CN207880756U - A kind of LED street lamp lens - Google Patents
A kind of LED street lamp lens Download PDFInfo
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- CN207880756U CN207880756U CN201820270092.9U CN201820270092U CN207880756U CN 207880756 U CN207880756 U CN 207880756U CN 201820270092 U CN201820270092 U CN 201820270092U CN 207880756 U CN207880756 U CN 207880756U
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- Prior art keywords
- street lamp
- curved surface
- led street
- road
- led
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Abstract
The utility model is related to a kind of lens more particularly to a kind of LED street lamp lens.The LED street lamp lens include medial surface curved surface and lateral surface curved surface；The medial surface curved surface and lateral surface curved surface are in symmetry status on the direction along lane flow；The center of gravity of the lateral surface curved surface is biased to road direction, and the lateral surface curved surface is bent to road direction.The utility model be suitable for a variety of bars away from and big demand of the bar away from road lighting, make LED street lamp that can form good hot spot on road surface, improve LED street lamp road illumination the uniformity；The utility model effectively increases the illumination length of single led street lamp, reduces the usage quantity of LED street lamp, while reducing the quantity of street lamp post, reduces the installation cost of road LED street lamp in unit length；The utility model reduces the maintenance of road LED street lamp and maintenance cost in unit length.
Description
Technical field
The utility model is related to a kind of lens more particularly to a kind of LED street lamp lens.
Background technology
With the continuous improvement of single led (Light Emilting Diode, light emitting diode) luminous flux, LED is shining
The application in bright field is more and more wider, but LED and conventional light source be there is prodigious difference, the optical design of traditional illumination system with
Structure cannot give full play to the advantage of LED light source.In recent years, light distribution design studies are carried out to LED by curved surface have developed rapidly, and
Obtain good achievement.Curved surface is applied in uniformity requirement not high large area lighting or headlight reflector more at present, with
And be used for photoelectricity and communication product, but a variety of bars away from and big bar it is bad away from the application effect in road lighting field, exist
Road illumination is uneven, bar away from it is small the problems such as.
Invention content
The technical problem to be solved by the utility model is to provide a kind of reasonable in design, raising LED street lamps on road surface
The LED street lamp lens of the uniformity of illumination.
Technical solution is used by the utility model solves above-mentioned technical problem：
A kind of LED street lamp lens, it is characterised in that：Including medial surface curved surface and lateral surface curved surface；The medial surface curved surface
With lateral surface curved surface in symmetry status on the direction along lane flow；The center of gravity of the lateral surface curved surface is biased to road side
To, and the lateral surface curved surface is bent to road direction.
The utility model be suitable for a variety of bars away from and big demand of the bar away from road lighting, make LED street lamp can shape on road surface
At good hot spot, improve LED street lamp road illumination the uniformity；Increase the road lighting covering of single led street lamp
Length can efficiently reduce the usage quantity of LED street lamp, while can reduce corresponding pole count, also reached and reduced investment outlay
Purpose.
Preferably, the curvature of the medial surface curved surface is 0.016-0.055, and the curvature of the lateral surface curved surface is 0.005-
0.165.With this condition, the refraction of the lens on light is more preferable, can make LED street lamp that can form good hot spot on road surface.
Preferably, on the direction along lane flow, the height of curve of the lateral surface curved surface is from the center to both sides
It first reduces, then increases, be finally reduced to mounting surface.This is designed for auxiliary control lens away from height than in suitable range.
It is highly preferred that on the direction along lane flow, the curve apogee distance mounting surface of the lateral surface curved surface
Height centered on point apart from 1.10-1.20 times of mounting surface height.With this condition, auxiliary realizes big bar away from road lighting
Effect is preferable.
It is highly preferred that the distance between curve peak and central point of the lateral surface curved surface/intermediate point and mounting surface
The distance between ratio be 0.45-0.50.With this condition, auxiliary realizes that big effect of the bar away from road lighting is preferable.
Preferably, on the direction perpendicular to lane flow, the curve apogee distance mounting surface of the lateral surface curved surface
Height centered on point apart from 1.05-1.15 times of mounting surface height.With this condition, the effect on light deviation road surface is preferable,
The utilization rate of light is higher.
Preferably, the nearly ends the LED setting of the medial surface curved bottom portion is fluted.When the design prevents installation LED, the lens
LED light-emitting surfaces are in direct contact, and then LED is caused to damage；It is also used for avoiding the solder joint of LED and connects lead, facilitate the peace of LED
Dress.
Preferably, which is symmetrical with light along lane flow direction, and semi-gloss intensity be 150 °-
160°.This is designed so that street lamp is when big bar is away from road, still there is preferable uniformity of illuminance.
The utility model compared with the existing technology has the following advantages and effect：
1, the utility model be suitable for a variety of bars away from and big demand of the bar away from road lighting, make LED street lamp energy on road surface
Form good hot spot, improve LED street lamp road illumination the uniformity；
2, the utility model effectively increases the illumination length of single led street lamp, reduces the use number of LED street lamp
Amount, while reducing the quantity of street lamp post, reduce the installation cost of road LED street lamp in unit length；
3, the utility model reduces the maintenance of road LED street lamp and maintenance cost in unit length.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the projection structure schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of Fig. 1 section A-As.
Fig. 3 is the structural schematic diagram of the sections Fig. 1 X-X.
Fig. 4 is on the directions light distribution C0/C180, and the utility model and light move towards simulation schematic diagram.
Fig. 5 is on the directions light distribution C90/C270, and the utility model and light move towards simulation schematic diagram.
Fig. 6 is the actual measurement curve of light distribution, unit cd.
Fig. 7 is actual measurement plane equiluminous curve.
Fig. 8 is that light pole height is 10m, when two lamp spacing are 60m, road lighting illumination contour.
Fig. 9 is the structural schematic diagram of the utility model.
Label declaration：
1, medial surface curved surface；2, lateral surface curved surface；3, center；4, mounting surface；5、LED；6, perpendicular to lane flow
The curve peak of direction superolateral surface curved surface；7, in the curve peak of the direction superolateral surface curved surface along lane flow；
8, groove.
Specific implementation mode
The utility model is described in further detail with reference to embodiment, following embodiment is to the utility model
Explanation and the utility model is not limited to following embodiment.
The lens of the utility model cooperate with LED 5 (Light-Emitting Diode, light emitting diode), the two
LED street lamp is collectively constituted with lamp stand.5 one sides of close LED are medial surface curved surface 1 on the inside of the lens, and the one side far from LED 5 is
Lateral surface curved surface 2.
Free form surface is curved surface that is most complicated in engineering and frequently encountering.The shape of industrial products can generally be divided into two
Class is made of this two class：One kind is only to be made of such as plane, cylindrical surface, circular conical surface, spherical surface elementary analytic surface；It is another
Class is cannot to be made of elementary analytic surface, and by the i.e. so-called free curve curved surface of curve and surface that complex way freely changes
Composition.
In Fig. 1, section A-A be along lane flow direction (directions light distribution C0/C180), section X-X be perpendicular to
The direction (directions light distribution C90/C270) of lane flow.
In the present invention, definition lens longitudinal direction peak ratio is the curve peak of facies digitales laterales manus curved surface 2 in
The distance between the distance between heart 3/intermediate point and mounting surface 4, the surface characteristics for embodying the lens；And in the lens
Peak is easier to measure, and lens longitudinal direction peak ratio is easy to calculate.
C0 °/C180 ° of horizontal center line is the line of demarcation in roadside and room side, and the luminous flux in roadside refers to what LED 5 was sent out
Light road side luminous flux, the luminous flux on room side refer to light that LED 5 is sent out the reversed side of road luminous flux,
Embodiment 1：
As shown in Fig. 1 and Fig. 9, a kind of LED street lamp lens, the lens are glass material, and in bulk, which includes inside
Face curved surface 1 and lateral surface curved surface 2, and after installing LED street lamp, medial surface curved surface 1 and lateral surface curved surface 2 are along vehicle
It is in symmetry status on the direction of road wagon flow.As shown in Figure 4 and Figure 6, it on the directions light distribution C0/C180, is sent out by LED 5 bright
Primary type light distribution passes through the refraction of the medial surface curved surface 1 and lateral surface curved surface 2 of the street lamp toroidal lens, realizes light light respectively
The diverging of line and preferable bat aerofoil profile light distribution, improve the uniformity of road lighting.As shown in Figure 5 and Figure 6, in light distribution C90/
On the directions C270, the Lambertian light distribution sent out by LED 5, respectively by the medial surface curved surface 1 of the street lamp toroidal lens and outside
The refraction of side curved surface 2 realizes the cohesion of light light, improves the ratio that 5 light of LED is irradiated to road surface, improves flat
Equal illumination.
The medial surface curved surface 1 of the utility model is spill free form surface, and lateral surface curved surface 2 is convex free form surface.Lens
Refractive index generally between 1.4 to 1.6, the refractive index of air is 1, according to Snell laws, in general light from air into
Light emitting angle can become smaller after entering lens, from lens interior enter air after light emitting angle can become larger.So in the present embodiment, it is recessed
Shape free form surface can so that the change of light emitting angle reduces in a small amount after air enters lens for light that LED 5 sends out；Convex is free
After curved surface can make the light that LED 5 is sent out enter air inside the street lamp toroidal lens, the change of light emitting angle increases significantly.
It is increased significantly by a small amount of changes reduced with light emitting angle of the change of light emitting angle, the utility model is in the side along lane flow
To realizing light light and preferably dissipate；On the direction perpendicular to lane flow, it is preferably interior to realize light light
It is poly-.
After installing street lamp, medial surface curved surface 1 is tilted to lamp stand direction, and lateral surface curved surface 2 is tilted to road direction.
The center of gravity of lateral surface curved surface 2 is biased to road direction, and entire lateral surface curved surface 2 is bent to road direction.
Thickness of the lens close to road side is more than the thickness far from road side so that the light light that LED 5 is sent out
Line is deviated to road side, it may also be said to is that the light light that LED 5 is sent out is deviated to the direction of lane flow, be substantially increased
The illumination of street lamp.Thickness in the present invention is the overall permanence for characterizing lens, is referred specifically in identical base area
In the case of, volume of the lens close to road side and the volume far from road side.
In the present invention, single led 5 the mode that single led chip is individually encapsulated can be used, can also be used multiple
The mode of LED chip integration packaging.
As shown in figure 4, single led 5 and single lens one light emitting die of composition, street lamp can be only comprising there are one hairs
Optical mode group can also include multiple illuminating modules.
Embodiment 2：
The present embodiment is further limiting for inner surface sides curved surface 1 and lateral surface curved surface 2, main to limit medial surface curved surface 1
It also determines that there is different curvature in the different position of the lens due to the complexity of curved surface with the curvature of lateral surface curved surface 2, has
Body is that the curvature range of the different location of medial surface curved surface 1 is 0.016-0.055, the curvature of the different location of lateral surface curved surface 2
Ranging from 0.005-0.165.With this condition, the refraction of the lens on light is more preferable, can make LED street lamp that can be formed on road surface good
Good hot spot.
Embodiment 3：
As described in Example 2, it differs only on the direction along lane flow, the curve of lateral surface curved surface 2 is high
Degree is first reduced from center 3 to both sides, then is increased, and mounting surface 4 is finally reduced to.The center 3 of the utility model is facies digitales laterales manus
The center of curved surface 2, mounting surface 4 is a smooth plane, but the mounting surface 4 is not included in the lens of the utility model；LED
The accessory structure lens pressing plate pressure of street lamp on that plane, for fixing lens.
By to lens light distribution characteristic the result of actual measurement shows that, be the high-power integrated of 25*40mm in 5 package dimensions of LED
Under conditions of encapsulation, lens away from height than being 1 to 5.8 when, with good rectangular light spot, as shown in Figure 7.In the utility model
Away from height than refer in plane equiluminous curve, " street lamp mounting height " with " 10% equiluminous curve is along lane flow
Ratio between length on direction ".
Embodiment 4：
As described in Example 3, the curve highest in the direction superolateral surface curved surface along lane flow is differed only in
3 apart from 1.10 times of 4 height of mounting surface centered on 7 height apart from mounting surface 4 of point.With this condition, auxiliary realize big bar away from
The effect of road lighting is preferable.
Embodiment 5：
As described in Example 3, the curve highest in the direction superolateral surface curved surface along lane flow is differed only in
3 apart from 1.20 times of 4 height of mounting surface centered on 7 height apart from mounting surface 4 of point.With this condition, auxiliary realize big bar away from
The effect of road lighting is preferable.
Embodiment 6：
As described in Example 3, the curve highest in the direction superolateral surface curved surface along lane flow is differed only in
3 apart from 1.15 times of 4 height of mounting surface centered on 7 height apart from mounting surface 4 of point.With this condition, auxiliary realize big bar away from
The effect of road lighting is preferable.
In the present embodiment, height of the curve peak 7 of lateral surface curved surface apart from mounting surface 4 is 25.43mm, center 3
Height apart from mounting surface 4 is 22.07mm.
Embodiment 7：
As described in Example 4, it is 0.45 to differ only in lens longitudinal direction peak ratio.With this condition, auxiliary is real
Now effect of the big bar away from road lighting is preferable.
Embodiment 8：
As described in Example 5, it is 0.50 to differ only in lens longitudinal direction peak ratio.With this condition, auxiliary is real
Now effect of the big bar away from road lighting is preferable.
Embodiment 9：
As described in Example 6, it is 0.475 to differ only in lens longitudinal direction peak ratio.With this condition, auxiliary is real
Now effect of the big bar away from road lighting is preferable.
In the present embodiment, the distance between the curve peak 7 of lateral surface curved surface and center 3 are 25.65mm, intermediate point
The distance between mounting surface 4 is 54mm.
Embodiment 10：
If implemented shown in 3, the curve highest in the direction superolateral surface curved surface perpendicular to lane flow is differed only in
3 apart from 1.05 times of 4 height of mounting surface centered on 6 height apart from mounting surface 4 of point.With this condition, light is biased to road surface
Effect is preferable, and the utilization rate of light is higher.
Embodiment 11：
If implemented shown in 3, the curve highest in the direction superolateral surface curved surface perpendicular to lane flow is differed only in
3 apart from 1.15 times of 4 height of mounting surface centered on 6 height apart from mounting surface 4 of point.With this condition, light is biased to road surface
Effect is preferable, and the utilization rate of light is higher.
Embodiment 12：
If implemented shown in 3, the curve highest in the direction superolateral surface curved surface perpendicular to lane flow is differed only in
3 apart from 1.10 times of 4 height of mounting surface centered on 6 height apart from mounting surface 4 of point.With this condition, light is biased to road surface
Effect is preferable, and the utilization rate of light is higher.
In the present embodiment, height of the curve peak 6 of medial surface curved surface apart from mounting surface 4 is 24.36mm, center 3
Height apart from mounting surface 4 is 22.07mm.
Embodiment 13：
As described in Example 1, nearly 5 ends the LED setting fluted 8 in 1 bottom of medial surface curved surface is differed only in, prevents from pacifying
When filling LED 5, which is in direct contact 5 light-emitting surfaces of LED, and then causes to damage to LED 5；It is also used for avoiding the solder joint of LED 5
With connect lead, facilitate the installation of LED 5.
It can also be in the present invention and fluted 8 be arranged on lateral surface；Can also be to be provided on lateral surface curved surface 2
Boss is arranged fluted 8 on medial surface curved surface 1；It can also be and be arranged fluted 8 on lateral surface curved surface 2, on medial surface curved surface 1
It is provided with boss；It more can be the structure that other can avoid the solder joint of LED 5 and connect lead, LED 5 is facilitated to install.
Embodiment 14：
As described in Example 1, it is symmetrical with light to differ only in the lens along lane flow direction, and
Semi-gloss intensity is 150 °.This is designed so that street lamp is when big bar is away from road, still there is preferable uniformity of illuminance.
Embodiment 15：
As described in Example 1, it is symmetrical with light to differ only in the lens along lane flow direction, and
Semi-gloss intensity is 160 °.This is designed so that street lamp is when big bar is away from road, still there is preferable uniformity of illuminance.
Embodiment 16：
As described in Example 1, it is symmetrical with light to differ only in the lens along lane flow direction, and
Semi-gloss intensity is 156 °.This is designed so that street lamp is when big bar is away from road, still there is preferable uniformity of illuminance.
By the LED street lamp lens survey light distribution IES texts import DIALux lighting design softwares, to road lighting effect into
Row simulation.When road conditions are：It is 0 ° to select the pattern of lighting of Bilateral Symmetry, road width 22.5m, the lamp installation elevation angle,
When pole height is 10m, different two lamp clipping rooms are calculated away from the uniformity of illuminance reached, as shown in the table：
The result shows that national road lighting mark can be met in a wide range of interior of 25m-65m in the longitudinally mounted spacing of two lamps
Accurate requirement (latest edition country Lighting Design of Urban Road standard CJJ45-2015, to the minimum of the uniformity of illuminance of trunk roads
Value requires as 0.4), therefore can meet the lighting requirement of most roads；Under conditions of the longitudinally mounted spacing of two lamps is 60m,
Still there is 0.520 uniformity of illuminance.
Furthermore, it is necessary to illustrate, the specific embodiment described in this specification, the shape of parts and components is named
Title etc. can be different.The equivalent or simple change that all structure, feature and principles according to described in the utility model patent concept are done,
It is included in the protection domain of the utility model patent.Those skilled in the art of the present invention can be to being retouched
The specific embodiment stated does various modifications or additions or substitutes by a similar method, without departing from the utility model
Structure or beyond the scope defined by this claim, all should belong to the protection range of the utility model.
Claims (8)
1. a kind of LED street lamp lens, it is characterised in that：Including medial surface curved surface (1) and lateral surface curved surface (2)；The medial surface
Curved surface (1) and lateral surface curved surface (2) are in symmetry status on the direction along lane flow；The lateral surface curved surface (2)
Center of gravity is biased to road direction, and the lateral surface curved surface (2) is bent to road direction.
2. a kind of LED street lamp lens according to claim 1, it is characterized in that：The curvature of the medial surface curved surface (1) is
The curvature of 0.016-0.055, the lateral surface curved surface (2) are 0.005-0.165.
3. a kind of LED street lamp lens according to claim 2, it is characterized in that：It is described on the direction along lane flow
The height of curve of lateral surface curved surface (2) is first reduced from center (3) to both sides, then is increased, and mounting surface (4) is finally reduced to.
4. a kind of LED street lamp lens according to claim 3, it is characterized in that：The outside on the direction along lane flow
The 1.10-1.20 of (3) apart from mounting surface (4) height centered on height of the curve peak (7) of face curved surface apart from mounting surface (4)
Times.
5. a kind of LED street lamp lens according to claim 4, it is characterized in that：The curve peak of the lateral surface curved surface
The ratio of the distance between the distance between center (3)/intermediate point and mounting surface (4) is 0.45-0.50.
6. a kind of LED street lamp lens according to claim 3, it is characterized in that：It is outer on the direction perpendicular to lane flow
The 1.05- of (3) apart from mounting surface (4) height centered on height of the curve peak (6) of side curved surface apart from mounting surface (4)
1.15 again.
7. a kind of LED street lamp lens according to claim 1, it is characterized in that：The nearly LED in medial surface curved surface (1) bottom
Fluted (8) are arranged in end.
8. a kind of LED street lamp lens according to claim 1, it is characterized in that：The lens are matched along lane flow direction
It is just symmetrical, and semi-gloss intensity is 150 ° -160 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820270092.9U CN207880756U (en) | 2018-02-26 | 2018-02-26 | A kind of LED street lamp lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820270092.9U CN207880756U (en) | 2018-02-26 | 2018-02-26 | A kind of LED street lamp lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207880756U true CN207880756U (en) | 2018-09-18 |
Family
ID=63498738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820270092.9U Expired - Fee Related CN207880756U (en) | 2018-02-26 | 2018-02-26 | A kind of LED street lamp lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207880756U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594644A (en) * | 2019-10-14 | 2019-12-20 | 广东德洛斯照明工业有限公司 | Convex lens type guardrail lighting lamp |
-
2018
- 2018-02-26 CN CN201820270092.9U patent/CN207880756U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594644A (en) * | 2019-10-14 | 2019-12-20 | 广东德洛斯照明工业有限公司 | Convex lens type guardrail lighting lamp |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180918 Termination date: 20210226 |
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| CF01 | Termination of patent right due to non-payment of annual fee |