CN103712110A - Method for selectively distributing color temperature in illuminated area of LED lamp - Google Patents
Method for selectively distributing color temperature in illuminated area of LED lamp Download PDFInfo
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- CN103712110A CN103712110A CN201410006344.3A CN201410006344A CN103712110A CN 103712110 A CN103712110 A CN 103712110A CN 201410006344 A CN201410006344 A CN 201410006344A CN 103712110 A CN103712110 A CN 103712110A
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Abstract
The invention discloses a method for selectively distributing color temperature in an illuminated area of an LED lamp. The light source of the lamp is arranged to be a central light source and outer ring light sources, the central light source is arranged at the central position of the light source of the lamp, and the outer ring light sources are evenly and symmetrically distributed around the central light source. The distance between the inner sides of the outer ring light sources and the outer side of the central light source is larger than or equal to 10mm. The central light source is a light-emitting diode with the full-half angle width smaller than or equal to 80 degrees, and the outer ring light sources are light-emitting diodes with the full-half angle width smaller than or equal to 130 degrees. The central light source is the light-emitting diode light source with red light or blue light or white light. The outer ring light sources are the light-emitting diode light sources with white light, and the related color temperature of the outer ring light sources differs by more than 1000K from that of the central light source, and the central light source and the outer ring light sources of the lamp are provided with high-reflectance reflection bowls respectively. The multi-chroma and high-directionality characteristics of the LED light sources are utilized fully, and the related color temperature in the circular or quasi-circular illuminated area of the LED lamp can be distributed selectively.
Description
The application is dividing an application of application number 201210068184.6, the applying date: 2012.3.15, title " method of field of illumination colour temperature selective distribution ".
Technical field
The present invention relates to the method for a kind of field of illumination colour temperature selective distribution.
Background technology
The plurality of advantages such as light emitting diode (Light Emitting Diode-LED) has rich color, electro-optical efficiency is high, volume is little, the life-span is long, safety, energy-saving and environmental protection, be widely used in the applications such as display screen, traffic lights, automobile inside and outside lamp, display backlight source, at present directly target is to replace incandescent lamp and fluorescent lamp, become the 4th generation lighting source.Semiconductor illuminating light source is compared with conventional light source, has resources conservation and eco-friendly feature, is subject to the attention of a plurality of countries in the world, research institution and enterprise.The national semiconductor lighting plan that releases one after another in recent years of the countries such as Japan, the U.S., European Union, Korea S.China is that world's electric lighting is produced, big export country, is again consumption big country.LED industry certainly exists the huge market space under so economic overall situation, but be distributed in the semiconductor lighting leading firm on the ground such as the U.S., Japan, European Union, have core technology patent, utilize the advantage of its patent aspect, attempt by patent barrier being set and formulating industry standard and control the market.Chinese Enterprise and research institution should strengthen the capability of independent innovation, should strive for obtaining patent as much as possible, or the Patent Pool of multi-angle, make great efforts to dissolve the patent infringement risk that Chinese Enterprise is faced with at any time.
In majority of illumination occasion, be there is to basic requirement in the optical parameter indexs such as illumination, colour temperature and development index.Under the prerequisite that some occasion meets the demands in colour rendering index and colour temperature, require illumination to change within the specific limits.Some occasions requires special, and under the prerequisite of wishing to meet the demands in colour rendering index and illumination, colour temperature changes in certain limit.Adopt semiconductor illuminating light source, with respect to conventional light source than being easier to realize these requirements.Patent: the light-mixed type package structure for LED of brightness-adjusting and subregion point bright light source (application number 201020243231.2), the light-mixed type package structure for LED of a kind of brightness-adjusting and subregion point bright light source is proposed, utilize a plurality of different-colour LED light sources and change the method that drive current combines, form brightness and the controlled lighting source of colour temperature.Patent: a kind of LED goes out the controlled novel encapsulated method and apparatus of light color (application number 201110050107.3), propose a kind of LED and go out the controlled novel encapsulated method and apparatus of light color, on and metal material that heat conductivility is good large at a kind of area, by layout points glue housing, divide heat sink area, then die bond, bonding wire and some glue, thereby realized the object that zones of different on same light source is sent different colours, by circuit, can also control light source changes colour simultaneously.Above two patents all by controlling different LED combination of light sources and drive current, realize that color, colour temperature and brightness changes.Environment for use of the present invention is more special, in the field of illumination of requirement light source, correlated colour temperature selectively distributes, both in different field of illuminations, there had been controlled different correlated colour temperatures, fully demonstrated the glamour that LED light source is different from conventional light source, met the instructions for use of special occasions.It should be noted that: although handlebar red light emitting diodes core or red light emitting diodes are embedded in the light fixture in white light emitting diode core or white light emitting diode, but the object that it is done is like this to reduce correlated colour temperature and improve light efficiency, red light emitting diodes core and white light emitting diode core are done to as a whole use, red light emitting diodes core is evenly distributed among white light emitting diode core, the hot spot of wishing to obtain correlated colour temperature uniformity, often adopts the equal tabula rasa of transmission to realize good light mixing effect.
Summary of the invention
The object of the present invention is to provide a kind of feature of utilizing LED light source polychrome degree and high directivity, realize in the circle of LED lamp or similar round field of illumination the selectively method of field of illumination colour temperature selective distribution of correlated colour temperature.
Technical solution of the present invention is:
A method for field of illumination colour temperature selective distribution, is characterized in that: lamp light source is set to central light source and outer shroud light source, and central light source is positioned at the center of lamp light source, and outer shroud light source is distributed in the surrounding of central light source symmetrically; Outer shroud light source inner side is more than or equal to 10 millimeters with the outer lateral extent of central light source; Central light source is that full half-angular breadth is less than or equal to 80 degree light emitting diodes, and outer shroud light source is that full half-angular breadth is less than or equal to 130 degree light emitting diodes; Central light source is the LED source of ruddiness or blue light or white light; Outer shroud light source is that correlated colour temperature and central light source differ white light emitting diode light source more than 1000K; When light fixture central light source is red light source, light fixture outer shroud light source is that correlated colour temperature is more than or equal to 4000K white light source; When light fixture central light source is blue light source, light fixture outer shroud light source is that correlated colour temperature is less than or equal to 6000K white light source; When light fixture central light source correlated colour temperature is less than or equal to 4000K, light fixture outer shroud correlated color temperature of light source is more than or equal to 5000K; When light fixture central light source correlated colour temperature is more than or equal to 5000K, light fixture outer shroud correlated color temperature of light source is less than or equal to 4000K.Light fixture central light source is placed on is inverted heat radiation cone platform bottom outside, and outer shroud light source is placed on is inverted heat radiation cone platform lateral surface, and cone platform lateral surface and base plane angle are more than or equal to 10 degree.
The individual power bracket of light fixture central light source is 0.05-3W, and central light source is that quantity is more than or equal to the individual light sources of 1.
Light fixture central light source is the integrated optical source that power is more than or equal to 0.5W, has convergent lens before central light source, forms the luminous beam that full half-angular breadth is less than or equal to 80 degree.
Light fixture outer shroud light source is white light source, and individual power is 0.05-3W, and outer shroud light source is that quantity is more than or equal to the individual light sources of 4.
Light fixture center individual light sources is welded on an aluminium base or common printed wiring board, and outer shroud light source individuality is welded on an aluminium base or common printed wiring board; Center and outer shroud light source can be the aluminium base or common printed wiring boards of same, and outer shroud light source and light source center distance are more than or equal to 20 millimeters.
Light fixture central light source and outer shroud light source all have high reflectance reverberation bowl, or only have outer shroud strip of light high reflectance reverberation bowl, further control peripheral beam distribution.
The present invention makes full use of the feature of LED light source polychrome degree and high directivity, realizing correlated colour temperature in the circle of LED lamp or similar round field of illumination selectively distributes, in interior ring field of illuminations different from outer shroud, there is the controlled 500K related colour temperature difference that is greater than, meet the instructions for use of special occasions.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is the distribution of light sources schematic diagram of the embodiment of the present invention 1.
Fig. 2 is the distribution of light sources schematic diagram of embodiment 2.
Fig. 3 is the distribution of light sources schematic diagram of embodiment 6.
The specific embodiment
Embodiment 1:
A method for field of illumination colour temperature selective distribution, lamp light source is set to central light source and outer shroud light source, and central light source is positioned at the center of lamp light source, and outer shroud light source is distributed in the surrounding of central light source symmetrically; Lamp light source center is 7 0.06W
direct insertion red light emitting diodes 1, its full half-angular breadth is 60 degree, forms light fixture central light source.38 correlated colour temperature is 6500K, the full half-angular breadth 0.06W's that is 60 degree
direct insertion white light-emitting diode 2 forms outer shroud light source, is distributed in symmetrically the surrounding of central light source.The direct insertion red light emitting diodes 1 of 7 0.06W and 38 direct insertion white light-emitting diodes 2 of 0.06W are all welded on an epoxy printed substrate 3, and 38 direct insertion white light-emitting diodes 1 of 0.06W are 5 centimetres with the distance 4 at epoxy printed substrate 3 centers.
Embodiment 2:
A method for field of illumination colour temperature selective distribution, lamp light source is set to central light source and outer shroud light source, and central light source is positioned at the center of lamp light source, and outer shroud light source is distributed in the surrounding of central light source symmetrically; Lamp light source center is the integrated optical source 5 that 1 5W, correlated colour temperature are 3000K, is added with convergent lens 6 before integrated optical source, forms the convergent beam that full half-angular breadth is 20 degree.Outer shroud light source is that 8 correlated colour temperatures are that 6000K, full half-angular breadth are the 1W white light-emitting diode 7 of 80 degree, is the surrounding that octagon is distributed in center integrated optical source 5 symmetrically, and each 1W white light-emitting diode 7 is added with convergent lens 8 above.Integrated optical source 5 and white light-emitting diode light source 7 are all fixed on an aluminium base printed substrate 9.White light-emitting diode light source 7 is 10 centimetres with the distance 10 at aluminium base printed substrate center.
Embodiment 3:
A method for field of illumination colour temperature selective distribution, lamp light source is set to central light source and outer shroud light source, and central light source is positioned at the center of lamp light source, and outer shroud light source is distributed in the surrounding of central light source symmetrically; Lamp light source center is the red light emitting diodes of 1 1W, and its full half-angular breadth is 45 degree, forms light fixture central light source.6 correlated colour temperatures are that the 1W white light-emitting diode that 6500K, full half-angular breadth are 90 degree forms outer shroud light source, are the surrounding that regular hexagon is distributed in central light source symmetrically.The red light emitting diodes of 1 1W and 6 1W white light-emitting diodes are all welded on an aluminium base printed substrate, and 6 white light-emitting diodes and center red light emitting diodes distance are 10 centimetres.Realize the high selectively distribution of the interior middle low and peripheral correlated colour temperature of correlated colour temperature of circular illumination of LED lamp.When such light fixture is vertically used, on horizontal plane below light fixture, the operating current of control centre's ruddiness and outer shroud white light emitting diode, make on horizontal plane illuminance basically identical, because correlated colour temperature presents middle low, the high distribution of peripheral annulus correlated colour temperature, is particularly suitable for foodstuff article display.
Embodiment 4:
A method for field of illumination colour temperature selective distribution, lamp light source is set to central light source and outer shroud light source, and central light source is positioned at the center of lamp light source, and outer shroud light source is distributed in the surrounding of central light source symmetrically; Lamp light source center is the blue LED of 1 1W, and its full half-angular breadth is 45 degree, forms light fixture central light source.6 correlated colour temperatures are that the 1W white light-emitting diode that 3500K, full half-angular breadth are 90 degree forms outer shroud light source, are the surrounding that regular hexagon is distributed in central light source symmetrically.The blue LED of 1 1W and 6 1W white light-emitting diodes are all welded on an aluminium base printed substrate, and 6 white light-emitting diodes and center blue LED distance are 8 centimetres.Realize the low selectively distribution of the interior middle high and peripheral correlated colour temperature of correlated colour temperature of circular illumination of LED lamp.Control the operating current of light fixture central light source and outer shroud light source, can be so that illuminance be basically identical on horizontal plane, but correlated colour temperature is high in the middle of presenting, the low distribution of peripheral annulus correlated colour temperature.This Unique light source irradiates while using from top to bottom, the centre of light fixture hot spot is because correlated colour temperature is high, very outstanding center, be particularly suitable for valuables jewels, jewellery and watch kind article display, and periphery gives spectators with warm sensation because correlated colour temperature is low.
Embodiment 5:
A method for field of illumination colour temperature selective distribution, lamp light source is set to central light source and outer shroud light source, and central light source is positioned at the center of lamp light source, and outer shroud light source is distributed in the surrounding of central light source symmetrically; Lamp light source center is 7 0.06W
direct insertion 6500K white light-emitting diode, its full half-angular breadth is 60 degree, forms light fixture central light source.38 correlated colour temperature is 3500K, the full half-angular breadth 0.06W's that is 60 degree
direct insertion white light-emitting diode forms outer shroud light source, is distributed in symmetrically the surrounding of central light source.The direct insertion white light-emitting diode of 6500K of 7 0.06W and 38 direct insertion white light-emitting diodes of 0.06W3500K are all welded on an epoxy printed substrate, and the distance at 38 direct insertion white light-emitting diodes of 0.06W3500K and epoxy printed substrate center is 4 centimetres.There is high reflectance reverberation bowl in light fixture outer shroud light source outside, further controls outer shroud light beam of light source and correlated colour temperature and selectively distributes.
Embodiment 6:
A method for field of illumination colour temperature selective distribution, lamp light source is set to central light source and outer shroud light source, and central light source is positioned at the center of lamp light source, and outer shroud light source is distributed in the surrounding of central light source symmetrically; Lamp light source center is the integrated optical source 14 that 1 3W, correlated colour temperature are 3000K, is added with convergent lens 15 before integrated optical source, forms the convergent beam that full half-angular breadth is 30 degree.There are light-emitting diode chip for backlight unit 13 and high reflectance reverberation bowl 11 in integrated optical source inside.Integrated optical source 14 is fixed on the lower baseplane of inverted-cone shape aluminium cooling platform 12.It is that 6500K, full half-angular breadth are the 1W white light-emitting diode 16 of 120 degree that inverted-cone shape aluminium cooling platform lateral surface is distributed with 12 correlated colour temperatures symmetrically.Cone platform lateral surface and base plane angle
be 20 degree.In realizing in field of illumination on a large scale like this, ring and outer shroud have the correlated colour temperature of significant difference to distribute.
Claims (1)
1. a method that realizes colour temperature selective distribution in LED lamp field of illumination, it is characterized in that: lamp light source is set to central light source and outer shroud light source, central light source is positioned at the center of lamp light source, and outer shroud light source is distributed in the surrounding of central light source symmetrically; Outer shroud light source inner side is more than or equal to 10 millimeters with the outer lateral extent of central light source; Central light source is that full half-angular breadth is less than or equal to 80 degree light emitting diodes, and outer shroud light source is that full half-angular breadth is less than or equal to 130 degree light emitting diodes; Central light source is the LED source of ruddiness or blue light or white light; Outer shroud light source is that correlated colour temperature and central light source differ white light emitting diode light source more than 1000K; When light fixture central light source is red light source, light fixture outer shroud light source is that correlated colour temperature is more than or equal to 4000K white light source; When light fixture central light source is blue light source, light fixture outer shroud light source is that correlated colour temperature is less than or equal to 6000K white light source; When light fixture central light source correlated colour temperature is less than or equal to 4000K, light fixture outer shroud correlated color temperature of light source is more than or equal to 5000K; When light fixture central light source correlated colour temperature is more than or equal to 5000K, light fixture outer shroud correlated color temperature of light source is less than or equal to 4000K; Light fixture central light source is placed on is inverted heat radiation cone platform bottom outside, and outer shroud light source is placed on is inverted heat radiation cone platform lateral surface, and cone platform lateral surface and base plane angle are more than or equal to 10 degree;
The individual power bracket of light fixture central light source is 0.05-3W, and central light source is that quantity is more than or equal to the individual light sources of 1;
Light fixture outer shroud light source is white light source, and individual power is 0.05-3W, and outer shroud light source is that quantity is more than or equal to the individual light sources of 4;
Light fixture central light source and outer shroud light source all have high reflectance reverberation bowl.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410006344.3A CN103712110B (en) | 2012-03-15 | 2012-03-15 | Method for selectively distributing color temperature in illuminated area of LED lamp |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410006344.3A CN103712110B (en) | 2012-03-15 | 2012-03-15 | Method for selectively distributing color temperature in illuminated area of LED lamp |
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| CN201210068184.6A Division CN102620169B (en) | 2012-03-15 | 2012-03-15 | Method for implementing selective distribution of color temperatures in illumination area |
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| CN103712110A true CN103712110A (en) | 2014-04-09 |
| CN103712110B CN103712110B (en) | 2015-06-17 |
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| CN102032452A (en) * | 2009-09-30 | 2011-04-27 | 成都鼎明光电科技有限公司 | LED (Light Emitting Diode) light source module with spectral reconstitution and lamp |
| EP2408265A2 (en) * | 2010-07-13 | 2012-01-18 | Foxsemicon Integrated Technology, Inc. | Vehicle headlamp system |
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| CN201069057Y (en) * | 2007-02-16 | 2008-06-04 | 厦门通士达照明有限公司 | High light efficiency high coloration LED lamp |
| CN201326923Y (en) * | 2008-11-20 | 2009-10-14 | 武汉盟信科技有限责任公司 | Multifunctional LED illuminator |
| JP2010161021A (en) * | 2009-01-09 | 2010-07-22 | Panasonic Electric Works Co Ltd | Lighting system |
| JP2010186725A (en) * | 2009-01-15 | 2010-08-26 | Mitsubishi Electric Corp | Illumination device |
| CN201487612U (en) * | 2009-08-18 | 2010-05-26 | 深圳市众明半导体照明有限公司 | Warm white LED light source with high-brightness and high color rendering index |
| CN102032452A (en) * | 2009-09-30 | 2011-04-27 | 成都鼎明光电科技有限公司 | LED (Light Emitting Diode) light source module with spectral reconstitution and lamp |
| CN201628103U (en) * | 2010-01-26 | 2010-11-10 | 文国军 | Light mixed LED module |
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| CN103712110B (en) | 2015-06-17 |
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