CN101260980A - Road lamp possessing elliptical luminous diode - Google Patents
Road lamp possessing elliptical luminous diode Download PDFInfo
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- CN101260980A CN101260980A CNA2007100873046A CN200710087304A CN101260980A CN 101260980 A CN101260980 A CN 101260980A CN A2007100873046 A CNA2007100873046 A CN A2007100873046A CN 200710087304 A CN200710087304 A CN 200710087304A CN 101260980 A CN101260980 A CN 101260980A
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- led
- ellipse
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- street lamp
- light
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- 239000000758 substrate Substances 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 abstract 3
- 229910052736 halogen Inorganic materials 0.000 description 8
- 150000002367 halogens Chemical class 0.000 description 8
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 5
- 229910052721 tungsten Inorganic materials 0.000 description 5
- 239000010937 tungsten Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005286 illumination Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 230000003760 hair shine Effects 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
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- 239000007787 solid Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 238000005728 strengthening 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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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a streetlamp provided with oval LEDs, comprising a lamp-post, a lamp housing body and a plurality of oval LEDs, wherein, the power of the oval LEDs is at least 1 W; each oval LED is provided with an LED lens; the light shape ratio of light dispersed by a major axis and a minor axis of a transmission part of the LED lens is between 1.5 and 5. Through different extending parts of the transmission part in the major axis and the minor axis, unsymmetrical light shapes can be projected; and through the extending part of the transmission part in the major axis direction, illuminating light shapes extend outward so as to increase the illuminating range of a light source, thereby the luminous efficiency of the streetlamp can be greatly improved.
Description
Technical field
The present invention relates to a kind of street lamp, particularly relate to a kind of street lamp that increases the tool ellipse LED of range of exposures.
Background technology
Traditional street lamp, its lamp source partly is based on incandescent lamp, Halogen lamp LED.
Incandescent lamp is the most old-fashioned lamp source, still generally uses so far.The principle of incandescent lamp is to utilize electric current to produce high heat by filament and luminous, because tungsten filament has fusing point height, characteristic that evaporation rate is low, so present employed filament is tungsten filament; In lamp inside except tungsten filament, also be filled with in addition inert gas in order to the evaporation rate that reduces tungsten filament with life-saving.That the topmost characteristic of incandescent lamp is is with low cost, color rendering is good and can continuous light tuning; But it is low that shortcoming is an efficient, causes most of electric energy all to distribute with the form of heat, thus when energising, can produce high heat, thereby its life-span is short partially, number generally can be above 1,000 hours during use.
The principle of luminosity of Halogen lamp LED and incandescent lamp are approximate, and its difference is in has filled halogen in Halogen lamp LED, and the halogen in the lamp produces halogen tungsten with filament and circulates, and makes its colour temperature higher, and efficient and life-span are also than incandescent lamp height.Because its colour temperature and color rendering are splendid, and have quite good collection optical activity, so often be used as the lamp source of accent light.
But Halogen lamp LED and incandescent lamp are same efficient not high, and the shortcoming of a large amount of heat energy dissipations, therefore make its life-span not long yet, and number generally is no more than 2,000 hours during use.
Therefore, along with the progress of science and technology, transitional street lamps utilizes light emitting diode (LED), High Power LED to replace incandescent lamp, Halogen lamp LED gradually, improves low defective in service life.Though light emitting diode has the long advantage of power saving, life-span, still, unique shortcoming is, the irradiating angle of light emitting diode only concentrates on the centre position of luminous head, light shape no change, if the secondary optics of not arranging in pairs or groups uses, the light loss consumption is high, makes the light efficiency rate variance.Therefore, merely light emitting diode, High Power LED are applied on the street lamp, reach the mandatory rule of street lamp, power must significantly improve, but province's electrical efficiency is had a greatly reduced quality.
With reference to figure 1, be a kind of partial view of street lamp of existing light emitting diode.
So, generally use the street lamp 100 of light emitting diode (LED), for strengthening its illuminance (Lux, candle light), must cooperate the lens (Lens) 103 that are added between light emitting diode (LED) 101 and the lamp housing body 102,, improve the light illumination of street lamp by the occupation mode of secondary optics.
Though High Power LED 101 adds lens (Lens) 103, can by the application of secondary optics, what street lamp 100 can be reached meet standard requires light shape.But, add the mode of lens (Lens) 103, not only significantly increase the area of whole street lamp 100 lamp bodies, and the area of circuit substrate (PCB) 104, and be difficult for assembling; In addition,, cause the arrangement of light emitting diode 101 too to disperse, cause the light source of whole LED light lamp group not concentrate on the contrary, thereby influence the whole illumination (Lux) of street lamp 100 because of the volume of lens (Lens) 103 has taken the area of lamp housing major part.
With reference to figure 2, shine in the road surface 105 vertical view for street lamp 100 its light sources of existing light emitting diode.
With reference to figure 1 and Fig. 2.Because being limited in scope of street lamp 100 its light source irradiations of existing light emitting diode, therefore, special 105 zones, road surface in accent light, the use amount of street lamp 100 certainly will increase, so, though light emitting diode has power saving effect, the increase of street lamp 100 quantity, and set up under the prerequisite of lens (Lens) 103, whole material cost, grid electricity fee cost then improve relatively; So under the situation that global energy reduces gradually, be necessary to seek again solution really.
Summary of the invention
The object of the present invention is to provide a kind of street lamp of tool ellipse LED, the ellipse LED that produces asymmetric light source is incorporated on the street lamp, in order to solve the existing street lamp that uses light emitting diode, it is adopted secondary optics and causes the increase of lamp group volume, circuit substrate amplification and problems such as assembling is difficult for.
To achieve these goals, the invention provides a kind of street lamp of tool ellipse LED, comprise a lamp stand, a lamp housing body, and several ellipse LEDs.
This lamp housing body is installed in this lamp stand one end.Each ellipse LED is installed on this lamp housing body, and each ellipse LED has the chip body of at least 1 watt of a power (W), and a led lens.This led lens is located on this chip body, and has a transmissive portions, and this transmissive portions has a major axis and a minor axis, and the light shape ratio that wherein this major axis and minor axis scattered is between 1.5 to 5.
At least 1 watt of the power of ellipse LED of the present invention (W), the light shape ratio that major axis and minor axis scattered of this led lens is between 1.5 to 5, by the part of transmissive portions in major axis and short-axis direction extension, can project asymmetric smooth shape, but also by the major axis part, irradiates light shape is more stretched out,, and optical efficiency is significantly promoted with amplification light source range of exposures.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 is a kind of partial sectional view of street lamp of existing light emitting diode;
Fig. 2 is that its light source of street lamp of existing light emitting diode shines the vertical view in the road surface;
Fig. 3 is the side view of the street lamp of first embodiment of the invention tool ellipse LED;
Fig. 4 is the assembled sectional view of this lamp housing body of the present invention and several ellipse LEDs;
Fig. 5 is the stereogram of ellipse LED;
Fig. 6 is arranged in the plane of this lamp housing body for several ellipse LEDs;
Fig. 7 is the side view of ellipse LED;
Fig. 8 is the opposite side view of ellipse LED;
Fig. 9 is that the light source of the street lamp of tool ellipse LED of the present invention shines the vertical view in the road surface;
Figure 10 is the plane of street lamp of the tool ellipse LED of second embodiment of the invention;
Figure 11 is the plane of street lamp of the tool ellipse LED of third embodiment of the invention;
Figure 12 is the major axis X of ellipse LED of the present invention and the curve map of its light source irradiating angle of minor axis Y.
Wherein, Reference numeral:
100: street lamp 101: light emitting diode
102: lamp housing body 103: lens
104: circuit substrate 105: road surface
200: street lamp 210: lamp stand
220 ': lamp housing body 220 ": the lamp housing body
222: the second shell portions of 221: the first shell portions
230: circuit substrate 300: ellipse LED
300 ': ellipse LED 310: chip body
320: led lens 321: transmissive portions
3211: oval cross section 330: terminal
400: road surface X: major axis
Y: minor axis
The specific embodiment
With reference to figure 3, be the side view of the street lamp with ellipse LED of first embodiment of the invention.
With reference to figure 4, be the assembled sectional view of this lamp housing body of the present invention and several ellipse LEDs.
With reference to figure 3 and Fig. 4, the street lamp 200 of tool ellipse LED of the present invention comprises a lamp stand 210, a lamp housing body 220, and several ellipse LEDs (LED) 300.
This lamp housing body 220 is installed in an end 211 of this lamp stand 210.This lamp housing body 220 comprises one first shell portion 221 and one second shell portion 222, and this first shell portion 221 is combined into one mutually with this second shell portion 222, and is installed with a circuit substrate (PCB) 230 in the first shell portion 221.
With reference to figure 6, be arranged in the plane of this lamp housing body for several ellipse LEDs.
With reference to figure 7, be the side view of ellipse LED.
With reference to Fig. 4, Fig. 6 and Fig. 7, these ellipse LEDs 300 can be arrayed on this circuit substrate 230, and are placed in this lamp housing body 220 inside.Each ellipse LED 300 has a power chip body 310, the led lens 320 of 1W at least, and two-terminal 330.
With reference to figure 5, be the stereogram of ellipse LED.
With reference to figure 5, Fig. 6 and Fig. 7, this led lens 320 is located on this chip body 310, and this led lens 320 also has a transmissive portions 321.This transmissive portions 321 is three-dimensional half elliptic, and has an oval cross section 3211.In the present embodiment, oval cross section 3211 is the inner surface of transmissive portions 321 adjacent to this chip body 310.Oval cross section 3211 has a major axis X and a minor axis Y, and wherein the light shape ratio of this major axis X and the scattering of minor axis Y institute is more than or equal between 1.5 to 5.Just, the irradiates light shape ratio of major axis X and minor axis Y is between 1.5 to 5.
In the present invention, this led lens 320 can be part ducted body or solid.Just transmissive portions 321 can all fully fill up these led lens 320 inside (being solid this moment) or partly fill up these led lens 320 inside (being the part ducted body this moment), all can reach identical effect, the graphic and explanation of no longer many draftings.
With reference to figure 8, be the opposite side view of ellipse LED.
With reference to figure 5, Fig. 7 and Fig. 8, in the present embodiment, fill up these led lens 320 inside with transmissive portions 321 parts and explain.Because ellipse of the present invention is sent out diode 300 the major axis X of oval cross section 3211 and the ratio of minor axis Y direction extension, at least 1.5: 1 (ratio is 1.5); Therefore, after ellipse LED 300 energising, if the light angle θ that minor axis Y direction is projected is 45 degree, then the light angle θ 1 that projects of major axis directions X can reach 135 degree.Relative, when the extension ratio of major axis directions X and minor axis Y direction is made as 5: 1 (ratio is 5), if the light angle θ that minor axis Y direction projects is set at 30 degree, then the light angle θ 1 that projected of major axis directions X can be up to 150 degree, and then obtain the application target with the wide-angle throw light.
With reference to Figure 12, the curve map of the light shape angle that is scattered for the major axis X and the minor axis Y of ellipse LED of the present invention.
Draw through test, the light shape angle θ that the major axis X of ellipse LED of the present invention is scattered is much larger than the light shape angle θ of minor axis Y.Therefore, be used on the street lamp 100, the scope of certain extensible irradiation is to promote whole illuminance (Lux).
With reference to figure 9, for the light source of the street lamp of tool ellipse LED of the present invention shines vertical view in the road surface.
With reference to figure 7, Fig. 8 and Fig. 9, this shows that this ellipse LED 300 of the present invention can make each ellipse LED 300 produce asymmetric light source in the asymmetric ratio of major axis X and minor axis Y direction extension.Therefore, the part of major axis directions X can project the wider rectangular oval-shaped smooth shape of scope, like this, and when applying to road surface 400, than the shortcoming that the projection scope is short, street lamp 100 use amounts increase relatively of the known light emitting diode road lamp 100 of Fig. 2; The street lamp 200 of tool ellipse LED of the present invention is the optical efficiency height not only, meets the light shape of mandatory rule again, and, can reduce the use amount of street lamp 200, to reduce use cost.
With reference to Figure 10, be the plane of the street lamp of the tool ellipse LED of second embodiment of the invention.
With reference to Figure 11, be the plane of the street lamp of the tool ellipse LED of third embodiment of the invention.
The power of each ellipse LED 300 of this first embodiment is the high-capacity LED of 1 watt (W) in Fig. 6, therefore, illuminance (the Lux that each ellipse LED 200 is projected, candle light) unanimity, and this street lamp 200 is incident upon the light source on road surface 400, in the middle part, the outer circumferential side position presents equally distributed state.
And the street lamp 200 ' of the second embodiment tool ellipse LED of Figure 10, all structures are all identical with first embodiment, the difference part is: the ellipse LED 300 ' in this lamp housing body 220 ' centre position that will distribute is set as the oval LED structure of high power of higher wattage (W), for example: 2 watts (W), 3 watts (W).And the ellipse LED 300 of this lamp housing body 220 ' outer circumferential side position that distributes still uses the oval LED of the high power of 1 watt (W).Like this, can be by the more high-power ellipse LED 300 ' of street lamp 200 ' position in the middle of it, as the centralized lighting effect of the catch light illumination (Lux) of key area.
And the street lamp 200 of the 3rd embodiment tool ellipse LED of Figure 11 "; all structures are all identical with first embodiment; the difference part is: this lamp housing body 220 will distribute " ellipse LED 300 ' of outer circumferential side position is set as the oval LED structure of high power of higher wattage (W), for example: at least 2 watts (W) or 3 watts (W).And this lamp housing body 220 that distributes " ellipse LED 300 in centre position still uses the oval LED of high power of 1 watt (W).Like this, can be by street lamp 200 " the more high-power ellipse LED 300 ' of outer circumferential side position, as the illuminating effect that extends illumination zone.
Comprehensively above-mentioned, the street lamp 200,200 ', 200 of tool ellipse LED of the present invention "; utilize ellipse LED 300,300 ' self structure; can reach the light shape of rules demand; not only save the use cost of secondary optics; and remove known street lamp and need add lens (Lens) 103 and cause taking up room and increase defective such as cost; make street lamp 200,200 ', 200 of the present invention " shell lamp body 220,220 ', 220 " can reduce relatively, dwindling entire area, and also more simple and easy in the assembling.Therefore, the present invention removes can save material cost, makes that also ellipse LED 300,300 ' is more concentrated on arranging, to improve whole optical efficiency.
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 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 (7)
1. the street lamp of a tool ellipse LED is characterized in that, includes:
One lamp stand;
One lamp housing body is installed in this lamp stand one end; And
A most ellipse LED are installed on this lamp housing body, and each ellipse LED has the chip body of at least 1 watt of a power, and a led lens; This led lens is located on this chip body, and has a transmissive portions; This transmissive portions has a major axis and a minor axis, and the light shape ratio that wherein this major axis and minor axis scattered is between 1.5 to 5.
2. the street lamp of ellipse LED according to claim 1 is characterized in that, this transmissive portions is three-dimensional half elliptic, and has an oval cross section, and this oval cross section has this major axis and this minor axis.
3. the street lamp of ellipse LED according to claim 1, it is characterized in that this lamp housing body has a shell portion, and a circuit substrate, this circuit substrate is installed in this shell portion, and this ellipse LED is arrayed and is placed on this circuit substrate.
4. the street lamp of ellipse LED according to claim 3 is characterized in that, the power of ellipse LED that is distributed in this circuit substrate centre position is greater than the ellipse LED that is distributed in this circuit substrate outer circumferential side position.
5. the street lamp of ellipse LED according to claim 3 is characterized in that, the power of ellipse LED that is distributed in this circuit substrate outer circumferential side position is greater than the ellipse LED that is distributed in this circuit substrate centre position.
6. the street lamp of ellipse LED according to claim 1 is characterized in that, this transmissive portions fills up partially is located at this led lens inside.
7. the street lamp of ellipse LED according to claim 1 is characterized in that, this transmissive portions fully fills up is located at this led lens inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100873046A CN101260980A (en) | 2007-03-09 | 2007-03-09 | Road lamp possessing elliptical luminous diode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100873046A CN101260980A (en) | 2007-03-09 | 2007-03-09 | Road lamp possessing elliptical luminous diode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101260980A true CN101260980A (en) | 2008-09-10 |
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ID=39961591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100873046A Pending CN101260980A (en) | 2007-03-09 | 2007-03-09 | Road lamp possessing elliptical luminous diode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101260980A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374494A (en) * | 2010-08-16 | 2012-03-14 | 华信精密股份有限公司 | Light guide body |
| CN103180659A (en) * | 2010-11-09 | 2013-06-26 | 通用电气照明解决方案有限责任公司 | Led lamp |
| CN103542334A (en) * | 2013-10-29 | 2014-01-29 | 广西桂林宇川光电科技有限公司 | LED (light-emitting diode) streetlamp |
-
2007
- 2007-03-09 CN CNA2007100873046A patent/CN101260980A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374494A (en) * | 2010-08-16 | 2012-03-14 | 华信精密股份有限公司 | Light guide body |
| CN103180659A (en) * | 2010-11-09 | 2013-06-26 | 通用电气照明解决方案有限责任公司 | Led lamp |
| US10400959B2 (en) | 2010-11-09 | 2019-09-03 | Lumination Llc | LED lamp |
| CN103542334A (en) * | 2013-10-29 | 2014-01-29 | 广西桂林宇川光电科技有限公司 | LED (light-emitting diode) streetlamp |
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Open date: 20080910 |