CN205539893U - Wavelength converters , light source system and projection arrangement - Google Patents

Wavelength converters , light source system and projection arrangement Download PDF

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Publication number
CN205539893U
CN205539893U CN201620034758.1U CN201620034758U CN205539893U CN 205539893 U CN205539893 U CN 205539893U CN 201620034758 U CN201620034758 U CN 201620034758U CN 205539893 U CN205539893 U CN 205539893U
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CN
China
Prior art keywords
light
sub
wavelength converter
wavelength
wave length
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CN201620034758.1U
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Chinese (zh)
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田梓峰
郑鹏
许颜正
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深圳市光峰光电技术有限公司
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Priority to CN201620034758.1U priority Critical patent/CN205539893U/en
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Publication of CN205539893U publication Critical patent/CN205539893U/en

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    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/14Details
    • G03B21/20Lamp housings

Abstract

The utility model provides a wavelength converters, light source system and projection arrangement. This wavelength converters is including the first sub - wavelength converters who has the phosphor powder material, sub - wavelength converters of second and the drive arrangement who has the quantum dot material. Light source system includes excitation light source and above -mentioned wavelength converters, and the exciting light light source is used for producing an exciting light, first sub - wavelength converters converts the exciting light into fluorescence, and this fluorescence excites the quantum dot material on the sub - wavelength converters of second to convert wavelength fluorescence long slightly to, the luminous half -peak width of quantum dot material in addition, and the excitation is high. In this way, the utility model discloses a wavelength converters, light source system and projection arrangement utilizes wavelength fluorescence excitation quantum point material short slightly to convert wavelength fluorescence long slightly to, and the quantum dot material that significantly reduces is direct to be excited and the heat that produces by the blue light, and conversion efficiency is high, so has the advantage of high light efficiency and high excitation concurrently.

Description

A kind of Wavelength converter, light-source system and projection arrangement

Technical field

This utility model relates to optical technical field, particularly relates to a kind of Wavelength converter, light Origin system and projection arrangement.

Background technology

Along with the development of Display Technique, people are more and more higher for the requirement of display image quality, light source Color-gamut is the biggest, and the display displayable color of picture is the most, closer to the natural color of object. Current projection light source, through providing sequence of colored lights frequently with iridescent wheel.Wherein, by fluorescence The most homochromy section of colour wheel is arranged on the propagation path of exciting light in turn and periodically, and then utilizes sharp Luminescence excites the fluorescent material on the most homochromy section of fluorescence colour wheel, to produce glimmering without color Light.But, spectral region produced by fluorescent material is wider so that the colour purity of part fluorescence Degree deficiency, and then cause the colour gamut of light source the biggest.In this case, it is generally required to pass through filter Fluorescence is filtered by mating plate, and to improve the excitation of fluorescence, the loss of such light efficiency is the biggest.

Accordingly, it is desirable to provide a kind of Wavelength converter, light-source system and projection arrangement, take into account While specular removal, improve excitation.

Utility model content

This utility model is mainly solving the technical problems that provide a kind of Wavelength converter, light source system System and projection arrangement, can improve excitation while taking into account specular removal.

For solving above-mentioned technical problem, the technical scheme that this utility model uses is: provide one Plant Wavelength converter, including: the first sub-Wavelength converter, described first sub-wavelength convert dress Put the first wave length switch region at least including being provided with phosphor material powder;Second sub-wavelength convert dress Put, described second sub-Wavelength converter at least includes corresponding with described first wave length switch region The first peak width modified region with quanta point material arranged;The peak value that described phosphor material powder is luminous The peak wavelength that wavelength is luminous less than described quanta point material;Driving means, described first wavelet is long Conversion equipment is relatively fixed with described second sub-Wavelength converter, and described driving means drives described First sub-Wavelength converter and described second sub-Wavelength converter property synchronizing cycle motion.

Preferably, described first sub-Wavelength converter includes be provided with yellow fluorescence powder material One wavelength-converting region, it is provided with the first echo area of reflective particle, is provided with the second of reflective particle Echo area;Described second sub-Wavelength converter includes and described first wave length switch region, first anti- First peak width with red light quantum point material penetrating the corresponding setting in district and the second echo area is modified District, there is the second peak width modified region of green light quantum point material, transparent area.

Preferably, described first sub-Wavelength converter includes be provided with yellow fluorescence powder material One wavelength-converting region, the first transparent area, the second transparent area;Described second sub-Wavelength converter bag Include and the having of described first wave length switch region, the first transparent area and the corresponding setting of the second transparent area First peak width modified region of red light quantum point material, second peak width with green light quantum point material are repaiied Decorations district, transparent area.

Further, described first sub-Wavelength converter also includes being provided with green emitting phosphor material Second wave length switch region;Described second sub-Wavelength converter also includes being provided with gold-tinted quantum dot 3rd peak width modified region of material, described second wave length switch region and described 3rd peak width modified region phase It is correspondingly arranged.

Preferably, described yellow fluorescence powder material is YAG:Ce3+, M2SiO4:Eu2+(M=Ca, Sr, Ba) At least one in fluorescent material;Described green emitting phosphor material is LuAG:Ce3+,β -Sialon:Eu2+, M2SiO4:Eu2+At least one in (M=Ca, Sr, Ba) fluorescent material;Described reflection Particle is TiO2, Al2O3In at least one;Described quanta point material is containing Cd class quantum dot One in CdSe/ZnS, CdSe/CdZnS, or be without Cd class quantum dot CuInS2/ZnS。 By selecting the quantum dot of different-grain diameter can obtain required HONGGUANG, gold-tinted and green glow.

Described wavelength-converting region and echo area can use silica gel fluorescent material diaphragm, fluorescent glass or Luminescent ceramic;Described peak width modified region can use silica gel to solidify to form with the quantum dot heat of mixing.

Preferably, in described first transparent area, the second transparent area and the second sub-Wavelength converter Transparent area be respectively provided with diffusion light effect, can use scattering silica white sheet.

Described scattering silica white sheet is will to solidify shape after white diffuse-reflectance particle and silica gel mix homogeneously Become.

Preferably, the quanta point material surface configuration of described first peak width modified region has the first optical filtering Film, the emergent light that described first filter coating allows the first wave length switch region less than predetermined angular is saturating Penetrate, more than the emergent light reflection of the first wave length switch region of predetermined angular, and reflect and first wave length Other coloured light that switch region emergent light wavelength is different.

Preferably, the red light quantum point material on described second sub-Wavelength converter, green quantum Point material, the surface of gold-tinted quanta point material and transparent area be respectively arranged with the first filter coating, the Two filter coatings, the 3rd filter coating, the 4th filter coating;

Described first filter coating (being called for short " 0 ° of yellowpass " below) allows less than predetermined angular Gold-tinted transmission, reflects more than the gold-tinted of predetermined angular, and reflects other coloured light;

Described second filter coating (below be called for short " 0 ° of bluepass ") and described 4th filter coating (after " 0 ° of bluepass " is called for short in face) allow the blue light transmission less than predetermined angular, more than predetermined angular Blu-ray reflection, and reflect other coloured light;

Described 3rd filter coating (being called for short " 0 ° of greenpass " below) allows less than predetermined angular Green light transmission, more than the green reflection of predetermined angular, and reflects other coloured light.

Wherein, as a example by the first filter coating, illustrate to use the benefit of above-mentioned filter coating.Through first The gold-tinted of sub-Wavelength converter conversion excites red light quantum point material to send out through the first filter coating again Penetrating HONGGUANG, the most unemployed gold-tinted reflects back into the first optical filtering at red light quantum point material interface Film, the gold-tinted of wide-angle is reflected back red light quantum point material interface booster dose again by the first filter coating Son point launches HONGGUANG, to improve gold-tinted utilization rate;On the other hand, the non-transmission outgoing of a part of HONGGUANG, But being reflexed to the first filter coating by red light quantum point material interface, this part HONGGUANG filters through first From the second sub-Wavelength converter transmission outgoing after film reflection, thus add HONGGUANG go out light efficiency Rate.Other filter coating also has the effect similar with the first filter coating, thus improves wavelength convert The light extraction efficiency of white light in device.

Preferably, described first sub-Wavelength converter and described second sub-Wavelength converter are same Two circuluses that axle is fixing.

Further, described driving means is to have the tumbler of a rotary shaft, said two ring Shape structure is coaxially fixed in described rotary shaft.

Preferably, the regional in described first sub-Wavelength converter and its corresponding setting Regional in described second sub-Wavelength converter is relative to the center of said two circulus In 0 degree or 180 degree setting.

Preferably, described first sub-Wavelength converter is a tubular structure, and described second wavelet is long Conversion equipment is a circulus, and coaxially fixes with described tubular structure;Described first wavelet is long The regional of conversion equipment is arranged at the lateral wall of described tubular structure, and described second wavelet length turns The regional of changing device is arranged in described circulus, and is positioned at outside described tubular structure Side.

Preferably, headed by described first sub-Wavelength converter and described second sub-Wavelength converter Two banded structures that tail connects, the regional of described first sub-Wavelength converter and the second son The regional of Wavelength converter is arranged side by side on said two banded structure.

For solving the problems referred to above, the technical scheme that this utility model uses is: provide a kind of light Origin system, including: exciting light sources, for producing an exciting light;Wavelength convert as above Device;Described Wavelength converter, under driving means drives, makes described first sub-wavelength convert dress Put and described second sub-Wavelength converter property synchronizing cycle motion, and described first wavelet length turns Changing device is arranged on the propagation path of described exciting light, and then is converted to alternately by described exciting light The first output light sequence that the first output light produced is formed;Induction element, is positioned at described first On the propagation path of output light, turn for the first output light guiding is incident in described second wavelet length Changing device, makes described second sub-Wavelength converter produce the second output light;Described first wavelet is long In the property synchronizing cycle motor process of conversion equipment and described second sub-Wavelength converter, described light The second output light sequence that origin system periodically output is formed by the second output light;Any time, The wavelength of described first output light is both less than the wavelength of described second output light.

Preferably, described first sub-Wavelength converter and described second sub-Wavelength converter are same Two circuluses that axle is fixing.

Further, described driving means is to have the tumbler of a rotary shaft, said two ring Shape structure is coaxially fixed in described rotary shaft.

Preferably, the regional in described first sub-Wavelength converter and its corresponding setting Regional in described second sub-Wavelength converter is relative to the center of said two circulus Arranging in special angle, described induction element is arranged so that described exciting light is in described first wavelet The hot spot formed on long conversion equipment and described first output light are at described second sub-wavelength convert dress The hot spot putting formation is also arranged in described special angle relative to the center of said two circulus.

Preferably, described special angle is 0 degree or 180 degree.

Preferably, described induction element includes at least one reflection unit, and described reflection unit is to described First output light sequence reflects, to change the direction of propagation of described first output light sequence, institute State reflection unit to be plane reflection device or be in semielliptical shape or in hemispherical and light reflection surface Reflection unit inwardly.

Further, described plane reflection device includes dichroic mirror or reflecting mirror.

Further, described in semielliptical shape or in hemispherical and light reflection surface reflection unit inwardly On be provided with light inlet, described exciting light incides described Wavelength converter through described light inlet.

Preferably, described first sub-Wavelength converter is a tubular structure, and described second wavelet is long Conversion equipment is a circulus, and coaxially fixes with described tubular structure;Described first wavelet is long The regional of conversion equipment is arranged at the lateral wall of described tubular structure, and described second wavelet length turns The regional of changing device is arranged in described circulus, and is positioned at outside described tubular structure Side.

Preferably, headed by described first sub-Wavelength converter and described second sub-Wavelength converter Two banded structures that tail connects, the regional of described first sub-Wavelength converter and the second son The regional of Wavelength converter is arranged side by side on said two banded structure.

Preferably, described exciting light sources produces blue light.

It is highly preferred that described exciting light sources is blue laser, blue laser diode or blueness Diode laser matrix.

For solving the problems referred to above, the technical scheme that this utility model uses is: provide one bag Include the projection arrangement of above-mentioned light-source system.

The more existing skill of Wavelength converter, light-source system and projection arrangement that this utility model provides Art has the advantages that

1, phosphor material powder and quanta point material synergism in this Wavelength converter, utilize glimmering Light powder material absorbs blue light and is converted into longer wavelength fluorescence, then is converted into longer through quanta point material Wavelength fluorescent;Wherein phosphor powder layer absorbs major part blue light, owing to fluorescent powder thermal stability is general relatively High, it is possible to bear the irradiation of high optical power density, and quantum dot layer absorptance its launch wavelength Slightly shorter fluorescence, and the spot diameter of excitation quantum point layer is slightly larger compared with excitated fluorescent powder layer hot spot, So the structure of this Wavelength converter can greatly reduce heat effect.

2, quanta point material can absorb the fluorescence that overwhelming majority fluorescence coating sends, and transformation efficiency is high; And the emission peak of quanta point material is the narrowest, can substitute for modifying sheet and use, ensureing specular removal On the basis of, improve excitation.

3, the persistence of quanta point material is typically in several nanoseconds, and the twilight sunset of current fluorescent material Time, quanta point material is more difficult compared to fluorescent material there is luminescence tens to hundreds of nanosecond Saturated, it is thus possible to realize the fluorescent emission of high brightness.

Accompanying drawing explanation

Fig. 1 is the structural representation of the first embodiment of this utility model light-source system;

Fig. 2 is the front view of the Wavelength converter in the light-source system shown in Fig. 1;

Fig. 3 is the structural representation of the second embodiment of this utility model light-source system;

Fig. 4 is the front view of the Wavelength converter in the light-source system shown in Fig. 3;

Fig. 5 is the structural representation of the 3rd embodiment of this utility model light-source system;

Fig. 6 is the structural representation of the 4th embodiment of this utility model light-source system;

Fig. 7 is the structural representation of the 5th embodiment of this utility model light-source system;

Fig. 8 is the structural representation of the sixth embodiment of this utility model light-source system;

Fig. 9 is the front view of the Wavelength converter in the light-source system shown in Fig. 8.

Detailed description of the invention

Refer to the first embodiment that Fig. 1 and Fig. 2, Fig. 1 are this utility model light-source systems Structural representation, Fig. 2 is the front view of the Wavelength converter in the light-source system shown in Fig. 1. As it is shown in figure 1, the light-source system 100 of the present embodiment mainly includes exciting light sources 101, two Turn to color mirror (dichroic mirror) 102 and reflecting mirror 104, lens 103 and 105, wavelength Changing device and dodging device 109;Wherein Wavelength converter includes the first sub-Wavelength converter 106, the second sub-Wavelength converter 107 and driving means 108.

Exciting light sources 101 is for producing an exciting light.In the present embodiment, exciting light sources 101 is a blue laser or blue LED, to produce blue light exciting light.

As in figure 2 it is shown, the first sub-Wavelength converter 106 is a circulus, at least include First wave length switch region.In the present embodiment, the first sub-Wavelength converter 106 includes around its ring The first wave length switch region with yellow fluorescent powder of the circumferentially segmented setting of shape structure, there is reflection First echo area of particle, there is the second wave length switch region of green emitting phosphor and there is reflection grain Second echo area of son.Above-mentioned phosphor material powder can be by blue excitation optical wavelength incident thereon It is converted into the Stimulated Light of respective color.Specifically, yellow fluorescent powder is by blueness incident thereon Exciting light is converted into yellow Stimulated Light, and green emitting phosphor is by blue excitation light conversion incident thereon Become green Stimulated Light.In the present embodiment, arrange further below instead at above-mentioned material for transformation of wave length Penetrate substrate, and then reflect the Stimulated Light that above-mentioned material for transformation of wave length is changed so that Stimulated Light is from upper State the incident direction phase of the exit direction above-mentioned wavelength-converting region relative with exciting light of wavelength-converting region Instead;Meanwhile, the first sub-Wavelength converter also include being provided with reflective particle the first echo area and Second echo area, the blue excitation light exit direction from above-mentioned first echo area and the second echo area with The incident direction of the most above-mentioned echo area of exciting light is contrary.

Wherein, above-mentioned yellow fluorescent powder is YAG:Ce3+, M2SiO4:Eu2+(M=Ca, Sr, Ba) is glimmering At least one in light powder;Above-mentioned green emitting phosphor is LuAG:Ce3+,β-Sialon:Eu2+, M2SiO4:Eu2+At least one in (M=Ca, Sr, Ba) fluorescent material;Above-mentioned reflective particle is TiO2, Al2O3In at least one;Above-mentioned wavelength-converting region and echo area can use silica gel fluorescent powder membrane Sheet, fluorescent glass or luminescent ceramic.

As in figure 2 it is shown, the second sub-Wavelength converter 107 is a circulus, it is with first Sub-Wavelength converter 106 is coaxially fixed, and is specifically arranged at the first sub-Wavelength converter 106 Ring outside.In other embodiments, the second sub-Wavelength converter 107 can also be arranged at Inside the ring of one sub-Wavelength converter 106.Second sub-Wavelength converter 107 at least includes First peak width modified region.In the present embodiment, the second sub-Wavelength converter 107 includes around its ring The first peak width modified region with red light quantum point of the circumferentially segmented setting of shape structure, there is green glow Second peak width modified region of quantum dot, there is the 3rd peak width modified region and printing opacity of gold-tinted quantum dot District.The wavelength-converting region of each color on above-mentioned regional and the first sub-Wavelength converter 106 It is correspondingly arranged.In the present embodiment, the regional on the first sub-Wavelength converter 106 and The regional that two sub-Wavelength converters 107 are correspondingly arranged becomes relative to the center of circulus 180 degree of settings, concrete, first wave length transition region and the first peak width modified region, the first reflection District and the second peak width modified region, second wave length transition region and the 3rd peak width modified region, the second reflection District becomes 180 degree of settings with transparent area relative to the center of circulus.About each in this utility model The set-up mode in region is by that analogy.

Wherein, above-mentioned quanta point material can selected from containing Cd class Quantum dots CdS e/ZnS, One in CdSe/CdZnS, or selected from without Cd class quantum dot CuInS2/ZnS.By choosing The quantum dot selecting different-grain diameter can obtain required HONGGUANG, gold-tinted and green glow.Described peak width is repaiied Decorations district can use silica gel to solidify to form with the quanta point material heat of mixing.Described transparent area is respectively provided with expansion The effect of astigmatism, can use scattering silica white sheet.All transparent areas in this utility model are the most excellent Choosing has the effect of light diffusion.

Described scattering silica white sheet is will to solidify shape after white diffuse-reflectance particle and silica gel mix homogeneously Become.Described white diffuse-reflectance particle is used for being scattered incident illumination, generally salt or oxidation Species powder, such as barium sulfate powder, alumina powder, titanium dioxide powder, Zirconium oxide powder etc..

Above-mentioned peak width modified region uses and quanta point material, is because the luminous half-peak breadth of quantum dot about Being 20~30nm, excitation is higher;Compared to fluorescent material, although the stability of fluorescent material is the highest, But the half-peak breadth of fluorescent material is the highest, the half-peak breadth of nitride red fluorescent powder is about 80~90nm. So use quanta point material can improve excitation, but the heat stability of quantum dot is relatively Low, hinder its application on high power density light source, the light-source system of the present embodiment utilizes glimmering Light powder material absorbs blue light and is converted into longer wavelength fluorescence, then is converted into longer through quanta point material Wavelength fluorescent, wherein, the fluorescence that its transmitting wavelength of quantum dot layer absorptance is slightly shorter, energy density Relatively low, and the spot diameter of excitation quantum point layer is slightly larger compared with excitated fluorescent powder layer hot spot, and outer shroud It is relatively large in diameter and adds area of dissipation the most accordingly, so this application mode can greatly reduce thermal effect Should, improve excitation.

Certainly, the regional on the first sub-Wavelength converter 106 and the second sub-wavelength convert dress Putting 107 regionals being correspondingly arranged can also become other angles to set relative to the center of circulus Put.

As it is shown in figure 1, driving means 108 is to have the tumbler of a rotary shaft 1081, example Such as rotation motor.First sub-Wavelength converter 106 and the second sub-Wavelength converter 107 are same Axle is fixed in rotary shaft 1081, and synchronous axial system under the driving of rotary shaft 1081.

In the work process of the light-source system 100 shown in Fig. 1, exciting light sources 101 is produced Raw blue excitation light, through dichroic mirror 102 transmission, incides after lens 103 carry out optically focused On first sub-Wavelength converter 106, and formed such as on the first sub-Wavelength converter 106 Hot spot 101A shown in Fig. 2.First sub-Wavelength converter 106 and the second sub-wavelength convert dress Put 107 under the driving of driving means 108 synchronous axial system, and then make the first sub-wavelength convert Regional on device 106 and the regional on the second sub-Wavelength converter 107 synchronize Rotate.In the first sub-Wavelength converter 106 and rotation of the second sub-Wavelength converter 107 During, each wavelength-converting region on the first sub-Wavelength converter 106 and echo area successively and Periodically it is arranged on the propagation path of blue excitation light produced by exciting light sources 101 so that Blue excitation light is converted into the Stimulated Light of different colours under the effect of each wavelength-converting region successively.No Being reflected by above-mentioned each wavelength-converting region further with the Stimulated Light of color, blue excitation light is anti-by each Penetrate district's reflection, and through lens 103 and 105 and dichroic mirror 102 and 104 groups of reflecting mirror The induction element become incides the second sub-Wavelength converter 107 after guiding, formed as shown in Figure 2 Hot spot 101B.

In induction element, lens 103 and 105 are respectively used to the blueness to Stimulated Light and reflection Exciting light is collected and optically focused, to reduce the angle of divergence of Stimulated Light.Dichroic mirror 102 and reflection Mirror 104 is then used for reflecting Stimulated Light, to change Stimulated Light and to be reflected the blue excitation light of district's reflection The direction of propagation.In the present embodiment, dichroic mirror 102 and reflecting mirror 104 are mutually in 90 degree Arrange, and the incident direction of relative Stimulated Light is 45 degree of settings.In the present embodiment, two to Under the reflection of color mirror 102 and reflecting mirror 104, the direction of propagation of Stimulated Light is translated predetermined Distance and anti-turnback, and hot spot 101A and hot spot 101B fills relative to the first sub-wavelength convert Put 106 and second the center of circulus of sub-Wavelength converter 107 be 180 degree of settings.

Now, due to the first sub-Wavelength converter 106 and the second sub-Wavelength converter 107 It is relatively fixed, and the first sub-Wavelength converter 106 and the second sub-Wavelength converter 107 On the regional that is correspondingly arranged equally relative to the first sub-Wavelength converter 106 and the second wavelet The center of the circulus of long conversion equipment 107 is 180 degree and arranges and synchronous axial system, therefore may be used To guarantee that the emergent light of the regional effect by the first sub-Wavelength converter 106 is through dichroic Incide after mirror 102 and reflecting mirror 104 effect and set accordingly on the second sub-Wavelength converter 107 On the region put, and then obtain the output light of high color purity.Through the second sub-Wavelength converter 107 The output light that effect obtains is further incident upon dodging device 109, to carry out dodging.

In the light-source system 100 of the present embodiment, the first sub-Wavelength converter 106 and the second son Wavelength converter 107 is relatively fixed and is synchronized to drive by same driving means, utilizes guiding simultaneously The regional being correspondingly arranged in two sub-Wavelength converters is synchronized by element, has structure Simply, it is easily achieved and synchronicity advantages of higher.Additionally, each element of induction element is the most sharp Illuminating source keeps static, it is to avoid turn with the first sub-Wavelength converter 106 and the second wavelet length Changing device 107 rotates, and therefore its optical stability is higher.

In the present embodiment, in order to reduce the reflection of red light quantum point material interface, red light quantum point Material segment can use 0 ° of yellowpass+ red light quantum point material structure, wherein through the first son The gold-tinted of Wavelength converter conversion excites red light quantum point material to send out through 0 ° of yellowpass again Penetrate HONGGUANG, red light quantum point material interface reflection gold-tinted and HONGGUANG at 0 ° of yellowpass interface Continue to reflect back, improve gold-tinted utilization rate, increase HONGGUANG light extraction efficiency.Equally, in gold-tinted amount Son point material segment can use 0 ° of greenpass+ gold-tinted quanta point material, green light quantum point material segment Using 0 ° of bluepass+ green light quantum point material, the transparent area of the second sub-Wavelength converter is then 0 ° of bluepass+ is directly used to scatter silica white sheet.By such structure, it is possible to achieve will amount Son point materials application is on high-power blue light source, and takes into account high color purity and specular removal simultaneously.

In the present embodiment, dichroic mirror 102 and reflecting mirror 104 can putting down by other forms Face reflection unit replaces, and lens 103 and 105 then can be by the Optical devices institute of other forms Replace.Such as, lens 105 can be solid or hollow tapered light rod, lens or thoroughly The various forms of optically focused such as mirror group, hollow or solid compound condenser or curved reflector Device.

Additionally, in the present embodiment, the wavelength-converting region on the first sub-Wavelength converter 106 can Being that the first wave length switch region with yellow fluorescent powder, the second wave length with green emitting phosphor turn Changing one or two the combination in any in district, echo area can arrange one or two.Or, Those skilled in the art can be arranged as required to wavelength-converting region and the requisite number of other colors The echo area of amount.Now, the region on the second sub-Wavelength converter 107 is arranged then according to first Produced by regional on sub-Wavelength converter 106, the wavelength of Stimulated Light is joined accordingly Putting, this is not restricted by this utility model.

Refer to the structural representation that Fig. 3, Fig. 3 are the second embodiments of this utility model light-source system Figure.The light-source system 200 of the present embodiment is different from the light-source system 100 shown in Fig. 1 and Fig. 2 Part is, the first sub-Wavelength converter 206 is exciting of being produced by exciting light sources 201 Light wavelength conversion becomes this Stimulated Light of transmission after Stimulated Light, and echo area replaces with transparent area.Through the first son The Stimulated Light of Wavelength converter 206 transmission or exciting light are through lens 203 and 205 and reflection The induction element that mirror 202 and 204 is formed incides the second sub-Wavelength converter after guiding 207 corresponding regionals, and after regional effect, incide dodging device 209.

Additionally, can also only arrange a transparent area at the first sub-Wavelength converter 206, this is saturating Light district is periodically arranged on the propagation path of the exciting light that exciting light sources 201 produces, and transmission This exciting light.Through the exciting light of this transparent area transmission through lens 203 and 205 and reflecting mirror 202 And 204 the induction element formed direct into the second wavelet along the light path identical with Stimulated Light Transparent area on long conversion equipment 207, carries out transmission;And in the second sub-Wavelength converter no longer Arrange and there is the region of gold-tinted quantum dot, the output obtained by this Wavelength converter just containing only There is the output light sequence of red, green, blue three primary colours.

Refer to the structural representation that Fig. 5, Fig. 5 are the 3rd embodiments of this utility model light-source system Figure.The light-source system 300 of the present embodiment is different from the light-source system 100 shown in Fig. 1 and Fig. 2 Part is, the exciting light that the exciting light sources 301 of the present embodiment produces is by fly's-eye lens 303 After carrying out optically focused with 304 and condenser lens 305, the light inlet through reflection unit 302 incides Wavelength converter 306.Stimulated Light or exciting light through the first sub-Wavelength converter 306 reflection Through reflexing to the in semielliptical shape or in hemispherical and light reflection surface reflection unit 302 inwardly Two sub-Wavelength converters 307.The Stimulated Light acted on through the second sub-Wavelength converter 307 enters one Step into and be mapped to tapered light rod 309.Wherein, when reflection unit 302 is in semielliptical shape, reflection Device 302 can the in the future Stimulated Light of a near focal point of self-reflection device 302 or exciting light Reflex to another near focal point of reflection unit 302.When reflection unit 302 is in time hemispherical, Arranging two point of symmetry symmetrical about this centre of sphere in the position closing on the centre of sphere, reflection unit 302 is substantially Stimulated Light a little or exciting light can also be claimed to reflex to another point of symmetry one pair of which.Additionally, In other embodiments, reflection unit 302 can be not provided with light inlet, now exciting light sources 301 With the both sides that reflection unit 302 is respectively arranged at the first sub-Wavelength converter 306.Exciting light The exciting light that light source 301 produces is produced after can being irradiated to the first sub-Wavelength converter 306 Stimulated Light is transmitted on reflection unit 302 further.

It should be noted that under the reflection of reflection unit 302, laser light light source 301 Hot spot that produced exciting light produces on the first sub-Wavelength converter 306 and Stimulated Light or The hot spot that exciting light produces on the second sub-Wavelength converter 307 turns relative to the first wavelet length The center of the circulus of changing device 306 and the second sub-Wavelength converter 307 is 0 degree of setting, Therefore corresponding on the first sub-Wavelength converter 306 and the second sub-Wavelength converter 307 The regional arranged is also required to long relative to the first sub-Wavelength converter 306 and the second wavelet The center of the circulus of conversion equipment 307 is 0 degree of setting.

Certainly, in other embodiments, by suitable optical facilities, exciting light can be adjusted and exist The hot spot produced on first sub-Wavelength converter 306 and Stimulated Light fill at the second sub-wavelength convert Put the hot spot produced on 307 relative to the first sub-Wavelength converter 306 and the second sub-wavelength convert The center of the circulus of device 307 is arbitrarily angled setting, hence in so that the first sub-wavelength convert Device 306 is relative with the regional of the corresponding setting on the second sub-Wavelength converter 307 Circulus in the first sub-Wavelength converter 306 and the second sub-Wavelength converter 307 Center is arbitrarily angled setting.

Refer to the structural representation that Fig. 6, Fig. 6 are the 4th embodiments of this utility model light-source system Figure.Light-source system 400 and light-source system 300 difference shown in Fig. 5 of the present embodiment exist In, the first sub-Wavelength converter 406 and the second sub-Wavelength converter 407 are by support 408 Coaxial fixing, and axially spaced setting.In the first sub-Wavelength converter 406 and the second wavelet One tapered light rod 409 is set between long conversion equipment 407.Exciting light sources 401 produces Exciting light by fly's-eye lens 403 and 404 and condenser lens 405 carry out after optically focused through reflection dress The light inlet putting 402 incides the first sub-Wavelength converter 406.Fill through the first sub-wavelength convert Stimulated Light or the exciting light of putting 406 reflections incide reflection unit 402 and reflect.Through anti- Stimulated Light or the exciting light of injection device 402 reflection initially enter lamp guide 409, lamp guide 409 Stimulated Light and exciting light are collected, to reduce the angle of divergence of Stimulated Light and exciting light.Through leaded light Stimulated Light or exciting light after rod 409 leaded lights incide on the second sub-Wavelength converter 407, Make Stimulated Light or the exciting light incident angle on the second sub-Wavelength converter 407 less, carry High conversion efficiency.In the present embodiment, lamp guide 409 can also be capable of above-mentioned by other The Optical devices of function replace.Additionally, in the present embodiment, the first sub-Wavelength converter 406 If transmission-type, reflection unit 402 can omit, and now Stimulated Light or exciting light are directly through One sub-Wavelength converter 406 is transmitted to lamp guide 409.

Refer to the structural representation that Fig. 7, Fig. 7 are the 5th embodiments of this utility model light-source system Figure.The light-source system 500 of the present embodiment is different from the light-source system 100 shown in Fig. 1 and Fig. 2 Part be, the first sub-Wavelength converter 506 of the present embodiment in tubular structure, wavelength convert District and echo area are arranged on the lateral wall of this tubular structure.The second sub-wavelength convert of the present embodiment Device 507 for circulus and is coaxially fixed with this tubular structure.First sub-Wavelength converter 506 and second sub-Wavelength converter 507 be the most coaxially fixed on the rotation of driving means 508 On axle, and coaxial and synchronous axial system under the driving of driving means 508.

In the work process of the light-source system 500 of the present embodiment, exciting light sources 501 is produced Raw exciting light is through dichroic mirror 502 transmission, and incides the after lens 503 carry out optically focused On the lateral wall of one sub-Wavelength converter 506.The outside of the first sub-Wavelength converter 506 Exciting light is converted into Stimulated Light by the wavelength-converting region on wall, and reflects this Stimulated Light;Echo area is anti- Penetrate exciting light.Through first sub-Wavelength converter 506 reflection Stimulated Light or exciting light through lens 503 and 504 and the induction element that formed of dichroic mirror 502 guide after incide the second wavelet Long conversion equipment 507.Peak width modified region and transparent area on second sub-Wavelength converter 507 set It is placed in the outside of the tubular structure of the first sub-Wavelength converter 506, and then can receive and be excited Light or exciting light to improving excitation after Stimulated Light or exciting light effect.Through the second sub-wavelength convert The output light sequence obtained after device 507 effect is further incident upon dodging device 509, to carry out Dodging.In other embodiments, the first sub-Wavelength converter 506 can also be by Stimulated Light It is transmitted on the second sub-Wavelength converter 507.

Refer to the sixth embodiment that Fig. 8 and Fig. 9, Fig. 9 are this utility model light-source systems Structural representation, Fig. 9 is the front view of the Wavelength converter in the light-source system shown in Fig. 8. Light-source system 600 and light-source system 200 difference shown in Fig. 3 and Fig. 4 of the present embodiment It is, first sub-Wavelength converter 606 and the second sub-Wavelength converter 607 of the present embodiment For end to end two banded structures, regional is arranged side by side on these two banded structures. In the present embodiment, the first sub-Wavelength converter 606 farther includes to depend on side by side and from top to bottom What sequence was arranged the have first wave length switch region of yellow fluorescent powder, the first echo area, have green glimmering The second wave length switch region of light powder and the second echo area, the second sub-Wavelength converter 607 then wraps Include arrange side by side and the most sequentially the first peak width modified region with red light quantum point, have Second peak width modified region of green light quantum point, have gold-tinted quantum dot the 3rd peak width modified region and Transparent area.

At the first sub-Wavelength converter 606 and the second sub-Wavelength converter 607 suitable Reciprocal linear translation is carried out under the driving of driving means (such as, linear motor), so that the First wave length switch region on one sub-Wavelength converter 606, the first echo area, second wave length turn Change district and the second echo area to be periodically arranged at blue light produced by exciting light sources 601 and excite On the propagation path of light.Wherein, each wavelength-converting region is by blue light exciting light conversion incident thereon Become the Stimulated Light of corresponding color and reflect, the first echo area and the second echo area then reflect into It is mapped to blue light exciting light thereon.Through first sub-Wavelength converter 606 reflection after Stimulated Light or Exciting light is through drawing that lens 603 and 605, dichroic mirror 602 and reflecting mirror 604 are formed Guiding element incides the respective regions on the second sub-Wavelength converter 607, through each peak width after guiding Outgoing behind modified region and transparent area effect, and co-incident is to dodging device 609, to carry out even light Process.First sub-Wavelength converter 606 and the second sub-Wavelength converter 607 of the present embodiment Structure can be applied equally to, in other embodiments above-described, not repeat them here.

This utility model further provides for a kind of by the sub-wavelength convert of first in above-mentioned light-source system Wavelength converter that device and the second sub-Wavelength converter are formed and use above-mentioned light source system The projection arrangement of system.

In sum, Wavelength converter of the present utility model and light-source system use wavelength slightly shorter Fluorescence excitation quanta point material is converted into the fluorescence that wavelength is slightly grown, thus greatly reduces quanta point material The heat being directly stimulated by blue light and produce, conversion efficiency is high;The half-peak of quanta point material luminescence simultaneously Width, excitation is higher, the advantage having specular removal and high color purity concurrently.

The foregoing is only embodiment of the present utility model, not thereby limit of the present utility model specially Profit scope, every equivalent structure utilizing this utility model description and accompanying drawing content to be made or equivalence Flow process converts, or is directly or indirectly used in other relevant technical fields, is the most in like manner included in this In the scope of patent protection of utility model.

Claims (14)

1. a Wavelength converter, it is characterised in that including:
First sub-Wavelength converter, described first sub-Wavelength converter at least includes the first wave length switch region being provided with phosphor material powder;
Second sub-Wavelength converter, described second sub-Wavelength converter at least includes the first peak width modified region with quanta point material with the corresponding setting in described first wave length switch region;
The peak wavelength of described phosphor material powder luminescence is less than the peak wavelength of described quanta point material luminescence;
Driving means, described first sub-Wavelength converter is relatively fixed with described second sub-Wavelength converter, and described driving means drives described first sub-Wavelength converter and described second sub-Wavelength converter property synchronizing cycle motion.
Wavelength converter the most according to claim 1, it is characterized in that, described first sub-Wavelength converter includes being provided with the first wave length switch region of yellow fluorescence powder material, is provided with the first echo area of reflective particle, is provided with the second echo area of reflective particle;Described second sub-Wavelength converter include with described first wave length switch region, the first peak width modified region with red light quantum point material of the corresponding setting in the first echo area and the second echo area, there is the second peak width modified region of green light quantum point material, transparent area.
Wavelength converter the most according to claim 1, it is characterised in that described first sub-Wavelength converter includes being provided with the first wave length switch region of yellow fluorescence powder material, the first transparent area, the second transparent area;Described second sub-Wavelength converter includes the first peak width modified region with red light quantum point material with described first wave length switch region, the first transparent area and the corresponding setting of the second transparent area, has the second peak width modified region of green light quantum point material, transparent area.
4. according to the Wavelength converter described in Claims 2 or 3, it is characterised in that described first sub-Wavelength converter also includes the second wave length switch region being provided with green emitting phosphor material;Described second sub-Wavelength converter farther includes to be provided with the 3rd peak width modified region of gold-tinted quanta point material, described second wave length switch region and the described 3rd corresponding setting in peak width modified region.
Wavelength converter the most according to claim 1, it is characterized in that, the quanta point material surface configuration of described first peak width modified region has the first filter coating, described first filter coating allows the emergent light transmission of the first wave length switch region less than predetermined angular, more than the emergent light reflection of the first wave length switch region of predetermined angular, and reflect other coloured light different from first wave length switch region emergent light wavelength.
Wavelength converter the most according to claim 4, it is characterized in that, the surface of red light quantum point material, green light quantum point material, gold-tinted quanta point material and transparent area on described second sub-Wavelength converter is respectively arranged with the first filter coating, the second filter coating, the 3rd filter coating, the 4th filter coating;
Described first filter coating allows the gold-tinted transmission less than predetermined angular, reflects more than the gold-tinted of predetermined angular, and reflects other coloured light;
Described second filter coating and described 4th filter coating allow the blue light transmission less than predetermined angular, more than the blu-ray reflection of predetermined angular, and reflect other coloured light;
Described 3rd filter coating allows the green light transmission less than predetermined angular, more than the green reflection of predetermined angular, and reflects other coloured light.
Wavelength converter the most according to claim 1, it is characterised in that described first sub-Wavelength converter and described second sub-Wavelength converter are co-axially fixed two circuluses.
Wavelength converter the most according to claim 7, it is characterized in that, the regional in described first sub-Wavelength converter is 0 degree or 180 degree setting with the regional in its corresponding described second sub-Wavelength converter arranged relative to the center of said two circulus.
9. a light-source system, it is characterised in that described light-source system includes:
Exciting light sources, for producing an exciting light;
Wavelength converter according to any one of claim 1-6;
Described Wavelength converter is under driving means drives, make described first sub-Wavelength converter and described second sub-Wavelength converter property synchronizing cycle motion, and described first sub-Wavelength converter is arranged on the propagation path of described exciting light, and then the first output light sequence that the first output light that described exciting light is converted to be alternately produced is formed;
Induction element, is positioned on the propagation path of described first output light, is incident in described second sub-Wavelength converter for being guided by the first output light, make described second sub-Wavelength converter produce the second output light;
Described first sub-Wavelength converter is with the property synchronizing cycle motor process of described second sub-Wavelength converter, and the periodically output of described light-source system is exported, by second, the second output light sequence that light is formed;
Any time, the wavelength of described first output light is both less than the wavelength of described second output light.
Light-source system the most according to claim 9, it is characterised in that described first sub-Wavelength converter and described second sub-Wavelength converter are co-axially fixed two circuluses.
11. light-source systems according to claim 10, it is characterized in that, regional in described first sub-Wavelength converter is that special angle is arranged with the regional in its corresponding described second sub-Wavelength converter arranged relative to the center of said two circulus, and described induction element is arranged so that the hot spot that described exciting light is formed on described first sub-Wavelength converter exports the hot spot that light formed on described second sub-Wavelength converter and also arranges in described special angle relative to the center of said two circulus with described first;Described special angle is 0 degree or 180 degree.
12. according to the light-source system according to any one of claim 9-11, it is characterized in that, described induction element includes at least one reflection unit, described first output light sequence is reflected by described reflection unit, to change the direction of propagation of described first output light sequence, described reflection unit is plane reflection device or is in semielliptical shape or in hemispherical and light reflection surface reflection unit inwardly.
13. light-source systems according to claim 9, it is characterised in that described exciting light sources produces blue light.
14. 1 kinds of projection arrangements, it is characterised in that described projection arrangement includes the light-source system described in claim 9-13 any one.
CN201620034758.1U 2016-01-14 2016-01-14 Wavelength converters , light source system and projection arrangement CN205539893U (en)

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Patentee after: Shenzhen Guangfeng Polytron Technologies Inc

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Address before: 518000 Nanshan District, Shenzhen, Guangdong, Guangdong Province, Guangdong Road, 63 Xuefu Road, high-tech zone, 21 headquarters building, 22 floor.

Patentee before: Shenzhen Guangfeng Polytron Technologies Inc