CN101078477A - Energy-saving road lighting member with microstructure optical system scattering element - Google Patents
Energy-saving road lighting member with microstructure optical system scattering element Download PDFInfo
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- CN101078477A CN101078477A CNA2007100575174A CN200710057517A CN101078477A CN 101078477 A CN101078477 A CN 101078477A CN A2007100575174 A CNA2007100575174 A CN A2007100575174A CN 200710057517 A CN200710057517 A CN 200710057517A CN 101078477 A CN101078477 A CN 101078477A
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- dispersing element
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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
Abstract
The invention relates to a lighting element of energy-saving street with fresnel microstructure characteristic. The lighting element in invention comprises lamp box, control circuit and radiator, lighting source of light-emitting diode array, radiating element and reflector. The radiating element has fresnel microstructure characteristic, namely microstructure of radiating element is hackle and the size has equivalent magnitude with the tooth structure of fresenl-lens. The structure adopted by the invention can be used to modulate light emitted by light-emitting diode array so that light can be radiated in wider range at the needed direction; namely at the running direction light is radiated in wider range; and the beam lighting range on the vertical direction to street can be controlled accordingly so that obtained light distribution can be satisfied with the demand of street lighting completely.
Description
Technical field
The present invention relates to the energy-saving road lighting device, particularly have the illuminating device of microstructure optical system.
Background technology
Light emitting diode has been widely used in traffic lights at present as a kind of solid-state light emitting element, signal lamp, and panchromatic giant-screen is indoor, the outdoor advertising board, DVD optical storage lamp field.Compare with the traditional lighting light source, lumination of light emitting diode efficient height, power consumption is few, long service life, safety and environmental protection.If replace whole incandescent lamps and partly replace incandescent lamp with light emitting diode, can save 1/3 electric consumption on lighting.At the energy-saving road lighting that adopts light emitting diode, must carry out reasonably outer optical system design.The outer optical design of LED device mainly is to make light energy redistribution according to different practical applications, thereby reaches more effective, more reasonably use the purpose of limited light energy.
At present, adopt light emitting diode to make the energy-saving road lighting light fixture that lighting source is made, its optical system is utilized principle of reflection, adopting reflector or reflective mirror to make luminous energy distribute meets the demands, or some employing ridge shape structure, these method complex structures are difficult to put into production use.
Summary of the invention
The objective of the invention is to solve the energy-saving road lighting fitting structure complexity that existing light emitting diode is made, the problem that is difficult to put into production use provides a kind of energy-saving road lighting device with Fresnel microstructure characteristic.
Another object of the present invention is to carry out secondary optics design, adopts reasonably outer optical system, improves the optical property of light fixture, and when making the Illumination Distribution of light fixture meet the demands, the assurance illuminating device is simple in structure, easy accessibility.
In order to finish purpose of the present invention, it is dispersing element that the present invention at first provides a primary element of realizing illuminating device.The used dispersing element of each street lamp comprises two or four little dispersing elements that shape is identical.The material of dispersing element is lucite or plastics.Little vertical bar type zigzag groove structure is arranged on each dispersing element, and its size is suitable with the order of magnitude of general Fresnel Lenses tooth-shape structure size.After two dispersing element teeth were bonded into a thick dispersing element to tooth, again that the side of such two thick dispersing elements is bonding, the big dispersing element of a V-shape structure of formation, two the thick dispersing element angles in its both sides were 150 degree.Perhaps only form a big dispersing element by two little dispersing elements in that side is bonding, angle also is 150 degree between two little dispersing elements.Form the dispersing element of V-shape, its zigzag structure tooth facet on one side is perpendicular to the bottom surface of dispersing element, and the facet of another side is that the angle of inclined plane and bottom surface is 45 degree, and promptly the angle on zigzag structure tooth both sides also is 45 degree.When the dispersing element with Fresnel microstructure characteristic only is bonded by two dispersing element sides, when half of two the little dispersing elements in the left side of V-shape dispersing element are bonding, make the oblique left side, inclination angle on inclined plane, when the right half of little dispersing element of V-shape dispersing element is bonding, make the oblique the right, inclination angle on inclined plane, and should make that the direction of micro-groove is parallel with the seam direction of element on the element.When the dispersing element with Fresnel microstructure characteristic was bonded by 4 dispersing elements, little dispersing element tooth docked when bonding tooth, and two little dispersing element zigzag structures are on the same plane perpendicular to the facet of bottom surface.And near in two little dispersing elements of light source, the oblique left side, inclination angle, inclined plane of the half of little dispersing element in a left side, oblique the right, inclination angle, inclined plane of right half of little dispersing element and should make that the direction of micro-groove is parallel with the seam direction of element on the element.
The present invention provides another key element of realizing illuminating device simultaneously, and the light emitting diode matrix lamp light source promptly provides a kind of arrangement mode of light emitting diode.On two different planes light emitting diode is arranged in two rectangular arrays, the center distance of every adjacent two chips equates that these two interplanar angles also are 150 degree.Coating white coating strengthens reflection of light on the luminous diode illuminating light source array plane, and the utilization ratio of light source to luminous energy is provided.
Secondly, the invention provides the placement relation of a kind of light emitting diode and dispersing element.The dispersing element of V-shape is placed on the dead ahead of luminous diode illuminating light source, and so, luminous diode illuminating light source array plane and dispersing element are parallel to each other.Luminous diode illuminating light source and dispersing element with Fresnel microstructure characteristic, the distance of Fang Zhiing is 20 millimeters between the two, promptly the beeline between the intersection of two luminous diode illuminating light source array plane and two the dispersing element intersections is 20 millimeters.The area size of single its plate of dispersing element is more bigger than single light emitting diode rectangular array area, guarantee to cover single light emitting diode rectangular array.
In addition, be provided with a speculum in the space of the present invention between luminous diode illuminating light source and dispersing element, so that utilize the veiling glare that is reflected to other directions better, the present invention also is coated with the whitewash layer that is used to strengthen to reflection of light on the array plane of luminous diode illuminating light source, thereby improves the efficiency of light energy utilization of light fixture.
Advantage of the present invention and good effect:
The present invention considers the characteristics of light emitting diode light beam high directivity, adopt structure of the present invention that the light that light emitting diode matrix penetrates is modulated, make light on the direction of needs, be dispersed in the wideer scope, promptly on the direction that vehicle travels on road, be dispersed in the wideer scope, thereby correspondingly controlled perpendicular to the light beam irradiates scope on the road direction.
Adopt Lighttools software that this structure is carried out analogue simulation, the result shows that this uses is invented can make and make moderate progress along the uniformity of illuminance on the vehicle heading road.
The result who experimentizes shows that also this invention can improve uniformity of illuminance, i.e. luminous intensity distribution performance.Especially the uniformity of illuminance of road edge.Adopt one 2 * 3 little rectangular array of light emitting diode to carry out confirmatory experiment again, use two little dispersing elements to dock one of bonding thick dispersing element.The result shows that the thick dispersing element of monolithic can be so that the center brightness value of hot spot, be offset 60 centimetres, the illuminance uniformity at edge is therefore also better, therefore when the element that uses four little dispersing elements to be bonded into, can make illuminance uniformity improvement on the whole road surface.
Description of drawings
Fig. 1 is the luminous diode illuminating light source front view;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 a is single little dispersing element schematic diagram; Fig. 3 b is a partial enlarged drawing;
Fig. 4 a is the thick dispersing element schematic diagrames of two little dispersing elements after bonding; Fig. 4 b is its partial enlarged drawing, and after two little dispersing elements were bonding, crown was to crown;
The big dispersing element schematic diagram of Fig. 5 for only being bonded into by two little dispersing elements;
Fig. 6 is the big dispersing element schematic diagram that two thick dispersing elements are bonded into, and whole dispersing element is about center line 3 symmetries;
Fig. 7 is energy-saving road lighting device architecture figure; Dispersing element is placed on the place ahead of light fixture, and dispersing element also can be as the lampshade of illuminating device; Numeral among the figure.
Fig. 8 is for carrying out the result schematic diagram of analogue simulation with Lighttools software; (a) for not adopting this invention, adopt the road illumination figure of planar rectangular matrix lamp light source; During (b) for this invention of employing, resulting road illumination figure.The illuminating device ground height of this analog result setting is 12m, and the x axle is along vehicle heading, and the y axle is perpendicular to this direction.
Among the figure:
1 is light emitting diode, and 2 is control circuit and fin, and 3 for symmetrical center line, also be bonding suture, 4 is speculum.
The specific embodiment
As shown in Figure 7, energy-saving road lighting device provided by the invention is made of lamp box, control circuit and fin, light emitting diode matrix lamp light source, dispersing element and speculum.After the light beam that light emitting diode matrix sends was scattered the element scattering, the light distribution that obtains was satisfied road lighting and is required (referring to Fig. 8 b).Its crown angle of little dispersing element is 45 degree (referring to Fig. 3).Two bonding backs of little dispersing element form a thick dispersing element (referring to Fig. 4).Angle after two thick dispersing elements are bonding is 150 degree (referring to Fig. 6).Perhaps a big dispersing element only is bonded (referring to Fig. 5) by two little dispersing element sides.Big dispersing element can be used as the lampshade of light fixture.Light emitting diode is arranged in two rectangular arrays on two Different Plane, and these two interplanar angles also are 150 degree.Speculum places the both sides between dispersing element and the light emitting diode matrix.
Claims (10)
1, a kind of energy-saving road lighting device with dispersing element of microstructure optical system, comprise: lamp box, control circuit and fin, light emitting diode matrix lamp light source, dispersing element with microstructure optical system, it is characterized in that described dispersing element with microstructure optical system is meant the dispersing element with Fresnel microstructure characteristic, i.e. indention structure on the microstructure of dispersing element.
2, energy-saving road lighting device according to claim 1, the zigzag structure that it is characterized in that dispersing element is the vertical bar type, and its size is suitable with the order of magnitude of general Fresnel Lenses dental structure size, and tooth spacing size is 5 millimeters.
3, energy-saving road lighting device according to claim 2, it is characterized in that the bottom surface of the plane on one side of tooth in the zigzag structure of dispersing element perpendicular to dispersing element, the facet of another side is that the angle of inclined plane and bottom surface is 45 degree, and promptly the angle on zigzag structure tooth both sides also is 45 degree.
4, energy-saving road lighting device according to claim 1 is characterized in that dispersing element is bonding by two with zigzag structure surface little dispersing element sides; Or constitute thick dispersing element by two little dispersing elements so that the flank of tooth is bonding relatively, side is bonding again for 2 thick dispersing elements, form angle and be 150 degree, macroscopical profile is the big dispersing element of V-shape.
5, energy-saving road lighting device according to claim 4, it is characterized in that when the dispersing element with Fresnel microstructure characteristic only is bonded by two dispersing element sides, the slot direction of sawtooth is consistent on bonding seam after two little dispersing elements are bonding and the two elements, and the left half of little dispersing element of V-shape dispersing element is when bonding, make the oblique left side, inclination angle on inclined plane, the right half of little dispersing element of V-shape dispersing element makes the oblique the right, inclination angle on inclined plane when bonding.When the dispersing element with Fresnel microstructure characteristic is bonded by 4 dispersing elements, little dispersing element tooth docks when bonding tooth, two little dispersing element zigzag structures are on the same plane perpendicular to the facet of bottom surface, and near in two little dispersing elements of light source, the oblique left side, inclination angle, inclined plane of the half of little dispersing element in a left side, oblique the right, inclination angle, inclined plane of right half of little dispersing element, and should make that the direction of the slot of sawtooth is parallel with the seam direction of element on the element.
6, energy-saving road lighting device according to claim 1, the center distance that it is characterized in that every adjacent two chips in the described light emitting diode matrix lamp light source equates, and on two planes, be arranged in two rectangular arrays, promptly the frame for movement from the macroscopic view light emitting diode matrix is V-shape, and angle is 150 degree between two rectangular array.
7, energy-saving road lighting device according to claim 1 is characterized in that the modes of emplacement of dispersing element is the close light emitting diode matrix lamp light source in the plane of its no zigzag structure; Be placed on the dead ahead of luminous diode illuminating light source, so, luminous diode illuminating light source array plane and dispersing element are parallel to each other.
8, energy-saving road lighting device according to claim 7, it is characterized in that described luminous diode illuminating light source and dispersing element distance between the two is 20 millimeters, promptly the beeline between the intersection of two luminous diode illuminating light source array plane and two the dispersing element intersections is 20 millimeters; Dispersing element area size is more bigger than single light emitting diode rectangular array area, guarantees to cover single light emitting diode rectangular array.
9, energy-saving road lighting device according to claim 1 is characterized in that the both sides between luminous diode illuminating light source and the dispersing element are provided with speculum; Be coated with the whitewash layer that is used to strengthen to reflection of light on the array plane of luminous diode illuminating light source.
10, energy-saving road lighting device according to claim 1, the material that it is characterized in that dispersing element is a lucite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100575174A CN101078477A (en) | 2007-06-01 | 2007-06-01 | Energy-saving road lighting member with microstructure optical system scattering element |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100575174A CN101078477A (en) | 2007-06-01 | 2007-06-01 | Energy-saving road lighting member with microstructure optical system scattering element |
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| CN101078477A true CN101078477A (en) | 2007-11-28 |
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| CNA2007100575174A Pending CN101078477A (en) | 2007-06-01 | 2007-06-01 | Energy-saving road lighting member with microstructure optical system scattering element |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881387A (en) * | 2010-06-10 | 2010-11-10 | 鸿富锦精密工业（深圳）有限公司 | LED fluorescent lamp |
| CN101684917B (en) * | 2009-05-22 | 2011-04-20 | 西安智海电力科技有限公司 | Non-imaging optical directional light distribution method for LED lighting source |
| US8350450B2 (en) | 2009-09-30 | 2013-01-08 | Foxsemicon Integrated Technology, Inc. | LED lamp |
| WO2017177581A1 (en) * | 2016-04-15 | 2017-10-19 | 陈琦 | Illuminating table lamp with two lamp plates |
-
2007
- 2007-06-01 CN CNA2007100575174A patent/CN101078477A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101684917B (en) * | 2009-05-22 | 2011-04-20 | 西安智海电力科技有限公司 | Non-imaging optical directional light distribution method for LED lighting source |
| US8350450B2 (en) | 2009-09-30 | 2013-01-08 | Foxsemicon Integrated Technology, Inc. | LED lamp |
| CN102032474B (en) * | 2009-09-30 | 2013-04-24 | 富士迈半导体精密工业（上海）有限公司 | Light-emitting diode lamp |
| CN101881387A (en) * | 2010-06-10 | 2010-11-10 | 鸿富锦精密工业（深圳）有限公司 | LED fluorescent lamp |
| WO2017177581A1 (en) * | 2016-04-15 | 2017-10-19 | 陈琦 | Illuminating table lamp with two lamp plates |
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Open date: 20071128 |