CN102734646A - LED downlight - Google Patents
LED downlight Download PDFInfo
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- CN102734646A CN102734646A CN2011100830032A CN201110083003A CN102734646A CN 102734646 A CN102734646 A CN 102734646A CN 2011100830032 A CN2011100830032 A CN 2011100830032A CN 201110083003 A CN201110083003 A CN 201110083003A CN 102734646 A CN102734646 A CN 102734646A
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- down lamp
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Abstract
The invention discloses an LED downlight, including a light source. The light source comprises at least one white light LED and at least one colorful light LED. At least one colorful light LED besides at least one white light LED is used in the light source of the LED downlight of the invention. By being mixed, the light emitted by various colorful light LEDs can produce illumination effects which are soft, non-glare and high in color rendering. On top of that, through independent control for luminous flux of the various colorful light LEDs, the flexible adjustment for light emitting color temperature, color, brightness and color rendering of the LED downlight can be realized, thereby creating a better illumination environment.
Description
Technical field
The present invention relates to a kind of light fixture, particularly relate to a kind of LED Down lamp.
Background technology
At present; Along with expanding economy, room lighting, Landscape Lighting and architectural lighting obtain increasing concern and attention, and illumination is only paid attention to brightness from what begin most; To the modern aesthetic feeling of when pursuing brightness, pursuing; Incorporate high-tech by now from initial general lighting source, lighting source, illumination gimmick become more diverse, and make the city of China more and more beautiful night.To different environment with need in, need the different white light of colour temperature, the suitable warm white that uses of some occasion for example, other occasions are suitable uses cold white light, and independent white light LEDs can not accomplish the adjustable continuously of colour temperature, lack variation.
In addition, light source is called colour rendering to the colour developing ability of object, be through with the reference of colour temperature or reference light source (incandescent lamp or the draw light) comparison of object appearance color down.Drill colour index coefficient (Kaufman) still for defining the common method that color rendering properties of light source is estimated at present.Under the situation of only using white light LEDs, colour rendering index Ra generally has only about 82, therefore also is necessary to find a kind of method that improves the colour rendering index of white light LEDs.The most widely used no more than the white-light illuminating light fixture in various illumination occasions; If yet directly adopt single white light LEDs to be used as the light source in the light fixture; Because the illuminating effect of white light LEDs exists dazzling not soft, defective that colour rendering is lower, the result of use of the white-light illuminating light fixture that therefore so constitutes is obviously comparatively not good.In addition, the light emission color temperature of each white light LEDs all is by its inner objective decision of luminescent material, under different application scenarios, can not change light emission color temperature neatly.
Summary of the invention
The technical problem that the present invention will solve be for overcome prior art adopt white light LEDs as the white-light illuminating light fixture of light source exist illuminating effect dazzling not soft, colour rendering is lower; And can't change the defective of light emission color temperature neatly; Provide a kind of illuminating effect soft not dazzling, colour rendering is higher, and can change the LED Down lamp of light emission color temperature neatly.
The present invention solves above-mentioned technical problem through following technical proposals:
A kind of LED Down lamp, it comprises a light source, its characteristics are that this light source comprises at least one white light LEDs and at least one glory LED.
Preferably, this at least one glory LED comprises the LED of more than one coloured light.
Preferably, the power of this at least one white light LEDs accounts for more than 30% of this light source general power.
Preferably, this at least one glory LED comprises: at least one red-light LED, at least one green light LED and at least one blue-ray LED.
Preferably, this LED Down lamp also comprises the control module that links to each other with this light source, and this control module is used for controlling the luminous flux of LED of every kind of coloured light of this light source, makes that the luminous flux of LED of every kind of coloured light is adjustable separately.
Preferably, this control module is used for the mode with the operating current of the LED of the every kind of coloured light that changes this light source independently, realizes adjustable separately to the luminous flux of the LED of every kind of coloured light in this light source.
Preferably, this LED Down lamp also comprises lens, and these lens are used to mix and converge the light beam of this light emitted.
Preferably, these lens are lens with TIR structure (Total Internal Reflection, total reflection) or the lens with reflecting cup structure.
Preferably, this LED Down lamp also comprises a cover glass, the outgoing behind this cover glass of the emitted light beams of this light source.
Positive progressive effect of the present invention is: in the light source of this LED Down lamp of the present invention except adopting at least one white light LEDs; Also adopted at least one glory LED, the light that LED sent of these various coloured light can form soft not dazzling and illuminating effect that colour rendering is higher after mix.On this basis, the independent control through to the luminous flux of the LED of various coloured light can also realize the flexible to light emission color temperature, color, brightness and the colour rendering of this LED Down lamp of the present invention, thereby build better lighting environment.
Description of drawings
Fig. 1 is the profile of LED Down lamp of the present invention.
The specific embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to specify technical scheme of the present invention.
With reference to figure 1, LED Down lamp of the present invention comprises a light source 7, and wherein this light source 7 comprises a plurality of white light LEDs and a plurality of glory LED.The glory LED here refers to those luminous colors neither the white light LEDs of standard white light, the white light LEDs of also non-emission warm white or cold white light, for example common red-light LED, green light LED, blue-ray LED.
Specifically, these a plurality of glory LED comprise the LED of more than one coloured light.In the present invention; The a plurality of glory LED of in this light source this both can all belong to the LED with a kind of coloured light, for example all selected red-light LED for use, also can belong to the LED of two or more coloured light respectively; For example some of them glory LED selects red-light LED for use, and remaining glory LED then selects green light LED for use.The designer of this LED Down lamp can select the coloured light kind that comprises among these a plurality of glory LED according to concrete application scenario neatly, and in addition, the concrete quantity of the LED of every kind of coloured light equally also can be by designer's flexible design.
Adopt the application scenario of white-light illuminating light fixture to needs; The luminous color of this LED Down lamp of the present invention should be main keynote with the luminous color of white light LEDs; These a plurality of glory LED then only play booster action; Preferably, can be to account for more than 30% of this light source general power with the power designs of these a plurality of white light LEDs in this light source.The illuminating effect of single white light LEDs is comparatively dazzling usually not soft, and colour rendering is lower, and after being aided with a plurality of glory LED, then can obtain comparatively soft not dazzling, and the illuminating effect that greatly improves of colour rendering.
Comparatively commonly used, in order to obtain comparatively even and soft white light, these a plurality of glory LED comprise: at least one red-light LED, at least one green light LED and at least one blue-ray LED.
In order to strengthen the luminous flexibility of this LED Down lamp; This LED Down lamp also comprises the control module that links to each other with this light source 7; This control module is used for controlling the luminous flux of LED (LED that comprises white light LEDs and every kind of colored coloured light) of every kind of coloured light of this light source, makes that the luminous flux of LED of every kind of coloured light is adjustable separately.Independent control like this is except can realizing the flexible to the luminosity of whole this LED Down lamp; In fact also changed the proportion relation between the luminous luminous flux of LED of various coloured light; Thereby realized the flexible to the light emission color temperature of this LED Down lamp, this will make this LED Down lamp of the present invention can be applicable to various application scenarios.
The means of regulating the luminous flux of above-mentioned LED have multiple, and comparatively commonly used is, and this control module is used for the mode of the operating current of the LED of every kind of coloured light changing this light source independently, realize adjustable separately to the luminous flux of the LED of every kind of coloured light in this light source.
Because the emission light beam of LED can not only propagated on a certain direction; In order to improve the utilization rate of light beam; All scattered beams are all used; And in order to obtain even and soft light beam, this LED Down lamp also comprises lens, and these lens are used to mix and converge the light beam of this light emitted.Preferably, these lens are one to have the lens of TIR structure or have the lens of reflecting cup structure, and these lens also can have compound eye structural.
In order to make outgoing beam more soft, this LED Down lamp also comprises a cover glass, the outgoing behind this cover glass of the emitted light beams of this light source.
For the ease of it will be apparent to those skilled in the art that the present invention, lift an application example and describe, wherein be example with the Down lamp, this Down lamp be used for one need carry out white-light illuminating occasion.
With reference to figure 1, this LED Down lamp comprises lamp housing 3 and power supply 5, and the function of power supply 5 is the direct currents that the door alternating current of 220V are converted into LED and control module use, is the power supply of LED and control module.Power supply 5 is positioned at the integrally-built tail end of light fixture.What link to each other with power supply 5 is control module 4, and control module 4 links to each other with light source 7, and control module 4 is controlled the luminous fluxes of each LED in the light sources separately when being light source 7 power supplies, to obtain the white light of desired color temperature.
In the present embodiment, light source comprises 4 LED, is respectively white light LEDs, red-light LED, blue-ray LED and green light LED, and described 4 LED are one encapsulation and link to each other with control module 4.And lens 6 are set on the emitting light path of light source; What adopt here is Conical Lenses; Make the luminous flux of 4 LED light carry out optically focused by lens, make the emission light beam of 4 LED fully mix the mixed light that forms smaller angle through after the control proportioning of control module.Through after the lens 6,4 LED also are utilized to the light beam of all directions scattering originally, make the emission light beam fully mix, gather the formation mixed white light.Last mixed white light is through cover glass 2 back outgoing, and cover glass 2 is fixed on this lamp housing 3 through threaded ring 1.
More specifically, each one of the green light LED of the white light LEDs of instance employing 1W of the present invention, the red-light LED of 1W, 1W, the blue-ray LED sheet of 1W, 4 chips are the one enclosed construction.The white light that white light LEDs sends is produced by blue chip+YAG aluminate yellow fluorescent powder, and the peak wavelength of blue chip is 450nm, and the peak wavelength of yellow fluorescent powder is 550nm; The white light colour temperature that white light LEDs sends under the current drives of 350mA is 6000K, and luminous flux is 102lm.The ruddiness peak wavelength that red-light LED sends under the current drives of 350mA is 620nm, and luminous flux is 32lm; The green glow peak wavelength that green light LED sends under the current drives of 350mA is 520nm, and luminous flux is 68lm; The blue light peak wavelength that blue-ray LED sends under the current drives of 350mA is 450nm, and luminous flux is 7.2lm.Total luminous flux is 209.2lm.
Behind 4 LED emission light beams through lens 6; Make the diverging light of LED converge to the less light beam of angle and propagate, in addition, 4 kinds of photochromic one that are mixed into that also make 4 LED send; Form uniform mixed light, utilization rate is 87.5% behind the emission light beam scioptics of 4 LED.In the present embodiment, the luminous flux of 4 LED carries out optically focused through after the proportioning by lens 6, fully mixes to form low-angle mixed light.The light transmission rate of cover glass is about 90%, and when total flux was 209.2lm, finally the luminous flux from the lamp surface emergent light was 209.2*87.5%*90% ≈ 164.8lm, at irradiation 1m
2During area, can obtain the illumination of 165lux.
The lamp interior of present embodiment has been arranged 4 LED of one encapsulation, and power supply is equipped with in the bottom, is used for power supply and integrated control module, can control the flux ratio of RGBW (red, green, blue and white) four kinds of colors.The light of 4 kinds of colors sends from lamp interior, and the optically focused through lens mixes each coloured light fully, from the lamp surface outgoing, thus the illumination sense of realizing ideal.
Though more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is limited appended claims.Those skilled in the art can make numerous variations or modification to these embodiments under the prerequisite that does not deviate from principle of the present invention and essence, but these changes and modification all fall into protection scope of the present invention.
Claims (9)
1. LED Down lamp, it comprises a light source, it is characterized in that, this light source comprises at least one white light LEDs and at least one glory LED.
2. LED Down lamp as claimed in claim 1 is characterized in that, this at least one glory LED comprises the LED of more than one coloured light.
3. LED Down lamp as claimed in claim 2 is characterized in that the power of this at least one white light LEDs accounts for more than 30% of this light source general power.
4. LED Down lamp as claimed in claim 3 is characterized in that, this at least one glory LED comprises: at least one red-light LED, at least one green light LED and at least one blue-ray LED.
5. like any described LED Down lamp among the claim 1-4; It is characterized in that; This LED Down lamp also comprises the control module that links to each other with this light source, and this control module is used for controlling the luminous flux of LED of every kind of coloured light of this light source, makes that the luminous flux of LED of every kind of coloured light is adjustable separately.
6. LED Down lamp as claimed in claim 5 is characterized in that this control module is used for the mode with the operating current of the LED of the every kind of coloured light that changes this light source independently, realizes adjustable separately to the luminous flux of the LED of every kind of coloured light in this light source.
7. LED Down lamp as claimed in claim 5 is characterized in that, this LED Down lamp also comprises lens, and these lens are used to mix and converge the light beam of this light emitted.
8. LED Down lamp as claimed in claim 7 is characterized in that, these lens are one to have the lens of TIR structure or have the lens of reflecting cup structure.
9. LED Down lamp as claimed in claim 5 is characterized in that, this LED Down lamp also comprises a cover glass, the outgoing behind this cover glass of the emitted light beams of this light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100830032A CN102734646A (en) | 2011-04-01 | 2011-04-01 | LED downlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100830032A CN102734646A (en) | 2011-04-01 | 2011-04-01 | LED downlight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102734646A true CN102734646A (en) | 2012-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100830032A Pending CN102734646A (en) | 2011-04-01 | 2011-04-01 | LED downlight |
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| CN (1) | CN102734646A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314326A (en) * | 2017-08-18 | 2017-11-03 | 张玉森 | A kind of stealthy high beam |
| CN107869701A (en) * | 2016-09-23 | 2018-04-03 | 欧司朗股份有限公司 | The method of lighting device and operating lighting means |
| CN107869687A (en) * | 2016-09-22 | 2018-04-03 | 广州市新晶瓷材料科技有限公司 | A kind of white light source of low-angle |
| CN111071145A (en) * | 2018-10-19 | 2020-04-28 | 郑州宇通客车股份有限公司 | Vehicle and lamp strip arrangement structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107869687A (en) * | 2016-09-22 | 2018-04-03 | 广州市新晶瓷材料科技有限公司 | A kind of white light source of low-angle |
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| CN111071145A (en) * | 2018-10-19 | 2020-04-28 | 郑州宇通客车股份有限公司 | Vehicle and lamp strip arrangement structure |
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Application publication date: 20121017 |