CN103712109B - Method being used for selectively distributing color temperature in illuminated area and being suitable for food item display - Google Patents
Method being used for selectively distributing color temperature in illuminated area and being suitable for food item display Download PDFInfo
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- CN103712109B CN103712109B CN201410006241.7A CN201410006241A CN103712109B CN 103712109 B CN103712109 B CN 103712109B CN 201410006241 A CN201410006241 A CN 201410006241A CN 103712109 B CN103712109 B CN 103712109B
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Abstract
The invention discloses a method being used for selectively distributing color temperature in an illuminated area and being suitable for food item display. A central light source is arranged in the center of a lamp light source, and outer ring light sources are evenly and symmetrically distributed around the central light source. A red 1W light-emitting diode is arranged in the center of the lamp light source, the full-half angle width of the light-emitting diode is 45 degrees, and the central light source of a lamp is formed. Six white 1W light-emitting diodes with the related color temperature of 6500K and the full-half angle width of 90 degrees form the outer ring light sources and are evenly and symmetrically distributed around the central light source in a regular hexagon shape. The red 1W light-emitting diode and the six white 1W light-emitting diodes are respectively welded to an aluminum-base printed circuit board, and the distance between the six white light-emitting diodes and the central red light-emitting diode is 10cm. The multi-chroma and high-directionality characteristics of the LED light sources are fully utilized, and the related color temperature in the circular or quasi-circular illuminated area of the LED lamp can be selectively distributed.
Description
The application is the divisional 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 interior exterior portion lamp, display backlight source, directly target replaces incandescent lamp and fluorescent lamp at present, becomes forth generation lighting source.Semiconductor illuminating light source, compared with conventional light source, has resources conservation and eco-friendly feature, is subject to the attention of multiple country of the world, research institution and enterprise.The countries such as Japan, the U.S., European Union, Korea S release one after another National Semiconductor illumination plan in recent years.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 to control the market by arranging patent barrier and formulating professional standard.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, basic requirement is existed to the optical parameter such as illumination, colour temperature and development index index.Under the prerequisite that some occasion meets the demands at colour rendering index and colour temperature, require that illumination changes within the specific limits.Some application requirements is special, and under wishing the prerequisite met the demands at colour rendering index and illumination, colour temperature changes in certain limit.Adopting semiconductor illuminating light source, realizing these requirements relative to conventional light source than being easier to.Patent: the light-mixed type package structure for LED (application number 201020243231.2) of brightness-adjusting and subregion point bright light source, the light-mixed type package structure for LED of a kind of brightness-adjusting and subregion point bright light source is proposed, utilize multiple different-colour LED light source and change the method for drive current combination, form brightness and the controlled lighting source of colour temperature.Patent: a kind of new packaging method of LED bright dipping color controllable and device (application number 201110050107.3), a kind of new packaging method and device of LED bright dipping color controllable are proposed, the metal material that a kind of area is comparatively large and heat conductivility is good divides heat sink area by layout points glue housing, then die bond, bonding wire and some glue, thus the zones of different achieved on same light source sends the object of different colours, light source changes colour can also be controlled by circuit simultaneously.Two patents are all by controlling different LED combination of light sources and drive current above, realize color, colour temperature and brightness change.Environment for use of the present invention is more special, require that in the field of illumination of light source, correlated colour temperature selectively distributes, both in different field of illumination, had controlled different correlated colour temperatures, and fully demonstrated the glamour that LED light source is different from conventional light source, meet 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 does like this reduces correlated colour temperature and improves light efficiency, red light emitting diodes core and white light emitting diode core are integrally used, red light emitting diodes core is evenly distributed among white light emitting diode core, wish the hot spot obtaining correlated colour temperature uniformity, the normal equal tabula rasa of transmission that adopts realizes good light mixing effect.
Summary of the invention
The object of the present invention is to provide the method for colour temperature selective distribution in a kind of field of illumination utilizing the applicable foodstuff article display of the feature of LED light source polychrome degree and high directivity.
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, 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; Inside outer shroud light source, outer lateral extent is more than or equal to 10 millimeters with central light source; Central light source is that full half-angular breadth is less than or equal to 80 degree of light emitting diodes, and outer shroud light source is that full half-angular breadth is less than or equal to 130 degree of light emitting diodes; Central light source is the LED source of ruddiness or blue light or white light; Outer shroud light source is correlated colour temperature differs more than 1000K white light emitting diode light source with central light source; 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 outside heat radiation cone mesa base, 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 the individual light sources that quantity is more than or equal to 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 the individual light sources that quantity is more than or equal to 4.
Light fixture center individual light sources is welded on one piece of aluminium base or normal printed wiring board, and outer shroud light source individuality is welded on one piece of aluminium base or normal printed wiring board; Center and outer shroud light source can be the aluminium base or normal printed wiring board 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, control peripheral beam distribution further.
The present invention makes full use of the feature of LED light source polychrome degree and high directivity, realize correlated colour temperature in the circle of LED or similar round field of illumination selectively to distribute, have in inner ring field of illumination different from outer shroud and controlled be greater than the 500K related colour temperature difference, 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.
Detailed description of the invention
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, 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, full half-angular breadth is the 0.06W's of 60 degree
direct insertion white light-emitting diode 2 forms outer shroud light source, is distributed in the surrounding of central light source symmetrically.Direct insertion red light emitting diodes 1 and 38 direct insertion white light-emitting diodes 2 of 0.06W of 7 0.06W are all welded on one piece of 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 center.
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, 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; The integrated optical source 5 that lamp light source center is 1 5W, correlated colour temperature is 3000K, is added with convergent lens 6, forms the convergent beam that full half-angular breadth is 20 degree before integrated optical source.The 1W white light-emitting diode 7 that outer shroud light source is 8 correlated colour temperatures is 6000K, full half-angular breadth is 80 degree, be distributed in the surrounding of center integrated optical source 5 symmetrically in octagon, 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 one piece of 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, 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.The 1W white light-emitting diode that 6 correlated colour temperature is 6500K, full half-angular breadth is 90 degree forms outer shroud light source, is distributed in the surrounding of central light source in regular hexagon symmetrically.The red light emitting diodes of 1 1W and 6 1W white light-emitting diodes are all welded on one piece of aluminium base printed substrate, and 6 white light-emitting diodes and center red light emitting diodes distance are 10 centimetres.Realize the selectively distribution that the low and peripheral correlated colour temperature of the interior middle correlated colour temperature of circular illumination of LED is high.When such light fixture vertically uses, on horizontal plane below light fixture, the operating current of control centre's ruddiness and outer shroud white light emitting diode, make illuminance on horizontal plane basically identical, because correlated colour temperature presents middle low, the distribution that peripheral annulus correlated colour temperature is high, 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, 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.The 1W white light-emitting diode that 6 correlated colour temperature is 3500K, full half-angular breadth is 90 degree forms outer shroud light source, is distributed in the surrounding of central light source in regular hexagon symmetrically.The blue LED of 1 1W and 6 1W white light-emitting diodes are all welded on one piece of aluminium base printed substrate, and 6 white light-emitting diodes and centre blue light emitting diode distance are 8 centimetres.Realize the selectively distribution that the high and peripheral correlated colour temperature of the interior middle correlated colour temperature of circular illumination of LED is low.Control the operating current of light fixture central light source and outer shroud light source, illuminance on horizontal plane can be made basically identical, but correlated colour temperature presents middle high, the distribution that peripheral annulus correlated colour temperature is low.When this Unique light source irradiates use from top to bottom, the centre of light fixture hot spot due to correlated colour temperature high, very outstanding center, be particularly suitable for valuables jewels, jewellery and watch kind article display, and periphery gives spectators with the sensation of warmth 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, 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, full half-angular breadth is the 0.06W's of 60 degree
direct insertion white light-emitting diode forms outer shroud light source, is distributed in the surrounding of central light source symmetrically.The direct insertion white light-emitting diode of 6500K and 38 direct insertion white light-emitting diodes of 0.06W3500K of 7 0.06W are all welded on one piece of 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.Have high reflectance reverberation bowl outside light fixture outer shroud light source, control outer shroud light beam of light source and correlated colour temperature selectively distribute further.
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, 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; The integrated optical source 14 that lamp light source center is 1 3W, correlated colour temperature is 3000K, is added with convergent lens 15, forms the convergent beam that full half-angular breadth is 30 degree before integrated optical source.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.Inverted-cone shape aluminium cooling platform lateral surface is distributed with the 1W white light-emitting diode 16 that 12 correlated colour temperatures are 6500K, full half-angular breadth is 120 degree symmetrically.Cone platform lateral surface and base plane angle
it is 20 degree.Inner ring is realized like this in field of illumination and outer shroud has the correlated colour temperature of significant difference to distribute on a large scale.
Claims (1)
1. the method for colour temperature selective distribution in the field of illumination of an applicable foodstuff article display, 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; 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; The 1W white light-emitting diode that 6 colour temperatures are 6500K, full half-angular breadth is 90 degree forms outer shroud light source, is distributed in the surrounding of central light source in regular hexagon symmetrically; The red light emitting diodes of 1 1W and 6 1W white light-emitting diodes are all welded on one piece of aluminium base printed substrate, and 6 white light-emitting diodes and center red light emitting diodes distance are 10 centimetres.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410006241.7A CN103712109B (en) | 2012-03-15 | 2012-03-15 | Method being used for selectively distributing color temperature in illuminated area and being suitable for food item display |
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| CN201410006241.7A CN103712109B (en) | 2012-03-15 | 2012-03-15 | Method being used for selectively distributing color temperature in illuminated area and being suitable for food item display |
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| Application Number | Title | Priority Date | Filing Date |
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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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| CN103712109A CN103712109A (en) | 2014-04-09 |
| CN103712109B true CN103712109B (en) | 2015-06-17 |
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| US7507012B2 (en) * | 2007-05-16 | 2009-03-24 | Rohm And Haas Denmark Finance A/S | LCD displays with light redirection |
| CN101451656A (en) * | 2007-11-28 | 2009-06-10 | 谢其华 | Luminous diode lighting device |
| CN101644416A (en) * | 2009-06-11 | 2010-02-10 | 江苏名家汇电器有限公司 | Method for improving lightening efficiency of LED light and light fitting thereof |
| JP2011216868A (en) * | 2010-03-16 | 2011-10-27 | Toshiba Lighting & Technology Corp | Light emitting device, and illumination apparatus |
| US20120044676A1 (en) * | 2010-08-19 | 2012-02-23 | Unity Opto Technology Co., Ltd. | Structure of light-emitting diode (LED) lamp |
| CN201884984U (en) * | 2010-10-09 | 2011-06-29 | 游振贤 | LED (light-emitting diode) light source structure |
| CN102042523A (en) * | 2010-10-29 | 2011-05-04 | 大连工业大学 | LED (Light-Emitting Diode) light source and working method thereof |
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Application publication date: 20140409 Assignee: HAIDIKE (NANTONG) PHOTOELECTRIC SCIENCE & TECHNOLOGY CO., LTD. Assignor: Nantong University Contract record no.: 2016320000094 Denomination of invention: Method being used for selectively distributing color temperature in illuminated area and being suitable for food item display Granted publication date: 20150617 License type: Exclusive License Record date: 20160304 |
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