CN110067950A - A kind of full-spectrum LED light mixing system - Google Patents
A kind of full-spectrum LED light mixing system Download PDFInfo
- Publication number
- CN110067950A CN110067950A CN201910414798.7A CN201910414798A CN110067950A CN 110067950 A CN110067950 A CN 110067950A CN 201910414798 A CN201910414798 A CN 201910414798A CN 110067950 A CN110067950 A CN 110067950A
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- light
- led
- lamp plate
- light source
- guiding points
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/61—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using light guides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/64—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/68—Details of reflectors forming part of the light source
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Abstract
A kind of full-spectrum LED light mixing system, belongs to LED light source technical field;The problem of the application is in order to improve white LED spectrum poor continuity in the prior art.The application includes LED lamp panel, the side of LED lamp panel is installed by reflector, the other side of LED lamp panel is equipped with diffuser plate, LED lamp panel includes bluish-green lamp plate, feux rouges lamp plate and white light lamp plate, bluish-green lamp plate, feux rouges lamp plate and the reflexive tabula rasa of white light lamp plate are sequentially arranged to diffuser plate direction, it is equipped with the first optical waveguide layer between bluish-green lamp plate and reflector, the second optical waveguide layer is equipped between feux rouges lamp plate and bluish-green lamp plate, third optical waveguide layer is equipped between feux rouges lamp plate and white light lamp plate.The full-spectrum LED illumination system spectrum of the application is close with spectrum of sunlight, and light mixing effect is good, and spectrum continuity is strong, and colour rendering is high.
Description
Technical field
A kind of light mixing system belongs to LED light source technical field, and in particular to a kind of full-spectrum LED light mixing system.
Background technique
LED is as a kind of novel cold light source, with lamp source elemental area is smaller, shock resistance is good, light efficiency is high, uses the longevity
Life is long, wavelength can with covering visible light part, monochromatic performance is good, full width at half maximum is narrow, shine as incoherent light, can preferably control
The advantages that luminescent spectrum processed forms.The yellow fluorescent powder of mature blue light excitation at present generates white light technology, so that white light LEDs are in light
There is larger improvement in terms of effect, colour rendering, but compared to still there is a big difference for sunlight.Therefore it is based on LED synthetic spectrum
Simulation natural light has been widely studied, but there are still urgently to be resolved in terms of how improving variety classes LED light mixing efficiency
Problem.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of full-spectrum LED light mixing systems, realize full spectrum and efficiently shine
Bright, suitable for different occasion health, the lighting environment demand of environmental protection, application range is wider.
Reflector, LED are installed the side of a kind of full-spectrum LED light mixing system of the invention, including LED lamp panel, LED lamp panel
The other side of lamp plate is equipped with diffuser plate, and the LED lamp panel includes bluish-green lamp plate, feux rouges lamp plate and white light lamp plate, described bluish-green
Lamp plate, feux rouges lamp plate and the reflexive tabula rasa of white light lamp plate are sequentially arranged to diffuser plate direction, are equipped between bluish-green lamp plate and reflector
First optical waveguide layer is equipped with the second optical waveguide layer between feux rouges lamp plate and bluish-green lamp plate, the is equipped between feux rouges lamp plate and white light lamp plate
Three optical waveguide layers.
Preferably, bluish-green LED light source array is installed on the bluish-green lamp plate, red-light LED light is installed on feux rouges lamp plate
Source array is equipped with white LED light source array on white light, and bluish-green LED light source is bluish-green LED chip, and red-light LED light source is red
Light LED chip, white LED light source are White-light LED chip.
Preferably, it is 505-515nm blue green light LED chip, red-light LED light source that the blue green light LED light source, which is dominant wavelength,
With the blue-ray LED excitation-emission peak value of 460-480nm 680-750 nitride red fluorescent powder generate, white LED light source with
Nitride yellow fluorescent powder of the blue-ray LED excitation-emission peak value of 450-470nm in 580-610 generates.
Preferably, the power phase of the single white LED light source, single bluish-green LED light source and single red-light LED light source
Together, the white LED light source quantity on white light lamp plate and the bluish-green number of LED light sources on bluish-green lamp plate and the feux rouges on feux rouges lamp plate
The quantitative proportion of LED light source is (3-10): 1:1.
Preferably, first light guiding points of the level of the first optical waveguide layer light source side equipped with uniform array arrangement, second
The level of optical waveguide layer light source side is equipped with the second light guiding points of uniform array arrangement, and the level of third optical waveguide layer light source side is equipped with
The third light guiding points of uniform array arrangement, the first light guiding points, the second light guiding points and third light guiding points arranged for interval.
Light guiding points in first optical waveguide layer, the second optical waveguide layer and third optical waveguide layer are that laser dotting is formed by concave point,
Each site size is identical, and shape is identical, as light constantly transmits in light guide plate, luminous flux due to light from front project and
It ceaselessly reduces, in the case that in site, size is remained unchanged, in order to guarantee the uniform-illumination of light-emitting surface, with from light source distance
Increase, site spacing gradually becomes smaller, and becomes closeer.
Preferably, the quantity that the quantity of third light guiding points is greater than the second light guiding points is greater than the quantity of the first light guiding points.
Preferably, first optical waveguide layer is made of several first unit light guiding points, and the second optical waveguide layer is single by several second
First light guiding points are constituted, and third to photosphere is made of several third unit light guiding points.
Preferably, the quantity of the first unit light guiding points is more than or equal to 10000, the quantity of first unit light guiding points, the
Two unit light guiding points are identical with the quantity of third unit light guiding points.
Compared with prior art, the present invention having the following beneficial effects:
1) the application is equipped with reflector using bluish-green LED light source, red-light LED light source and white LED light source, multilayer optical waveguide layer
The light mixing system constituted with diffuser plate, the light that assorted LED light source is issued respectively enter corresponding light guide plate, by sufficiently anti-
Mixing is penetrated, mixing light is shone by the diffuser plate, forms full spectral illumination, realizes the efficient mixed of variety classes LED light source
It closes, spectrum continuity is strong, and colour rendering is high;
2) the full light spectrum of the LED of the application is close with spectrum of sunlight, provides a kind of comfortable lighting environment for human eye;
3) the light mixing system structure of the application is simple, builds and using not special environmental requirement, is suitable for different fields
It closes, meets the demand of health, environmentally friendly lighting environment, application range is wider.
Detailed description of the invention
Fig. 1 is the full-spectrum LED light mixing system overall structure diagram of the embodiment of the present invention;
Fig. 2 is the structural schematic diagram of first optical waveguide layer of the present embodiment, the second optical waveguide layer and third optical waveguide layer;
Fig. 3 is the unit light guiding points front schematic view of each layer light guide plate of the present embodiment, and Fig. 3 a is that the first guide-lighting layer unit is led
Dot structure schematic diagram, Fig. 3 b are the second guide-lighting layer unit light guiding points structural schematic diagram, and Fig. 3 c is that third leaded light layer unit is guide-lighting
Point structure schematic diagram;
Fig. 4 is the structural schematic diagram of the present embodiment LED lamp panel;
Fig. 5 is the present embodiment white LED spectrum figure;
Fig. 6 is the present embodiment blue green light LED spectrogram and nitride red fluorescent powder spectrogram;
Fig. 7 is the present embodiment light mixing fit-spectra figure;
Fig. 8 is the present embodiment light mixing spectrum and spectrum of sunlight comparison diagram;
In figure, 1-LED lamp plate, 11- blue green light LED light source, 12- red-light LED light source, 13- white LED light source, 21- first
Optical waveguide layer, the first optical waveguide layer of 22-, 23- third optical waveguide layer, 24- first unit light guiding points, 25- second unit light guiding points, 26-
Three unit light guiding points, 3- reflector, 4- diffuser plate.
Specific embodiment
In order to which the application is described in detail, embodiments herein is described in detail with reference to the accompanying drawing.
A kind of full-spectrum LED light mixing system of the present embodiment, as shown in Figure 1, bluish-green including being sequentially arranged from the bottom to top
Lamp plate, the first optical waveguide layer 21, blue green light lamp plate, the second optical waveguide layer 22, feux rouges lamp plate, third optical waveguide layer 23, white light lamp plate and expansion
Fall apart 4, blue green light lamp plate, feux rouges lamp plate and white light lamp plate are side-light type structure, blue green light lamp plate, feux rouges lamp plate and white light
Plate constitutes LED lamp panel 1, and the reflected light of blue green light LED light source 11 is exported by 21 front of the first optical waveguide layer, red-light LED light source 12
Reflected light is exported by 22 front of the second optical waveguide layer, and the reflected light of white LED light source 13 is exported by 23 front of third optical waveguide layer;This reality
The main material for applying the reflector 3 of example is PET material, and the material of diffuser plate 4 is makrolon material, with a thickness of 1.2mm.
As shown in figure 4, bluish-green lamp panel structure is to install several blue green light LED array of source, feux rouges on aluminum base circuit board
Lamp panel structure is that several 12 arrays of red-light LED light source are installed on aluminum base circuit board, and white light modulated structure is on aluminum base circuit board
Several 13 arrays of white LED light source are installed.
According to Jim Glassman color mixing law, if the light of the first color utilizes light quantity there are two types of the light of color
For R1, the three primary colors of G1, B1, which match, to be come, and it is R2, the three primary colors of G2, B21 that the light of second of color, which can use light quantity,
With coming out, then both color of light, which are added secondary colour, to be RGB with three primary colors quantity to indicate, wherein R=R1+R2, G=G1
+ G2, B=B1+B2, R1, G1, B1 and R2, G2, B2 are respectively the tristimulus values of the first color of light and second of color of light, face
Form and aspect add principle to be applicable not only to two colors additions, and the available multiple color that expands to is added.
As shown in figure 5, there are two peak wavelengths for the tool of white LED light source 13, wherein peak wavelength is in 600nm or so, secondary peak
Wavelength has a trough in 450nm or so at 500nm, and the entire curve of spectrum covers the range of human eye visible light, and selected
Blue green light LED light source and red-light LED light source present position be just the lower place of white LED spectrum energy, well more
Integral energy has been mended in the missing on both sides.In view of the above analysis, the present invention using white LED light source and red-light LED light source 12 and
The combination that blue green light LED light source 11 combines realizes full spectrum to simulate spectrum of sunlight, such as Fig. 8 light mixing spectrum and daylight light
It composes shown in comparison diagram.
Since the size of wavelength determines the photochromic difference of light source, for light due to photochromic difference, transmittance is different, and feux rouges is saturating
It penetrates than being less than blue light transmittance, therefore regard blue light LED light source 11 as first layer light source, red-light LED light source 12 is used as the second layer
Light source, white LED light source 13 are third layer light source as main light source.
The dominant wavelength of the blue green light LED light source 11 of the present embodiment is 505-515nm, the function of single blue green light LED light source 11
Rate is 0.5W, and rated operational current is 150mA, rated operational voltage are as follows: 2.0-2.6V, light source map is as shown in Figure 6;
Red-light LED light source 12 is with the blue-ray LED excitation-emission peak value of 460-480nm in the nitride red glimmering of 680-750
Light powder generates, and the power of single red-light LED light source is 0.5W, and rated operational current is 150mA, rated operational voltage are as follows:
2.0-2.6V, nitride red fluorescent powder map are as shown in Figure 6;
Nitride yellow of the white LED light source 13 with the blue-ray LED excitation-emission peak value of 450-470nm in 580-610 is glimmering
Light powder generates, colour temperature 4000K-5000K, shows and refers to that characteristic CRI is greater than 90, R9 and is greater than 80, single white LED light source power is
0.5W, and rated operational current 150mA, operating voltage: 2.9-3.4V, light source map are as shown in Figure 5.
The function of single white LED light source 13 in the present embodiment, single blue green light LED light source and single red-light LED light source 12
Rate is identical, 13 quantity of white LED light source on white light lamp plate and the bluish-green number of LED light sources and feux rouges lamp plate on blue green light lamp plate
On red-light LED light source 12 quantitative proportion be (3-10): 1:1.
Since typical natural light colour temperature is usually in 3000K-6500K, so the present invention selects colour temperature for 4000K-5000K
White LED light source as main light source, select blue green light LED light source and red-light LED light source using the ratio of 1:1 as fill-in light
Source, three kinds of number of LED light sources can require to be adjusted according to actual illumination environment illumination intensity in practical applications;It can pass through
The luminous intensity for flowing through electric current two kinds of light sources of change of blue green light LED light source and red-light LED light source different branch is adjusted, and then is adjusted
The mixed proportion of both whole light sources to carry out light mixing with white light LEDs, realizes the natural optical analog to different-colour.
As shown in Figure 2, every layer of optical waveguide layer thickness d1=2mm is spaced d between every layer2According to the package dimension of selected lamp bead
Fixed, the level of 21 light source side of the first optical waveguide layer is equipped with the first light guiding points of matrix form arrangement, 22 light source of the second optical waveguide layer
The level of side is equipped with the second light guiding points of matrix form arrangement, and the level of 23 light source side of third optical waveguide layer is arranged equipped with matrix form
Third light guiding points, the first light guiding points, the second light guiding points and third light guiding points do not block mutually, and the light of point light source is become area source
It reflects away and is mixed with other color spectrums, form required spectrum.
First optical waveguide layer 21, the second optical waveguide layer 22 and the light guiding points on third optical waveguide layer 23 are laser dotting institute shape
At concave point, each site size is identical, and shape is identical, and principle is 3 D grating, three-dimensional diffusing reflection.As light is in light guide plate
In constantly transmit, luminous flux due to light from front project and ceaselessly reduce, in the case that in site, size is remained unchanged, be
Guarantee the uniform-illumination of light-emitting surface, with the increase from light source distance, site spacing is gradually become smaller, become closeer.
In the present embodiment, since light gradually mixes from the bottom to top, the quantity of the second corresponding light guiding points is greater than
The quantity of first light guiding points, the quantity of third light guiding points are greater than the quantity of the second light guiding points.
First optical waveguide layer is made of several first unit light guiding points, and the second optical waveguide layer is by several second unit light guiding points
It constitutes, third to photosphere is made of several third unit light guiding points.The quantity of first unit light guiding points is more than or equal to 10000, the
The quantity of one unit light guiding points, second unit light guiding points are identical with the quantity of third unit light guiding points.
The guide-lighting plate suqare of three layers of the present embodiment is identical, and the first guide-lighting layer unit 21 structures of light guiding points are as shown in Figure 3a, figure
The distance between middle light guiding points are gradually reduced along the direction far from light source, i.e., the density of light guiding points gradually increases along far from light source direction
Greatly, the unit light guiding points longitudinal direction array arrangement of numerous quantity, similarly, second guide-lighting 22 guide-lighting point structure such as Fig. 3 b institute of layer unit
Show, the guide-lighting point structure of third leaded light layer unit 23 is as shown in Figure 3c.
The foregoing description of the embodiment of the present invention provides for the purpose of illustration and explanation.They are not exhaustion
Property, it is also not meant to limit the invention to these contents accurately described, it, can also be there are many changing under the guide of above-mentioned introduction
Dynamic and variation.These embodiments are selected and describe merely to best illustration the principle of the present invention and their reality are answered
With so that those skilled in the art can preferably in various embodiments and use is suitable for expected specific use
Various changes apply the present invention.It is understood, therefore, that this invention is intended to be covered within the scope of following claim
It is all to change and be equal.
Claims (8)
1. a kind of full-spectrum LED light mixing system, including LED lamp panel, reflector is installed in the side of LED lamp panel, LED lamp panel it is another
Side is equipped with diffuser plate, it is characterised in that: the LED lamp panel includes bluish-green lamp plate, feux rouges lamp plate and white light lamp plate, described bluish-green
Lamp plate, feux rouges lamp plate and the reflexive tabula rasa of white light lamp plate are sequentially arranged to diffuser plate direction, are equipped between bluish-green lamp plate and reflector
First optical waveguide layer is equipped with the second optical waveguide layer between feux rouges lamp plate and bluish-green lamp plate, the is equipped between feux rouges lamp plate and white light lamp plate
Three optical waveguide layers.
2. a kind of full-spectrum LED light mixing system according to claim 1, it is characterised in that: be equipped on the bluish-green lamp plate
Bluish-green LED light source array is equipped with red-light LED array of source on feux rouges lamp plate, white LED light source battle array is equipped on white light
Column.
3. a kind of full-spectrum LED light mixing system according to claim 2, it is characterised in that: based on the blue green light LED light source
Wavelength is 505-515nm blue green light LED chip, and red-light LED light source is existed with the blue-ray LED excitation-emission peak value of 460-480nm
The nitride red fluorescent powder of 680-750 generates, and white LED light source is existed with the blue-ray LED excitation-emission peak value of 450-470nm
The Nitride yellow fluorescent powder of 580-610 generates.
4. a kind of full-spectrum LED light mixing system according to claim 3, it is characterised in that: the single white LED light source,
Single bluish-green LED light source is identical as the power of single red-light LED light source, the white LED light source quantity on white light lamp plate with it is bluish-green
The quantitative proportion of the red-light LED light source in bluish-green number of LED light sources and feux rouges lamp plate on lamp plate is (3-10): 1:1.
5. a kind of full-spectrum LED light mixing system according to claim 1, it is characterised in that: the first optical waveguide layer light source side
Level be equipped with the first light guiding points of uniform array arrangement, the level of the second optical waveguide layer light source side is equipped with uniform array arrangement
The second light guiding points, the level of third optical waveguide layer light source side is equipped with the third light guiding points of uniform array arrangement, the first light guiding points,
Second light guiding points and third light guiding points arranged for interval.
6. a kind of full-spectrum LED light mixing system according to claim 5, it is characterised in that: the quantity of third light guiding points is greater than
The quantity of second light guiding points is greater than the quantity of the first light guiding points.
7. a kind of full-spectrum LED light mixing system according to claim 5, it is characterised in that: first optical waveguide layer is by several
First unit light guiding points are constituted, and the second optical waveguide layer is made of several second unit light guiding points, and third to photosphere is by several third lists
First light guiding points are constituted.
8. a kind of full-spectrum LED light mixing system according to claim 7, it is characterised in that: the first unit light guiding points
Quantity is more than or equal to 10000, quantity, the quantity phase of second unit light guiding points and third unit light guiding points of first unit light guiding points
Together.
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