problem, enclose and luminescence unit 1 corresponding heat abstractor 7 at the outer surface of mount pad 2, it is a fin, also fin can be set on the substrate 4, and LED illuminator heat is derived (shown in Figure 10 a) by substrate and back fin.
Luminescence unit 1 has 3 kinds of light intensity and beam angle, because projection distance is far away, incident angle is big, so the horizontal illumination that luminescence unit 1 reaches on the road surface a long way off can reduce greatly, this just requires the LED luminescence unit 1 of remote projection to have very big light intensity, in order to shine at a distance, adopt the light beam of high optically focused, because the scope that the light beam of high optically focused can cover is narrower, so need 8 luminescence units 1 common, form a far lighting band according to at a distance.This luminescent system vertically downward near, irradiation distance is near, incident angle is little, luminous intensity requires lower, the LED luminescence unit that disposes a few angle pencil of ray and middle beam angle can meet the demands, as shown in figure 11, the method of salary distribution is with embodiment 1 narration, press the distance of light distributing system apart from shadow surface, the road surface be divided into far, in, nearly several light bands, each light band distributes plurality of luminescence units 1 to project its surface, so just can present Illumination Distribution field of illumination relatively uniformly on the road surface.
The 5th embodiment
According to a kind of LED road lamp light distribution system of the present invention, 16 luminescence units 1 and a mount pad 2 are arranged, described mount pad 2 comprises inner surface and outer surface, on the inner surface of mount pad 2, be provided with 16 stationary planes 3, luminescence unit 1 is directly installed on the stationary plane 3, and luminescence unit 1 is made of led light source and the various lens of feature.Adjacent stationary plane 3 all is on the different planes arbitrarily, and become different Space Angle each other, the axis direction separately that is installed in the luminescence unit 1 on the respective fixation face 3 thus also forms staggered state each other, angle between the central shaft is between 5 °-40 °, make the light that sends shine each zone of road surface, because street lamp needs certain setting height(from bottom) and spacing, the light that requires light distributing system to send is far away as far as possible illuminates the road surface, so luminescence unit 1 requires more than 50 ° to the angle of incidence of light degree of projection at a distance, the angle that is LED luminescence unit 1 central axis and irradiated plane is 40 °, as long as incidence angle by a small margin just can illuminate the road surface, at this moment the angle of LED luminescence unit 1 central axis and irradiated plane is about 80 ° in-plant the time.Just can control the projecting direction of luminescence unit 1 by the inclination angle of controlling each stationary plane 3.
In order to solve luminescence unit 1 heat dissipation problem, to enclose and luminescence unit 1 corresponding heat abstractor 7 at the outer surface of mount pad 2, it is a fin 7, the fin area meets the LED necessary requirement.
Luminescence unit 1 has 3 kinds of light intensity and beam angle, because projection distance is far away, incident angle is big, so the horizontal illumination that luminescence unit 1 reaches on the road surface a long way off can reduce greatly, this just requires the LED luminescence unit 1 of remote projection to have very big light intensity, in order to shine at a distance, adopt the light beam of high optically focused, because the scope that the light beam of high optically focused can cover is narrower, so need 8 luminescence units 1 common, form a far lighting band according to at a distance.This luminescent system vertically downward near, irradiation distance is near, incident angle is little, luminous intensity requires lower, the LED luminescence unit that disposes 4 angles pencil of ray and 4 middle beam angles can meet the demands, as shown in figure 11, press the distance of light distributing system apart from shadow surface, the road surface be divided into far, in, nearly 5 light bands, each light band distributes plurality of luminescence units 1 to project its surface, so just can present Illumination Distribution field of illumination relatively uniformly on the road surface.Other structures are with embodiment 1.
The technological innovation of the LED road lamp light distribution system of the present invention that above-mentioned structure like this constitutes all has many saving graces for technical staff of the same trade now, and the progressive that possesses skills really.
As mentioned above, substantially positional alignment by control LED luminescence unit and the optical axis direction of being contemplated that of the present invention reaches the different incident angle and the irradiated areas of each LED luminescence unit of LED road lamp light distribution system, and become a kind of new design that quite has practicality and progressive, be suitable for the industrial circle wide popularization and application.But in technical field of the present invention,, can improve other exercisable embodiment of the present invention as long as possess the most basic knowledge.In the present invention substantive technical scheme has been proposed the patent protection request, its protection domain should comprise all variation patterns with above-mentioned technical characterstic.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.

Claims (14)

1, a kind of LED road lamp light distribution system, comprise several LED luminescence units (1) and LED luminescence unit mount pad (2), it is characterized in that the zone that needs illuminate is divided into some zonules, described each LED luminescence unit (1) becomes corresponding angular illumination with institute each zonule of irradiated plane one by one from the height of regulation, form several light bands, make the uniform light distributing system of lighting on the shadow surface.
2, LED road lamp light distribution system according to claim 1, it is characterized in that having at least two LED luminescence units (1) central axis direction to invest from this light distributing system distance shadow surface appointed area farthest, and the angle of LED luminescence unit (1) central axis and irradiated plane is 15 °-40 °, and wherein having a trend of purchasing at least is maximum in all luminescence units from the light intensity of the LED luminescence unit (1) of this light distributing system distance shadow surface appointed area farthest; Have at least a LED luminescence unit (1) central axis direction to invest, and the angle of central axis and irradiated plane is 55 °-90 ° from the nearest shadow surface appointed area of this light distributing system.
3, LED road lamp light distribution system according to claim 1 is characterized in that having at least in the described LED road lamp light distribution system LED luminescence unit (1) composition that comprises that three kinds of luminous intensities and corresponding beam angle constitute.
4, LED road lamp light distribution system according to claim 1, it is characterized in that having at least the angle between three LED luminescence unit (1) central shafts and adjacent separately LED luminescence unit (1) central shaft is 5 °-40 °.
5, LED road lamp light distribution system according to claim 1, it is characterized in that described mount pad (2) comprises inner surface and outer surface, on the inner surface of mount pad (2), be provided with a plurality of stationary planes (3), adjacent stationary plane (3) all is on the different planes arbitrarily, and becomes different Space Angle each other.
6, LED road lamp light distribution system according to claim 1 is characterized in that luminescence unit mount pad (2) is provided with cover plate (5), and described cover plate (5) is gone up and LED luminescence unit (1) opposite position place is provided with perforate (6).
7, the described LED road lamp light distribution system of claim 1 is characterized in that luminescence unit mount pad (2) back is provided with heat abstractor (7).
8, according to any described LED road lamp light distribution system among the claim 1-7, it is characterized in that described each LED luminescence unit (1) is installed on the real estate (41) of corresponding with it substrate (4), and another real estate (42) of substrate 4 is installed on the stationary plane (3).
9, according to any described LED road lamp light distribution system among the claim 1-7, it is characterized in that the led light source of described each LED luminescence unit (1) is directly installed on the corresponding with it stationary plane (3).
10, LED road lamp light distribution system according to claim 8 is characterized in that having the real estate (41) of two substrates (4) and the angle of irradiated plane at least is 50 °-75 °.
11, LED road lamp light distribution system according to claim 8, it is characterized in that having at least the real estate (41) of three substrates (4) and the angle of the real estate (41) of adjacent substrate (4) separately is 5 °-40 °.
12, a kind of LED road lamp light distribution system according to claim 9 is characterized in that having the angle of two stationary planes and irradiated plane at least is 50 °-75 °.
13, a kind of LED road lamp light distribution system according to claim 9 is characterized in that described to have the angle between three stationary planes (3) and the adjacent separately stationary plane (3) at least be 5 °-40 °.
14, a kind of LED road lamp light distribution system according to claim 7 it is characterized in that heat abstractor (7) for separately discrete or fuse with mount pad (2), and its profile is the general solid that sheet or list structure are formed.
CNA2008100018781A 2008-01-17 2008-01-17 LED road lamp light distribution system Pending CN101487573A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BG1370U1 (en) * 2010-06-16 2010-10-29 Самел-90 Еад A regulated illuminant
CN102474955A (en) * 2009-08-05 2012-05-23 皇家飞利浦电子股份有限公司 Lighting system with concurrent adjustment of intensity and orientation
WO2012090108A1 (en) * 2010-12-30 2012-07-05 Koninklijke Philips Electronics N.V. A lens and a lighting apparatus comprising such a lens.
CN102686941A (en) * 2009-12-21 2012-09-19 马丁专业公司 Cooling module for multiple light source projecting device
CN103075687A (en) * 2013-01-22 2013-05-01 慈溪市中发灯饰有限公司 Light emitting diode (LED) street lamp
RU2672643C2 (en) * 2014-03-28 2018-11-16 Асахи Раббер Инк. Light distribution lens
CN110720011A (en) * 2017-06-13 2020-01-21 阿莫善斯有限公司 Lens cover and LED lighting device with lens cover
CN110726095A (en) * 2019-10-18 2020-01-24 上海智光慧芯照明科技有限公司 LED illumination lamp and street lamp

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102474955A (en) * 2009-08-05 2012-05-23 皇家飞利浦电子股份有限公司 Lighting system with concurrent adjustment of intensity and orientation
CN102686941A (en) * 2009-12-21 2012-09-19 马丁专业公司 Cooling module for multiple light source projecting device
US8888294B2 (en) 2009-12-21 2014-11-18 Martin Professional Aps Cooling module for multiple light source projecting device
CN102686941B (en) * 2009-12-21 2015-11-25 马丁专业公司 For the refrigerating module of multiple light courcess projection arrangement
BG1370U1 (en) * 2010-06-16 2010-10-29 Самел-90 Еад A regulated illuminant
WO2012090108A1 (en) * 2010-12-30 2012-07-05 Koninklijke Philips Electronics N.V. A lens and a lighting apparatus comprising such a lens.
CN103075687A (en) * 2013-01-22 2013-05-01 慈溪市中发灯饰有限公司 Light emitting diode (LED) street lamp
CN103075687B (en) * 2013-01-22 2015-10-21 慈溪市中发灯饰有限公司 A kind of LED street lamp
RU2672643C2 (en) * 2014-03-28 2018-11-16 Асахи Раббер Инк. Light distribution lens
CN110720011A (en) * 2017-06-13 2020-01-21 阿莫善斯有限公司 Lens cover and LED lighting device with lens cover
CN110726095A (en) * 2019-10-18 2020-01-24 上海智光慧芯照明科技有限公司 LED illumination lamp and street lamp
CN110726095B (en) * 2019-10-18 2021-12-10 上海智光慧芯照明科技有限公司 LED illumination lamp and street lamp

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