CN102036435B

CN102036435B - Light color toning method and light color variable light-emitting diode light source module

Info

Publication number: CN102036435B
Application number: CN200910174507.8A
Authority: CN
Inventors: 郭家泰; 李兆伟; 胡鸿烈
Original assignee: Industrial Technology Research Institute ITRI
Current assignee: Industrial Technology Research Institute ITRI
Priority date: 2009-09-28
Filing date: 2009-09-28
Publication date: 2014-04-30
Anticipated expiration: 2029-09-28
Also published as: CN102036435A

Abstract

The invention discloses a light color toning method and a light color variable light-emitting diode (LED) light source module. The method is suitable for toning mixed light of predetermined color coordinates or predetermined color rendering indexes. The LED light source module is provided with a first wide spectrum LED, a second wide spectrum LED and a control unit. The first wide spectrum LED and the second wide spectrum LED are toned by the control unit respectively to generate first wide spectrum monochromatic light and second wide spectrum monochromatic light. The half wave widths of the first wide spectrum monochromatic light and the second wide spectrum monochromatic light are more than 20, and the first wide spectrum monochromatic light and the second wide spectrum monochromatic light have different color coordinates. Therefore, by proper toning of the control unit, the color coordinates of the mixed light mixed by the first and second wide spectrum monochromatic light fall on online of the color coordinates of the first and second wide spectrum monochromatic light, and the mixed light has predetermined color rendering indexes. By adopting the light color toning method and the light color variable LED light source module, rays of predetermined color coordinates, color temperatures or rendering indexes can be toned, and mixed light of continuous light spectrum is obtained.

Description

A kind of photochromic modulator approach and photochromic variable LED light-source module

Technical field

The present invention relates to a kind of LED light-source module, particularly a kind of photochromic variable LED light source device and photochromic modulator approach.

Background technology

Light emitting diode (Light Emitting Diode, LED) is by the made luminescence component of semi-conducting material, the advantages such as it has, and volume is little, life-span length, low driving voltage, power consumption is low, vibration strength is good.LED has been widely used in the fields such as indicator lamp, illumination and backlight (backlight) at present.

It is wide that general illumination is used is all white light, and due to the luminous narrow spectrum of single LED chip, and itself cannot send white light, thereby, need to reach the object that produces white light by some skills.The method of current common generation white light has two kinds.For utilizing the blue-light excited fluorescent material that blue-ray LED produces to produce a gold-tinted, after the gold-tinted of this generation and blue light with formation white light; The second is with red-light LED, green light LED and blue-ray LED, to be mixed into white light simultaneously.

Different photochromic light, has different color temperature (Color Temperature, hereinafter to be referred as colour temperature), for example, when light source color temperature is when 3000K is following, photochromicly starts to have partially red phenomenon, gives the warm sensation of people; When colour temperature surpasses 5000K, color is partial to blue light, gives the chilly sensation of people.Therefore, the height of light source color temperature changes the indoor atmosphere of impact.In order to allow the colour temperature that user can controlling chamber intraoral illumination, the photochromic adjustable module of existing LED is mostly used by red-light LED, green light LED and blue-ray LED and is come mixed light to obtain photochromic variable LED module.Because the luminous frequency spectrum of monochromatic light LED is generally not wide, belong to narrow frequency spectrum light source, therefore, the mixed light most continuity of white color frequency spectrum is out not good, and then makes its color rendering (colorrendering index, CRI) not good.Application for lighting field, the quality requirement of its required white light is higher, needs more continuous spectrum (for example: white light needs high color rendering).And carry out the photochromic method of modulation with existing red-light LED, green light LED and blue-ray LED, cannot obtain the more continuous spectrum of frequency spectrum (meaning is the white light of tool high color rendering).

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of photochromic modulator approach and photochromic variable LED light-source module, to produce the comparatively continuous light of optical spectrum by this modulator approach, and obtains the white light of high color rendering.

Following so-called " more than one ", " more than two ", " more than three ", " at least one " are that tool connects given figure calculating herein; " a plurality of " do not comprise one.

For achieving the above object, according to photochromic modulator approach of the present invention, its white light emitting diode that comprises a plurality of tool high color renderings of modulation (LED) is to produce at least the first white light with the second white light, mix the first white light and the second white light thereafter again, the chromaticity coordinates of this first white light and the second white light is different, and the color rendering of the first white light and the second white light is more than or equal to 85, preferable states can make the color rendering of at least one white light for being more than or equal to 90, and optimum can make the color rendering of at least one white light be greater than 95.

The step of aforementioned generation the first white light and the second white light is for exciting blue-light LED chip to produce blue light, continue and make blue light pass through a fluorescence coating to produce respectively a green glow and a ruddiness, then produce aforementioned the first white light or the second white light after blue light, ruddiness are mixed with green glow.

Aforementioned the step of blue light by fluorescence coating also can be changed to make blue light by fluorescence coating to produce respectively gold-tinted and ruddiness, continuous by gold-tinted, ruddiness and blue light to produce the first white light or the second white light.In addition, also can make blue light by fluorescence coating to produce respectively green glow, gold-tinted and ruddiness, then by after green glow, gold-tinted, ruddiness and blue light, produce aforementioned the first white light or the second white light.

Moreover, the step of aforementioned generation the first white light and the second white light also can be and excites ultraviolet light (UV, ultraviolet) LED chip is to produce ultraviolet light, continue and make ultraviolet light pass through a fluorescence coating to produce respectively a ruddiness, green glow and a blue light, then will after ruddiness, green glow and blue light, produce aforementioned the first white light or the second white light.

Aforementioned photochromic modulator approach separately comprises modulation monochromatic LED to produce a monochromatic light, continuous by this monochromatic light, the first white light and the second white light mixed light, this monochromatic light is narrow frequency spectrum monochromatic light, or preferably, this monochromatic light can be wide spectrum monochromatic light, and it can excite monochromatic fluorescent material to form by comprising UV LED; Or it can excite monochromatic fluorescent material to form by comprising blue-ray LED, wherein blue light is entirely monochromatic fluorescent material absorption, one of category that this also defines for wide spectrum monochromatic light.

And, for achieving the above object, another embodiment of photochromic modulator approach according to the present invention, it comprises a plurality of wide spectrum monochromatic LED of modulation s to produce the first wide spectrum monochromatic light with the second wide spectrum monochromatic light and to mix the first wide spectrum monochromatic light and the second wide spectrum monochromatic light.Wherein the monochromatic half-wave of first and second wide spectrum is wider than or equals 20 nanometers, is preferably and is more than or equal to 25 nanometers, best for being more than or equal to 30 nanometers, it should be noted that: the value wide when half-wave is larger, and mixing photochromic spectral continuity is out better; Wherein, the monochromatic chromaticity coordinates of this first wide spectrum is different from the monochromatic chromaticity coordinates of this second wide spectrum.

And for achieving the above object, according to the first embodiment of the photochromic variable LED light source module of the present invention, this LED light source module comprises the first white light LEDs, the second white light LEDs and control module.The first white light LEDs controlled unit excites to produce the first white light and its color rendering is more than or equal to 85.The second white light LEDs controlled unit excites to produce the second white light and mixes with the first white light.The color rendering of the second white light is more than or equal to 85.The chromaticity coordinates of the first white light is different from the chromaticity coordinates of this second white light.

Wherein the first white light LEDs and the second white light LEDs can be to comprise respectively a blue-light LED chip and a fluorescence coating.This fluorescence coating includes a plurality of fluorescent material.After being excited, blue-light LED chip produces blue light.Blue light when the fluorescence coating, excitated fluorescent powder and produce multiple monochromatic light, those monochromatic light and blue light are to produce aforementioned the first white light or the second white light.Control module is by electric current, pulse width or the electric current of first, second white light LEDs of modulation and pulse width and adjust chromaticity coordinates or the color rendering of mixed light.

According to the second embodiment of the photochromic variable LED light source module of the present invention, it comprises the first white light LEDs, the second white light LEDs, monochromatic light LED and control module.Monochromatic LED controlled unit excites and produces a monochromatic light.This monochromatic light is mix with this first white light and this second white light and produce mixed light.Control module obtains the mixed light of predetermined color coordinate or color rendering by modulation the first white light LEDs, the second white light LEDs and monochromatic LED.

Except monochromatic light mixes and produces mixed light with this first white light and this second white light, also can select wide spectrum monochromatic light, for example, this wide spectrum monochromatic light LED comprises UV LED chip and fluorescence coating.Fluorescence coating has a fluorescent material, and UV LED chip produces a ultraviolet light while being excited.Ultraviolet light is by this fluorescence coating and send this wide spectrum monochromatic light, wide spectrum monochromatic light is mixed with this first white light and this second white light and produce mixed light; Or wide spectrum monochromatic light also can be by blue-light LED chip, the monochromatic fluorescent material of arranging in pairs or groups, monochromatic fluorescent material absorbs blue-ray LED emitted light completely, and is converted to required wide spectrum monochromatic light.

And for achieving the above object, according to the 3rd embodiment of the photochromic variable LED light source module of the present invention, it comprises the first wide spectrum monochromatic LED, the second wide spectrum monochromatic LED and control module.The first wide spectrum monochromatic LED controlled unit excites to produce the first wide spectrum monochromatic light.The second wide spectrum monochromatic LED controlled unit excites to produce the second wide spectrum monochromatic light.The second wide spectrum monochromatic light mixes with the first wide spectrum monochromatic light and produces mixed light, wherein, the half-wave of this first wide spectrum monochromatic LED and this second wide spectrum monochromatic LED is wider than or equals 20 nanometers, and the monochromatic chromaticity coordinates of this first wide spectrum is different from the monochromatic chromaticity coordinates of this second wide spectrum.

The photochromic modulator approach and the photochromic variable LED light source module that adopt the invention described above of the present invention, can modulate the light of predetermined color coordinate, colour temperature or color rendering, and obtain the continuous mixed light of optical spectrum.And, the application utilizes under electric current passes through, and the colour temperature of white LEDs is not easy to raise and produces drift characteristic with temperature, no matter make, is a plurality of high color rendering white LEDs of use, or at least one monochromatic light LED that arranges in pairs or groups is while doing the modulation of photochromic and colour temperature, more easily controls and in scope, do to change.

Below in conjunction with the drawings and specific embodiments, describe the present invention, but not as a limitation of the invention.

Accompanying drawing explanation

Fig. 1 is the schematic flow sheet according to photochromic modulator approach the first embodiment of the present invention;

Fig. 2 A, Fig. 2 B and Fig. 2 C are the optical spectrum schematic diagram according to the first white light of the present invention and the second white light;

Fig. 3 A and Fig. 3 B are Fig. 2 A, Fig. 2 B and the chromaticity coordinates position view of Fig. 2 C on CIE chromaticity coordinates figure;

Fig. 4 is the schematic flow sheet according to photochromic modulator approach the first embodiment step S10 of the present invention;

Fig. 5 is the schematic flow sheet according to the first embodiment of the photochromic modulator approach step of the present invention S100;

Fig. 6 is the schematic flow sheet according to the second embodiment of the photochromic modulator approach step of the present invention S100;

Fig. 7 is the schematic flow sheet according to the 3rd embodiment of the photochromic modulator approach step of the present invention S100;

Fig. 8 is the schematic flow sheet according to the 4th embodiment of the photochromic modulator approach step of the present invention S100;

Fig. 9 is the first additional schematic flow sheet according to photochromic modulator approach the first embodiment of the present invention;

Figure 10 is the schematic flow sheet according to the photochromic modulator approach step of the present invention S14;

Figure 11 is the second additional schematic flow sheet according to photochromic modulator approach the first embodiment of the present invention;

Figure 12 is the schematic flow sheet according to photochromic modulator approach the second embodiment of the present invention;

Figure 13 is the schematic flow sheet according to the photochromic modulator approach step of the present invention S20;

Figure 14 is the structural representation according to the photochromic variable light emitting diode of the present invention (LED) light source module the first embodiment;

Figure 15 is the structural representation according to photochromic variable LED light source module the second embodiment of the present invention;

Figure 16 is the structural representation according to photochromic variable LED light source module the 3rd embodiment of the present invention;

Figure 17 is the structural representation according to photochromic variable LED light source module the 4th practical range of the present invention;

Figure 18 is in the structural representation of light fixture according to the photochromic variable LED light source module application of the present invention.

Wherein, Reference numeral:

40: light fixture

42: lamp body

44a, 44b: photochromic variable LED light source module

52: substrate

520,522,524,526: monochromatic LED chip

60,70,80: photochromic variable LED light source module

The 62,72: first white light LEDs

The 64,74: second white light LEDs

56,66,76,86: control module

620,640,720,740,780,820,840: substrate

622,642,722: blue-light LED chip

624,644,724,744,784: fluorescence coating

621,641: carrying cup

625,645,728,748,786,825,845: leaded light colloid

626,646,725,745,826: the first fluorescent material

627,647,726,746,846: the second fluorescent material

The 727,747: three fluorescent material

785: the four fluorescent material

742,782,822,842:UV LED chip

824: the first fluorescence coatings

844: the second fluorescence coatings

78,82,84: wide spectrum monochromatic LED

90,92,94: peak value (blue light, green glow, ruddiness)

W1, W2, W3: first, second and third white light

The specific embodiment

Below in conjunction with accompanying drawing, structural principle of the present invention and operation principle are described in detail:

Photochromic modulator approach the first embodiment

Fig. 1 is the schematic flow sheet according to photochromic modulator approach the first embodiment of the present invention.From figure, can see that knowing this photochromic modulator approach comprises S10: a plurality of white light LEDs of modulation are to produce at least one the first white light and one second white light; And S12: mix the first white light and the second white light.

Aforementioned photochromic modulator approach refers to the method for the chromaticity coordinates of adjusting the light that produces.The color rendering of the first white light and the second white light is more than or equal to 85.Preferable states can make the color rendering of at least one white light be more than or equal to 90, and optimum state can make the color rendering of at least one white light be greater than 95.The chromaticity coordinates of the first white light is different from the chromaticity coordinates of the second white light.

Please refer to Fig. 2 A, Fig. 2 B and Fig. 2 C, it is the optical spectrum schematic diagram according to the first white light of the present invention and the second white light.Trunnion axis in Fig. 2 A represents wavelength, and unit is nanometer, and vertical axis is luminous intensity, and unit is relative intensity (A.U.).From Fig. 2 A, can find out that this optical spectrum has three main peak values 90,92,94, represents respectively three different colors.Near being denoted as 94 spectrum, represent ruddiness.Near being denoted as 92 spectrum, represent green glow.Near being denoted as 90 spectrum, represent blue light.By the spectrogram of Fig. 2 A, can find out that its light producing is white light.In the composition of this white light, the luminous intensity of blue light 90 is greater than the luminous intensity of green glow 92.The luminous intensity of green glow 92 is greater than the luminous intensity of ruddiness 94.In this example, ruddiness 94, green glow 92 are about 1: 0.6: 0.46 with the peak strength ratio of blue light 90 3 looks.But the present invention is not as limit.From Fig. 2 A, separately can see and know in the spectral region of visible ray (400-780 nanometer), the luminous intensity of each wavelength is quite continuous.The color rendering of the white light in Fig. 2 A is 94, and colour temperature is 6000K.In this embodiment, the green light fluorescent powder using can absorb that blue light converts green glow to, red light fluorescent powder can absorb blue light and green glow converts ruddiness to, so when blue light electric current increases, blue light strength strengthens, green light fluorescent powder and red light fluorescent powder can absorb blue light simultaneously simultaneously, therefore, when also high color rendering white light LEDs utilizes electric current to arrange luminous intensity, its colour temperature and coordinate and spectrum peak ratio do not arrange with electric current and change.

In Fig. 2 B, can see and know, the white light of Fig. 2 B also have ruddiness 94, green glow 92 and, 90 3 kinds of blue lights are photochromic.The luminous intensity that the difference of itself and Fig. 2 A is main coloured light in Fig. 2 B spectrogram by by force to a little less than be sequentially blue light 90, ruddiness 94, green glow 92.Though and three photochromic intensity are variant, difference is little.Similarly, in Fig. 2 B, the luminous intensity of each wavelength is quite continuous, and the color rendering of the white light in Fig. 2 B is through measuring, and its value is also 94.

In Fig. 2 C each main photochromic luminous intensity of white light by by force to weak also order be ruddiness 94, green glow 92 and, blue light 90.Wherein, blue light 90 is very approaching with the luminous intensity of green glow 92.The luminous intensity of each wavelength of this white light is quite continuous, and its color rendering is also 94.

Please continue with reference to figure 3A and Fig. 3 B.It is for Fig. 2 A, Fig. 2 B, with the chromaticity coordinates position view of Fig. 2 C on CIE chromaticity coordinates figure.The point that indicates W1 in figure is the chromaticity coordinates position of the white light of corresponding diagram 2A.The point that indicates W2 in figure is the chromaticity coordinates position of the white light of corresponding diagram 2B.The point that indicates W3 in figure is the chromaticity coordinates position of the white light of corresponding diagram 2C.

The white light W1 position of Fig. 2 A approaches blue light position (also because the higher cause of ratio of its blue light), is commonly referred to as cold white light (Cool White).Its color temperature value is about 6000K.The white light W2 position of Fig. 2 B approaches the white light position of naked eyes, is commonly referred to as neutral white light (Neutral White).Its color temperature value is about 4200K.The white light W3 position of Fig. 2 C approaches the position of ruddiness, is commonly referred to as warm white (Warm White).Its color temperature value is about 3700K.

The white light W1 that the first white light of step S10 or the second white light can be illustrated for Fig. 2 A, Fig. 2 B and Fig. 2 C, W2, wherein two kinds of W3, but not as limit.

Described in step S10, a plurality of white light LEDs of modulation refer to two of modulations or two above white light LEDs at least to produce the first white light and the second white light.If only there are two white light LEDs, it produces respectively the first white light and the second white light.If there are three white light LEDs with different chromaticity coordinates, will produce three kinds of white lights.May be namely three kinds of white light W1 as shown in Fig. 2 A, Fig. 2 B and Fig. 2 C, W2, W3.If have two white light LEDs of surpassing by modulation, but all white light LEDs only can produce two kinds of white lights (the first white light or the second white light), also belong to category of the present invention.

Described in step S10, " modulation " a plurality of white light LEDs divide other luminous intensity to produce the parameters such as electric current that modulation in the first white light and the second white light can be those white light LEDs of modulation or pulse width with modulation the first white light and the second white light.The electric current of modulation white light LEDs refers to adjustment and supplies with the luminosity that the current strength of white light LEDs is controlled this white light LEDs.The pulse width of modulation white light LEDs refers in pulse width (PWM, the Pulse Width Modulation) mode that modifies tone and drives white light LEDs luminous, by unit of adjustment's total time that in the time, pulse is high level, to control its luminous intensity.It should be noted that aforementioned modulation parameter can be selected one or in conjunction with using, and, aforementioned modulation parameter is only illustration, non-ly be used for limiting modulation mode of the present invention, in all existing this areas, can think and or modulation parameter and the method used, be all the category that the present invention can use means.

The mode of the electric current of aforementioned modulation white light LEDs, pulse width or brightness, first white light that can't produce minute other white light LEDs or spectrum or the chromaticity coordinates of the second white light change, but will change for chromaticity coordinates, colour temperature and the spectrum of the mixed white light of mixing out.

After modulation white light LEDs in step S10, if take, only producing first is example from light and the second white light, please refer to Fig. 3 B.If the chromaticity coordinates of the first white light is W1 in figure, the chromaticity coordinates of the second white light is W2.Therefore,, when the luminous intensity of modulation the first white light and the second white light, the chromaticity coordinates of the mixed light that S12 step mixes out will drop on W1 and W2 online.Thus, reach the object of photochromic modulation.The demand that is adapted to various different applications.In addition,, because the color rendering of the first white light and the second white light is high, therefore, the light that mixes out also has high color rendering.

Referring again to Fig. 3 A, similarly.If S10 step has produced three kinds of white lights (hereinafter referred to as the first white light W1, the second white light W2, the 3rd white light W3).After a plurality of white light LEDs of step S10 modulation, the chromaticity coordinates of the mixed light that step S12 mixes out will drop on Fig. 3 A W1, W2, and the chromaticity coordinates of W3 between (being in graphic triangle).By that analogy, if step S10 has produced four kinds of white lights, the adjustable chromaticity coordinates of mixed light region may be larger, have more elasticity.Also can meet the demand of high color rendering simultaneously.

The chromaticity coordinates of aforementioned the first white light and the second white light is different means that the aberration (Color Difference, Δ E) of the first white light and the second white light is more than or equal to 0.01.Although the white light that same LED chip (or claiming identical material and technique) and same fluorescent material produce is at microcosmic angle, its chromaticity coordinates also some elementary errors is different, if but this same LED chip is applied to step S10, its adjustable photochromic will be very limited, therefore more do not advise adopting.In addition,, although the distance of the chromaticity coordinates of various white lights is relatively far away in Fig. 3 A, the present invention, not as limit, as long as meet the different condition of chromaticity coordinates, should belong to category of the present invention.

" mixing " first white light and the second white light in step S12, be can the irradiation path of the first white light and the second white light is directly overlapping, also can utilize light-conductive media that both are mixed.This light-conductive media can be but be not limited to lens and photoconductive tube.In addition, also can utilize reflecting surface by its reflection and superimposed.

Refer to Fig. 4, it is the schematic flow sheet according to photochromic modulator approach the first embodiment step S10 of the present invention.Step S10 comprises S100: one of those white light LEDs of modulation are to produce this first white light; And S118: another of those white light LEDs of modulation is to produce this second white light.

Continuous please refer to Fig. 5 and read it.It is the schematic flow sheet for the first embodiment according to the photochromic modulator approach step of the present invention S100.The first embodiment of step S100 comprises S101: excite a blue-light LED chip to produce a blue light; S102: make this blue light by a fluorescence coating to produce respectively a green glow and a ruddiness; And S103: mix this green glow, this ruddiness and this blue light and produce this first white light.

In the first embodiment of this step S100, about how making blue light pass through the content that fluorescence coating produces ruddiness and green glow, be detailed later.

The spectrum of the white light that step S103 mixing ruddiness, green glow and blue light produce may be similar to the white light of Fig. 2 A, Fig. 2 B and Fig. 2 C.

Please refer to Fig. 6.It is the schematic flow sheet for the second embodiment according to the photochromic modulator approach step of the present invention S100.The second embodiment of step S100 comprises: S105: excite a blue-light LED chip to produce a blue light; S106: make this blue light by a fluorescence coating to produce respectively a gold-tinted and a ruddiness; And S107: mix this gold-tinted, this ruddiness and this blue light and produce this first white light.

The first white light that the second embodiment of this step S100 mixes is comparatively obvious in gold-tinted part, green glow a little less than.But this situation also can change by material, structure and the composition of suitable modulation fluorescence coating.

Refer to Fig. 7.It is the schematic flow sheet according to the 3rd embodiment of the photochromic modulator approach step of the present invention S100.The 3rd embodiment of step S100 comprises: S109: excite a blue-light LED chip to produce a blue light; S110: make this blue light by a fluorescence coating to produce respectively a gold-tinted, a green glow and a ruddiness; And S111: mix this gold-tinted, this green glow, this ruddiness and this blue light and produce this first white light.

The mixing of the 3rd embodiment gained of step S100 is photochromic has four main monochromatic light (gold-tinted, green glow, ruddiness and blue light), therefore, only needs suitably to allocate each monochromatic ratio, and mixed light can obtain preferably color rendering.

Refer to Fig. 8.It is the schematic flow sheet according to the 4th embodiment of the photochromic modulator approach step of the present invention S100.The 4th embodiment of step S100 comprises: S113: excite ultraviolet light (Ultraviolet, a UV) LED chip to produce a ultraviolet light; S114: make this ultraviolet light by a fluorescence coating with produce respectively blue light, a green glow, with a ruddiness; And S115: mix this green glow, this ruddiness and this blue light and produce this first white light.

The 4th embodiment of this S100 and the difference of the first to three embodiment are that the 4th embodiment is used ultraviolet light to pass through fluorescence coating, but not use blue light to pass through fluorescence coating.The material of the fluorescence coating of these four embodiment is not identical completely, and meanwhile, the various monochromatic characteristic that four embodiment produce is not identical yet, is hereby described as follows:

The centre wavelength of the blue light that blue-light LED chip sends using about the first to three embodiment of step S100 can be in 440-490 nanometer.

Aforementioned fluorescence coating can comprise a leaded light glue material and be dispersed in the fluorescent material in leaded light glue material.Aforementioned fluorescent material being produced the light of specific wavelength after blue-light excited, for example, produces the light of green wavelength, yellow wavelengths or red wavelength.

About aforementioned, in order to produce the material of the fluorescent material of specific wavelength, please refer to following table.Though the material following table of this fluorescent material is as for example, not as limit.

Photochromic	Fluorescent material material
		Blue light	(Ba，Sr，Ca) ₅(PO4) ₃(Cl，F，Br，OH):Eu ²⁺，Mn ²⁺，Sb ³⁺

	(Ba，Sr，Ca)MgAl ₁₀O ₁₇:Eu ²⁺，Mn ²⁺ (Ba，Sr，Ca)BPO ₅:Eu ²⁺，Mn ²⁺ (Sr，Ca) ₁₀(PO4) ₆nB ₂O ₃:Eu ²⁺ 2SrO0.84P ₂O ₅0.16BxO ₃:Eu ²⁺ Sr ₂Si ₃O _82SrCl ₂:Eu ²⁺ Ba ₃MgSi ₂O ₈:Eu ²⁺ Sr ₄Al ₁₄O ₂₅:Eu ²⁺(SAE) BaAl ₈O ₁₃:Eu ²⁺
		Blue green light	Sr ₄Al ₁₄O ₂₅:Eu ²⁺ BaAl ₈O ₁₃:Eu ²⁺ 2SrO-0.84P ₂O _5～0.15B ₂O ₃:Eu ²⁺ (Ba，Sr，Ca)MgAl ₁₀O ₁₇:Eu ²⁺，Mn ²⁺ (Ba，Sr，Ca) ₅(PO ₄) ₃(Cl，F，OH):Eu ²⁺，Mn ²⁺，Sb ³⁺
Green glow	(Ba，Sr，Ca)MgAl ₁₀O ₁₇:Eu ²⁺，Mn ²⁺(BaMn) (Ba，Sr，Ca)Al ₂O ₄:Eu ²⁺ (Y，Gd，Lu，Sc，La)BO ₃:Ce ³⁺，Tb ³⁺ Ca8Mg(SiO ₄) ₄Cl ₂:Eu ²⁺，Mn ²⁺ (Ba，Sr，Ca)2SiO ₄:Eu ²⁺ (Ba，Sr，Ca) ₂(Mg，Zn)Si ₂O ₇:Eu ²⁺ (Sr，Ca，Ba)(Al，Ga，In) ₂S ₄:Eu ²⁺ (Y，Gd，Tb，La，Sm，Pr，Lu) ₃(Al，Ga) ₅O ₁₂:Ce ³⁺ (Ca，Sr) ₈(Mg，Zn)(Si(r) ₄Cl ₂:Eu ²⁺，Mn ²⁺(CASI) Na ₂Gd ₂B ₂O ₇:Ce ³⁺，Tb ³⁺ (Ba，Sr) ₂(Ca，Mg，Zn)B ₂O ₆:K，Ce，Tb
		Yellow tangerine light	(Sr，Ca，Ba，Mg，Zn) ₂P ₂O ₇:Eu ²⁺，Mn ²⁺(SPP) (Ca，Sr，Ba，Mg) ₁₀(PO ₄) ₆(F，Cl，Br，OH):Eu ²⁺，Mn ²⁺(HALO) ((Y，Lu，Gd，Tb) _1-xSc _xCe _y) ₂(Ca，Mg) _1-r(Mg，Zn) _2+rSi _z-qGe _qO _12+δ
Ruddiness	(Gd，Y，Lu，La) ₂O ₃:Eu ³⁺，Bi ³⁺ (Gd，Y，Lu，La) ₂O ₂S:Eu ³⁺，Bi ³⁺ (Gd，Y，Lu，La)VO ₄:Eu ³⁺，Bi ³⁺

(Ca，Sr)S:Eu ²⁺，Ce ³⁺ SrY ₂S ₄:Eu ²⁺，Ce ³⁺ CaLa ₂S ₄:Ce ³⁺ (Ca，Sr)S:Eu ²⁺ 3.5MgO*0.5MgF ₂*GeO ₂:Mn ⁴⁺(MFG) (Ba，Sr，Ca)MgP ₂O ₇:Eu ²⁺，Mn ²⁺ (Y，Lu) ₂WO ₆:Eu ³⁺，Mo ⁶⁺ (Ba，Sr，Ca) _xSi _yN _z:Eu ²⁺，Ce ³⁺ (Ba，Sr，Ca，Mg) ₃(Zn，Mg)Si ₂O ₈:Eu ²⁺，Mn ²⁺

The fluorescence coating using in step S102 is produced green glow and ruddiness, represents and in this fluorescence coating, has the first fluorescent material and the second fluorescent material.Wherein the first fluorescent material is the above-mentioned fluorescent material that is produced green glow by meeting after blue-light excited.The second fluorescent material is the above-mentioned fluorescent material that is produced ruddiness by meeting after blue-light excited.The first fluorescent material and the second fluorescent material ratio (for example percentage by weight) in fluorescence coating can suitably be allocated, to obtain chromaticity coordinates and the color rendering of the first required white light.For example, if the first fluorescent material with respect to the ratio of whole fluorescence coating higher than the second fluorescent material, the green glow of the white light LEDs that produces will be more than ruddiness.

The percentage by weight that different fluorescent material in above-described embodiment account for whole fluorescence coating is not limited to a specific ratio, but depending on the required chromaticity coordinates of user and color rendering and adjust.Even if it is identical that the percentage by weight of the fluorescent material in two white light LEDs is set for, but also likely because the position of each fluorescent material place fluorescence coating is different, and the chromaticity coordinates that makes the light that these two white light LEDs send difference to some extent.For example: if the first fluorescent material is the same with the ratio of the second fluorescent material, but the first fluorescent material of the first white light LEDs is positioned near the main output optical zone (also can weigh up light optical axis position) of blue-light LED chip mostly, the first fluorescent material position of the second white light LEDs is away from the main output optical zone of blue-light LED chip, thus, the first fluorescent material of the first white light LEDs can be excited by more blue light, the second fluorescent material of the second white light LEDs only can be excited by less blue light, therefore, though the ratio of the fluorescent material of the first white light LEDs and the second white light LEDs is close, but the first white light producing is not quite similar.

Described " modulation " a plurality of white light LEDs of abovementioned steps S10 can be separately colour temperature, chromaticity coordinates or the optical spectrum of those white light LEDs of modulation with " modulation " producing in the first white light and the second white light, to produce the first white light or second white light of different chromaticity coordinates, different color renderings.Its colour temperature of modulation, chromaticity coordinates or spectral method are with the ratio of fluorescent material in its fluorescence coating of aforementioned adjustment or position, distribution scenario etc.

The spectral region of aforementioned the first white light and the second white light at 400nm between 850nm.And the first white light LEDs and the second white light LEDs are in respectively by the scope of modulation, and the first white light that it produces and the variation of the colour temperature of the second white light are less than respectively 200K.

The material of the corresponding fluorescence coating of aforementioned ultraviolet light and the fluorescence coating of corresponding blue light is different.The fluorescence coating of the 4th embodiment of step S100 comprises a leaded light colloid and the fluorescent material that intersperses among this leaded light colloid.The material of this fluorescent material is asked for an interview in upper table, therefore repeat no more.Wherein adopt the first fluorescent material, the second fluorescent material, the 3rd fluorescent material to produce ruddiness, green glow and blue light after by ultraviolet excitation.The ratio that the aforementioned fluorescent material for ultraviolet light accounts for whole fluorescence coating is visual required and modulation also, to obtain predetermined chromaticity coordinates, colour temperature, color rendering or spectrum.Modulation mode is the same, repeats no more.

Though first, second and third of abovementioned steps S100 and the 4th embodiment in order to the mode of the first generating white light to be described, also can be applicable to produce and modulation the second white light in step S118.

Though the generation of aforementioned the first white light and the second white light is first sent a monochromatic light with a monochromatic LED chip, afterwards, relending monochromatic light thus carrys out fluorescence excitation layer and produces other photochromic light, again each photochromic mixing is produced, but the producing method of the first white light and the second white light is not limited in the mode of this mixed white light.Aforementioned the first white light and the second white light also can directly be produced by modulation by White-light LED chip.

Then, please refer to Fig. 9.It is the first additional schematic flow sheet according to photochromic modulator approach the first embodiment of the present invention.The first embodiment of aforementioned photochromic modulator approach separately can comprise S14: at least one wide spectrum monochromatic LED of modulation is to produce at least one wide spectrum monochromatic light; And S16: mix this at least one wide spectrum monochromatic light, this first white light and the second white light.

Refer to Figure 10.Step S14 comprises S140 and produces a ultraviolet light; And S142: make this ultraviolet light by a fluorescence coating to produce this at least one wide spectrum monochromatic light.

The ultraviolet light that step S140 produces is the ultraviolet light for producing via modulation UV LED chip.This ultraviolet light, by only having the fluorescence coating of monochromatic fluorescent material, can produce wide spectrum monochromatic light.The monochromatic fluorescent material of step S142 can for but be not limited to fluorescent material described in the 4th embodiment of abovementioned steps S100.

The wide spectrum monochromatic light of step S14 also can be produced by the combination of a blue chip and a fluorescence coating.For example, be fully scattered with the fluorescent material that can produce gold-tinted in fluorescence coating, the blue light that this blue chip sends is completely changed to be absorbed and can be produced gold-tinted after fluorescence coating, and this gold-tinted can be used as the wide spectrum monochromatic light of step S14.Lift again an example, if the YaG composition in fluorescence coating is increased, making the blue light that blue chip sends is fully YaG absorption, can reach the wide spectrum monochromatic light that forms step S14 with blue chip, though this kind of wide spectrum monochromatic light can be seen two peak values on its spectrogram, but finding of naked eye belongs to gold-tinted, also belong to the wide spectrum monochromatic light of step S14.

The continuous Figure 11 that please refer to.The first embodiment of aforementioned photochromic modulator approach separately can comprise S18: modulation one monochromatic LED is to produce a monochromatic light; And S19: mix this monochromatic light, this first white light and the second white light.The monochromatic LED of step S18 refers to that modulation monochromatic LED chip is to produce this monochromatic light.This monochromatic LED chip can be but be not limited to red LED chip, blue-light LED chip or green light LED chip.

This monochromatic light is not identical with aforementioned wide spectrum monochromatic light.This monochromatic light refers to the monochromatic light that is directly excited monochromatic LED chip (modulation) send.Red LED chip, blue-light LED chip, green light LED chip the produced light that is excited for example.Wide spectrum monochromatic light refers to the wide spectrum monochromatic light (monochromatic light that comprises monochromatic LED chip and the light being excited) that the ultraviolet light that UV LED chip excited and produce produces by fluorescence coating.Therefore, the centre wavelength scope of wide spectrum monochromatic LED is between 400 nanometer to 850 nanometers.The monochromatic half-wave of wide spectrum wide (FWHM, Full Width At Half Maximum) can be to be more than or equal to 20 nanometers, is preferably and is more than or equal to 25 nanometers, best for being more than or equal to 30 nanometers.Relatively, wide 10 nanometers that are about of monochromatic half-wave.Therefore, by above-mentioned monochromatic light or wide spectrum monochromatic light, mix with first and second white light, can make can the chromaticity coordinates of modulation, the scope of colour temperature increases, increase photochromic adjustable elasticity and space.

In addition, due to above-mentioned wide spectrum monochromatic light, to have larger half-wave wide, therefore, when mixing with the second white light with the first white light, can make the continuity of its spectrum increase, and improves color rendering.

Photochromic modulator approach the second embodiment

Secondly, the second embodiment according to the photochromic modulator approach of the present invention, please refer to Figure 12.The second embodiment of photochromic modulator approach comprises: S20: a plurality of wide spectrum monochromatic LEDs of modulation are to produce at least one the first wide spectrum monochromatic light and one second wide spectrum monochromatic light; And S22: mix this first wide spectrum monochromatic light and this second wide spectrum monochromatic light.Wherein the first wide spectrum monochromatic light and the monochromatic half-wave of the second wide spectrum are wider than or equal 20 nanometers (nm) and the monochromatic chromaticity coordinates of first and second wide spectrum is different.

The mode of " modulation " a plurality of wide spectrum monochromatic LEDs of step S20 is identical with above stated specification, the electric current that comprises modulation wide spectrum monochromatic LED, pulse width, frequency spectrum, colour temperature or brightness.First and second wide spectrum monochromatic light via modulation and mixed light after, can obtain chromaticity coordinates on the monochromatic respectively chromaticity coordinates of first and second wide spectrum online.In addition because the wide more general monochromatic half-wave of the monochromatic half-wave of wide spectrum is wide, be large, therefore the spectral continuity after modulation and color rendering are also better.

The step of a plurality of wide spectrum monochromatic LEDs of modulation of S20 also can produce three kinds of wide spectrum monochromatic light (meaning produces first, second and third wide spectrum monochromatic light).And wide 20 nanometers and its chromaticity coordinates difference of being all more than or equal to of these three kinds of monochromatic half-waves of wide spectrum.Therefore,, by a plurality of wide spectrum monochromatic LEDs of modulation and after mixed light, the chromaticity coordinates of this mixed light can be by suitable being adjusted between the monochromatic chromaticity coordinates of first, second and third wide spectrum.

Refer to Figure 13, it is to be the schematic flow sheet according to the photochromic modulator approach step of the present invention S20.The step of a plurality of wide spectrum monochromatic LEDs of step S20 modulation comprises S200: one of those wide spectrum monochromatic LEDs of modulation are to produce this first wide spectrum monochromatic light; And S202: another of those wide spectrum monochromatic LEDs of modulation is to produce this second wide spectrum monochromatic light.

Step S200 is identical with abovementioned steps S14 with the embodiment of S202, therefore repeat no more.

Above-described embodiment utilizes the photochromic wideband spectrum monochromatic light of two or more differences, by changing the different photochromic modes such as the monochromatic brightness of wideband spectrum, electric current, frequency spectrum, colour temperature or coordinate, modulate between the photochromic wideband spectrum monochromatic light of difference and enclose photochromic in coordinate range, reach photochromic variable LEDs light-source system.

The wideband spectrum monochromatic light that this embodiment is used reaches wideband spectrum monochromatic light for UVLED excites monochromatic light fluorescent material (R, G, B powder), and spectrum width can be adjusted by the selection of fluorescent material, while utilizing electric current to arrange luminosity, because UV LED itself does not participate in mixed light, so when utilizing electric current to arrange wideband spectrum monochromatic light luminous intensity, can't cause because of the generation of electric current or heat the drift of emission wavelength, the problem that can exempt emission wavelength drift.

Photochromic variable LED light-source module the first embodiment

Moreover, please coordinate Figure 14 to read it.It is the structural representation of photochromic variable LED light source module the first embodiment.

Photochromic variable LED light source module 60 comprises one first white light LEDs 62, one second white light LEDs 64 and a control module 66.

The first white light LEDs 62 is excited to produce the first white light.The color rendering of this first white light is greater than 85.The second white light LEDs 64 is excited to produce the second white light.The second white light mixes with the first white light.The color rendering of the second white light is greater than 85.The chromaticity coordinates of the first white light is different from the chromaticity coordinates of the second white light.Control module 66 is respectively in order to excite the first white light LEDs 62 and this second white light LEDs 64.

The first white light LEDs 62 comprises a substrate 620, a blue-light LED chip 622 and a fluorescence coating 624.Substrate 620 has a carrying cup 621.Blue-light LED chip 622 is configured in carrying cup 621 and in order to be excited to produce blue light.This blue light, from blue-light LED chip 622 sends, penetrates fluorescence coating 624.

Fluorescence coating 624 comprises a leaded light colloid 625, one first fluorescent material 626 and one second fluorescent material 627.Leaded light colloid 625 is to penetrate for blue light.Within the first fluorescent material 626 and the second fluorescent material 627 are dispersed in leaded light colloid 625.The first fluorescent material 626, after blue-light excited, can produce green glow.The second fluorescent material 627, after blue-light excited, can produce ruddiness.Therefore, blue light excites the first fluorescent material 626 and the second fluorescent material 627 after by fluorescence coating 624 and produces respectively a green glow, ruddiness.With after blue light this green glow, ruddiness form aforementioned the first white light.

Aforesaid substrate 620 can be a lead frame.

The second white light LEDs 64 comprises a substrate 640, a blue-light LED chip 642 and a fluorescence coating 644.Substrate 640 has a carrying cup 641.Blue-light LED chip 642 is configured in carrying cup 641 and produces blue light and penetrate in fluorescence coating 644 in order to being excited.

The fluorescence coating 644 of the second white light LEDs 64 is similar to the fluorescence coating 624 of the first white light LEDs 62.Difference is the first fluorescent material 646 of the second white light LEDs 64 and material, the percentage by weight of the second fluorescent material 647 or intersperses among the mode of leaded light colloid 645 and material, the percentage by weight of the first fluorescent material 626 of the first white light LEDs 62 and the second fluorescent material 627 or to intersperse among leaded light colloid 625 different at least partly.For example: the blue light that the material of first and second fluorescent material 646,647 of the second white light LEDs 64 can produce at blue chip 642 produces gold-tinted and ruddiness through after fluorescence coating 644.Gold-tinted, ruddiness after mixing, produce the second white light with blue light.Therefore, the chromaticity coordinates of this second white light is different with the chromaticity coordinates of the first white light.

Although the first white light LEDs 62 and the second white light LEDs 64 are for example as above, not as limit.Any color rendering that can produce is greater than 85 white light and all belongs to category of the present invention.For example, if by the selected material of the fluorescence coating of the first white light LEDs 62, after blue chip excites, can produce gold-tinted, green glow and ruddiness, after mixing, color rendering can be greater than 85, also can reach object of the present invention.

Aforementioned the first white light is to reach by the rising angle of adjusting the first white light LEDs 62 and the second white light LEDs 64 with the second white light " mixing ".Or can complete by reflector, leaded light component (as photoconductive tube) or lens.

The first white light LEDs 62 shown in Figure 14 and the second white light LEDs 64 are that two assemblies that are separated from each other represent, but mode that also can an independent assembly is implemented.For example, by aforementioned blue-light LED chip 622,642 are separately positioned on same substrate and cover respectively its corresponding fluorescence coating 624,644, in other words, with at least two chips, be positioned at single packaging body, continuous by control module, through logical operation, provide respectively different electric current or pulse width or electric current and pulse width to change the luminous intensity of the first white light or the second white light, reach different chromaticity coordinates; Or by the selecting of fluorescent material material in corresponding fluorescence coating, percentage by weight and be distributed in the position of light-conductive media, change its colour temperature, chromaticity coordinates and frequency spectrum, reach different chromaticity coordinates, then mix this first white light and this second white light, also can reach effect of the present invention.

With actual design result, can make it is that four chips are positioned at same packaging body, wherein, chip kind can be blue chip or UV chip, chip emitted light excites the fluorescent material in corresponding fluorescence coating, can form one first different white light of colour temperature, one second white light, one the 3rd white light, a Sibai light, wherein, having selected as above-mentioned, therefore do not repeat of fluorescent material material.Or, also can make chip emitted light excite the fluorescent material in corresponding fluorescence coating, can form one first different ruddiness of colour temperature, one second ruddiness, a green glow, a blue light, those light are mixed and reach the effect that colour temperature can modulation; Or make chip emitted light excite the fluorescent material in corresponding fluorescence coating, can form one first different green glow of colour temperature, one second green glow, a blue light, a ruddiness, those light are mixed and reach the effect that colour temperature can modulation; Or make chip emitted light excite the fluorescent material in corresponding fluorescence coating, can form the different ruddiness of colour temperature, a green glow, a blue light and a white light, those light are mixed and reach the effect that colour temperature can modulation.

Aforementioned control module 66 is to provide respectively to drive the required electric energy of blue-light LED chip 642,622.For example the exportable successional DC current of control module 66 is to the size of blue-light LED chip 642,622 control difference electric current, to reach the object of modulation.Or the electric current that control module 66 output pulse widths modify tone, to blue-light LED chip 642,622, with the luminosity of suitable control the first white light and the second white light, and obtains predetermined chromaticity coordinates, colour temperature or color rendering.

Photochromic variable LED light-source module the second embodiment

Refer to Figure 15, it is the structural representation according to photochromic variable LED light source module the second embodiment of the present invention.In figure, can see that photochromic variable LED light source module 70 comprises the first white light LEDs 72, the second white light LEDs 74, wide spectrum monochromatic LED 78 and control module 76.

Framework and the first embodiment of the second embodiment of this photochromic variable LED light source module are similar, difference be the thin portion structure of (a) first white light LEDs 72 and the second white light LEDs 74 and (b) the second embodiment increased a wide spectrum monochromatic LED 78.

The first white light LEDs 72 of the second embodiment comprises substrate 720, blue-light LED chip 722 and fluorescence coating 724.Fluorescence coating 724 comprises leaded light colloid 728, the first fluorescent material 725, the second fluorescent material 726 and the 3rd fluorescent material 727.Blue-light LED chip 722 sends blue light after controlled unit 76 excites.This blue light, by after fluorescence coating 724, excites respectively first, second, third fluorescent material 725,726,727 and generation ruddiness, gold-tinted and green glow.This ruddiness, gold-tinted, green glow, with blue light after produce the first white light.

About having been described above by blue-light excited and produce the material of the fluorescent material 725,726,727 of ruddiness, gold-tinted and green glow, repeat no more.

The second white light LEDs 74 comprises substrate 740, UV LED chip 742 and fluorescence coating 744.This fluorescence coating 744 includes leaded light colloid 748, the first fluorescent material 745, the second fluorescent material 746 and the 3rd fluorescent material 747.UV LED chip 742 controlled units 76 excite and produce ultraviolet light.This ultraviolet light has excited respectively first, second and third fluorescent material 745,746,747 by 744 of fluorescence coatings and has produced ruddiness, green glow and blue light.Ruddiness, green glow and blue light, after mixed light, produce the second white light.

Control module 76 is by suitable modulation the first white light LEDs 72 and the second white light LEDs 74, the i.e. chromaticity coordinates of capable of regulating mixed light and color rendering.The method of mixed light, principle are because of identical with the embodiment of above-mentioned photochromic modulator approach, therefore do not add and repeat at this.

And wide spectrum monochromatic LED in this second embodiment comprises substrate 780, UV LED chip 782 and fluorescence coating 784.Fluorescence coating 784 comprises leaded light colloid 786 and the 4th fluorescent material 785.This 4th fluorescent material 785 excites and sends a wide spectrum monochromatic light at the ultraviolet light by UV LED chip 782 produced.This wide spectrum monochromatic light mix with aforementioned the first white light and the second white light and produce mixed light.Photochromic (chromaticity coordinates), colour temperature or the color rendering of this mixed light can be by the suitable modulation of control module 76 and reached default value.

The material of the 4th fluorescent material is identical with any fluorescent material material of the 4th embodiment of above-mentioned steps S100, repeats no more.

Finally, this second embodiment also can comprise a monochromatic LED in addition, and the material of this monochromatic LED can be same as the monochromatic LED of abovementioned steps S18.Still can reach photochromic variable object.

Photochromic variable LED light-source module the 3rd embodiment

Then, refer to Figure 16, it is the structural representation according to photochromic variable LED light source module the 3rd embodiment of the present invention.This photochromic variable LED light source module 80 comprises one first wide spectrum monochromatic LED 82, one second wide spectrum monochromatic LED 84 and a control module 86.

The first wide spectrum monochromatic LED 82 controlled units 86 excite to produce one first wide spectrum monochromatic light.The second wide spectrum monochromatic LED 84 controlled units 86 excite to produce one second wide spectrum monochromatic light, and this second wide spectrum monochromatic light mixes with this first wide spectrum monochromatic light.

The first wide spectrum monochromatic LED 82 comprises a substrate 820, a UV LED chip 822 and one first fluorescence coating 824.The first fluorescence coating 824 comprises leaded light colloid 825 and the first fluorescent material 826.This first fluorescent material 826 can produce the first wide spectrum monochromatic light after the ultraviolet light being sent by UV LED chip 822 excites.

The UV LED chip 842 of the second wide spectrum monochromatic LED 84 is configured on substrate 840.The second fluorescence coating 844 comprises leaded light colloid 845 and the second fluorescent material 846.The ultraviolet light that UV LED chip 842 produces can produce the second wide spectrum monochromatic light by the second fluorescent material 846 of the second fluorescence coating 844.The monochromatic chromaticity coordinates of this second wide spectrum and the monochromatic chromaticity coordinates of the first wide spectrum are different.Therefore, when control module 86, distinguish first and second wide spectrum monochromatic LED of

modulation

82,84 o'clock, the chromaticity coordinates of mixed light will drop on the online of first and second wide spectrum monochromatic light chromaticity coordinates.

The monochromatic half-wave of aforementioned first, second wide spectrum is wider than or equals 20 nanometers, is preferably and is more than or equal to 25 nanometers, best for being more than or equal to 30 nanometers.The monochromatic centre wavelength scope of first, second wide spectrum is between 400 nanometer to 850 nanometers.Therefore the color rendering of mixed light will be better than prior art.

The material of aforementioned first and second fluorescent material 826,846 can be selected any fluorescent material material of the 4th embodiment that as above states step S100, therefore repeat no more.

The ultraviolet light that aforementioned UV LED chip 742,782,822,842 produces can be but be not limited to ultraviolet light, black light or DUV.

The 4th of photochromic variable LED light-source module is implemented example

Please coordinate Figure 17 to read it.Figure 17 is the structural representation that the photochromic variable LED light-source module the 4th of the present invention is implemented example.The embodiment of above-mentioned Figure 14, Figure 15 and Figure 16 places the mode that encapsulates after a luminescence chip for it on single substrate, and Figure 17 is disposed at by a plurality of luminescence chips the practical range encapsulating again on single substrate (or claiming support plate).From Figure 17, can see and know, this embodiment comprises substrate 52, the first monochromatic LED chip 520, the second monochromatic LED chip 522, the 3rd monochromatic LED chip 524, the 4th monochromatic LED chip 526 and control module 56.In first, second, third and fourth monochromatic LED chip 520,522,524,526 tops, optionally make to there is respectively fluorescence coating (due to visual angle relation, therefore be not numbered sign).And in this fluorescence coating, separately there is at least one aforesaid fluorescent material (due to visual angle relation, therefore be not numbered sign).Illustrate, the monochromatic light that aforementioned first, second, third and fourth monochromatic LED chip 520,522,524,526 sends (can be visible ray or UV light) produces the adjustable white light of colour temperature after can and mixing through fluorescence coating.

The monochromatic light that aforementioned first, second, third and fourth monochromatic LED chip 520,522,524,526 sends (can be visible ray or UV light) optionally, after fluorescence coating, produces respectively four kinds of light.These four kinds of light can have multiple combination, depending on monochromatic LED chip 520,522,524,526 and fluorescence coating in fluorescent material selection and determine.Illustrate, these four kinds of light can be but be not limited to (A) four kinds of aforementioned white lights, (B) first ruddiness, the second ruddiness, green glow and blue light, (C) ruddiness, the first green glow, the second green glow and blue light, (D) ruddiness, green glow, blue light and white light.

About the aforementioned monochromatic LED chip 520,522,524,526 of How to choose and fluorescent material, owing to addressing above, no longer repeat.

In addition, in Figure 17, can see and know, this first, second, third and fourth monochromatic LED chip 520,522,524,526 configures with array way, but not as limit, also can adopt one-dimensional array, ring-type or other any shape mode to configure or arrange.

The enforcement example of photochromic variable LED light-source module application

Finally, refer to Figure 18.It is in the structural representation of light fixture according to the photochromic variable LED light source module application of the present invention.This light fixture 40 comprises a lamp body 42 and photochromic variable LED light source module 44a, 44b.Light fixture 40 can be fixed lamp or moveable lamps and lanterns.And fixed lamp also can be indoor fixed lamp or outdoor fixed lamp.Indoor fixed lamp can be but be not limited to embedded lamp, lamp affixed to the ceiling, projecting lamp or wall lamp.Outdoor fixed lamp can be but be not limited to projecting lamp, floor-lamp or wall lamp.Moveable lamps and lanterns can be flashlight or illuminating lamp.

Aforementioned photochromic variable LED

light source module

44a, 44b can adopt above-mentioned first, second, third or the light source module of the 4th embodiment.In brief, can adopt two hybrid-type photochromic variable LED light source module 44a of white light, 44b, or two wide spectrum monochromatic light mixes or at least one wide spectrum monochromatic light is added the mixing of white light.In addition, although adopt a plurality of photochromic variable LED light source module 44a in Figure 18,44b is arranged in a lamp body 42, not as limit, can only adopt one, two photochromic variable LED light source modules, depending on the demand of practical application during practical application.

Certainly; the present invention also can have other various embodiments; in the situation that not deviating from spirit of the present invention and essence thereof; those of ordinary skill in the art are when making according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.

Claims

1. a photochromic modulator approach, is characterized in that, the method comprises:

A plurality of white light LEDs of modulation are to produce at least one the first white light and one second white light, and the color rendering of this first white light and this second white light is more than or equal to 85, and the chromaticity coordinates of this first white light is different from the chromaticity coordinates of this second white light; And

Mix this first white light and this second white light,

The optical spectrum of this first white light and this second white light has three main peak values.

2. modulator approach according to claim 1, is characterized in that, a plurality of white light LEDs of described modulation be take and produced at least one of electric current that the step of at least one the first white light and one second white light is those white light LEDs of modulation or pulse width parameter.

3. modulator approach according to claim 1, is characterized in that, the aberration of this first white light and this second white light is greater than 0.01.

4. modulator approach according to claim 1, is characterized in that, the color rendering of this first white light or this second white light is greater than 95.

5. modulator approach according to claim 1, is characterized in that, a plurality of white light LEDs of described modulation comprise to produce the step of at least one the first white light and one second white light:

One of those white light LEDs of modulation are to produce this first white light; And

Another of those white light LEDs of modulation is to produce this second white light.

6. modulator approach according to claim 5, is characterized in that, one of described those white light LEDs of modulation comprise to produce the step of this first white light:

Excite a blue-light LED chip to produce a blue light;

Make this blue light by a fluorescence coating to produce respectively a green glow and a ruddiness; And

Mix this green glow, this ruddiness and this blue light to produce this first white light.

7. modulator approach according to claim 5, is characterized in that, one of described those white light LEDs of modulation comprise to produce the step of this first white light:

Excite a blue-light LED chip to produce a blue light;

Make this blue light by a fluorescence coating to produce respectively a gold-tinted and a ruddiness; And

Mix this gold-tinted, this ruddiness and this blue light to produce this first white light.

8. modulator approach according to claim 5, is characterized in that, one of described those white light LEDs of modulation comprise to produce the step of this first white light:

Excite a blue-light LED chip to produce a blue light;

Make this blue light by a fluorescence coating to produce respectively a gold-tinted, a green glow and a ruddiness; And

Mix this gold-tinted, this green glow, this ruddiness and this blue light to produce this first white light.

9. modulator approach according to claim 5, is characterized in that, one of described those white light LEDs of modulation comprise to produce the step of this first white light:

Excite a ultraviolet leds chip to produce a ultraviolet light;

Make this ultraviolet light by a fluorescence coating with produce respectively blue light, a green glow, with a ruddiness; And

10. modulator approach according to claim 5, is characterized in that, another of described those white light LEDs of modulation comprises to produce the step of this second white light:

Excite a blue-light LED chip to produce a blue light;

Mix this green glow, this ruddiness and this blue light to produce this second white light.

11. modulator approaches according to claim 5, is characterized in that, another of described those white light LEDs of modulation comprises to produce the step of this second white light:

Excite a blue-light LED chip to produce a blue light;

Mix this gold-tinted, this ruddiness and this blue light to produce this second white light.

12. modulator approaches according to claim 5, is characterized in that, another of described those white light LEDs of modulation comprises to produce the step of this second white light:

Excite a blue-light LED chip to produce a blue light;

Mix this gold-tinted, this green glow, this ruddiness and this blue light to produce this second white light.

13. modulator approaches according to claim 5, is characterized in that, another of described those white light LEDs of modulation comprises to produce the step of this second white light:

Excite a ultraviolet leds chip to produce a ultraviolet light;

14. modulator approaches according to claim 1, is characterized in that, separately comprise:

At least one wide spectrum monochromatic LED of modulation is to produce at least one wide spectrum monochromatic light; And

Mix this at least one wide spectrum monochromatic light, this first white light and the second white light.

15. modulator approaches according to claim 14, is characterized in that, the monochromatic step of at least one wide spectrum of described generation comprises:

Produce a ultraviolet light; And

Make this ultraviolet light by a fluorescence coating to produce this at least one wide spectrum monochromatic light.

16. modulator approaches according to claim 1, is characterized in that, separately comprise:

Modulation one monochromatic LED is to produce a monochromatic light; And

Mix this monochromatic light, this first white light and the second white light.

17. 1 kinds of photochromic modulator approaches, is characterized in that, comprise:

A plurality of wide spectrum monochromatic LEDs of modulation are to produce at least one the first wide spectrum monochromatic light and one second wide spectrum monochromatic light, this the first wide spectrum monochromatic light and the monochromatic half-wave of this second wide spectrum are wider than or equal 20 nanometers, and the monochromatic chromaticity coordinates of this first wide spectrum is different from the monochromatic chromaticity coordinates of this second wide spectrum; And

Mix this first wide spectrum monochromatic light and this second wide spectrum monochromatic light.

18. modulator approaches according to claim 17, it is characterized in that, a plurality of wide spectrum monochromatic LEDs of described modulation be take and produced at least one of electric current that at least one the first wide spectrum monochromatic light and the monochromatic step of one second wide spectrum are those wide spectrum monochromatic LEDs of modulation or pulse width parameter.

19. modulator approaches according to claim 17, is characterized in that, this first wide spectrum monochromatic light or the monochromatic half-wave of this second wide spectrum are wider than or equal 25 nanometers.

20. modulator approaches according to claim 17, is characterized in that, a plurality of wide spectrum monochromatic LEDs of described modulation are to produce at least one the first wide spectrum monochromatic light and the monochromatic step of one second wide spectrum comprises:

One of those wide spectrum monochromatic LEDs of modulation are to produce this first wide spectrum monochromatic light; And

Another of those wide spectrum monochromatic LEDs of modulation is to produce this second wide spectrum monochromatic light.

21. modulator approaches according to claim 20, is characterized in that, one of those wide spectrum monochromatic LEDs of described modulation comprise to produce the monochromatic step of this first wide spectrum:

Produce a ultraviolet light; And

Make this ultraviolet light by a fluorescence coating to produce this first wide spectrum monochromatic light.

22. modulator approaches according to claim 20, is characterized in that, another of those wide spectrum monochromatic LEDs of described modulation comprises to produce the monochromatic step of this second wide spectrum:

Produce a ultraviolet light; And

Make this ultraviolet light by a fluorescence coating to produce this second wide spectrum monochromatic light.

23. 1 kinds of photochromic variable LED light-source modules, comprise:

One first white light LEDs, is excited to produce one first white light, and the color rendering of this first white light is more than or equal to 85;

One second white light LEDs, is excited to produce one second white light, and the color rendering of this second white light is more than or equal to 85, and the chromaticity coordinates of this first white light is different from the chromaticity coordinates of this second white light; And

One control module, excites respectively this first white light LEDs and this second white light LEDs,

24. light source modules according to claim 23, it is characterized in that, this first white light LEDs comprises a blue-light LED chip and a fluorescence coating, and this fluorescence coating has a plurality of fluorescent material, this blue-light LED chip produces a blue light while being excited, this blue light by this fluorescence coating to send this first white light.

25. light source modules according to claim 24, is characterized in that, this blue light produces respectively a green glow and a ruddiness during by this fluorescence coating, and this green glow, this ruddiness and this blue light produce this first white light.

26. light source modules according to claim 24, is characterized in that, this blue light produces respectively a gold-tinted, green glow and a ruddiness during by this fluorescence coating, and this gold-tinted, this green glow, this ruddiness and this blue light produce this first white light.

27. light source modules according to claim 24, is characterized in that, this blue light produces respectively a gold-tinted and a ruddiness during by this fluorescence coating, and this gold-tinted, this ruddiness and this blue light produce this first white light.

28. light source modules according to claim 23, it is characterized in that, this first white light LEDs comprises a UV LED chip and a fluorescence coating, and this fluorescence coating has a plurality of fluorescent material, this UV LED chip produces a ultraviolet light while being excited, this ultraviolet light by this fluorescence coating to send this first white light.

29. light source modules according to claim 23, is characterized in that, this second white light LEDs comprises a blue-light LED chip and a fluorescence coating, and this blue-light LED chip produces a blue light while being excited, this blue light by this fluorescence coating to send this second white light.

30. light source modules according to claim 23, it is characterized in that, separately comprise at least one wide spectrum monochromatic LED, this wide spectrum monochromatic LED is excited by this control module and produces a wide spectrum monochromatic light, and the monochromatic half-wave of this wide spectrum is wider than or equals 20 nanometers.

31. light source modules according to claim 30, it is characterized in that, this at least one wide spectrum monochromatic LED comprises a UV LED chip and a fluorescence coating, and this UV LED chip produces a ultraviolet light while being excited, and this ultraviolet light is by this fluorescence coating and send this wide spectrum monochromatic light.

32. light source modules according to claim 30, is characterized in that, the monochromatic half-wave of this wide spectrum is wider than or equals 25 nanometers.

33. 1 kinds of photochromic variable LED light-source modules, is characterized in that, comprise:

One first wide spectrum monochromatic LED, is excited to produce one first wide spectrum monochromatic light;

One second wide spectrum monochromatic LED, be excited to produce one second wide spectrum monochromatic light, wherein, the half-wave of this first wide spectrum monochromatic LED and this second wide spectrum monochromatic LED is wider than or equals 20 nanometers, and the monochromatic chromaticity coordinates of this first wide spectrum is different from the monochromatic chromaticity coordinates of this second wide spectrum; And

One control module, excites respectively this first wide spectrum monochromatic LED and this second wide spectrum monochromatic LED.

34. light source modules according to claim 33, it is characterized in that, this the first wide spectrum monochromatic LED comprises a UV LED chip and a fluorescence coating, and this UV LED chip produces a ultraviolet light while being excited, and this ultraviolet light is by this fluorescence coating and send this first wide spectrum monochromatic light.

35. light source modules according to claim 33, it is characterized in that, this the second wide spectrum monochromatic LED comprises a UV LED chip and a fluorescence coating, and this UV LED chip produces a ultraviolet light while being excited, and this ultraviolet light is by this fluorescence coating and send this second wide spectrum monochromatic light.

36. light source modules according to claim 33, is characterized in that, the monochromatic half-wave of this first wide spectrum is wider than or equals 25 nanometers, or the monochromatic half-wave of this second wide spectrum is wider than or equals 25 nanometers.

37. light source modules according to claim 33, is characterized in that, the monochromatic half-wave of this first wide spectrum is wider than or equals 30 nanometers, or the monochromatic half-wave of this second wide spectrum is wider than or equals 30 nanometers.

38. 1 kinds of photochromic variable LED light-source modules, is characterized in that, comprise:

Substrate;

The first monochromatic LED chip, its top has one first fluorescence coating;

The second monochromatic LED chip, its top has one second fluorescence coating;

The 3rd monochromatic LED chip, its top has one the 3rd fluorescence coating;

The 4th monochromatic LED chip, its top has one the 4th fluorescence coating, and this first monochromatic LED chip, the second monochromatic LED chip, the 3rd monochromatic LED chip and the 4th monochromatic LED chip are packaged in this substrate jointly; And

Control module, excite respectively this first monochromatic LED chip, the second monochromatic LED chip, the 3rd monochromatic LED chip and the 4th monochromatic LED chip to send monochromatic light, described monochromatic light is visible ray or UV light, and, the monochromatic light that this first monochromatic LED chip, the second monochromatic LED chip, the 3rd monochromatic LED chip and the 4th monochromatic LED chip send produces four kinds of light through fluorescence coating separately, these four kinds of light are white light or wide spectrum monochromatic light, and, after these four kinds of light mix, produce and there is wide spectrum white light.

39. 1 kinds of light fixtures, is characterized in that, comprise the photochromic variable LED light-source module described in any one in one or more claims 23 to 38.