CN202229027U - LED (light-emitting diode) street lamp with high color rendering index - Google Patents
LED (light-emitting diode) street lamp with high color rendering index Download PDFInfo
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- CN202229027U CN202229027U CN201120383317XU CN201120383317U CN202229027U CN 202229027 U CN202229027 U CN 202229027U CN 201120383317X U CN201120383317X U CN 201120383317XU CN 201120383317 U CN201120383317 U CN 201120383317U CN 202229027 U CN202229027 U CN 202229027U
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- Prior art keywords
- led
- light
- street lamp
- lamp
- rendering index
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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 utility model discloses an LED (light-emitting diode) street lamp with high color rendering index, which comprises a lamp housing, a base plate fixed on the lamp housing and LEDs arrayed on the base plate, wherein the LEDs comprise multiple white light LEDs and at least one red light LED. According to the utility model, the red light LED(s) is/are added to the light source of the LED street lamp, and the long wavelength spectrum that the white light LEDs is in short of is completed, so that the color reducibility of the LED street lamp is obviously improved, and the color rendering index is increased; besides, the LED street lamp can be reasonably regulated under the conditions of high lighting effect and low cost, so that the unnecessary loss caused when the lighting effect is scarified to improve the color rendering index in the prior art is avoided.
Description
[technical field]
The utility model relates to a kind of LED street lamp, refers in particular to a kind of LED street lamp of high apparent finger.
[background technology]
The equal radiation continuous spectrum of sunshine and incandescent lamp in wavelength of visible light (380nm-760nm) scope, is comprising various coloured light such as red, orange, yellow, green, blue, blue, purple.Object demonstrates its true colors under the irradiation of sunshine and incandescent lamp, but works as object under the irradiation of the gas-discharge lamp of discrete spectrum, and color relation has distortion in various degree.Light source is called colour rendering to the degree that appears of object true colors, and Ra representes with colour rendering index, and the Ra value is big more, and the colour rendering of light source is good more.Colour rendering index is the quantitative assessment to color rendering properties of light source, is as the criterion with standard sources, and the colour rendering index of incandescent lamp is defined as 100, is regarded as desirable reference light source, and the colour rendering index of all the other light sources all is lower than 100.
The spectrum of LED is very narrow, generally all is now to adopt blue chip to join yellow fluorescent powder to obtain white light, and the white light that this method obtains lacks the long wavelength's of red spectral band spectrum, thereby causes colour rendering index very low.The LED street lamp requires very high for light efficiency; Must reach the light efficiency requirement of road lighting, however its apparent finger (colour rendering index) of the lifting of the light efficiency of LED own will descend, this makes that the apparent finger of LED street lamp of high light efficiency is very low; Refer to if improve to show; The light efficiency of LED street lamp will be had a greatly reduced quality, and high show refer to, the LED price of high light efficiency is also very high, this has restricted the range of choice of downstream application industry to a certain extent; Therefore people thirst for obtaining always a kind of high light efficiency, simultaneously cheaply, keep the high LED street lamp that refers to that shows.
[utility model content]
To the not high technological deficiency of apparent finger that LED street lamp in the prior art exists, the purpose of the utility model is to provide a kind of high apparent finger, high light efficiency, LED street lamp cheaply.
In order to reach above-mentioned technical purpose; The technical scheme that the utility model is taked is a kind of LED street lamp of high apparent finger; Comprise lamp housing, be fixed on substrate and the LED of array on substrate on the lamp housing, said LED comprises many white light LEDs and at least one red-light LED.
Preferably, said many white light LEDs are connected in parallel after being connected into many group LED lamp groups, and at least one group of LED lamp group is in series with red-light LED in said many group LED lamp groups.
Preferably, the peak wavelength of said red-light LED is between 620～660nm.
Preferably, the peak wavelength of said red-light LED is between 630～650nm.
Preferably, the peak wavelength of said red-light LED is 645nm.
The utility model has added red-light LED in the light source of LED street lamp; Completion long wavelength's the spectrum of white light LEDs disappearance; Obviously improved the color reducibility of LED street lamp; Improved colour rendering index, and can be at high light efficiency, carry out rational allocation under the condition cheaply, avoided in the prior art improving to show referring to the unnecessary loss brought with the mode of sacrificing light efficiency.
[description of drawings]
Shown in Figure 1 is the structural representation of the utility model;
Shown in Figure 2ly be that the utility model circuit connects sketch map.
[specific embodiment]
Technical scheme for further detailed elaboration the utility model is elaborated below in conjunction with accompanying drawing.
Like Fig. 1, shown in Figure 2, the utility model discloses a kind of LED street lamp of high apparent finger, comprise lamp housing 1, be fixed on substrate 2 and the LED of array on substrate 2 on the lamp housing, said LED comprises many white light LEDs 3 and at least one red-light LED 4.
Said many white light LEDs 3 of the utility model are connected in parallel after being connected into five groups of LED lamp group L1, L2, L3, L4, L5; Said LED lamp group L1, L2, L3, L4, L5 are in series with red-light LED 4 at least one group; As shown in Figure 2; LED lamp group L1 is in series with a red-light LED 4, and a required number and the distribution position of red-light LED 4 can be carried out rational allocation according to actual conditions.
The peak wavelength of the said red-light LED 4 of the utility model is between 620～660nm; The peak wavelength that also can select red-light LED 4 is between 630～650nm; The peak wavelength of preferred red-light LED 4 is 645nm.
The utility model has added red-light LED in the light source of LED street lamp; Completion the spectrum of long-wave band of white light LEDs disappearance; Obviously improved the color reducibility of LED street lamp; Improved colour rendering index, and can be at high light efficiency, carry out rational allocation under the condition cheaply, avoided in the prior art improving to show referring to the unnecessary loss brought with the mode of sacrificing light efficiency.
The above only with convenient explanation the utility model, in not breaking away from the creation spirit category of the utility model, knows this technological any simple modification and distortion that personnel did, still belongs to the protection domain of the utility model.
Claims (5)
1. the LED street lamp of a high apparent finger comprises lamp housing, is fixed on substrate and the LED of array on substrate on the lamp housing, and it is characterized in that: said LED comprises many white light LEDs and at least one red-light LED.
2. the LED street lamp of a kind of high apparent finger according to claim 1 is characterized in that: said many white light LEDs are connected in parallel after being connected into many group LED lamp groups, and at least one group of LED lamp group is in series with red-light LED in said many group LED lamp groups.
3. the LED street lamp of a kind of high apparent finger according to claim 2, it is characterized in that: the peak wavelength of said red-light LED is between 620～660nm.
4. the LED street lamp of a kind of high apparent finger according to claim 3, it is characterized in that: the peak wavelength of said red-light LED is between 630～650nm.
5. the LED street lamp of a kind of high apparent finger according to claim 4, it is characterized in that: the peak wavelength of said red-light LED is 645nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120383317XU CN202229027U (en) | 2011-09-30 | 2011-09-30 | LED (light-emitting diode) street lamp with high color rendering index |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120383317XU CN202229027U (en) | 2011-09-30 | 2011-09-30 | LED (light-emitting diode) street lamp with high color rendering index |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202229027U true CN202229027U (en) | 2012-05-23 |
Family
ID=46079613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120383317XU Expired - Fee Related CN202229027U (en) | 2011-09-30 | 2011-09-30 | LED (light-emitting diode) street lamp with high color rendering index |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202229027U (en) |
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2011
- 2011-09-30 CN CN201120383317XU patent/CN202229027U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20160930 |