CN207935997U - A kind of polarisation LED street lamp toroidal lens - Google Patents
A kind of polarisation LED street lamp toroidal lens Download PDFInfo
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- CN207935997U CN207935997U CN201820270204.0U CN201820270204U CN207935997U CN 207935997 U CN207935997 U CN 207935997U CN 201820270204 U CN201820270204 U CN 201820270204U CN 207935997 U CN207935997 U CN 207935997U
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Abstract
The utility model is related to a kind of toroidal lens more particularly to a kind of polarisation LED street lamp toroidal lens.The toroidal lens includes medial surface curved surface and lateral surface curved surface；Symmetrically state, the medial surface curved surface are tilted to lamp stand direction on the direction along lane flow for the medial surface curved surface and lateral surface curved surface, and the lateral surface curved surface is tilted to road direction；On the direction along lane flow, light passes through the refraction of the medial surface curved surface and lateral surface curved surface respectively, realizes the diverging of light and preferable bat aerofoil profile light distribution；On the direction perpendicular to lane flow, light passes through the refraction of the medial surface curved surface and lateral surface curved surface respectively, realizes the cohesion of light.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.
Description
Technical field
The utility model is related to a kind of toroidal lens more particularly to a kind of polarisation LED street lamp toroidal 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 polarisation LED street lamp curved surface reasonable in design is saturating
Mirror.
Technical solution is used by the utility model solves above-mentioned technical problem：
A kind of polarisation LED street lamp toroidal lens, including medial surface curved surface and lateral surface curved surface；The medial surface curved surface and outer
Side curved surface is in symmetry status on the direction along lane flow, and the medial surface curved surface is tilted to lamp stand direction, described
Lateral surface curved surface is tilted to road direction；The curvature of the medial surface curved surface is 0.0165-0.150, the lateral surface curved surface
Curvature is 0.0075-0.112.
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.
Further, the medial surface curved surface is spill free form surface, and the lateral surface curved surface is convex free form surface.This sets
Meter makes the direction along lane flow, realizes light and preferably dissipates；On the direction perpendicular to lane flow, realize
The better cohesion of light.
Further, thickness of the lens close to road side is more than the thickness far from road side.The design makes LED
The light that street lamp is sent out is deviated to road side, improves illumination of the LED street lamp on road.
Further, on the direction along lane flow, the height of the lateral surface curved surface first has from center to both sides
Small reduction, then have small raising, finally it is reduced to mounting surface.The residence height that lens are controlled designed for auxiliary, which compares, to be closed
Suitable range.
Further, on the direction for being biased to lamp stand, it is provided with boss on the lateral surface curved surface, is set on medial surface curved surface
It is equipped with groove.The design avoids the solder joint of LED and connects lead, facilitates the installation of LED.
Further, the lens is 1 away from height ratio：4.0-1：4.6.When away from height ratio within this range, LED street lamp is in road
Road forms good rectangular light spot.
The utility model compared with the existing technology has the following advantages and effect：
1, the light of the utility model is biased to road surface, improves the ratio that light is irradiated to road surface, improves average illumination；
2, 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；
3, 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；
4, 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 55m, 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, spill free form surface；4, convex free form surface；5, center；6, it installs
Face；7、LED；8, boss.
Specific implementation mode
The lens of the utility model cooperate with LED7 (Light-Emitting Diode, light emitting diode), the two
LED street lamp is collectively constituted with lamp stand.Close LED7 one sides are medial surface curved surface 1 on the inside of the lens, and the one side far from LED7 is outer
Side 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.
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.
Embodiment 1：
As shown in Figure 1 to 9, a kind of polarisation LED street lamp toroidal lens, which is glass material, in bulk, including 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 3, after installing LED street lamp, medial surface curved surface 1 is biased to lamp stand
Direction, lateral surface curved surface 2 are biased to the direction of road.As shown in Figure 4 and Figure 6, it on the directions light distribution C0/C180, is sent out by LED7
The Lambertian light distribution gone out passes through the refraction of the medial surface curved surface 1 and lateral surface curved surface 2 of the street lamp toroidal lens, realizes respectively
The diverging of light light and preferable bat aerofoil profile light distribution, improve the uniformity of road lighting.As shown in Figure 5 and Figure 6, in light distribution
On the directions C90/C270, the Lambertian light distribution sent out by LED7 passes through 1 He of medial surface curved surface of the street lamp toroidal lens respectively
The refraction of lateral surface curved surface 2 realizes the cohesion of light light so that LED street lamp light is biased to road surface, improves LED7 light
It is irradiated to the ratio on road surface, improves average illumination.The flux ratio in field data show roadside is 61.6%, the light on room side
Flux ratio is 38.4%；Wherein C0 °/C180 ° of horizontal center line is the line of demarcation in roadside and room side, what the luminous flux in roadside referred to
It is luminous flux of the light that sends out of LED7 in road side, the luminous flux on room side refers to light that LED7 is sent out in the reversed side of road
Luminous flux, the flux ratio in roadside is bigger illustrate light be irradiated to road surface ratio it is higher.
Due to the complexity of curved surface, also determine that the different position of the lens has different curvature, specially medial surface bent
The curvature range of the different location in face 1 is 0.016-0.055, and the curvature range of the different location of lateral surface curved surface 2 is 0.005-
0.165。
In the present invention, single led 7 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 7 and single lens one light emitting die of composition, street lamp can be only comprising there are one shine
Module can also include multiple illuminating modules.
Embodiment 2：
If implemented shown in 1, it is spill free form surface 3 to differ only in medial surface curved surface 1, and lateral surface curved surface 2 is convex
Free form surface 4.
The refractive index of lens is generally between 1.4 to 1.6, and the refractive index of air is 1, according to Snell laws, in general
Light from air enter lens after light emitting angle can become smaller, from lens interior enter air after light emitting angle can become larger.So
In the present embodiment, spill free form surface 3 can be so that the light that sends out of LED7 be after air enters lens, and the change of light emitting angle is a small amount of
It reduces；After convex free form surface 4 can make the light that LED7 is sent out enter air inside the street lamp toroidal lens, light emitting angle
Change increase significantly.Reduced and the changes of light emitting angle increase significantly by the way that the change of light emitting angle is a small amount of, the utility model along
The direction of lane flow realizes light light and preferably dissipates；On the direction perpendicular to lane flow, light light is realized
The better cohesion of line.
Embodiment 3：
As described in Example 2, thickness of the lens close to road side is differed only in be more than far from road side
Thickness.Thickness of the lens close to road side and the thickness ratio far from road side are 1.3-1.5.In the present invention
Thickness is the overall permanence for characterizing lens, is referred specifically in the case of identical base area, the lens are close to road side
Volume with far from road side volume.
Street lamp toroidal lens in embodiment so that the light light that LED7 is sent out is deviated to road side, it may also be said to
It is that the light light that LED7 is sent out is deviated to the direction of lane flow, substantially increases the illumination of street lamp.
Embodiment 4：
As described in Example 3, the height of lateral surface curved surface 2 is differed only in from center 5 to both sides, first there is small drop
It is low, then have small raising, finally it is reduced to mounting surface 6.It refers to being reduced to 5 height of center to reduce in the present invention
98%-99% forms a minimum point at this moment；Raising refers to being increased to the 101%-102% of the minimum point height.
As shown in Fig. 2, the center 5 of the utility model is the central point of facies digitales laterales manus curved surface 2, mounting surface 6 is one smooth
Plane, but not including that in the component of the present embodiment lens；It is flat that the accessory structure lens pressing plate of LED7 lamps is pressed in this
On face, for fixing lens.
Embodiment 5：
On the basis of above example, on the direction for being biased to lamp stand, boss 8, inside are provided on lateral surface curved surface 2
It is arranged on face curved surface 1 fluted；Boss 8 cooperates with groove, as shown in Figure 3.
In addition, be biased to lamp stand direction on, can also be arranged on lateral surface curved surface 2 it is fluted, on medial surface curved surface 1
It is provided with boss 8；It can also be the structure that other can avoid the solder joint of LED7 and connect lead, LED7 is facilitated to install.
Embodiment 6：
As described in Example 5, differ only in the lens is 1 away from height ratio:4.0.LED street lamp is on road at this moment
Form good rectangular light spot.
Away from height than referring in plane equiluminous curve, " street lamp mounting height " and " 10% equiluminous curve is along vehicle
Ratio between length on road wagon flow direction ".
Embodiment 7：
As described in Example 5, differ only in the lens is 1 away from height ratio:4.6.LED street lamp is on road at this moment
Form good rectangular light spot.
Embodiment 8：
As described in Example 5, differ only in the lens is 1 away from height ratio:4.3.
As shown in fig. 7, by the street lamp toroidal lens light distribution characteristic the result of actual measurement shows that：It is in LED7 package dimensions
Under conditions of the high-power integrated packaging of 30*35mm, lens away from height than being 1 to 4.3 when, with splendid rectangular light spot.
The IES texts that the polarisation LED street lamp toroidal lens is surveyed to light distribution import DIALux lighting design softwares, shine road
Obvious results fruit is simulated.Road conditions are：Select the pattern of lighting of Bilateral Symmetry, road width 22.5m, the lamp installation elevation angle
It is 0 °, is 10m in pole height, when, calculate different two lamp clipping rooms 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-55m 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 50m,
Still there is 0.462 uniformity of illuminance.
Shown in Fig. 8, be street lamp post height be 10m, road lighting equiluminous when two street lamp spacing are 55m, unit is
Lux, ratio 1:401, it is 82Lux, minimal illumination 15Lux, average illumination 31Lux that can obtain maximal illumination, is calculated
Minimal illumination/average illumination is 0.467.
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 (6)
1. a kind of polarisation LED street lamp toroidal lens, it is characterised in that：Including medial surface curved surface and lateral surface curved surface；The inside
Face curved surface and lateral surface curved surface are in symmetry status on the direction along lane flow, and the medial surface curved surface is to lamp stand direction
It tilts, the lateral surface curved surface is tilted to road direction；The curvature of the medial surface curved surface is 0.0165-0.150, the outside
The curvature of face curved surface is 0.0075-0.112.
2. a kind of polarisation LED street lamp toroidal lens according to claim 1, it is characterised in that：The medial surface curved surface is
Spill free form surface, the lateral surface curved surface are convex free form surface.
3. a kind of polarisation LED street lamp toroidal lens according to claim 2, it is characterised in that：The lens are close to road one
The thickness of side is more than the thickness far from road side.
4. a kind of polarisation LED street lamp toroidal lens according to claim 3, it is characterised in that：Along lane flow
On direction, the height of the lateral surface curved surface first reduces, then increase from center to both sides, is finally reduced to mounting surface.
5. a kind of polarisation LED street lamp toroidal lens according to Claims 1-4 any claim, it is characterised in that：
It is biased on the direction of lamp stand, boss is provided on the lateral surface curved surface, is arranged on medial surface curved surface fluted.
6. a kind of polarisation LED street lamp toroidal lens according to claim 5, it is characterised in that：The lens are away from high ratio
1：4.0-1：4.6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820270204.0U CN207935997U (en) | 2018-02-26 | 2018-02-26 | A kind of polarisation LED street lamp toroidal lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820270204.0U CN207935997U (en) | 2018-02-26 | 2018-02-26 | A kind of polarisation LED street lamp toroidal lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207935997U true CN207935997U (en) | 2018-10-02 |
Family
ID=63653046
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820270204.0U Active CN207935997U (en) | 2018-02-26 | 2018-02-26 | A kind of polarisation LED street lamp toroidal lens |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186012A (en) * | 2019-04-30 | 2019-08-30 | 上海智光慧芯照明科技有限公司 | A kind of LED module lens |
| CN113464881A (en) * | 2021-06-22 | 2021-10-01 | 深圳市睿光达光电有限公司 | Street lamp with polarisation anti-dazzle lens |
| CN113606506A (en) * | 2021-07-02 | 2021-11-05 | 深圳市海洋王照明工程有限公司 | Polarized lens LED lamp |
-
2018
- 2018-02-26 CN CN201820270204.0U patent/CN207935997U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186012A (en) * | 2019-04-30 | 2019-08-30 | 上海智光慧芯照明科技有限公司 | A kind of LED module lens |
| CN113464881A (en) * | 2021-06-22 | 2021-10-01 | 深圳市睿光达光电有限公司 | Street lamp with polarisation anti-dazzle lens |
| CN113606506A (en) * | 2021-07-02 | 2021-11-05 | 深圳市海洋王照明工程有限公司 | Polarized lens LED lamp |
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