CN102032452A - LED (Light Emitting Diode) light source module with spectral reconstitution and lamp - Google Patents
LED (Light Emitting Diode) light source module with spectral reconstitution and lamp Download PDFInfo
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- CN102032452A CN102032452A CN2009101678247A CN200910167824A CN102032452A CN 102032452 A CN102032452 A CN 102032452A CN 2009101678247 A CN2009101678247 A CN 2009101678247A CN 200910167824 A CN200910167824 A CN 200910167824A CN 102032452 A CN102032452 A CN 102032452A
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Abstract
The invention belongs to an LED (Light Emitting Diode) light source, a light source module and a lamp, in particular relates to an LED light source module with spectral reconstitution and an LED lamp formed by the module. LEDs with pure white light and LEDs with coloured light are arranged to form a regular array shape, and light spots emitted by the LEDs with pure white light and the LEDs with colored light are overlapped in a light sector under the action of a group of special light distribution lenses, thereby realizing the lighting spectral reconstitution of the LED light source module and the lamp. In the scheme, the high lighting effect and the high light flux of the LEDs with pure white light, the color repressive ability of various colored lights and the rain and fog penetrating ability of yellowish orange light are simultaneously utilized, therefore, the lighting effect of lamps required indoors and outdoors can be realized. The lamp produced by using the scheme has the comprehensive advantages of high comprehensive light effect, high light output, favorable color expressive ability, high ability for penetrating through rain and fog, energy saving, environment protection, low cost and long service life. The invention is widely used for indoor and outdoor LED light source modules and LED lamps with color regulation function.
Description
Technical field
Patent of the present invention belongs to led light source, light source module and light fixture, and patent is particularly related to the led light source module of spectrum reorganization and the LED light fixture that this module constitutes.The white light source of module and light fixture is by constituting from light LED and coloured light LED, via one group of lens, the hot spot that white light and coloured light LED send is overlapping in the surround, the coloured light peak value spectrum that in the continuous wide band spectrum of white light, superposeed, thus realize the distinctive illuminating effect of light fixture.
Background technology
The LED illumination is a kind of advanced technology, and the energy-conserving and environment-protective lighting engineering that has a extensive future has numerous advantages, and conventional light source and lighting thereof are subjected to the challenge of LED and lighting thereof.But LED light fixture replacement conventional light source light fixture is still needed and is experienced a comparatively very long process, and therebetween, the LED light fixture also needs the weak point of positive solution self performance except needs solve on the high side and market cognitive question.
Be to guarantee illuminating effect, remove and require light fixture to export enough luminous fluxes, also require it to have appropriate color characteristics, promptly meet instructions for use color table (correlated colour temperature, CCT), colour rendering (colour rendering index, CRI) and other color characteristics.Human used several traditional lighting light sources have different color characteristics.Incandescent tengsten lamp color table is not good, but colour rendering is good; The high-pressure sodium lamp color table still can, but colour rendering deficiency; The color table and the colour rendering of high-pressure mercury lamp (HPS) are all bad, the about 1980K of CCT, and CRI about 23.Ironically, HPS has but become extensive outdoor lights, the especially road lighting of adopting in the whole world now and main force's light source of plaza lighting, obviously selects among the HPS and has reason in addition.The one, the light efficiency height of HPS lamp can far above other conventional light source, can be the surround enough luminous fluxes are provided up to 100～125lm/W; The 2nd, in HPS spectrum, two very close sodium atom peak value spectral lines are arranged at 589.0nm and 589.6nm, the gold-tinted energy is higher, although color table is yellow partially, colour rendering is poor, have outdoor lighting required, wear the color characteristics of misty rain illumination capability more by force.
At present, pure white light (Pure White, being also referred to as cold white light Cool White) light efficiency of commodity LED is up to 100～130lm/W, because drive circuit efficient and Luminaire efficiency are higher, the comprehensive light efficiency of pure white light LEDs light fixture has surpassed all conventional lamp that comprise the HPS light fixture.The CCT of the pure white light LEDs of high light efficiency is generally greater than 6000K, and CRI is about 70, can not satisfy the requirement of all application.Relatively emphasize warm tones such as the dwelling house room lighting, it is blue partially that pure white light LEDs color table but seems; And for example emphasizing to reduce in the application of illuminated object color, it is not enough that pure white light LEDs colour rendering is still felt; In the outdoor lights that begins at present to widely popularize is used, though the color table of pure white light LEDs and colour rendering outclass HPS, pure white light LED road lamp to wear the misty rain illumination capability relatively poor.Say on the principle that pass the optical wavelength difference of misty rain, the optical energy attenuation degree is different, gold-tinted is less to the decay of red spectral band.Road lighting has what is called " inductivity " requirement, and promptly in the misty rain weather environment, the illumination light that lamppost sends above still can provide clearly road vision information to the driver after decay.
It has been generally acknowledged that available solution is to adopt nature white light (Nature White) or warm white (Warm White) LED, their colour temperature more approaches warm tones than pure white light LEDs, and colour rendering is better, though wear the misty rain ability not as good as HPS, is better than pure white light LEDs.The company of some supply LED street lamp has also listed natural white light or warm white street lamp product, but few practical.Problem goes out at the light efficiency of natural white light and warm white LED lower, if with the 100lm/W light efficiency of pure white light LEDs as the reference index, the corresponding index of then natural white light and warm white LED is 75lm/W and 60lm/W.Such luminous efficiency of source causes the comprehensive light efficiency of light fixture not high, does not just have clear superiority as if comparing with the HPS light fixture.For exporting enough luminous fluxes, must increase LED quantity, make power increase, energy-saving effect descends, and cost also further raises, and is difficult to practicality and popularization naturally.
On physical principle, the color table of white light LEDs, colour rendering and other color characteristics all with its spectral correlation.White light LEDs system commonly used at present is not a monochromatic light by blue-light LED chip and the luminous white light that forms of gold-tinted fluorescent material, but mixed light.It has the broadband continuous spectrum, and energy is with Wavelength distribution, and the relative energy intensity of different wave length correspondence is also different.For different white light LEDs, its curve of spectrum shape is similar, but the relative energy intensity distributions may be different.The research institute of light source module and lighting is the user of white light and coloured light LED, and the led light source device that their outsourcing is supporting but can't change the spectrum of light source device.Not enough because of the luminous flux output of single LED, always adopt several, tens of even up to a hundred LED in light source module and the light fixture, this provides opportunity for reorganization surround spectrum.Change the fraction LED in white LED light source module and the light fixture into coloured light LED, be equivalent to certain or certain the several wavelength location in the continuous spectrum of white light, the peak value spectrum of stack coloured light, thus change the curve of spectrum of white light.On technology was implemented, if do not add optical element in addition, the hot spot of every LED in the light source module may not be superimposed together, and what LED are the illumination section surround in other words, have respectively, just had what little illumination hot spots.In the white LED light source module of adding coloured light and the surround of light fixture, the white-light illuminating hot spot that spectrum remains unchanged will appear, and coloured colorama lighting hot spot, in the lamp lighting district, do not reach spectrum reorganization purpose, the surround irregular colour is even, and illuminating effect is not good.
The present invention has given one's full attention to above-mentioned technical background, therefore creatively proposes a kind of white light source module and light fixture of spectrum reorganization of novelty.Light source is made of coloured light LED such as pure white light LEDs and red, orange, yellow, green, indigo plants, they are arranged in the array shape of rule, via one group of special lens, the hot spot that white light LEDs and coloured light LED are sent is overlapping in the surround, thereby realizes the illumination spectrum reorganization of led light source module and light fixture.Scheme has been utilized the high light efficiency Gao Guangtong of pure white light LEDs simultaneously, the color expressive ability of various coloured light, and therefore the misty rain ability of wearing of yellow orange coloured light can realize the illuminating effect that the indoor/outdoor light fixture is required.
Summary of the invention
With other led light source module is significantly different with lighting at present, the creative and novel features of technical scheme design of patent of the present invention, and be actually used in light source module and the lighting product.
According to illumination intensity (being the surround average illumination) and surround area, calculate the luminous flux of determining that the LED light fixture need be exported; According to the color characteristics of illuminating effect, comprise CCT, CRI and other requirement again, select to adopt one or more coloured light LED such as red, orange, yellow, green, indigo plant white light source; Determine the number of elements of white light LEDs and coloured light LED.The cause output light flux of coloured light LED at present is generally less than white light LEDs, need check the requirement that can calculating satisfy output light flux.
White light and coloured light LED are installed in printed board according to array way, for example on the printed circuit board of metallic substrates (MC-PCB).No matter according to which kind of array way, coloured light LED should be arranged in the white light LED array relatively equably, and is in relative middle position.
At the circuit side connector face, coloured light LED can be connected into a driving branch road separately.For cooperating power supply and drive circuit characteristic, reduce to necessary quantity with driving branch road, according to the position relation, white light and coloured light LED need to be connected in the same driving branch road sometimes.
Plane, lamp lighting district is generally the geometry of rule, has the axial symmetry characteristic, for example circle, ellipse, square, rectangle etc.All almost can cover the whole surround of light fixture for the illumination hot spot of realizing every LED, and the illuminance uniformity in the surround is high as far as possible, light-distribution lens often needs to have several different curved surface face shapes, by reflection, total reflection and refraction at the interface, the light beam that LED sends is through behind the light-distribution lens, the angle of emergence changes, and intensity distributions changes, and cross sectional shape also changes.The result makes that beam cross section and the surround geometry of every LED output meet in the array light source, and the beam intensity that array light source is exported projects whole surround more equably.Light-distribution lens can be single, and single lens are aimed at single LED one by one; Light-distribution lens also can link together, and forms the lens module, corresponding every LED in each lens while aligned array in the module.Light-distribution lens and lens module end surface shape can be square, or are rectangle, strip, circle, ellipse, regular hexagon and irregular abnormity.
The LED of this programme indication is led chip or encapsulated LED device.For led chip, above-mentioned light-distribution lens is an optical lens of chip; For the packaged LED device that has an optics, above-mentioned light-distribution lens then is the secondary optical lens of device.
White light, coloured light LED and light-distribution lens LED light source consisting, light source is installed on the printed circuit board (as MC-PCB) by array way, forms the led array light source.Under the situation about having, the led array light source has comprised thermally-conductive interface and the radiator structure of self.Behind external power supply and the drive circuit, the array light source module is luminous, and its hot spot will cover the surround equably, because of the white light and the coloured light LED hot spot of different spectrum overlapping in the surround, thereby realize the illumination spectrum reorganization of light source module.
With the light source module, thermally-conductive interface and radiator structure, other fitting structures, built-in power supply and drive circuit are assembled into lighting by designing requirement.Under the situation about having, power supply and/or drive circuit also may place outside the fitting structure.The hot spot of light fixture covers the surround equably, because of the white light and the coloured light LED hot spot of different spectrum overlapping in the surround, thereby realize the illumination spectrum reorganization of light fixture.
Coloured light LED such as pure white light LEDs and red, orange, yellow, green, indigo plant are arranged in the array shape of rule, via one group of special light-distribution lens, the hot spot that white light LEDs and coloured light LED are sent is overlapping in the surround, thereby realizes the illumination spectrum reorganization of led light source module and light fixture.This programme has utilized pure high light efficiency Gao Guangtong from light LED simultaneously, the color expressive ability of various coloured light, and therefore the misty rain ability of wearing of yellow orange coloured light can realize the illuminating effect that the indoor/outdoor light fixture is required.The light fixture product that this programme is made has the comprehensive light efficiency height of light fixture, and light output is high, and the color expressive ability is good, and it is strong to wear the misty rain ability, energy-conserving and environment-protective, and cost is low, the overall merit that the life-span is long.This programme has purposes widely, has started the led light source module with color adaptation function and the New Times of light fixture.
Patent of the present invention is achieved in that
LED light fixture output light flux as required and white light color characteristics are determined white light LEDs number of elements and coloured light LED kind and number of elements, make it to satisfy simultaneously the requirement of luminous flux and color characteristics.White light LEDs and coloured light LED are arranged in the printed board (as MC-PCB) by array way, and coloured light LED is relatively all even to be arranged in the array between two parties.Coloured light LED or be connected into a driving branch road separately; Or be connected on same driving branch road with white light LEDs.Each light-distribution lens is aimed at corresponding every LED, makes that beam cross section and the surround geometry of every LED output meets in the array light source, and the beam intensity that array light source is exported projects whole surround more equably.After being assembled into light source module and light fixture, the illumination hot spot will cover the surround equably, because of the white light LEDs and the coloured light LED hot spot of different spectrum overlapping in the surround, thereby realized the reorganization of surround spectrum.
Description of drawings
Fig. 1 is a kind of square array white LED light source that a kind of coloured light LED is installed.
Fig. 2 is a kind of circular array white LED light source that a kind of coloured light LED is installed.
Fig. 3 is a kind of strip array white LED light source that two kinds of coloured light LED are installed.
Fig. 4 is that a kind of white light is connected with the circuit that coloured light LED is connected on a driving branch road respectively.
To be a kind of white light mix the circuit that is connected on same driving branch road with coloured light LED to Fig. 5 is connected.
Fig. 6 is a kind of square led array light source that single light-distribution lens is installed.
Fig. 7 is a kind of round LED array light source that regular hexagon light-distribution lens module is installed.
Fig. 8 is a kind of white light and the coloured light LED hot spot overlapping hot spot in the surround.
Fig. 9 is a kind of spectrum of pure white light LEDs.
Figure 10 is a kind of spectrum of red-light LED.
Figure 11 is a kind of pure white light and the red-light LED hot spot stack spectrum in the surround.
Concrete enforcement
Below in conjunction with the description of drawings specific embodiment:
Accompanying drawing 1,2,3 have illustrated three kinds of array white LED light sources with coloured light LED for example, and Fig. 1 represents the square array of LED, and Fig. 2 represents the circular array of LED, and Fig. 3 represents the strip array of LED.Among the figure, 101 is white light LEDs, and 102 is a kind of coloured light LED, and 103 is printed circuit board (as MC-PCB), and 301 is another kind of coloured light LED, and 101,102,301 are installed on 103, and 102 and/or 301 installation site is relatively all even placed in the middle.
The circuit of accompanying drawing 4,5 expression led array light sources connects example.Fig. 4 represents that white light is connected with the circuit that coloured light LED is connected on a driving branch road respectively; Fig. 5 represents that then white light and coloured light LED mix the circuit that is connected on same driving branch road and be connected.
Accompanying drawing 6,7 has illustrated to install the led array light source of light-distribution lens for example, and Fig. 6 installs the square led array light source that single end face is shaped as the rectangle lens, and Fig. 7 installs the round LED array light source that end face is shaped as regular hexagon lens module.Among the figure, the 601st, rectangle simple lens, the 701st, regular hexagon light-distribution lens module.The light beam that LED sends is through behind the light-distribution lens, and the angle of emergence changes, and intensity distributions changes, and cross sectional shape also changes.The result makes that beam cross section and the surround geometry of every LED output meet in the array light source, and the beam intensity that array light source is exported projects whole surround more equably.
Accompanying drawing 8 expression white light LEDs and the coloured light LED hot spot examples overlapping in the surround, the 801st, the white light hot spot of surround, the 802nd, the coloured light LED hot spot of surround.In the almost whole surrounds except that the edge, white light and coloured light LED hot spot are realized overlapping, and the spectrum of overlay region hot spot has been different from the spectrum of white light and coloured light.
Fig. 9 is a kind of spectrum of pure white light LEDs, and Figure 10 is a kind of spectrum of red-light LED, and Figure 11 is a kind of pure white light LEDs and the red-light LED hot spot stack spectrum in the surround, thereby realizes the spectrum reorganization of surround.The total light flux of red-light LED output only is the sub-fraction of the total light flux of pure white light LEDs output, and therefore, reorganization spectrum is lower at the peak value at ruddiness dominant wavelength place.
Claims (10)
1. a led light source is made up of LED and light-distribution lens, and the LED in the light source comprises coloured light LED such as red, orange, yellow, green, the indigo plant of white light LEDs and one or more, and light source has the adjustable function of color characteristics.
2. the described LED of claim 1 is led chip or encapsulated LED device, and for led chip, the described light-distribution lens of claim 1 is an optical lens of chip; For the packaged LED device that has an optics, the described light-distribution lens of claim 1 then is the secondary optical lens of device.
3. the mixing of described white light LEDs of claim 1 and coloured light led light source is arranged in array way, is arranged in printed board, for example on the printed circuit board of metallic substrates (MC-PCB), constitutes the led array light source.No matter adopt which kind of array way, coloured light LED should be arranged in the led array relatively equably, and is in relative middle position.
4. on the described printed circuit board of claim 3, coloured light LED can be connected into a driving branch road separately; Also white light and coloured light LED mixing can be connected in the same driving branch road.
5. at the bright dipping position of described white light LEDs of claim 1～3 and coloured light LED, light-distribution lens is installed all, constitutes the led array light source that light-distribution lens is installed.The light beam that LED sends is through behind the light-distribution lens, and the angle of emergence changes, and intensity distributions changes, and cross sectional shape also changes.The result makes that beam cross section and the surround geometry of every LED output meet in the array light source, and the beam intensity that array light source is exported projects whole surround more equably.
6. the described light-distribution lens of claim 5 can be single, and promptly single lens are aimed at single LED;
7. the described light-distribution lens of claim 5 also can link together, and forms the lens module, corresponding every LED in each lens while aligned array in the module.
8. light-distribution lens and lens module end surface shape can be square, or are rectangle, strip, circle, ellipse, regular hexagon and irregular abnormity.
9. based on the led array light source of the described installation light-distribution lens of claim 5, add the thermally-conductive interface and the radiator structure composition light source module of light source self.Connect external power supply and drive circuit, the light source module is luminous, and its hot spot covers whole surround equably, because of the white light and the coloured light LED hot spot of different spectrum overlapping in the surround, thereby realize the illumination spectrum reorganization of light source module.
10. with the described light source module of claim 9, thermally-conductive interface and radiator structure, other fitting structures, built-in power supply and drive circuit are assembled into lighting by designing requirement.Under the situation about having, power supply and/or drive circuit also may place outside the fitting structure.The hot spot of light fixture covers whole surround equably, because of the white light and the coloured light LED hot spot of different spectrum overlapping in the surround, thereby realize the illumination spectrum reorganization of light fixture.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101678247A CN102032452A (en) | 2009-09-30 | 2009-09-30 | LED (Light Emitting Diode) light source module with spectral reconstitution and lamp |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101678247A CN102032452A (en) | 2009-09-30 | 2009-09-30 | LED (Light Emitting Diode) light source module with spectral reconstitution and lamp |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102569283A (en) * | 2012-02-09 | 2012-07-11 | 重庆邦桥科技有限公司 | Light-emitting diode |
| CN102620169A (en) * | 2012-03-15 | 2012-08-01 | 南通大学 | Method for implementing selective distribution of color temperatures in illumination area |
| CN103712110A (en) * | 2012-03-15 | 2014-04-09 | 南通大学 | Method for selectively distributing color temperature in illuminated area of LED lamp |
| CN110274168A (en) * | 2019-06-18 | 2019-09-24 | 长春希达电子技术有限公司 | A kind of lens module grid illuminator |
| CN112987456A (en) * | 2021-05-10 | 2021-06-18 | 江苏米创医疗科技有限公司 | LED multispectral light source and implementation method thereof |
| CN114207345A (en) * | 2019-07-30 | 2022-03-18 | 昕诺飞控股有限公司 | Color-controllable LED filament and lamp with such filament |
| WO2024012159A1 (en) * | 2022-07-15 | 2024-01-18 | 上海芯龙光电科技股份有限公司 | Matrix-type light distribution outdoor wash lamp |
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2009
- 2009-09-30 CN CN2009101678247A patent/CN102032452A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102569283A (en) * | 2012-02-09 | 2012-07-11 | 重庆邦桥科技有限公司 | Light-emitting diode |
| CN102620169A (en) * | 2012-03-15 | 2012-08-01 | 南通大学 | Method for implementing selective distribution of color temperatures in illumination area |
| CN103712110A (en) * | 2012-03-15 | 2014-04-09 | 南通大学 | Method for selectively distributing color temperature in illuminated area of LED lamp |
| CN103712182A (en) * | 2012-03-15 | 2014-04-09 | 南通大学 | Color temperature selective distribution method utilizing multiple chrominances and high directivity of LED light source |
| CN102620169B (en) * | 2012-03-15 | 2014-04-16 | 南通大学 | Method for implementing selective distribution of color temperatures in illumination area |
| CN103712110B (en) * | 2012-03-15 | 2015-06-17 | 南通大学 | Method for selectively distributing color temperature in illuminated area of LED lamp |
| CN103712182B (en) * | 2012-03-15 | 2015-10-28 | 南通大学 | Utilize the colour temperature selective distribution method of LED light source polychrome degree and high directivity |
| CN110274168A (en) * | 2019-06-18 | 2019-09-24 | 长春希达电子技术有限公司 | A kind of lens module grid illuminator |
| CN114207345A (en) * | 2019-07-30 | 2022-03-18 | 昕诺飞控股有限公司 | Color-controllable LED filament and lamp with such filament |
| CN112987456A (en) * | 2021-05-10 | 2021-06-18 | 江苏米创医疗科技有限公司 | LED multispectral light source and implementation method thereof |
| CN112987456B (en) * | 2021-05-10 | 2021-09-07 | 江苏米创医疗科技有限公司 | Multispectral illumination method applied to minimally invasive surgery LED light source |
| WO2024012159A1 (en) * | 2022-07-15 | 2024-01-18 | 上海芯龙光电科技股份有限公司 | Matrix-type light distribution outdoor wash lamp |
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Application publication date: 20110427 |