CN102563478A - Road lighting device - Google Patents
Road lighting device Download PDFInfo
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- CN102563478A CN102563478A CN2011100063666A CN201110006366A CN102563478A CN 102563478 A CN102563478 A CN 102563478A CN 2011100063666 A CN2011100063666 A CN 2011100063666A CN 201110006366 A CN201110006366 A CN 201110006366A CN 102563478 A CN102563478 A CN 102563478A
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- 238000002310 reflectometry Methods 0.000 claims description 2
- 230000000007 visual effect Effects 0.000 description 17
- 230000004907 flux Effects 0.000 description 8
- 230000003287 optical effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005286 illumination Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
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Abstract
The utility model provides a road lighting device, set up in a road top and provide light and shine in the road, the road provides the vehicle and goes on it, and this vehicle has a traffic direction, this road lighting device contains an at least light source module and a cover body, this light source module is used for providing light, this cover body has an emergent face, this emergent face comprises the curved surface of two kind at least different curvatures, the light that above-mentioned light source module provided passes through the different curved surfaces of this cover body, can produce the emergent light of two kind at least angles, make road lighting device produce an asymmetric light type, this asymmetric light type has a weak light side and a highlight side, the grading intensity of weak light side is less than the grading intensity of highlight side, the weak light side is for meeting this driving direction, this vehicle is for getting into the weak light side earlier and reentrant highlight side again.
Description
Technical field
The present invention relates to a kind of road lighting device, relate in particular to a kind of asymmetrical beam type that produces, have antiglare effect, can improve the road lighting device of drive safety.
Background technology
In the lighting field, volume is little, luminous efficiency is high because light emitting diode has, the life-span is long and advantages such as color change is abundant, so the application of light emitting diode more and more widely.But the lumination of light emitting diode element is different from conventional luminescent device; Single light-emitting diode luminous intensity is not enough; Therefore led lamp adopts many identical light emitting diodes of luminous intensity to arrange the luminous intensity that provides enough mostly; And light emitting diode is the directive property light source, must design the needed distribution curve flux of light fixture owing to be applied to lighting field, so light emitting diode reaches user's luminous intensity distribution demand usually through light emitting diode secondary optics element.Yet through installing control optical element mode additional, can reduce the light fixture light extraction efficiency, a number that causes light emitting diode to use will increase, and has both taken electricity and has increased the light fixture cost.
Now in the light emitting diode road Lighting Design case, in response to the road lighting demand, the road lighting of high evenness is designed to the important indicator of street lighting design now; And the light emitting diode road lamp that designs now comparation and assessment road lighting method for quality mostly utilizes the road illumination distribution situation to analyze the road quality of illumination, because unit of illuminance itself is not because of considering road surface material and light contact road surface direct of travel afterwards; Ignore the pavement behavior that visual angle that the driver drives is seen easily on real road, see also shown in Figure 1ly, the light that general street lamp 60 is produced is symmetric form; The scope that this street lamp 60 is shone can be divided into one first visual light district 61 and one second visual light district 62, and for a driving direction F of vehicle 50, vehicle 50 at first gets into this first visual light district 61; Then get into this second visual light district 62 again; This symmetrical beam type is for the driver, and this first visual light district 61 distinguishes by force for visual light, and this second visual light district 62 is the weak district of visual light; Also be; In the direct incident driver of the light eye in this first visual light district 61, can cause driver's dazzle, dazzling discomfort, and when the driver gets into this second visual light district 62; Form the not enough visual impact of road surface brightness value on the contrary, above-mentioned situation all can influence driving safety.
Can know in view of the above; How can develop a kind of direct of travel of considering after road surface material and light contact the road surface; And can take into account the road lighting device of driver in the pavement behavior that the visual angle observed of reality driving, be the problem that the correlative technology field personage is badly in need of solving.
Summary of the invention
Because the disappearance of prior art the objective of the invention is to propose a kind of road lighting device, can produce the asymmetrical beam type, have antiglare effect, can improve drive safety.
For achieving the above object, the present invention proposes a kind of road lighting device, is arranged at road top and provides irradiate light in road, and this road provides vehicle ' on it, and this vehicle has a direction to the car, and this road lighting device comprises:
At least one light source module is in order to provide light;
One cover body; This cover body has an exit facet, and this exit facet is made up of the curved surface of two kinds of different curvatures at least, those different curves of this cover body of light incident that above-mentioned this light source module provides; Can produce the emergent light of at least two kinds of angles; Make this road lighting device produce an asymmetrical beam type, this asymmetrical beam type has a low light level side and a high light side, and the luminous intensity distribution intensity of this low light level side is lower than the luminous intensity distribution intensity of this high light side; This low light level side is for meeting to this direction of traffic, and this vehicle gets into this high light side again for being introduced into this low light level side.
Effect of the present invention is, road lighting device provided by the invention, the distribution curve flux that its light source module sends; Can form the asymmetrical smooth type of a left and right directions, the luminous intensity distribution intensity of driver's direction to the car a little less than, can avoid causing the direct-view dazzle; But not the luminous intensity distribution intensity of direction to the car is stronger; Can keep light in the back scattering direction on contact road surface and the uniformity of intensity, can design the high uniform luminance road surface of being watched at the driver visual angle by this, directly meet user's actual demand; Driver's comfort level can be improved, and drive safety can be improved.
Describe the present invention below in conjunction with accompanying drawing and specific embodiment, but not as to qualification of the present invention.
Description of drawings
Fig. 1 is the illuminating light distribution sketch map of existing street lamp for road;
Fig. 2 is a road lighting device embodiment perspective view of the present invention;
Fig. 3 is the A-A cross-sectional view of Fig. 2;
Fig. 4 is another embodiment perspective view of road lighting device of the present invention;
Fig. 5 is the B-B cross-sectional view of Fig. 4;
Fig. 6 is the another embodiment sectional structure of a road lighting device of the present invention sketch map;
Fig. 7 is that a kind of asymmetric distribution curve flux is implemented illustration;
Fig. 8 is that a kind of asymmetrical beam type is implemented illustration;
Fig. 9 is a light source module example structure sketch map of the present invention;
Figure 10 is applied to the illuminating light distribution sketch map of road for the present invention;
Figure 11 is the brightness value distribution schematic diagram of the present invention for road;
Figure 12 is the brightness value distribution schematic diagram of the present invention for road.
Wherein, Reference numeral
10,20,30-road lighting device
11,21,31-light source module
12,22,32-cover body
121,221,321-exit facet
222, the 322-plane of incidence
121a, 121b, 221a, 221b, 222a, 222b, 321a, 321b-curved surface
13-low light level side
14-high light side
The 40-road
The 50-vehicle
The 60-street lamp
The 61-first visual light district
The 62-second visual light district
The 70-light source module
The 71-pedestal
The 711-loading end
The 72-light emitting diode
The D-spacing
The F-direction of traffic
The H-height
L-length
L1, L2, L3-light
L1a, L1b-reverberation
L2a, L2b, L4, L4a, 14b-refract light
The W-width of roadway
The specific embodiment
Below will describe the present invention and be employed technological means and the effect of achieving the goal with reference to the accompanying drawing of enclosing; And the cited embodiment of following accompanying drawing is merely aid illustration; In order to the understanding to technical scheme of the present invention, but the technological means of this case is not limited to cited accompanying drawing.
See also an example structure of Fig. 2 and road lighting device of the present invention shown in Figure 3; This road lighting device 10 comprises a light source module 11 and a cover body 12, and this light source module 11 is in order to light to be provided, and this cover body 12 has an exit facet 121; In present embodiment; This cover body 12 is for having the thin type housing of an equal equal thickness, and so this cover body 12 also can be unequal thickness, not as limit.This cover body 12 has opaqueness, and this exit facet 121 is to be a concave surface, and concave surface is towards road.This exit facet 121 has reflectivity; This exit facet 121 is that concave curvatures 121a, the 121b by at least two kinds of different curvatures constitutes; This curved surface 121a, 121b can be parabola, sphere or aspheric surface, and this light source module 11 is the intersections that are arranged at those curved surfaces 121a, 121b.This cover body 12 of light L1 incident that this light source module 11 provides; Through the different curve 121a of this exit facet 121, the reflex of 121b; Can produce different reflection angles to light L1; Make reverberation (emergent light) L1a, the L1b of at least two kinds of angles of generation penetrate this cover body 12, so that road lighting device 10 produces the asymmetrical beam type.
Wherein, aspheric curved surface is for meeting following multinomial:
Wherein, z is the curved surface degree of depth on the optical axis, and s is the vertical height of arbitrfary point to the optical axis on the curved surface, and c is the curvature of curved surface, and k is the quadratic surface coefficient, A2, A4 ..., Aj is asphericity coefficient.
See also Fig. 4 and another example structure of road lighting device of the present invention shown in Figure 5; This road lighting device 20 comprises a light source module 21 and a cover body 22, and this light source module 21 is in order to light to be provided, and this cover body 22 has an exit facet 221 and with respect to the plane of incidence 222 of this exit facet 221; In present embodiment; This cover body 22 is for having the thin type housing of an equal equal thickness, and this cover body 22 has light transmission and anaclasis property, and this exit facet 221 is to be a convex surface; Wherein this convex surface is towards road, and this plane of incidence 222 is a concave surface.This exit facet 221 is that curved surface 221a, the 221b by the protrusion of at least two kinds of different curvatures constitutes; And with respect to curved surface 221a, the 221b of this exit facet 221, this plane of incidence 222 is that curved surface 222a, the 222b by the spill of at least two kinds of different curvatures constitutes, and this curved surface 221a, 221b, 222a, 222b can be parabola or sphere; Because the thickness of this cover body 22 is impartial and thin; Therefore, the curvature of this curved surface 221a and 222a is roughly the same, and the curvature of this curved surface 221b and 222b is roughly the same.Wherein this light source module 21 is that the curved surface 222a that is arranged at the plane of incidence 222 (or exit facet 221), 222b (or 221a, 221b) connect respectively on the plane away from the end at the plane of incidence 222 (or exit facet 221) center.The plane of incidence 222 of this cover body 22 of light L2 incident that this light source module 21 provides; Penetrate this cover body 22 by this exit facet 221 again; Refraction action through curved surface 221a, 221b, 222a, 222b; Can produce different refraction angles to light L2, make refract light (emergent light) L2a of at least two kinds of angles of generation, L2b penetrate this cover body 22, so that road lighting device 20 produces the asymmetrical beam type.
See also the another example structure of road lighting device of the present invention shown in Figure 6, this road lighting device 30 comprises a light source module 31 and a cover body 32, and this light source module 31 is in order to light to be provided; This cover body 32 has an exit facet 321 and a plane of incidence 322; Present embodiment and Fig. 5 embodiment are compared each other and can be known, this cover body 32 of present embodiment has a unequal thickness, makes this cover body 32 roughly present the aspect of a solid; This cover body 32 has light transmission and anaclasis property; This exit facet 321 is that curved surface 321a, the 321b by the protrusion of at least two kinds of different curvatures constitutes, and this plane of incidence 322 presents concave arc shape, and this plane of incidence 322 can be a kind of curvature or is made up of at least two kinds of different curvatures; This curved surface 321a, 321b and the curved surface that constitutes this plane of incidence 322 can be parabola, sphere or aspheric surface; The light L3 that this light source module 31 provides can produce refraction for the first time and form refract light L4 during by these plane of incidence 322 these cover bodies 32 of incident, and this refract light L4 penetrates these cover bodies 32 by this exit facet 321 again; Refraction action through curved surface 321a, 321b; Can produce different refraction angles to light L4, make refract light (emergent light) L4a of at least two kinds of angles of generation, L4b penetrate this cover body 32, so that road lighting device 30 produces the asymmetrical beam type.
Wherein, aspheric curved surface is for meeting following multinomial:
Wherein, z is the curved surface degree of depth on the optical axis, and s is the vertical height of arbitrfary point to the optical axis on the curved surface, and c is the curvature of curved surface, and k is the quadratic surface coefficient, A2, A4 ..., Aj is asphericity coefficient.
The road lighting device the 10,20, the 30th that the invention described above provides designs according to required distribution curve flux and light type; A kind of asymmetric distribution curve flux as shown in Figure 7 is implemented illustration; And a kind of asymmetrical beam type shown in Figure 8 is implemented illustration; Design the curved surface 121a of this cover body 12, the curvature of 121b according to Fig. 7 and Fig. 8, the curvature of the curved surface 322 of the curved surface 221a of cover body 22, the curvature of 221b and cover body 32,321a, 321b can reach required asymmetrical beam type.
See also shown in Figure 9; It shows an embodiment of the light source module that the present invention adopted, and this light source module 70 is to be made up of at least one pedestal 71 and a plurality of light emitting diode 72, and this pedestal 71 has a plurality of loading ends 711; Be provided with a light emitting diode 72 in each this loading end 711; These a plurality of loading ends 711 have bent characteristic, can adjust this loading end 711 and have the different elevations angle, and these a plurality of loading ends 711 have at least two kinds of different rotary angles; The light direction that therefore can make those light emitting diodes 72 have at least two kinds of different angles; By this, can comply with this asymmetric distribution curve flux shown in Figure 7 and this asymmetrical beam type shown in Figure 8, design this light source module 70 and have needed asymmetric smooth type.In addition, also can be with above-mentioned this cover body 12,22,32 of these light source module 70 collocation, light source module 70 can carry out the light energy stack with cover body 12,22,32, strengthens required asymmetrical beam intensity.
See also Figure 10 to shown in Figure 12, it is that Fig. 2 and this road lighting device 10 shown in Figure 3 are applied to road 40 and carry out the illuminating light distribution checking, and this road lighting device 10 is to be arranged at this road 40 tops; The exit facet 121 (please refer to Fig. 3) of this road lighting device 10 is towards this road 40 and provides irradiate light in this road 40 that this road 40 provides driver's steering vehicle 50 on it, and this vehicle 50 has a driving direction F; With Figure 10; The direction of traffic F of this vehicle 50 is left sides by the right side, and the width of roadway W of this road 40 is eight meters, and the height H that is provided with of this road lighting device 10 is eight meters; The length L of these road lighting device 10 these roads 40 of protrusion is one meter; The space D of two these road lighting devices 10 is 24 meters, and the luminous flux of this road lighting device 10 is 6500lm, and the power of this road lighting device 10 is 100W; The asymmetrical beam type that this road lighting device 10 is produced has a low light level side 13 and a high light side 14; The luminous intensity distribution intensity of this low light level side 13 is lower than the luminous intensity distribution intensity of this high light side 14, and this low light level side 13 is the direction of traffic F that meet to this vehicle 50, and this vehicle 50 is to be introduced into this low light level side 13 to get into this high light side 14 again.Through the simulated experiment checking, this road lighting device 10 is shown in figure 11 for the brightness value distribution of this road 40, is distributed and can be known by the brightness value value; The brightness value on right side (also i.e. this low light level side 13) is lower, and the brightness value of left side (also i.e. this high light side 14) is higher, and minimal illumination value 9.94 is positioned at right side (also i.e. this low light level side 13); The highest brightness value 23 is positioned at left side (also i.e. this high light side 14), and it is shown in figure 12 to distribute for the brightness value of this road 40 as for this road lighting device 10, is distributed and can be known by the brightness value value; The brightness value on right side (also i.e. this low light level side 13) is lower; And the brightness value of left side (also i.e. this high light side 14) is higher, and minimum brightness value 0.37 is positioned at right side (also i.e. this low light level side 13), and the highest brightness value 1.6 is positioned at left side (also i.e. this high light side 14); Can know that in view of the above the present invention can reach needed asymmetrical beam type really.In like manner, Fig. 5 and this road lighting device 20,30 shown in Figure 6 also can be applicable to road 40, and this road lighting device 20,30 is arranged at road 40 tops, and the exit facet of this road lighting device 20,30 221,321 is got final product towards road 40.
In sum, road lighting device provided by the invention, the distribution curve flux that its light source module sends; Can form the asymmetrical smooth type of a left and right directions, the luminous intensity distribution intensity of driver's direction to the car a little less than, can avoid causing the direct-view dazzle; But not the luminous intensity distribution intensity of direction to the car is stronger; Can keep light in the back scattering direction on contact road surface and the uniformity of intensity, can design the high uniform luminance road surface of being watched at the driver visual angle by this, directly meet user's actual demand; Driver's comfort level can be improved, and drive safety can be improved.
Certainly; The present invention also can have other various embodiments; Under the situation that does not deviate from spirit of the present invention and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (9)
1. road lighting device is arranged at road top and provides irradiate light in this road, and this road provides vehicle ' on it, and this vehicle has a driving direction, it is characterized in that this road lighting device comprises:
At least one light source module is in order to provide light;
One cover body; This cover body has an exit facet, and this exit facet is made up of the curved surface of two kinds of different curvatures at least, and this cover body of light incident that above-mentioned this light source module provides is penetrated by this exit facet again; Can produce the emergent light of at least two kinds of angles; Make this road lighting device produce an asymmetrical beam type, this asymmetrical beam type has a low light level side and a high light side, and the luminous intensity distribution intensity of this low light level side is lower than the luminous intensity distribution intensity of this high light side; This low light level side is for meeting to this direction of traffic, and vehicle gets into this high light side again for being introduced into this low light level side.
2. road lighting device according to claim 1 is characterized in that this cover body has opaqueness, and this exit facet is a concave surface, and this exit facet has reflectivity, can produce different reflection angles to the light that this light source module provides.
3. road lighting device according to claim 2 is characterized in that, this concave surface is towards this road.
4. road lighting device according to claim 1 is characterized in that this cover body has light transmission and anaclasis property; This cover body has light transmission, and this exit facet is a convex surface, and this cover body is provided with a plane of incidence with respect to this exit facet; This plane of incidence is a concave surface; The plane of incidence of this cover body of light incident that this light source module provides penetrates this cover body by this exit facet again, can produce different refraction angles to the light that this light source module provides.
5. road lighting device according to claim 4 is characterized in that, this exit facet is towards this road.
6. road lighting device according to claim 4 is characterized in that, this plane of incidence constitutes for the curved surface by at least a curvature.
7. road lighting device according to claim 6 is characterized in that, the curved surface that constitutes this plane of incidence is parabola, sphere or aspheric surface.
8. road lighting device according to claim 1 is characterized in that, this light source module comprises:
At least one pedestal, it has a plurality of loading ends, and these a plurality of loading ends have at least two kinds of different angles;
A plurality of light emitting diodes are provided with a light emitting diode in above-mentioned each this loading end, and those light emitting diodes have the light direction of at least two kinds of different angles.
9. road lighting device according to claim 1 is characterized in that, the curved surface that constitutes the exit facet of this cover body is parabola, sphere or aspheric surface.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW099145438A TW201226799A (en) | 2010-12-23 | 2010-12-23 | Roadway lighting apparatus |
| TW099145438 | 2010-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102563478A true CN102563478A (en) | 2012-07-11 |
Family
ID=46409649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100063666A Pending CN102563478A (en) | 2010-12-23 | 2011-01-05 | Road lighting device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102563478A (en) |
| TW (1) | TW201226799A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109724020A (en) * | 2017-10-30 | 2019-05-07 | 光宝电子(广州)有限公司 | Outdoor lighting structure and its operating method |
| CN111140781A (en) * | 2018-11-02 | 2020-05-12 | 光宝电子(广州)有限公司 | Light source module and adjusting method thereof |
| CN111442226A (en) * | 2019-01-16 | 2020-07-24 | 光宝电子(广州)有限公司 | Illumination method, illumination device and illumination system |
| CN113551187A (en) * | 2021-07-14 | 2021-10-26 | 宁波市爱使电器有限公司 | LED street lamp |
| WO2022181091A1 (en) * | 2021-02-26 | 2022-09-01 | パナソニックＩｐマネジメント株式会社 | Illumination lens, illuminating device, and illuminating system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI585334B (en) * | 2015-06-17 | 2017-06-01 | 國立中央大學 | Lamp structure of adaptive streetlight |
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| CN101649988A (en) * | 2009-06-30 | 2010-02-17 | 王默文 | Lampshade |
| CN101660705A (en) * | 2008-08-27 | 2010-03-03 | 玉晶光电股份有限公司 | Polarized-light illuminating optical lens |
| CN101761788A (en) * | 2008-12-26 | 2010-06-30 | 亿光电子工业股份有限公司 | Luminous module |
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| CN202469727U (en) * | 2012-01-05 | 2012-10-03 | 佛山市大明照明电器有限公司 | LED (Light-Emitting Diode) garden light |
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| CN101660705A (en) * | 2008-08-27 | 2010-03-03 | 玉晶光电股份有限公司 | Polarized-light illuminating optical lens |
| CN101761788A (en) * | 2008-12-26 | 2010-06-30 | 亿光电子工业股份有限公司 | Luminous module |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109724020A (en) * | 2017-10-30 | 2019-05-07 | 光宝电子(广州)有限公司 | Outdoor lighting structure and its operating method |
| CN111140781A (en) * | 2018-11-02 | 2020-05-12 | 光宝电子(广州)有限公司 | Light source module and adjusting method thereof |
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| CN111442226A (en) * | 2019-01-16 | 2020-07-24 | 光宝电子(广州)有限公司 | Illumination method, illumination device and illumination system |
| WO2022181091A1 (en) * | 2021-02-26 | 2022-09-01 | パナソニックＩｐマネジメント株式会社 | Illumination lens, illuminating device, and illuminating system |
| CN113551187A (en) * | 2021-07-14 | 2021-10-26 | 宁波市爱使电器有限公司 | LED street lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201226799A (en) | 2012-07-01 |
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Application publication date: 20120711 |
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