CN208670929U - Full nature spectrum LED illuminator and lighting device - Google Patents
Full nature spectrum LED illuminator and lighting device Download PDFInfo
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- CN208670929U CN208670929U CN201821008151.1U CN201821008151U CN208670929U CN 208670929 U CN208670929 U CN 208670929U CN 201821008151 U CN201821008151 U CN 201821008151U CN 208670929 U CN208670929 U CN 208670929U
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Abstract
The utility model provides a kind of complete natural spectrum LED illuminator, including substrate, luminescence component and circuit；Luminescence component includes that two white light units and a red light unit, two white light units are set to the two sides of red light unit；White light unit includes blue chip and Wavelength conversion film；White light mixes the quasi- natural light for obtaining complete natural spectrum with feux rouges；The relative spectral power of red light is greater than 0.60 in quasi- natural light；The relative spectral power of cyan light is greater than 0.30；For the relative spectral power of blue light less than 0.75, white light total light flux and the total light radiation ratio of feux rouges are 2-10:1.This light source generates the illuminating effect close to natural light, visual experience is more comfortable using three luminescence unit combinations；Blue light is lower, and green light is higher, is conducive to eyeshield and protection health；The relative spectral power of feux rouges is improved, there is beauty, health-care effect.Simple for structure, adaptability is good.
Description
Technical field
The utility model relates to LED technology field, in particular to a kind of complete natural spectrum LED illuminator and including the light source
Lighting device.
Background technique
Lamps and lanterns are the necessitys in daily life, and it is light source, energy-saving and environmental protection, brightness that existing lamps and lanterns, which generally use LED,
Height, it is standby welcomed by the people.However, there are still following problems for the light that issues of existing lamps and lanterns: first, blue light ratio mistake in light
Height, it is especially larger to the eyesight injury of the minors such as children there is a great harm for human eye and nerve.Second, relative to making one
Comfortable natural light, spectrum is imperfect, and vision is uncomfortable.
In order to pursue more comfortable illuminating effect, numerous research units are dedicated to developing the light source close to natural light, example
Such as, white light source is obtained using blue chip combination fluorescent powder, or white light etc. is obtained using the light mixing of red green blue tricolor chip.Ginseng
When as shown in Figure 12, using blue chip combination fluorescent powder, although structure is simple, uniformity of luminance is also preferable, and spectrum is still
Undesirable, especially blue light ratio is excessively high.Such as Figure 13, using the composite structure of red, green, blue chip, although also producing white light,
But central wavelength intensity is larger there are three only, and its all band is too low, and blue light ratio is higher, and the light-source structure is unfavorable for
Uniformly go out light.
There are also a kind of white light LEDs products to be arranged in biggish fluorescence coating by more multiple fluorescent moieties, wherein each fluorescence
Module corresponds to a kind of wavelength, with unification blue chip, different light is generated by different fluorescent moieties, then mix
To white light.This structure is difficult to realize uniform mixed light, and is extremely difficult to debug out near-nature forest light, moreover, its structure is complicated, volume
Greatly, applicability is bad.
Utility model content
The purpose of the present invention is to provide a kind of complete natural spectrum LED illuminators, it is intended to solve the illumination of Conventional LED light sources
Effect differs the technical issues of larger and unreasonable structure with natural lighting.
The utility model is realized in this way Quan Ziran spectrum LED illuminator, including substrate, it is set on the substrate
At least one set of luminescence component, and the circuit for being set on the substrate and being electrically connected with the luminescence component；Described in every group
Luminescence component includes two white light units and a red light unit, and described two white light units are set to the two of the red light unit
Side, the white light unit include blue chip and the Wavelength conversion film for covering the blue chip, and the red light unit includes red
Optical chip；The white light of the white light unit transmitting is mixed with the feux rouges that the red light unit emits, and obtains the standard of complete natural spectrum
Natural light；The total light flux of the white light unit and total light radiation ratio of the red light unit are 2-10:1；It is described quasi- natural
The relative spectral power of red light is greater than 0.60 in light；The relative spectral power of blue light is less than 0.75 in the quasi- natural light；
Blue light color ratio in the quasi- natural light is less than 5.7%.
Complete natural spectrum LED illuminator provided by the embodiment of the utility model at least has the effect that
First, this light source is compensated red in white light by two white light units and a red light unit combination using feux rouges
Light lack part obtains the quasi- natural light for being more nearly natural light, illuminates compared to conventional white light, and the wavelength of quasi- natural light is completeer
Whole, for each wave band relative spectral power closer to natural light, visual experience is more comfortable；
Second, emit feux rouges by red emitting luminophores, so that blue light is able to lower, is conducive to protect eyesight, it is especially young
Youngster and children's vision also help reduction due to the excessively high caused inferior health problem of blue light.
Third improves green light relative spectral power while reducing blue light, solves long-term in the research of near-nature forest light
The relatively low problem of existing green light, so that quasi- natural light is more nearly true nature light, but also colour rendering index is further promoted.
4th, the relative spectral power of feux rouges, especially 640-700nm feux rouges are improved with healthcare function, are improved
The Health Category of quasi- natural lighting.
5th, using two white light units and a red light unit combination, simple for structure, variable is controllable in debugging process
Property it is good, solve the problems, such as that the combination of multiple illuminators can not recall quasi- natural light, and obtain by supplement red light unit quasi- natural
Light solves the problems, such as that quasi- natural light can not be obtained in such a way that blue chip and fluorescent glue combine.
6th, white light unit and red light unit can be using the miniature illuminator for meeting performance requirement, light sources generally one
Miniature lamp bead, can multiple lamp beads be arranged in arbitrary form on the circuit board of various lamps and lanterns, due to its compact, may be disposed at
Any position of circuit board, flexible in application, lamps and lanterns Integral luminous is uniform, good illumination effect.
In one embodiment, the relative spectral power of the blue light of the quasi- a length of 440nm of natural light medium wave is less than
0.65；The relative spectral power of cyan light is greater than 0.30 in the quasi- natural light.
In one embodiment, the wave-length coverage of the red light chips is 640-700nm；
The feux rouges relative spectral power of the quasi- a length of 680~690nm of natural light medium wave is greater than 0.80；
The feux rouges relative spectral power of the quasi- a length of 640~680nm of natural light medium wave is greater than 0.60；
The feux rouges relative spectral power of the quasi- a length of 622~640nm of natural light medium wave is greater than 0.60.
In one embodiment, the relative spectral power of orange-colored light is greater than 0.55 in the quasi- natural light；
The relative spectral power of sodium yellow is greater than 0.50 in the quasi- natural light；
The relative spectral power of the quasi- natural light Green light is greater than 0.35.
The relative spectral power of purple light is less than 0.10 in the quasi- natural light.
In one embodiment, in the surface of the substrate, the wavelength turns for the blue chip and red light chips upside-down mounting
Changing film is fluorescent film or phosphor film；The fluorescent film or phosphor film with a thickness of 0.2-0.4mm.
In one embodiment, two white light units are symmetrically disposed on the two sides of the red light unit, the white light
The spacing of unit and red light unit is less than 1mm, and the light emitting angle of the white light unit is 160 ± 10 °, the complete natural spectrum
The length of LED illuminator is less than 6mm, and width is less than 3mm, is highly less than 2mm.
In one embodiment, the white light unit and red light unit series connection, it is positive and negative with same group of the circuit
Electrode connection, passes through identical driving current unified driving；
Or
Described two white light units connect same group of positive and negative electrode, and the red light unit connects another group of positive and negative electrode, institute
It states white light unit and red light unit respectively drives；
Or
Described two white light units are separately connected one group of positive and negative electrode, and the red light unit connects another group of positive and negative electrode,
The white light unit and red light unit respectively drive.
In one embodiment, the substrate is non-metallic substrate, and the substrate is equipped with reflector, the white light unit
It is set in the reflector with red light unit, the circuit is set to the surface of the substrate and in the bottom of the reflector
It is exposed, for connecting the white light unit and red light unit；The circuit is extended with to the outside of the reflector for connecting
First pin of external power supply, and for radiating and not being connected with external power source second pin.
In one embodiment, luminescence component described in every group further includes at least one color temperature adjustment chip, the colour temperature tune
Chip and the circuit connection are saved, the working condition by controlling the color temperature adjustment chip adjusts the complete natural spectrum LED
The colour temperature of illuminator.
The another object of the utility model is to provide a kind of lighting device, including any of the above-described kind of complete natural spectrum LED
Illuminator.
Detailed description of the invention
Fig. 1 is the schematic perspective view of complete natural spectrum LED illuminator provided by the embodiment of the utility model；
Fig. 2 is the top view of complete natural spectrum LED illuminator provided by the embodiment of the utility model；
Fig. 3 is the cross-sectional view of complete natural spectrum LED illuminator provided by the embodiment of the utility model；
Fig. 4 is the bottom view of complete natural spectrum LED illuminator provided by the embodiment of the utility model；
Fig. 5 is the structural schematic diagram of the white light unit of complete natural spectrum LED illuminator provided by the embodiment of the utility model；
Fig. 6 is the spectral schematic of quasi- natural light provided by the embodiment of the utility model；
Fig. 7 is the spectrum test report figure of quasi- natural light shown in Fig. 6；
Fig. 8 is the spectrum comparison diagram of quasi- natural radiant and natural light provided by the embodiment of the utility model；
Fig. 9 is the spectrum comparison diagram of existing near-nature forest radiant and natural light；
Figure 10 is the spectrogram of white light unit provided by the embodiment of the utility model；
Figure 11 is the white-light spectrum figure provided by the embodiment of the utility model using 452.5-455nm blue chip；
Figure 12 is the first spectrogram of white light source in the prior art；
Figure 13 is second of spectrogram of white light source in the prior art；
Figure 14 is a kind of spectrogram of near-nature forest radiant in the prior art.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this
Utility model is not used to limit the utility model.
It should be noted that when component is referred to as " being fixed on " or " being set to " another component, it can directly or
It connects and is located on another component.When a component referred to as " is connected to " another component, it be can be directly or indirectly
It is connected on another component.Term " on ", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top",
The orientation or position of the instructions such as "bottom", "inner", "outside" are orientation based on the figure or position, are merely for convenience of describing,
It should not be understood as the limitation to the technical program.Term " first ", " second " are used merely to facilitate description purpose, and should not be understood as
Indication or suggestion relative importance or the quantity for implicitly indicating technical characteristic.The meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In order to illustrate technical solution described in the utility model, carried out specifically below in conjunction with specific accompanying drawings and embodiments
It is bright.
The explanation of technical term:
1. relative spectral power:
A kind of spectrum that light source is emitted is frequently not single wavelength, but by the mixed radiation of many different wave lengths institute
Composition.The spectral radiance of light source is known as the spectral power distribution of light source by wavelength order and the distribution of each Wavelength strength.
Parameter for characterizing spectral power size is divided into absolute spectral power and relative spectral power.And then absolute spectrum
Power distribution curve: refer to curve made by the various wavelength light energy absolute values with spectral radiance；
Relative spectral power distributions curve: referring to that the energy by the various wavelength of radiation of light source spectrum is compared to each other, and makees
The spectral power distribution for changing radiant power only within the limits prescribed.The maximum phase of radiant power
It is 1 to spectral power, the relative spectral power of other wavelength is respectively less than 1.
2. color ratio:
Any white light can be mixed to get by Red Green Blue with corresponding proportion, in order to indicate that R, G, B three primary colors are each
Relative scale in comfortable white light total amount introduces chromaticity coordinate r, g, b, wherein r=R/ (R+G+B), g=G/ (R+G+B), b
=B/ (R+G+B), r+g+b=1, r, g, b are respectively red light color ratio, green light color ratio, blue light color ratio.
The utility model embodiment provides a kind of complete natural spectrum LED illuminator referring to FIG. 1 to FIG. 4, can be used for various
Lighting device.Including substrate 10, at least one set of luminescence component 20 being set on substrate 10, and be set on substrate 10 and with
The circuit 30 of luminescence component connection；Every group of luminescence component 20 all include two white light units 21 and a red light unit 22, two
White light unit 21 is respectively arranged at the two sides of red light unit 22；White light unit 21 includes blue chip 211 and covering blue chip
211 Wavelength conversion film 212, red light unit 22 include at least red light chips；The total light flux and red light unit of white light unit 21
22 total light radiation ratio is 2-10:1.Wherein, the feux rouges that red light unit 22 issues is mainly used for compensating relatively natural in white light
The part feux rouges that light lacks, the white light that white light unit 21 emits is mixed with the feux rouges that red light unit 22 emits obtains full natural light
The quasi- natural light of spectrum；In the quasi- natural light, the relative spectral power of red light is greater than 0.60；The relative spectral power of cyan light
Greater than 0.30；The relative spectral power of blue light is less than 0.75.
Specifically, it is seen that the wave-length coverage of various coloured light is as follows in light: red light (622~700nm), orange-colored light (597~
622nm), sodium yellow (577~597nm), green light (492~577nm), cyan light (475~492nm), blue light (435~
475nm), purple light (380~435nm).
In field of LED illumination, the lighting source for studying close to natural light is one of development trend of this field and numerous
Also there are some illumination productions being dedicated to close to natural light in the prior art in the direction that researcher and unit have been working hard
Product, the light that commonly referred to as this product generates is " near-nature forest light ", and near-nature forest light refers to spectral shape (the relative spectral function of corresponding wave band
Rate) it is close with natural light, at least partly optical parameter and natural light are close, which is not limited to certain numerical value.This reality
The complete natural spectrum LED illuminator applied in example is equally directed to realization and the more close illuminating effect of natural light, and can drop
The ratio of low blue light, is mainly manifested in relative spectral power more close to natural light, multiple optical parameters more close to natural light,
And then it is named as " quasi- natural light ".
Specifically, as described above, the basic support construction of this light source is substrate 10, luminescence component 20 is arranged in substrate 10
On, the quantity of luminescence component 20 is one group, two or more groups, and the structure and function of each luminescence component 20 is all consistent.This
Embodiment is preferably one group.Each group of luminescence component 20 all includes white light unit 21 and red light unit 22, that is, this light source issues quasi-
Natural light is realized by the mixing of white light and feux rouges.Wherein, feux rouges is for compensating what white light was lacked relative to natural spectrum
Part, and then form the quasi- natural light close to natural light.With reference to Fig. 5, which includes blue chip 211 and covering
The optical transition film 212 of blue chip 211, red light unit 22 include at least red light chips, will be blue by optical transition film 212
The monochromatic light that optical chip 211 issues carries out wavelength convert, generates other coloured light, forms white light after a variety of Colored light mixings, the white light
Quasi- natural light is formed with after feux rouges mixing.Every group of luminescence component 20 can issue quasi- natural light, therefore contain in this light source
In the case where multi-group light-emitting component 20, quasi- natural light can be equally issued.
Such as Fig. 6 to Fig. 8, the spectrogram and spectrum test data of quasi- natural light are respectively illustrated, can be seen that by the figure
The spectrum meets the spectrum parameter of above-mentioned feux rouges, green light and blue light, in addition, the ratio of blue light is lowered, close to natural light
Health is also helped simultaneously.With reference to Fig. 9, existing near-nature forest light spectrum and natural light spectrum still gap are larger, blue light ingredient
It is higher while clearly disadvantageous in red light portion and the appearance of green light part.
In addition, in the art, according to the rule that a large amount of conventional white light illuminates, white light colour temperature is higher, and shortwave grows up to
The ratio divided is higher, and blue light is higher or even purple light is also higher, and high blue light harm health is the beyond all doubt fact, while high
Colour temperature is conducive to promote identification, promotes the bright sense of environment, the state of mind for promoting people is also generally acknowledged common sense, conventional lighting sources
The usually white light of the high blue light of high color temperature, it is inevitable both advantageous and disadvantageous, it is difficult to take into account the demand of various aspects.According to Fig.7, this light source
In the high color temperature of 4000K or more, still meet blue light relative spectral power less than 0.75, is that a kind of low blue light of high color temperature shines
It is bright, can have the effect of simultaneously with eye health and the excitation state of mind.
Specifically, referring to Fig. 7, the result of light source light spectrum test report shown in Fig. 7 are as follows:
Color parameter:
Chromaticity coordinate: y=0.3568/u '=0.2143 x=0.3523
The duv=-2.225e-004 of v '=0.4883
Correlated colour temperature: Tc=4755K dominant wavelength: λ d=575.4nm excitation purity: Purity=12.8%
Color ratio: R=18.4% G=76.4% B=5.3%
Peak wavelength=447.5nm half width Δ λ d=20.9nm
Colour rendering index: Ra=97.3 AvgR=96.3 Kred=12.92%
Photometric parameter:
Light intensity: I=16.20mcd (CIE A condition) Ie=0.0612mW/Sr
Illumination and radiant illumination: E=0.1623lx Ee=0.613mW/m2
Electrical parameter:
Forward voltage VF=3.012V forward current IF=59.99mA power P=180.7mW
Classification: 51* [OUT] white light classification: ANSI_5000K.
Light source provided by the embodiment of the utility model at least has the effect that
First, this light source is compensated red in white light by two white light units and a red light unit combination using feux rouges
Light lack part obtains the quasi- natural light for being more nearly natural light, illuminates compared to conventional white light, and the wavelength of quasi- natural light is completeer
Whole, for each wave band relative spectral power closer to natural light, visual experience is more comfortable；
Second, by red emitting luminophores emit feux rouges so that blue light be able to it is a degree of lower, be conducive to protection view
Power, especially child and children's vision also help reduction due to the excessively high caused inferior health problem of blue light.
Third improves green light relative spectral power while reducing blue light, solves long-term in the research of near-nature forest light
The relatively low problem of existing green light, so that quasi- natural light is more nearly true nature light, but also colour rendering index is further promoted.
4th, the relative spectral power of feux rouges, especially 640-700nm feux rouges are improved with healthcare function, are improved
The Health Category of quasi- natural lighting.
5th, using two white light units and a red light unit combination, simple for structure, variable is controllable in debugging process
Property it is good, be achieved the debugging of quasi- natural light, solve the problems, such as that the combination of multiple illuminators can not recall quasi- natural light, and lead to
It crosses supplement red light unit and obtains quasi- natural light, quasi- nature can not be obtained in such a way that blue chip and fluorescent glue combine by solving
The problem of light.
6th, white light unit and red light unit can be using the miniature illuminator for meeting performance requirement, light sources generally one
Miniature lamp bead, can multiple lamp beads be arranged in arbitrary form on the circuit board of various lamps and lanterns, due to its compact, may be disposed at
Any position of circuit board, flexible in application, lamps and lanterns Integral luminous is uniform, good illumination effect.
In the present embodiment, the optical transition film 212 of white light unit 21 is fluorescent film or phosphor film, the wave of blue chip
Long range is 450-480nm；The wave-length coverage of red light chips be 640-700nm, specifically can be in the range some more
Minizone, such as wave-length coverage are 680-700nm, and corresponding central wavelength is 690 ± 5nm.Central wavelength is usually wave-length coverage
Central value, and allow to have the adjustable section ± 2nm or so.The case where for different sections, central wavelength can also be 660nm,
670nm, 680nm etc., the present embodiment are not limited to a certain kind.Preferably, the wave-length coverage of blue chip is 457.5-
480nm, at least 457.5-460nm.
The fluorescent powder that fluorescent film generally includes colloid and is mixed in inside colloid, colloid can choose existing silica gel.It is glimmering
The fluorescent film is subject in the selection of light powder and blue chip combination generates default white light.The default white light is close to the white of natural light
Light, spectrum are as shown in Figure 10.Specifically: when colour temperature is 2700K-3000K, the relative spectral power of 480-500nm wave band is greater than
0.30；The relative spectral power of 500-640nm wave band is greater than 0.70；When colour temperature is 4000K-4200K, 480-500nm wave band
Relative spectral power is greater than 0.45；The relative spectral power of 500-640nm wave band is greater than 0.65；Colour temperature is 5500K-6000K
When, the relative spectral power of 480-500nm wave band is greater than 0.4；The relative spectral power of 500-640nm wave band is greater than 0.60.This
Kind white-light emitting body 21 is combined with above-mentioned red emitting luminophores 22, available quasi- natural light LED light source, can be issued quasi- natural
Light.The selection of fluorescent powder can there are many, according to above-mentioned requirements purchase existing product on the market.
Further, with reference to Fig. 8 and Fig. 9, the spectrum of this light source is also extremely similar with natural light in its all band, and existing
Near-nature forest radiant is then difficult to realize.Such as Fig. 6 and Fig. 7, the relative spectral power of orange-colored light is greater than 0.55 in quasi- natural light；Yellow
The relative spectral power of light is greater than 0.50；The relative spectral power of green light is greater than 0.35；The relative spectral power of purple light is small
It is close with natural light in 0.10.
In addition, this light source while each band spectrum more optimizes, is also required with stringent optical parameter, such as color
Temperature, color tolerance, colour rendering index Ra, colour rendering index R9, colour rendering index R12 and blue light color ratio etc..Specifically, quasi- natural light
Colour temperature includes 2500K-6500K, and color tolerance is less than 5, and blue light color ratio is less than 5.7%.It is aobvious to refer to that Ra is greater than 95, wherein the aobvious finger of R9
Aobvious finger greater than 90, R12 is greater than 80.It can determine that this light source can satisfy above-mentioned requirements, and the blue light of this light source according to Fig. 7
Color ratio can be reduced to 5.5% hereinafter, colour rendering index Ra is increased to 97 or more, and colour rendering index R9 reaches 95 or more, colour rendering index
R12 has reached 83, and in other test report, colour rendering index R12 can achieve 87.
Further, the blue light of 440nm is maximum to the injury of eyesight in blue light, as further prioritization scheme, this reality
Example is applied also using the relative spectral power of 440nm blue light as optical parameter to be detected.The case where blue light color ratio is lower than 5.7%
Under, the relative spectral power of 440nm blue light is lower than 0.65.This is that existing eyeshield electronic equipment is difficult to realize.Existing " shield
Eye " electronic product, blue light color ratio is although lower, but wherein injures the inhibition of maximum 440nm blue light and unknown to human eye
Aobvious, eye-protecting function is very little.And other wavelength band components in blue light are necessary visual acuity, significantly inhibit blue light not
Only eyeshield effect is unobvious, can also cause adverse effect to the visual acuity of the crowds such as children, child, such as due to blue light ingredient
Excessive missing, lead to anomalous trichromatism, the problems such as chromatic discrimination power declines.The present embodiment blue light color ratio is reduced to it is 5.7% below
On the basis of, emphasis inhibits the intensity of 440nm blue light, can really play the role of protecting eyesight.
The utility model is to carry out a large amount of pilot scale study using above-mentioned optical parameter and spectrum as target, and final determine uses
Above-mentioned white light unit 21 and red light unit 22, and the luminous flux of white light unit 21 and the light radiation of red light unit 22 has been determined
The ratio between amount, based on the determining corresponding electrical parameter of the ratio and experiment, the illuminator for choosing appropriate size and quantity makes above-mentioned light
Source.
It is preferred that using miniature white light unit 21 and red light unit 22, selected according to light flux ratio and the size of installation space
Small dimension and the higher blue chip of cost performance and red light chips, preferential selection few as far as possible red light unit 22 and white light unit
21,1 red light unit and 2 white light units are selected in the present embodiment.It is fabricated to single light source, a light source is arranged one group and shines
Component 20.It since the light source can directly issue quasi- natural light, and then can be used in various lamps and lanterns, any combination, can protect
Its preferable illumination effect is demonstrate,proved, it is adaptable.It is of course also possible to multi-group light-emitting component 20 is integrated in a light source, at this time
It still can guarantee preferable light-out effect, only size increases.
Specifically, the ratio between the luminous flux of the white light unit 21 and the light radiation of red light unit 22 are 2-10:1, preferably
2-3:1, the quantity of white light unit are 2, and the quantity of red light unit is 1, and two white light units are symmetrically distributed in red light unit
Two sides, the spacing of white light unit and red light unit controls within 1mm or so or 1mm.The light radiation of red light unit 22
For 80-160mW, the total light flux of white light unit 21 is 200-350lm.
About the mounting means of chip, preferably by blue chip and red light chips upside-down mounting in the surface of substrate 10, upside-down mounting core
Piece is conducive to effectively connect with the circuit 30 on substrate 10, is conducive to high efficiency and heat radiation, can be unified on chip by equipment
Film guarantees that the fluorescent film consistency of different product is good, and then consistency difference can be caused to avoid the dispensing process of formal dress chip
Problem, meanwhile, so that different product is in same BIN when colour temperature is identical, colour temperature consistency is good.
In addition, flip-chip but also the volume of white light unit 21 further decreases, is conducive to dimension of light source control.At this
In embodiment, the width of white light unit 21 is less than 0.8mm, is highly less than 0.3mm, and red light unit 22 can be controlled in same range
It is interior.Adjacent white light unit 21 and 22 spacing of red light unit is 1mm or less.The length of this illuminator is less than or equal to 6mm, wide
Spend about 3mm.
Certainly, the utility model is not limited to using flip-chip, is also feasible using positive cartridge chip.
In one embodiment, substrate 10 is preferably the lamellar structure of nonmetallic materials production, and substrate 10 is equipped with reflection
Cup 11, white light unit 21, red light unit 22 are set in reflector 11.
Further, the inner wall of reflector 11 is equipped with reflective surface 111, is also filled with packing colloid inside reflector 11
(not shown), reflective surface 111 for white light and feux rouges to be reflected, packing colloid for protect 11 internal structure of reflector and
Keep light-source structure more stable, and refraction adjustment is carried out to light.White light and feux rouges export after being sufficiently mixed by packing colloid.
Specifically, white light unit 21 and the light emitting angle of red light unit 22 can be 160 ° or so to 180 °, and the light-emitting angle of light source is
120 ° or so.Entire light source is the quasi- natural light lamp bead of small-sized uniformly light-emitting.
Further, circuit 30 is formed in the surface of substrate 10, and is wrapped in the tow sides of substrate 10, and in reflector
Positive and negative anodes pin is formed except 11, for connecting power supply, the positive partial circuit of substrate exposes in the bottom of reflector 11, is used for
It is connect with white light unit 21 and red light unit 22.
In driving method, there are two types of embodiment, first, white light unit 21 and red light unit 22 be separately connected it is different just
Negative pin is operated alone, and respective driving current is different at this time, and control chip can be cooperated to be controlled.Second, white light list
Member 21 and red light unit 22 are connected, that is, connect identical positive and negative anodes pin, and unified same current driving is not required to control chip and carries out
Control.The present embodiment is preferably second of driving method.With reference to Fig. 1 and Fig. 2, two white light units 21 and a red light unit 22
Series connection, two white light units 21 are separately connected first pin 31, and 31 self-reflection cup of the first pin, 11 bottom is stretched out, for connecting
External power supply is connect, red light unit 22 is series between two white light units 21.
The mode of unified driving obviously has apparent advantage, does not need to configure different drivings for different illuminators
Electric current does not need to increase control circuit, it is only necessary to power according to its corresponding electric current.It is therefore, more simplified in structure,
Volume further decreases, and application is easier flexibly, and cost is lower.This is the preferred circuit connection scheme of the utility model.
Further, the actual ratio of the luminous flux of white light unit 21 and the light radiation of red light unit 22 is 2-3:1,
Electric current is between 20-100mA, preferably 60mA.Select the light in series of 2 white light unit 21 and 1 red light units 22
Source, the light radiation of red light unit 22 are 80-160mW, and the total light flux of two white light units 21 is 200-350lm, single light
The power in source is 0.5W or so.White light unit 21 has previously described structure and spectral signature, and red light unit selects feux rouges core
Piece and have wavelength above-mentioned.Reference color temperature can cover 2700-6000K, and in the case that colour temperature is different, real data is slightly not
Together.It can according to need the corresponding data for determining several colour temperatures, manufacture corresponding product.For example, being used for the lamps and lanterns of office space, lead to
Often the selection higher product of colour temperature generally selects the lower product of colour temperature for the lamps and lanterns of household.
Further, which is also provided with second pin 32, which is not used in connection external power supply,
But be used to radiate, and promote the symmetry of light source entirety, the stability for promoting intensity and being installed on 30 plate of circuit.
Further, the utility model embodiment can also add a color temperature adjustment chip, the colour temperature on substrate 10
It adjusts chip to be arranged independently of luminescence component 20, correspondingly, appropriate adjustment is carried out to circuit 30, keeps color temperature adjustment chip only
It is vertical to shine or extinguish, and then by controlling its luminance, the quasi- natural light issued with luminescence component 20 is mixed, and is adjusted
Colour temperature.
About the optical property of this light source, also it should be mentioned that this light source is all satisfied the feelings of requirement in spectrum and optical parameter
Under condition, the relative spectral power of 640-700nm feux rouges is obviously improved, this is difficult in existing near-nature forest radiant
It realizes, is mainly shown as that the promotion of feux rouges and entire spectral shape and other optical parameters are difficult to take into account.The present embodiment passes through big
The basic research of amount and continuous optimization process are just achieved.Such as Fig. 6, wavelength is the feux rouges relative spectral function of 680~690nm
Rate is greater than 0.80；The feux rouges relative spectral power that wavelength is 622~680nm is greater than 0.60.Such as Fig. 9 and Figure 14, traditional near-nature forest
Radiant the trend being decreased obviously can occur in the wave band after 640nm.640-700nm feux rouges has excellent health care, reason
It treats, beautification function.The light source is suitable for handling official business, lighting of home and needs high proportion feux rouges and the particular field close to natural lighting
Institute.
Also, by the test of different-colour light source, when the colour temperature of quasi- natural light is 2700K-3000K, 640-700nm
The relative spectral power of feux rouges is greater than 0.70；The colour temperature of quasi- natural light be 4000K-4200K when, 640-700nm feux rouges it is opposite
Spectral power is greater than 0.60；When the colour temperature of quasi- natural light is 5500K-6000K, the relative spectral power of 640-700nm feux rouges is big
In 0.50.
Also it should be mentioned that in numerous near-nature forest light LED light sources, green light ratio is difficult to promotion, is dragging down indigo plant
It is more difficult to promote green light in the case where light, while aobvious finger R12 corresponding with green light is also to be difficult to be promoted.The utility model is real
It applies example and on the one hand passes through breakthrough orthodox practice (using the blue chip of 450-455nm), selected the blue light of 457.5nm-480nm
On the other hand chip is dedicated to the exploitation of fluorescent film, work along both lines so that the relative spectral power of green light is obviously improved.Together
When due to green light promotion, while promoted it is aobvious refer to R12, also help somewhat to be able to maintain while inhibiting blue light
Higher color temperature.Such as Figure 11, the green light relative spectral power in traditional near-nature forest light is lower than 0.3, such as Fig. 6 and Fig. 7, in the present embodiment
Green light relative spectral power reach 0.4 or more.
It show the spectrum of white light unit 21 in the present embodiment with further reference to Figure 10 and Figure 11, Figure 10, uses
When the blue chip of 457.5nm-460nm, green light relative spectral power has reached 0.5 or more, such as uses 457.5nm-480nm
Blue chip, green light relative spectral power can promote further.It is green when using 452.5-455nm blue chip in Figure 11
Light relative spectral is only between 0.35-0.38.
Also, by the test of different-colour light source, when the colour temperature of quasi- natural light is 2700K-3000K, 475-492nm
The green light relative spectral power of wave band is greater than 0.30；When the colour temperature of quasi- natural light is 4000K-4200K, 475-492nm wave band
Green light relative spectral power is greater than 0.40；When the colour temperature of quasi- natural light is 5500K-6000K, the green light phase of 475-492nm wave band
0.50 is greater than to spectral power.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (10)
1. full nature spectrum LED illuminator, which is characterized in that shine including substrate, at least one set being set on the substrate
Component, and the circuit for being set on the substrate and being electrically connected with the luminescence component；Luminescence component described in every group includes two
A white light unit and a red light unit, described two white light units are set to the two sides of the red light unit, the white light list
Member includes blue chip and the Wavelength conversion film for covering the blue chip, and the red light unit includes red light chips；It is described white
The white light of light unit transmitting is mixed with the feux rouges that the red light unit emits, and obtains the quasi- natural light of complete natural spectrum；It is described white
The total light flux of light unit and total light radiation ratio of the red light unit are 2-10:1；The phase of red light in the quasi- natural light
0.60 is greater than to spectral power；The relative spectral power of blue light is less than 0.75 in the quasi- natural light；In the quasi- natural light
Blue light color ratio less than 5.7%.
2. complete natural spectrum LED illuminator as described in claim 1, which is characterized in that the quasi- natural light medium wave is a length of
The relative spectral power of the blue light of 440nm is less than 0.65；The relative spectral power of cyan light is greater than in the quasi- natural light
0.30。
3. complete natural spectrum LED illuminator as described in claim 1, which is characterized in that the wave-length coverage of the red light chips
For 640-700nm；
The feux rouges relative spectral power of the quasi- a length of 680~690nm of natural light medium wave is greater than 0.80；
The feux rouges relative spectral power of the quasi- a length of 640~680nm of natural light medium wave is greater than 0.60；
The feux rouges relative spectral power of the quasi- a length of 622~640nm of natural light medium wave is greater than 0.60.
4. complete natural spectrum LED illuminator as claimed in claim 3, which is characterized in that
The relative spectral power of orange-colored light is greater than 0.55 in the quasi- natural light；
The relative spectral power of sodium yellow is greater than 0.50 in the quasi- natural light；
The relative spectral power of the quasi- natural light Green light is greater than 0.35；
The relative spectral power of purple light is less than 0.10 in the quasi- natural light.
5. complete natural spectrum LED illuminator as described in claim 1, which is characterized in that the blue chip and red light chips
In the surface of the substrate, the Wavelength conversion film is fluorescent film or phosphor film for upside-down mounting；The thickness of the fluorescent film or phosphor film
For 0.2-0.4mm.
6. complete natural spectrum LED illuminator as described in claim 1, which is characterized in that two white light units are symmetrically set
It is placed in the two sides of the red light unit, the spacing of the white light unit and red light unit is less than 1mm, and the white light unit shines
Angle is 160 ± 10 °, and the length of the complete natural spectrum LED illuminator is less than 6mm, and width is less than 3mm, is highly less than 2mm.
7. complete natural spectrum LED illuminator as described in claim 1, which is characterized in that the white light unit and the feux rouges
Unit series connection, connect with same group of positive and negative electrode of the circuit, passes through identical driving current unified driving；
Or
Described two white light units connect same group of positive and negative electrode, and the red light unit connects another group of positive and negative electrode, described white
Light unit and red light unit respectively drive；
Or
Described two white light units are separately connected one group of positive and negative electrode, and the red light unit connects another group of positive and negative electrode, described
White light unit and red light unit respectively drive.
8. complete natural spectrum LED illuminator as described in claim 1, which is characterized in that the substrate is non-metallic substrate, institute
Substrate is stated equipped with reflector, the white light unit and red light unit are set in the reflector, and the circuit is set to institute
The surface of substrate and exposed in the bottom of the reflector is stated, for connecting the white light unit and red light unit；The circuit
Be extended with the first pin for connecting external power supply to the outside of the reflector, and for radiate and not with external power supply
The second pin of connection.
9. spectrum LED illuminator as described in claim 1 complete natural, which is characterized in that luminescence component described in every group further includes
At least one color temperature adjustment chip, the color temperature adjustment chip and the circuit connection, by controlling the color temperature adjustment chip
Working condition adjust the colour temperature of the complete natural spectrum LED illuminator.
10. a kind of lighting device, which is characterized in that shine including the described in any item full nature spectrum LED of claim 1 to 9
Body.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821008151.1U CN208670929U (en) | 2018-06-27 | 2018-06-27 | Full nature spectrum LED illuminator and lighting device |
| PCT/CN2018/095313 WO2020000517A1 (en) | 2018-06-27 | 2018-07-11 | Led emitter for providing light completely within natural spectrum and light fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821008151.1U CN208670929U (en) | 2018-06-27 | 2018-06-27 | Full nature spectrum LED illuminator and lighting device |
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| Publication Number | Publication Date |
|---|---|
| CN208670929U true CN208670929U (en) | 2019-03-29 |
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ID=65825792
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821008151.1U Expired - Fee Related CN208670929U (en) | 2018-06-27 | 2018-06-27 | Full nature spectrum LED illuminator and lighting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024109783A1 (en) * | 2022-11-21 | 2024-05-30 | 四川世纪和光科技发展有限公司 | Led eye-care lighting use method and device used by same |
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2018
- 2018-06-27 CN CN201821008151.1U patent/CN208670929U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024109783A1 (en) * | 2022-11-21 | 2024-05-30 | 四川世纪和光科技发展有限公司 | Led eye-care lighting use method and device used by same |
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