CN102036435A - Light color toning method and light color variable light-emitting diode light source module - Google Patents
Light color toning method and light color variable light-emitting diode light source module Download PDFInfo
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- CN102036435A CN102036435A CN2009101745078A CN200910174507A CN102036435A CN 102036435 A CN102036435 A CN 102036435A CN 2009101745078 A CN2009101745078 A CN 2009101745078A CN 200910174507 A CN200910174507 A CN 200910174507A CN 102036435 A CN102036435 A CN 102036435A
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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
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 is by the made luminescence component of semi-conducting material LED) to light-emitting diode, 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 indicator light, illumination and backlight fields such as (backlight) at present.
It is wide that general lighting is used all is white light, and because the luminous narrow spectrum of single led chip, and itself can't send white light, thereby, need reach the purpose that produces white light by some skills.The method of present common generation white light has two kinds.A kind of for the blue-light excited fluorescent material that utilizes blue-ray LED to produce produces gold-tinted, after the gold-tinted of this generation and the blue light with the formation white light; Second kind is to use red-light LED, green light LED and blue-ray LED to be mixed into white light simultaneously.
Different photochromic light have different color temperature (Color Temperature is hereinafter to be referred as colour temperature), for example, when light source color temperature when 3000K is following, photochromicly begin to have red partially phenomenon, to the warm sensation of people; When colour temperature surpassed 5000K, color then was partial to blue light, gave the chilly sensation of people.Therefore, the height of light source color temperature changes will influence indoor atmosphere.In order to allow the colour temperature that the user can the controlling chamber intraoral illumination, the photochromic adjustable module of existing LED uses mostly and comes mixed light to obtain photochromic variable led module by red-light LED, green light LED and blue-ray LED.Because the luminous frequency spectrum of monochromatic light LED is generally not wide, belongs to narrow frequency spectrum light source, therefore, the most continuity of white color frequency spectrum that mixed light comes out is not good, so make its color rendering (colorrendering index, CRI) not good.For the application of 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 use existing red-light LED, green light LED and blue-ray LED to come the photochromic method of modulation, can't 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, producing the comparatively continuous light of optical spectrum by this modulator approach, and obtains the white light of high color rendering.
This paper following so-called " more than one ", " more than two ", " more than three ", " at least one " are that tool connects given figure calculating; " 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 (LED) that comprises a plurality of tool high color renderings of modulation is to produce at least the first white light with second white light, mix first white light and second white light more thereafter, the chromaticity coordinates of this first white light and second white light is different, and the color rendering of first white light and second white light is more than or equal to 85, the color rendering that preferable states can make at least one white light is for more than or equal to 90, and optimum can make the color rendering of at least one white light greater than 95.
The step of aforementioned generation first white light and second white light is for exciting blue-light LED chip to produce blue light, continuous make blue light pass through a fluorescence coating, again blue light, ruddiness are mixed afterwards aforementioned first white light of generation or second white light with green glow to produce a green glow and a ruddiness respectively.
Aforementioned the step of blue light by fluorescence coating also can be changed to make blue light by fluorescence coating producing gold-tinted and ruddiness respectively, continuous with gold-tinted, ruddiness and blue light to produce first white light or second white light.In addition, also can make blue light by fluorescence coating to produce green glow, gold-tinted and ruddiness respectively, again with after green glow, gold-tinted, ruddiness and the blue light, produce aforementioned first white light or second white light.
Moreover, the step of aforementioned generation first white light and second white light also can be and excites ultraviolet light (UV, ultraviolet) led chip is to produce ultraviolet light, continuous make ultraviolet light pass through a fluorescence coating to produce a ruddiness, green glow and a blue light respectively, again will be after ruddiness, green glow and the blue light aforementioned first white light of generation or second white light.
Aforementioned lights tone system method comprises the modulation monochromatic LED in addition to produce a monochromatic light, continuous with this monochromatic light, first white light and the second white light mixed light, this monochromatic light is narrow frequency spectrum monochromatic light, or the preferably, this monochromatic light can be wide spectrum monochromatic light, and it can excite monochromatic fluorescent material to form by comprising UV LED; Perhaps, it can excite monochromatic fluorescent material to form by comprising blue-ray LED, and 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 and 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 more than or equal to 25 nanometers, and the best is more than or equal to 30 nanometers, it should be noted that: the value wide when half-wave is big more, and the photochromic spectral continuity that mixing is come out is good more; 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 first embodiment of the photochromic variable led light source module of the present invention, this led light source module comprises first white light LEDs, second white light LEDs and control unit.The first white light LEDs Be Controlled unit excites to produce first white light and its color rendering more than or equal to 85.The second white light LEDs Be Controlled unit excites to produce second white light and to mix with first white light.The color rendering of second white light is more than or equal to 85.The chromaticity coordinates of first white light is different from the chromaticity coordinates of this second white light.
Wherein first white light LEDs and second white light LEDs can be to comprise a blue-light LED chip and a fluorescence coating respectively.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 first white light or second white light.Control unit is by electric current, pulse duration or the electric current of first, second white light LEDs of modulation and pulse duration and adjust the chromaticity coordinates or the color rendering of mixed light.
According to second embodiment of the photochromic variable led light source module of the present invention, it comprises first white light LEDs, second white light LEDs, monochromatic light LED and control unit.Monochromatic LED Be Controlled unit excites and produces a monochromatic light.This monochromatic light is to mix with this first white light and this second white light and produce mixed light.Control unit is by modulation first white light LEDs, second white light LEDs, and monochromatic LED and obtain the mixed light of predetermined color coordinate or color rendering.
Except that monochromatic light mixes with this first white light and this second white light and produces the mixed light, also can select wide spectrum monochromatic light for use, for example, this wide spectrum monochromatic light LED comprises UV led chip and fluorescence coating.Fluorescence coating has a fluorescent material, and the UV led chip produces a ultraviolet light when 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 produces mixed light; Perhaps, wide spectrum monochromatic light also can be by blue-light LED chip, the monochromatic fluorescent material of arranging in pairs or groups, and monochromatic fluorescent material absorbs the blue-ray LED emitted light fully, 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 unit.The first wide spectrum monochromatic LED Be Controlled unit excites to produce the first wide spectrum monochromatic light.The second wide spectrum monochromatic LED Be 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.
Adopt the photochromic modulator approach and the photochromic variable led light source module of 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 electric current to pass through down, and the colour temperature of white light LEDs s is not easy to produce the drift characteristic with the temperature rising, is to use a plurality of high color rendering white light LEDs s no matter make, or at least one monochromatic light LED that arranges in pairs or groups is when doing the modulation of photochromic and colour temperature, and easier control changes in scope.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 is the schematic flow sheet according to photochromic modulator approach first embodiment of the present invention;
Fig. 2 A, Fig. 2 B and Fig. 2 C are the optical spectrum schematic diagram according to first white light of the present invention and 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 the photochromic modulator approach first embodiment step S10 of the present invention;
Fig. 5 is the schematic flow sheet according to first embodiment of the photochromic modulator approach step of the present invention S100;
Fig. 6 is the schematic flow sheet according to 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 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 first embodiment of the present invention;
Figure 12 is the schematic flow sheet according to photochromic modulator approach 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 photochromic variable light-emitting diode (LED) light source module first embodiment of the present invention;
Figure 15 is the structural representation according to photochromic variable led light source module 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: the monochromatic LED chip
60,70,80: photochromic variable led light source module
62,72: first white light LEDs
64,74: second white light LEDs
56,66,76,86: control unit
620,640,720,740,780,820,840: substrate
622,642,722: blue-light LED chip
624,644,724,744,784: fluorescence coating
621,641: the carrying cup
625,645,728,748,786,825,845: the leaded light colloid
626,646,725,745,826: the first fluorescent material
627,647,726,746,846: the second fluorescent material
The 727,747: the 3rd fluorescent material
785: the four fluorescent material
742,782,822, the 842:UV led chip
824: the first fluorescence coatings
844: the second fluorescence coatings
78,82,84: the wide spectrum monochromatic LED
90,92,94: peak value (blue light, green glow, ruddiness)
W1, W2, W3: first, second and third white light
Embodiment
Below in conjunction with accompanying drawing structural principle of the present invention and operation principle are done concrete description:
Photochromic modulator approach first embodiment
Fig. 1 is the schematic flow sheet according to photochromic modulator approach first embodiment of the present invention.Can see that from figure knowing this photochromic modulator approach comprises S10: a plurality of white light LEDs of modulation are to produce at least one first white light and one second white light; And S12: mix first white light and second white light.
Aforementioned lights tone system method is meant the method for the chromaticity coordinates of adjusting the light that produces.The color rendering of first white light and second white light is more than or equal to 85.Preferable states can make the color rendering of at least one white light more than or equal to 90, and optimum state can make the color rendering of at least one white light greater than 95.The chromaticity coordinates of first white light is different from the chromaticity coordinates of 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 first white light of the present invention and second white light.Trunnion axis among Fig. 2 A is represented wavelength, and unit is a nanometer, and vertical axis is a luminous intensity, and unit is relative intensity (A.U.).This optical spectrum has three main peak values 90,92,94 as can be seen from Fig. 2 A, represents three different colors respectively.Be denoted as near 94 the ruddiness of representing of spectrum.Be denoted as near 92 the green glow of representing of spectrum.Be denoted as near 90 the blue light of representing of spectrum.The spectrogram light that it produced as can be seen by Fig. 2 A 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.Can see in addition from Fig. 2 A and know in the spectral region of visible light (400-780 nanometer), the luminous intensity of each wavelength is quite continuous.The color rendering of the white light among Fig. 2 A is 94, and colour temperature is 6000K.Because among this embodiment, employed green light fluorescent powder 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 the 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 the high color rendering white light LEDs utilized electric current to arrange luminous intensity, its colour temperature and coordinate and spectrum peak ratio did 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 strong to weak be blue light 90, ruddiness 94, green glow 92 in regular turn.Though and three photochromic intensity are variant, difference is little.Similarly, the luminous intensity of each wavelength is quite continuous among Fig. 2 B, and the color rendering of the white light among Fig. 2 B is through measuring, and its value also is 94.
In Fig. 2 C each main photochromic luminous intensity of white light by strong be that ruddiness 94, green glow 92 reach, blue light 90 to weak also preface.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 also is 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 among the figure is the chromaticity coordinates position of the white light of corresponding diagram 2A.The point that indicates W2 among the figure is the chromaticity coordinates position of the white light of corresponding diagram 2B.The point that indicates W3 among the figure is the chromaticity coordinates position of the white light of corresponding diagram 2C.
The white light W1 position of Fig. 2 A near 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 near 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 near 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 first white light of step S10 or second white light can be illustrated for Fig. 2 A, Fig. 2 B and Fig. 2 C, wherein two kinds of W2, W3, but not as limit.
The a plurality of white light LEDs of the described modulation of step S10 are meant the white light LEDs of modulation more than two or two to produce first white light and second white light at least.If only two white light LEDs are arranged, then it produces first white light and second white light respectively.If three white light LEDs with different chromaticity coordinates are arranged, then will produce three kinds of white lights.Just may be three kinds of white light W1 shown in Fig. 2 A, Fig. 2 B and Fig. 2 C, W2, W3.If two white light LEDs of surpassing are arranged by modulation, but all white light LEDs only can produce two kinds of white lights (first white light or second white light), also belong to category of the present invention.
The a plurality of white light LEDs of step S10 described " modulation " divide other luminous intensity to produce parameters such as electric current that modulation in first white light and second white light can be those white light LEDs of modulation or pulse duration with modulation first white light and second white light.The electric current of modulation white light LEDs refers to adjusts the luminosity that the current strength of supplying with white light LEDs is controlled this white light LEDs.The pulse duration of modulation white light LEDs refers to that to drive white light LEDs in pulse duration (PWM, the Pulse Width Modulation) mode that modifies tone luminous, by unit of adjustment in the time pulse be the total time of high level, to control its luminous intensity.It should be noted that aforementioned modulation parameter can select one or in conjunction with the utilization, and, aforementioned modulation parameter only is an illustration, non-ly be used for limiting modulation mode of the present invention, can think in all existing this areas and or modulation parameter and the method used, all be the category that the present invention can use means.
The mode of the electric current of aforementioned modulation white light LEDs, pulse duration or brightness, can't change to dividing first white light that other white light LEDs produces or the spectrum or the chromaticity coordinates of second white light, but will for chromaticity coordinates, colour temperature and the spectrum of the mixed white light of mixing out change.
Behind the modulation white light LEDs among the step S10, if, please refer to Fig. 3 B only to produce first white light and second white light is an example.If the chromaticity coordinates of first white light is W1, the chromaticity coordinates of second white light is W2 among the figure.Therefore, when the luminous intensity of modulation first white light and second white light, the chromaticity coordinates of the mixed light that the S12 step mixes out will drop on W1 and W2 online.Thus, promptly reach the purpose of photochromic modulation.The demand that is adapted to various different applications.In addition, because the color rendering height of first white light and second white light, therefore, the light that mixes out also has high color rendering.
Please consult Fig. 3 A again, similarly.If the S10 step has produced three kinds of white lights (to call the first white light W1, the second white light W2, the 3rd white light W3 in the following text).Then behind 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 the graphic triangle).By that analogy, if step S10 produced four kinds of white lights, then the adjustable chromaticity coordinates of mixed light zone may be bigger, have more elasticity.Also can satisfy simultaneously the demand of high color rendering.
The chromaticity coordinates of aforementioned first white light and second white light is different to be that (Color Difference is AE) more than or equal to 0.01 for the aberration of expression first white light and second white light.Though with a kind of led chip (or claim identical material and technology) and with white light that a kind of fluorescent material produced at microcosmic angle, its chromaticity coordinates also some elementary errors is different, but if this is applied to step S10 with a kind of led chip, its adjustable photochromic will very limited, so more do not advise employing.In addition, though the distance of the chromaticity coordinates of various white lights is far away relatively among Fig. 3 A, the present invention as long as satisfy the different condition of chromaticity coordinates, promptly should belong to category of the present invention not as limit.
" mixing " first white light and second white light among the step S12 are can the irradiation path of first white light and 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 with its reflection and superimposed.
See also Fig. 4, it is the schematic flow sheet according to the photochromic modulator approach 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 first embodiment of the photochromic modulator approach step of foundation the present invention S100.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 a green glow and a ruddiness respectively; And S103: mix this green glow, this ruddiness and this blue light and produce this first white light.
In first embodiment of this step S100, pass through the content that fluorescence coating produces ruddiness and green glow about how making blue light, be detailed later.
The spectrum of the white light that step S103 mixing ruddiness, green glow and blue light are produced promptly 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 second embodiment of the photochromic modulator approach step of foundation the present invention S100.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 a gold-tinted and a ruddiness respectively; And S107: mix this gold-tinted, this ruddiness and this blue light and produce this first white light.
First white light that second embodiment of this step S100 is mixed is comparatively obvious in gold-tinted part, green glow then a little less than.But this situation also can change by material, structure and the composition of suitable modulation fluorescence coating.
See also 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 a gold-tinted, a green glow and a ruddiness respectively; 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 to have four main monochromatic light (gold-tinted, green glow, ruddiness and blue light), therefore, only needs suitably each monochromatic ratio of allotment, and mixed light can obtain preferable color rendering.
See also 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 a ultraviolet light (Ultraviolet, UV) led chip is 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 first to three embodiment are that the 4th embodiment uses 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 simultaneously, four various monochromatic characteristics that embodiment produced are also inequality, are described as follows now:
Centre wavelength about first to the three embodiment blue light that employed blue-light LED chip sends of step S100 can be in the 440-490 nanometer.
Aforementioned fluorescence coating can comprise a leaded light glue material and be dispersed in fluorescent material in the leaded light glue material.Aforementioned fluorescent material can produced the light of specific wavelength after blue-light excited, for example produce the light of green wavelength, yellow wavelengths or red wavelength.
About aforementioned material, please refer to following table in order to the fluorescent material that produces specific wavelength.Though the material following table of this fluorescent material is as for example, not as limit.
Employed fluorescence coating is produced green glow and ruddiness in step S102, promptly represents to have first fluorescent material and second fluorescent material in this fluorescence coating.Wherein first fluorescent material is the above-mentioned fluorescent material that can be produced green glow after blue-light excited.Second fluorescent material is the above-mentioned fluorescent material that can be produced ruddiness after blue-light excited.First fluorescent material and second fluorescent material ratio (for example percentage by weight) in fluorescence coating can suitably be allocated, to obtain the chromaticity coordinates and the color rendering of the first required white light.For example, if first fluorescent material is higher than second fluorescent material with respect to the ratio of whole fluorescence coating, then the green glow of the white light LEDs that produces will be more than ruddiness.
The percentage by weight that different fluorescent material in the foregoing description account for whole fluorescence coating is not limited to a specific ratio, but looks 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 might be, and make the chromaticity coordinates difference to some extent of these two light that white light LEDs sent because of the position difference of each fluorescent material place fluorescence coating.For example: if first fluorescent material is the same with the ratio of second fluorescent material, but first fluorescent material of first white light LEDs is positioned near the main output optical zone (also can weigh up the light optical axis position) of blue-light LED chip mostly, the first fluorescent material position of second white light LEDs is then away from the main output optical zone of blue-light LED chip, thus, first fluorescent material of first white light LEDs can be excited by more blue light, second fluorescent material of second white light LEDs then only can be excited by less blue light, therefore, though the ratio of the fluorescent material of first white light LEDs and second white light LEDs is close, first white light that is produced is not quite similar.
Described " modulation " a plurality of white light LEDs of abovementioned steps S10 can be colour temperature, chromaticity coordinates or the optical spectrum of those white light LEDs of modulation with " modulation " that produces in first white light and second white light in addition, with first white light or second white light that produces different chromaticity coordinatess, different color renderings.Its colour temperature of modulation, chromaticity coordinates or spectral method are promptly with the ratio of fluorescent material in its fluorescence coating of aforementioned adjustment or position, distribution scenario or the like.
The spectral region of aforementioned first white light and second white light at 400nm between the 850nm.And first white light LEDs and second white light LEDs are in respectively by the scope of modulation, and first white light that it produced and the colour temperature of second white light change respectively less than 200K.
The fluorescence coating of corresponding aforementioned ultraviolet light is different with the material of the fluorescence coating of corresponding blue light.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 last table, so repeat no more.Wherein adopt first fluorescent material, second fluorescent material, the 3rd fluorescent material after by ultraviolet excitation, to produce ruddiness, green glow and blue light.The aforementioned fluorescent material that is used for ultraviolet light accounts for the also visual required and modulation of the ratio of whole fluorescence coating, the chromaticity coordinates of being scheduled to obtain, colour temperature, color rendering or spectrum.The 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 first generating white light to be described, also can be applicable to produce among the step S118 and modulation second white light.
Though the generation of aforementioned first white light and second white light is sent a monochromatic light with a monochromatic LED chip earlier, afterwards, relending thus, monochromatic light comes the fluorescence excitation layer and produces other photochromic light, again each photochromic mixing is produced, but the producing method of first white light and second white light is not exceeded in the mode of this mixed white light.Aforementioned first white light and 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 first embodiment of the present invention.First embodiment of aforementioned lights tone system method can comprise S14 in addition: 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 second white light.
See also Figure 10.Step S14 comprises S140 and produces a ultraviolet light; And S142: make this ultraviolet light pass through a fluorescence coating to produce this at least one wide spectrum monochromatic light.
The ultraviolet light that step S140 produced is the ultraviolet light that produces for via modulation UV led chip.This ultraviolet light promptly can produce wide spectrum monochromatic light by only having the fluorescence coating of monochromatic fluorescent material.The monochromatic fluorescent material of step S142 can for but be not limited to the described fluorescent material of 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, fully be scattered with the fluorescent material that can produce gold-tinted in fluorescence coating, the blue light that this blue chip sent can produce gold-tinted through changing to be absorbed fully behind the fluorescence coating, and this gold-tinted promptly can be used as the wide spectrum monochromatic light of step S14.Lift an example again, if the YaG composition in the fluorescence coating is increased, the blue light that blue chip is sent fully absorbs for YaG, can reach the wide spectrum monochromatic light that forms step S14 with blue chip, though this kind wide spectrum monochromatic light can be seen two peak values on its spectrogram, but finding of naked eye belongs to gold-tinted, also belongs to the wide spectrum monochromatic light of step S14.
The continuous Figure 11 that please refer to.First embodiment of aforementioned lights tone system method can comprise S18 in addition: modulation one monochromatic LED is to produce a monochromatic light; And S19: mix this monochromatic light, this first white light and second white light.The monochromatic LED of step S18 is meant 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 and aforementioned wide spectrum monochromatic light are also inequality.This monochromatic light is meant the monochromatic light that directly is excited the monochromatic LED chip (modulation) sent.Red LED chip, blue-light LED chip, the green light LED chip light that is excited and produced for example.Wide spectrum monochromatic light then is meant the wide spectrum monochromatic light (comprising the monochromatic light of monochromatic LED chip and the light that is excited) that the ultraviolet light that the 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 more than or equal to 20 nanometers, is preferably more than or equal to 25 nanometers, and the best is more than or equal to 30 nanometers.Relatively, wide 10 nanometers that then are about of monochromatic half-wave.Therefore, mix with first and second white light, but the chromaticity coordinates of modulation, the scope of colour temperature are heightened, increase photochromic adjustable elasticity and space by above-mentioned monochromatic light or wide spectrum monochromatic light.
In addition, because that above-mentioned wide spectrum monochromatic light has a bigger half-wave is wide, therefore, when mixing with second white light, can make the continuity increase of its spectrum, the raising color rendering with first white light.
Photochromic modulator approach second embodiment
Secondly, second embodiment according to the photochromic modulator approach of the present invention please refer to Figure 12.Second embodiment of photochromic modulator approach comprises: S20: a plurality of wide spectrum monochromatic LEDs of modulation are to produce at least one 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 second wide spectrum are wider than or equal 20 nanometers (nm) and the monochromatic chromaticity coordinates difference of first and second wide spectrum.
The mode of " modulation " a plurality of wide spectrum monochromatic LEDs of step S20 is identical with above stated specification, comprises electric current, pulse duration, frequency spectrum, colour temperature or the brightness of modulation wide spectrum monochromatic LED.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, be big owing to the wide more general monochromatic half-wave of the monochromatic half-wave of wide spectrum is wide, so spectral continuity behind the modulation and color rendering are also preferable.
The step of a plurality of wide spectrum monochromatic LEDs of the modulation of S20 also can produce three kinds of wide spectrum monochromatic light (meaning promptly produces first, second and third wide spectrum monochromatic light).And these three kinds of monochromatic half-waves of wide spectrum are wide all more than or equal to 20 nanometers and its chromaticity coordinates difference.Therefore, by a plurality of wide spectrum monochromatic LEDs of modulation and behind 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.
See also Figure 13, it is the schematic flow sheet for the photochromic modulator approach step of foundation 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 execution mode of S202, so repeat no more.
The foregoing description utilizes the photochromic wideband spectrum monochromatic light of two or more differences, by changing different photochromic modes such as the monochromatic brightness of wideband spectrum, electric current, frequency spectrum, colour temperature or coordinate, modulate photochromic in the photochromic wideband spectrum monochromatic light of difference is sat around the mark scope, reach photochromic variable LEDs light-source system.
The employed wideband spectrum monochromatic light of this embodiment is that UVLED excites monochromatic light fluorescent material (R, G, B powder) to reach wideband spectrum monochromatic light, and spectrum width can be adjusted by the selection of fluorescent material, when 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 the drift of emission wavelength because of the generation of electric current or heat, the problem that can exempt the emission wavelength drift.
Photochromic variable LED light-source module first embodiment
Moreover, please cooperate Figure 14 to read it.It is the structural representation of photochromic variable led light source module 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 unit 66.
First white light LEDs 62 is excited to produce first white light.The color rendering of this first white light is greater than 85.Second white light LEDs 64 is excited to produce second white light.Second white light mixes with first white light.The color rendering of second white light is greater than 85.The chromaticity coordinates of first white light is different from the chromaticity coordinates of second white light.Control unit 66 is respectively in order to excite first white light LEDs 62 and this second white light LEDs 64.
First white light LEDs 62 comprises a substrate 620, a blue-light LED chip 622, reaches a fluorescence coating 624.Substrate 620 has a carrying cup 621.Blue-light LED chip 622 is configured in the carrying cup 621 and in order to be excited to produce blue light.This blue light promptly penetrates fluorescence coating 624 after sending from blue-light LED chip 622.
Second white light LEDs 64 comprises a substrate 640, a blue-light LED chip 642, reaches a fluorescence coating 644.Substrate 640 has a carrying cup 641.Blue-light LED chip 642 is configured in the carrying cup 641 and in order to be excited to produce blue light and to penetrate in the fluorescence coating 644.
The fluorescence coating 644 of second white light LEDs 64 is similar to the fluorescence coating 624 of first white light LEDs 62.Difference is material, the percentage by weight of first fluorescent material 646 of second white light LEDs 64 and second fluorescent material 647 or intersperses among the mode of leaded light colloid 645 and material, the percentage by weight of first fluorescent material 626 of first white light LEDs 62 and second fluorescent material 627 or to intersperse among leaded light colloid 625 different to small part.For example: the material of first and second fluorescent material 646,647 of second white light LEDs 64 can produce gold-tinted and ruddiness through after the fluorescence coating 644 at the blue light that blue chip 642 is produced.Gold-tinted, ruddiness and blue light promptly produce second white light after passing through and mixing.Therefore, the chromaticity coordinates of this second white light is promptly different with the chromaticity coordinates of first white light.
Though first white light LEDs 62 and second white light LEDs 64 are for example as above, not as limit.Any color rendering that can produce all belongs to category of the present invention greater than 85 white light.For example, if the material that the fluorescence coating of first white light LEDs 62 is selected can produce gold-tinted, green glow and ruddiness after exciting through blue chip, color rendering can also can reach purpose of the present invention greater than 85 after mixing.
Aforementioned first white light is to reach by the rising angle of adjusting first white light LEDs 62 and second white light LEDs 64 with second white light " mixing ".Perhaps can finish by reflector, leaded light component (as photoconductive tube) or lens.
First white light LEDs 62 shown in Figure 14 and second white light LEDs 64 are to represent with two assemblies that are separated from each other, but mode that also can an independent assembly is implemented.For example, with aforementioned blue-light LED chip 622,642 are separately positioned on the same substrate and cover respectively its corresponding fluorescence coating 624,644, in other words, be positioned at single packaging body with at least two chips, continuous provide different electric current or pulse duration or electric current and pulse duration to change the luminous intensity of first white light or second white light respectively through logical operation, reach different chromaticity coordinates by control unit; Or in the corresponding fluorescence coating the selecting for use of fluorescent material material, 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, mix this first white light and this second white light again, also can reach effect of the present invention.
With the actual design result, can make it is that four chips are positioned at same packaging body, wherein, the chip kind can be blue chip or UV chip, the chip emitted light excites the fluorescent material in the 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 for use of fluorescent material material as above-mentioned, so do not repeat.Perhaps, also can make the chip emitted light excite fluorescent material in the corresponding fluorescence coating, can form one first different ruddiness of colour temperature, one second ruddiness, a green glow, a blue light, but those light are mixed the effect that reaches the colour temperature modulation; Perhaps make the chip emitted light excite fluorescent material in the corresponding fluorescence coating, can form one first different green glow of colour temperature, one second green glow, a blue light, a ruddiness, but those light are mixed the effect that reaches the colour temperature modulation; Perhaps make the chip emitted light excite fluorescent material in the corresponding fluorescence coating, can form the different ruddiness of colour temperature, a green glow, a blue light and a white light, but those light are mixed the effect that reaches the colour temperature modulation.
Photochromic variable LED light-source module second embodiment
See also Figure 15, it is the structural representation according to photochromic variable led light source module second embodiment of the present invention.Can see among the figure that photochromic variable led light source module 70 comprises first white light LEDs 72, second white light LEDs 74, wide spectrum monochromatic LED 78 and control unit 76.
The framework and first embodiment of second embodiment of this photochromic variable led light source module are similar, difference be (a) first white light LEDs 72 and second white light LEDs 74 thin bilge construction, and (b) second embodiment increased a wide spectrum monochromatic LED 78.
First white light LEDs 72 of second embodiment comprises substrate 720, blue-light LED chip 722 and fluorescence coating 724.Fluorescence coating 724 comprises leaded light colloid 728, first fluorescent material 725, second fluorescent material 726, reaches the 3rd fluorescent material 727.Blue-light LED chip 722 sends blue light after Be Controlled unit 76 excites.This blue light is by behind the fluorescence coating 724, excites first, second, third fluorescent material 725,726,727 respectively and produces ruddiness, gold-tinted, and green glow.This ruddiness, gold-tinted, green glow, with blue light after promptly produce first white light.
About can be by blue-light excited and produce ruddiness, gold-tinted, and the material of the fluorescent material 725,726,727 of green glow, preamble chatted and, repeat no more.
Second white light LEDs 74 comprises substrate 740, UV led chip 742, reaches fluorescence coating 744.This fluorescence coating 744 includes leaded light colloid 748, first fluorescent material 745, second fluorescent material 746 and the 3rd fluorescent material 747.UV led chip 742 Be Controlled unit 76 excite and produce ultraviolet light.This ultraviolet light has excited first, second and third fluorescent material 745,746,747 respectively by 744 of fluorescence coatings and has produced ruddiness, green glow and blue light.Ruddiness, green glow and blue light promptly produce second white light through behind the mixed light.
And the wide spectrum monochromatic LED among 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 sends a wide spectrum monochromatic light being excited by the ultraviolet light that UV led chip 782 produced.This wide spectrum monochromatic light promptly mixes with aforementioned first white light and second white light and produces mixed light.Photochromic (chromaticity coordinates), colour temperature or the color rendering of this mixed light can be by the suitable modulation of control unit 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.
At last, 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 purpose.
Photochromic variable LED light-source module the 3rd embodiment
Then, see also 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, reaches a control unit 86.
The first wide spectrum monochromatic LED, 82 Be Controlled unit 86 excite to produce one first wide spectrum monochromatic light.The second wide spectrum monochromatic LED, 84 Be Controlled unit 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.First fluorescence coating 824 comprises the leaded light colloid 825 and first fluorescent material 826.This first fluorescent material 826 promptly can produce the first wide spectrum monochromatic light after the ultraviolet light that is sent by UV led chip 822 excites.
The UV led chip 842 of the second wide spectrum monochromatic LED 84 is configured on the substrate 840.Second fluorescence coating 844 comprises the leaded light colloid 845 and second fluorescent material 846.The ultraviolet light that UV led chip 842 is produced promptly can produce the second wide spectrum monochromatic light by second fluorescent material 846 of second fluorescence coating 844.Monochromatic chromaticity coordinates of this second wide spectrum and the monochromatic chromaticity coordinates of first wide spectrum are different.Therefore, distinguish first and second wide spectrum monochromatic LEDs of modulation 82,84 o'clock when control unit 86, 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 more than or equal to 25 nanometers, and the best is more than or equal to 30 nanometers.The monochromatic centre wavelength scope of first, second wide spectrum is between 400 nanometer to 850 nanometers.Be with, 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 for use, so repeat no more.
Aforementioned UV led chip 742,782,822,842 ultraviolet lights that produced can be but be not limited to ultraviolet light, black light or deep UV (ultraviolet light).
The 4th of photochromic variable LED light-source module is implemented example
Please cooperate Figure 17 to read it.Figure 17 implements the structural representation of example for the photochromic variable LED light-source module the 4th of the present invention.The embodiment of above-mentioned Figure 14, Figure 15 and Figure 16 is placing the mode that encapsulates behind the luminescence chip for it on the single substrate, Figure 17 is disposed at the practical range that encapsulates again on the single substrate (or claiming support plate) with a plurality of luminescence chips.Can see from Figure 17 and to know that 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 unit 56.Optionally make in first, second, third and fourth monochromatic LED chip 520,522,524,526 tops and to have fluorescence coating respectively (because the visual angle relation, so be not numbered sign).And have at least a aforesaid fluorescent material (because visual angle relation, so be not numbered sign) in this fluorescence coating in addition.Illustrate, aforementioned first, second, third and fourth monochromatic LED chip 520,522,524,526 monochromatic light that sent (can be visible light or UV light) promptly produce the adjustable white light of colour temperature after can and mixing through fluorescence coating.
After aforementioned first, second, third and fourth monochromatic LED chip 520,522,524,526 monochromatic light that sent (can be visible light or UV light) optionally pass through fluorescence coating, promptly produce four kinds of light respectively.These four kinds of light can have multiple combination, look the selection of the fluorescent material in monochromatic LED chip 520,522,524,526 and the fluorescence coating and decide.Illustrate, these four kinds of light can be but be not limited to (A) four kinds of aforementioned white lights, (B) first ruddiness, second ruddiness, green glow, and blue light, (C) ruddiness, first green glow, second green glow, and blue light, (D) ruddiness, green glow, blue light and white light.
About how selecting aforementioned monochromatic LED chip 520,522,524,526 and fluorescent material, no longer repeat because preamble is addressed.
In addition, can see among Figure 17 and know that this first, second, third and fourth monochromatic LED chip 520,522,524,526 disposes with array way, but not as limit, also can adopt one-dimensional array, ring-type or other Any shape mode to dispose or arrange.
The enforcement example that photochromic variable LED light-source module is used
At last, see also 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 light fixture or moveable lamps and lanterns.And fixed light fixture also can be indoor fixed light fixture or outdoor fixed light fixture.Indoor fixed light fixture can be but be not limited to interior Recessed light, ceiling light, projecting lamp or wall lamp.Fixed outdoor formula light fixture then 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, perhaps two wide spectrum monochromatic light mixing or at least one wide spectrum monochromatic light are added the mixing of white light.In addition, though adopt a plurality of photochromic variable led light source module 44a among Figure 18,44b is arranged in the lamp body 42, not as limit, can only adopt one, two photochromic variable led light source modules during practical application, decides on the demand of practical application.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (39)
1. a photochromic modulator approach is characterized in that, this method comprises:
The a plurality of white light LEDs of modulation are to produce at least one 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.
2. modulator approach according to claim 1 is characterized in that, a plurality of white light LEDs of described modulation are the electric current of those white light LEDs of modulation or pulse width parameter one at least with the step that produces at least one first white light and one second white light.
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 with the step that produces at least one 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 with the step that produces 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 a green glow and a ruddiness respectively; 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 with the step that produces 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 a gold-tinted and a ruddiness respectively; 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 with the step that produces 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 a gold-tinted, a green glow and a ruddiness respectively; 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 with the step that produces 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
Mix this green glow, this ruddiness and this blue light to produce this first white light.
10. modulator approach according to claim 5 is characterized in that, another of described those white light LEDs of modulation comprises with the step that produces this second white light:
Excite a blue-light LED chip to produce a blue light;
Make this blue light by a fluorescence coating to produce a green glow and a ruddiness respectively; And
Mix this green glow, this ruddiness and this blue light to produce this second white light.
11. modulator approach according to claim 5 is characterized in that, another of described those white light LEDs of modulation comprises with the step that produces this second white light:
Excite a blue-light LED chip to produce a blue light;
Make this blue light by a fluorescence coating to produce a gold-tinted and a ruddiness respectively; And
Mix this gold-tinted, this ruddiness and this blue light to produce this second white light.
12. modulator approach according to claim 5 is characterized in that, another of described those white light LEDs of modulation comprises with the step that produces this second white light:
Excite a blue-light LED chip to produce a blue light;
Make this blue light by a fluorescence coating to produce a gold-tinted, a green glow and a ruddiness respectively; And
Mix this gold-tinted, this green glow, this ruddiness and this blue light to produce this second white light.
13. modulator approach according to claim 5 is characterized in that, another of described those white light LEDs of modulation comprises with the step that produces this second 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
Mix this green glow, this ruddiness and this blue light to produce this second white light.
14. modulator approach according to claim 1 is characterized in that, other comprises:
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 second white light.
15. modulator approach 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 pass through a fluorescence coating to produce this at least one wide spectrum monochromatic light.
16. modulator approach according to claim 1 is characterized in that, other comprises:
Modulation one monochromatic LED is to produce a monochromatic light; And
Mix this monochromatic light, this first white light and second white light.
17. a photochromic modulator approach is characterized in that, comprises:
The a plurality of wide spectrum monochromatic LEDs of modulation are to produce at least one first wide spectrum monochromatic light and one second wide spectrum monochromatic light, this 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 approach according to claim 17, it is characterized in that a plurality of wide spectrum monochromatic LEDs of described modulation are to produce electric current that at least one 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 one at least.
19. modulator approach 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 approach according to claim 17 is characterized in that, a plurality of wide spectrum monochromatic LEDs of described modulation are to produce at least one 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 approach 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 approach 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. a photochromic variable LED light-source module comprises:
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 unit excites this first white light LEDs and this second white light LEDs respectively.
24. light source module according to claim 23, it is characterized in that this first white light LEDs comprises a blue-light LED chip and a fluorescence coating, this fluorescence coating has a plurality of fluorescent material, this blue-light LED chip produces a blue light when being excited, this blue light by this fluorescence coating to send this first white light.
25. light source module according to claim 24 is characterized in that, this blue light produces a green glow and a ruddiness respectively during by this fluorescence coating, and this green glow, this ruddiness and this blue light produce this first white light.
26. light source module according to claim 24 is characterized in that, this blue light produces a gold-tinted, green glow and a ruddiness respectively 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 module according to claim 24 is characterized in that, this blue light produces a gold-tinted and a ruddiness respectively during by this fluorescence coating, and this gold-tinted, this ruddiness and this blue light produce this first white light.
28. light source module according to claim 23 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 ultraviolet light by this fluorescence coating to send this first white light.
29. light source module 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 when being excited, this blue light by this fluorescence coating to send this second white light.
30. light source module according to claim 23, it is characterized in that, other comprises at least one wide spectrum monochromatic LED, and this wide spectrum monochromatic LED is excited by this control unit 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 module 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 when being excited, and this ultraviolet light is by this fluorescence coating and send this wide spectrum monochromatic light.
32. light source module according to claim 30 is characterized in that, the monochromatic half-wave of this wide spectrum is wider than or equals 25 nanometers.
33. a photochromic variable LED light-source module is characterized in that, comprises:
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 unit excites this first wide spectrum monochromatic LED and this second wide spectrum monochromatic LED respectively.
34. light source module according to claim 33, it is characterized in that, this first wide spectrum monochromatic LED comprises a UV led chip and a fluorescence coating, and this UV led chip produces a ultraviolet light when being excited, and this ultraviolet light is by this fluorescence coating and send this first wide spectrum monochromatic light.
35. light source module according to claim 33, it is characterized in that, this second wide spectrum monochromatic LED comprises a UV led chip and a fluorescence coating, and this UV led chip produces a ultraviolet light when being excited, and this ultraviolet light is by this fluorescence coating and send this second wide spectrum monochromatic light.
36. light source module 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 module 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. a photochromic variable LED light-source module is characterized in that, comprises:
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 mutual encapsulation are in this substrate; And
Control unit, excite 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 respectively, described monochromatic light is visible light 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 are sent produces four kinds of light through fluorescence coating separately, these four kinds of light are white light or wide spectrum monochromatic light, and these four kinds of light mix the back and produce white light.
39. a light fixture is characterized in that, comprises any described photochromic variable LED light-source module in one or more claims 23 to 38.
Priority Applications (1)
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