CN102032464A - Light-emitting diode illuminating unit and street lamp comprising same - Google Patents
Light-emitting diode illuminating unit and street lamp comprising same Download PDFInfo
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- CN102032464A CN102032464A CN2009101780387A CN200910178038A CN102032464A CN 102032464 A CN102032464 A CN 102032464A CN 2009101780387 A CN2009101780387 A CN 2009101780387A CN 200910178038 A CN200910178038 A CN 200910178038A CN 102032464 A CN102032464 A CN 102032464A
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Abstract
The invention mainly provides a light-emitting diode illuminating unit and a street lamp comprising the same. The light-emitting diode illuminating unit comprises a light-emitting diode element and a lens element, wherein the light-emitting diode element is used for generating light, and the lens element covers the light-emitting diode element, is used for adjusting the light divergence direction and comprises a substrate, a light penetration part and an accommodation groove; the light penetration part protrudes from the substrate, and the outer surface of the light penetration part is an asymmetric single curved surface; the accommodation groove is arranged in the substrate and the light penetration part and is used for accommodating the light-emitting diode element; the light-emitting diode element deviates from the central axis of the light penetration part; and one side of the curved surface, which is close to the light-emitting diode element, is provided with a relatively small curvature radius, thus the light is diverged farther. The light-emitting diode illuminating unit provided in the invention can improve the defects of the prior art and enhance the illuminating effect, thereby having industrial value.
Description
Technical field
The present invention relates to a kind of lighting unit, relate in particular to a kind of led lighting unit.
Background technology
In recent years because light emitting diode (Light Emitting Diode, LED) breakthrough of manufacturing technology, make the luminosity and the luminous efficiency of light emitting diode significantly promote, and it is low that light emitting diode has power consumption, caloric value is hanged down advantages such as reaching long service life, the trend that meets environmental protection and energy saving, thereby make light emitting diode replace traditional incandescent lamp bulb gradually and become new illumination component, and be widely used in road illumination device, the home lighting device, lighting apparatus for vehicle, hand-held lighting device, liquid crystal panel backlight, the traffic sign indicator lamp, the indication billboard, or the auxiliary lighting apparatus of other electronic products etc.
In road lighting is used, the effect of street lamp is mainly providing night illumination, and traditional street lamp has caused the huge waste of the energy because whole light efficiency is low, therefore, traditional type street lamp originally being replaced with light emitting diode road lamp has been one of emphases method of present various countries execution carbon reduction.And because the illuminating effect of street lamp can influence the sight line at night with the road person; therefore; in order to protect with using road safety road person's night; national governments also carry out standard to the illumination of light emitting diode road lamp, require the enough and light projection scope of in segment distance illumination to want to contain the rectangular area of the specific length-width ratio of tool.
Yet, because light emitting diode sends light by the focal point in front, the circular distribution of its light, the angle of divergence are little, so the light beam that its light produced projection scope is less, be unfavorable for large-area range of exposures, make light that light emitting diode road lamp sent be concentrated in the scope of contiguous street lamp, cause the street lamp can only be according to closely not according to far, can't provide road enough and illumination uniformly, thereby influence safety with passerby.
Therefore, how to enlarge the light beam irradiates scope that light emitting diode road lamp sends, make light emitting diode road lamp that uniform illumination is provided, and meet street lamp illumination standard, for those skilled in the art makes great efforts to research and develop improved direction always.
Summary of the invention
Main purpose of the present invention is to provide a kind of led lighting unit, reach the light emitting diode road lamp that is constituted by this led lighting unit, it can compensate the light illumination of lamp stand far-end, effectively improve the brightness and the uniformity of the illumination of street lamp road pavement, and then promote safety with passerby.
For reaching above-mentioned purpose, of the present invention one than the broad sense embodiment for a kind of led lighting unit is provided, comprise a light-emitting diode, in order to produce a light, and a lens element, be covered on this light-emitting diode, in order to adjust the direction of dispersing of this light.This lens element comprises a substrate, a transmittance section and a storage tank, and this transmittance section protrudes in this substrate and its outer surface is an asymmetric single curved surface, and this storage tank is arranged among this substrate and this transmittance section, in order to ccontaining this light-emitting diode.This light-emitting diode departs from the axis of this transmittance section and is provided with, and this curved surface is in having less relatively radius of curvature near a side of this light-emitting diode, so that this divergence of beam is at a distance.
Of the present invention another than the broad sense embodiment for a kind of light emitting diode road lamp is provided, comprise a lamp stand, a lamp socket and at least one led lighting unit that is arranged on this lamp socket.This led lighting unit comprises a light-emitting diode, in order to producing a light, and a lens element, be covered on this light-emitting diode, in order to adjust the direction of dispersing of this light.This lens element comprises a substrate, a transmittance section and a storage tank, and this transmittance section protrudes in this substrate and its outer surface is an asymmetric single curved surface, and this storage tank is arranged among this substrate and this transmittance section, in order to ccontaining this light-emitting diode.This light-emitting diode departs from the axis of this transmittance section and is provided with, and this curved surface is in having less relatively radius of curvature near a side of this light-emitting diode, so that this divergence of beam is to the lamp stand far-end.
The light emitting diode road lamp that the present invention mainly provides a kind of led lighting unit and is made of this led lighting unit, wherein the light-emitting diode of this led lighting unit becomes the off-axis setting, the single asymmetric curved surface of lens element tool, and this curved surface has less relatively radius of curvature in the side near this light-emitting diode, make light that the self-luminous diode element sends through the effect of lens element to lamp stand far-end road surface deviation, light illumination with compensation lamp stand far-end, effectively improve the brightness and the uniformity of the illumination of street lamp road pavement, and then promote safety with passerby.So led lighting of the present invention unit can improve the defective of known technology and promote illuminating effect, so have the value of industry.
Description of drawings
Fig. 1: it is the schematic diagram of the light emitting diode road lamp of preferred embodiment of the present invention.
Fig. 2: it is for the schematic perspective view of led lighting of the present invention unit.
Fig. 3: it is the A-A profile of Fig. 2.
Fig. 4: it is the B-B profile of Fig. 2.
Fig. 5: it is the modularized design schematic diagram of lens element.
Description of reference numerals in the above-mentioned accompanying drawing is as follows:
10: lamp stand 20: lamp socket
30: led lighting unit 31: light-emitting diode
311: light emitting diode 312: lens
32: lens element 321: substrate
322: transmittance section 3220: curved surface
323: storage tank 3230: end face
M: the axis T of transmittance section: the salient point of curved surface
The specific embodiment
Some exemplary embodiments that embody feature of the present invention and advantage will be described in detail in the explanation of back segment.Be understood that the present invention can have various variations on different modes, it does not depart from the scope of the present invention, and explanation wherein and the accompanying drawing usefulness that ought explain in itself, but not in order to restriction the present invention.
The invention provides a kind of led lighting unit, it is mainly used in road lighting, street lamp for example, but not as limit.See also Fig. 1, it is the schematic diagram of the light emitting diode road lamp of preferred embodiment of the present invention.As shown in the figure, light emitting diode road lamp of the present invention comprises a lamp stand 10, a lamp socket 20 and a led lighting unit 30, and wherein, the road both sides is fixed in the lower end of this lamp stand 10, the upper end then extends to a predetermined altitude, and can be towards road surface central authorities bending one predetermined angular.This lamp socket 20 is arranged at the upper end of this lamp stand 10, this led lighting unit 30 then is arranged on this lamp socket 20, and comprise a light-emitting diode 31 and a lens element 32, this light-emitting diode 31 is in order to produce a light, this lens element 32 is covered on this light-emitting diode 31, in order to adjust the direction of dispersing of this light.
In Fig. 1, be that example is done explanation so that a led lighting unit 30 to be set on this lamp socket 20, yet the number of set led lighting unit 30 is not limited to one on this lamp socket 20, and be preferably a plurality of led lightings unit 30 that comprises with array format, so as to improving the illumination of street lamp.
See also Fig. 2 to Fig. 4, wherein Fig. 2 is the schematic perspective view of led lighting of the present invention unit, and Fig. 3 is the A-A profile of Fig. 2, and Fig. 4 then is the B-B profile of Fig. 2.As shown in the figure, this light-emitting diode 31 mainly comprises a light emitting diode 311 and lens 312, because the structure of this light-emitting diode 31 and the circuit design that matches do not limit, can adjust according to different demands, and these designs can utilize known technology and reach, so repeat no more in this.
This lens element 32 mainly comprises a substrate 321, one transmittance section 322 and a storage tank 323, this substrate 321 roughly becomes rectangle, and can be fixed on this lamp socket 20, this transmittance section 322 protrudes in this substrate 321 and its outer surface is an asymmetric single curved surface 3220, wherein the design curvature of this curved surface 3220 can be the curvature of elliptic curve or other irregular curves, asymmetric design by this curved surface 3220, make this transmittance section 322 be a unsymmetric structure, and this storage tank 323 is arranged among this substrate 321 and this transmittance section 322, in order to ccontaining this light-emitting diode 31.
According to preferred embodiment of the present invention, this light-emitting diode 31 departs from the axis M of this transmittance section 322 and is provided with, and this curved surface 3220 has less relatively radius of curvature in the side near this light-emitting diode 31.As shown in Figure 3, this light-emitting diode 31 departs from the axis M of this transmittance section 322 and is arranged on the right side of this axis M, similarly, this curved surface 3220 is also to having less relatively radius of curvature in light-emitting diode 31 set right sides, and can be as seen from the figure, the salient point T of this curved surface 3220 is that correspondence is formed at the right side, and in other words, the protuberance of this transmittance section 322 is formed at the same side that should light-emitting diode 31 set positions.
In one embodiment, the section of this transmittance section 322 roughly becomes rectangle, and this curved surface 3220 has aforesaid curvature variation, the also one-tenth off-axis setting on the long axis direction of this rectangle of this light-emitting diode 31 on the long axis direction of this rectangle.By this rectangular design, can make led lighting of the present invention unit meet the street lamp illumination standard that light projection scope will be able to contain the rectangular area of the specific length-width ratio of tool.
On the other hand, this storage tank 323 is an also inclined to one side side setting in this substrate 321 and this transmittance section 322, makes this light-emitting diode 31 that is placed in this storage tank 323 can depart from the axis M of this transmittance section 32 and is provided with.In addition, as shown in Figure 4, the arc surface of the end face of this storage tank 323 3230 for projecting upwards except that assisting to adjust the dispersing the direction of light, also can reduce the thickness of lens element 32 whereby, and the volume of lens element 32 is reduced.For example, substrate 321 length of lens element 32 are about 20mm, and the height of whole lens element 32 is about 7.5mm, and certainly aforementioned dimensions can be adjusted and not limited on demand.
In one embodiment, the section of this storage tank 323 roughly becomes rectangle, and its long axis direction is consistent with the long axis direction of transmittance section 322, but not as limit.
Please consult Fig. 1 again, because the asymmetrical structure of led lighting of the present invention unit 30 tools, wherein this light-emitting diode 31 depart from this lens element 32 transmittance section 322 axis M and be provided with, and the curved surface 3220 of transmittance section 322 has less relatively radius of curvature in the side near this light-emitting diode 31, make light that self-luminous diode element 31 sends after birefringence penetrates this transmittance section 322, can be dissipated into the road surface (shown in the optical track of Fig. 1) of lamp stand 10 far-ends, not only can impel the lifting of effective area (road surface of required irradiation) light energy, more can compensate the light illumination of lamp stand 10 far-ends, promote uniformity of illuminance whereby, with avoid road central authorities because of can't obtain away from lamp stand 10 abundance illumination was caused uses the road safety problem.Therefore, the unsymmetric structure design by led lighting of the present invention unit 30 can effectively improve the brightness and the uniformity of the illumination of street lamp road pavement, and then promotes the safety with passerby.
In one embodiment, this lens element 32 is formed in one, and made by high light transmissive material, such as but not limited to plastic material.
See also Fig. 5, it is the modularized design schematic diagram of lens element.Because lens element 32 of the present invention has the plane formula design of plano-convex profile, therefore can directly a plurality of lens elements 32 be carried out die sinking and manufacturing in the mode of arrayed, wherein the substrate 321 of each lens element 32 links to each other, 322 of transmittance sections protrude in respectively on this substrate 321, thus, not only technology can be quickened, more manufacturing cost can be reduced.Certainly, carrying out the number of the lens element that modularization makes and arrangement mode can be on demand and conversion, be not limited to embodiment illustrated in fig. 5ly, more the pattern that can directly be with the installation of on the lamp socket designs, and makes to produce the lens element group and directly be installed on the lamp socket with light-emitting diode.
In sum, the light emitting diode road lamp that the present invention mainly provides a kind of led lighting unit and is made of this led lighting unit, wherein the light-emitting diode of this led lighting unit becomes the off-axis setting, the single asymmetric curved surface of lens element tool, and this curved surface has less relatively radius of curvature in the side near this light-emitting diode, make light that the self-luminous diode element sends through the effect of lens element to lamp stand far-end road surface deviation, light illumination with compensation lamp stand far-end, effectively improve the brightness and the uniformity of the illumination of street lamp road pavement, and then promote safety with passerby.So led lighting of the present invention unit can improve the defective of known technology and promote illuminating effect, so have the value of industry.
The present invention must be appointed by those of ordinary skill in the art and executes that the craftsman thinks and be to modify as all, does not so take off the scope as the desire protection of attached claim institute.
Claims (20)
1. led lighting unit comprises:
One light-emitting diode is in order to produce a light; And
One lens element is covered on this light-emitting diode, and in order to adjust the direction of dispersing of this light, this lens element comprises:
One substrate;
One transmittance section, protruding in this substrate and its outer surface is an asymmetric single curved surface; And
One storage tank is arranged among this substrate and this transmittance section, in order to ccontaining this light-emitting diode;
Wherein, this light-emitting diode departs from the axis of this transmittance section and is provided with, and this curved surface is in having less relatively radius of curvature near a side of this light-emitting diode, so that this divergence of beam is at a distance.
2. led lighting as claimed in claim 1 unit, wherein this light-emitting diode comprises a light emitting diode and lens.
3. led lighting as claimed in claim 1 unit, wherein this substrate roughly becomes rectangle.
4. led lighting as claimed in claim 1 unit, wherein the design curvature of this curved surface is the curvature of elliptic curve or other irregular curves.
5. led lighting as claimed in claim 1 unit, wherein the salient point of this curved surface is formed at the side near this light-emitting diode.
6. led lighting as claimed in claim 1 unit, wherein the section of this transmittance section roughly becomes rectangle, and this curved surface has the curvature variation on the long axis direction of this rectangle.
7. led lighting as claimed in claim 6 unit, wherein this light-emitting diode becomes the off-axis setting on the long axis direction of this transmittance section.
8. led lighting as claimed in claim 1 unit, wherein this storage tank inclined to one side side setting in this substrate and this transmittance section.
9. led lighting as claimed in claim 1 unit, wherein the end face of this storage tank is the arc surface that projects upwards.
10. a light emitting diode road lamp comprises a lamp stand, a lamp socket and at least one led lighting unit that is arranged on this lamp socket, and this led lighting unit comprises:
One light-emitting diode is in order to produce a light; And
One lens element is covered on this light-emitting diode, and in order to adjust the direction of dispersing of this light, this lens element comprises:
One substrate;
One transmittance section, protruding in this substrate and its outer surface is an asymmetric single curved surface; And
One storage tank is arranged among this substrate and this transmittance section, in order to ccontaining this light-emitting diode;
Wherein, this light-emitting diode departs from the axis of this transmittance section and is provided with, and this curved surface is in having less relatively radius of curvature near a side of this light-emitting diode, so that this divergence of beam is to the lamp stand far-end.
11. light emitting diode road lamp as claimed in claim 10, wherein this lamp socket is arranged at the upper end of this lamp stand.
12. light emitting diode road lamp as claimed in claim 11, wherein the upper end of this lamp stand is towards road surface central authorities bending one predetermined angular.
13. light emitting diode road lamp as claimed in claim 10, wherein this light-emitting diode comprises a light emitting diode and lens.
14. light emitting diode road lamp as claimed in claim 10, wherein this substrate roughly becomes rectangle.
15. light emitting diode road lamp as claimed in claim 10, wherein the design curvature of this curved surface is the curvature of elliptic curve or other irregular curves.
16. light emitting diode road lamp as claimed in claim 10, wherein the salient point of this curved surface is formed at the side near this light-emitting diode.
17. light emitting diode road lamp as claimed in claim 10, wherein the section of this transmittance section roughly becomes rectangle, and this curved surface has the curvature variation on the long axis direction of this rectangle.
18. light emitting diode road lamp as claimed in claim 17, wherein this light-emitting diode becomes the off-axis setting on the long axis direction of this transmittance section.
19. light emitting diode road lamp as claimed in claim 10, wherein this storage tank inclined to one side side setting in this substrate and this transmittance section.
20. light emitting diode road lamp as claimed in claim 10, wherein the end face of this storage tank is the arc surface that projects upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101780387A CN102032464A (en) | 2009-09-25 | 2009-09-25 | Light-emitting diode illuminating unit and street lamp comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101780387A CN102032464A (en) | 2009-09-25 | 2009-09-25 | Light-emitting diode illuminating unit and street lamp comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102032464A true CN102032464A (en) | 2011-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101780387A Pending CN102032464A (en) | 2009-09-25 | 2009-09-25 | Light-emitting diode illuminating unit and street lamp comprising same |
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| Country | Link |
|---|---|
| CN (1) | CN102032464A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014229477A (en) * | 2013-05-22 | 2014-12-08 | 北明電気工業株式会社 | Luminaire for road |
| CN104976552A (en) * | 2015-06-29 | 2015-10-14 | 赛尔富电子有限公司 | Lens device and LED light fixture |
| CN106200117A (en) * | 2016-06-29 | 2016-12-07 | 广州创维平面显示科技有限公司 | Down straight aphototropism mode set and display |
| CN109185775A (en) * | 2018-09-10 | 2019-01-11 | 深圳市昂特尔太阳能投资有限公司 | Laser lamp post structure |
| CN111123415A (en) * | 2018-10-30 | 2020-05-08 | 帝宝工业股份有限公司 | Optical system, optical lens and construction method thereof |
-
2009
- 2009-09-25 CN CN2009101780387A patent/CN102032464A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014229477A (en) * | 2013-05-22 | 2014-12-08 | 北明電気工業株式会社 | Luminaire for road |
| CN104976552A (en) * | 2015-06-29 | 2015-10-14 | 赛尔富电子有限公司 | Lens device and LED light fixture |
| CN104976552B (en) * | 2015-06-29 | 2017-09-26 | 赛尔富电子有限公司 | A kind of lens devices and LED lamp |
| CN106200117A (en) * | 2016-06-29 | 2016-12-07 | 广州创维平面显示科技有限公司 | Down straight aphototropism mode set and display |
| CN109185775A (en) * | 2018-09-10 | 2019-01-11 | 深圳市昂特尔太阳能投资有限公司 | Laser lamp post structure |
| CN111123415A (en) * | 2018-10-30 | 2020-05-08 | 帝宝工业股份有限公司 | Optical system, optical lens and construction method thereof |
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Application publication date: 20110427 |