CN106842790B

CN106842790B - Light-source system and relevant projecting system

Info

Publication number: CN106842790B
Application number: CN201611109532.4A
Authority: CN
Inventors: 胡飞; 李屹
Original assignee: Appotronics Corp Ltd
Current assignee: Shenzhen Appotronics Corp Ltd; Shenzhen Appotronics Technology Co Ltd
Priority date: 2012-09-28
Filing date: 2012-09-28
Publication date: 2019-01-08
Anticipated expiration: 2032-09-28
Also published as: CN106842790A; CN103713455A; CN103713455B

Abstract

The embodiment of the invention discloses a kind of light-source systems, comprising: light emitting device, for being sequentially emitted the first light and the second light；Beam splitting system, the first light for selfluminous device in future is divided into the first range of wavelength light and the second range of wavelength light being emitted respectively along the first optical channel and the second optical channel, and at least partly light for being also used to the second light of selfluminous device in future is emitted along the first optical channel；First spatial light modulator, for being modulated to the beam splitting system along the light that the first optical channel is emitted；Second space optical modulator, for being modulated to the beam splitting system along at least partly light that the second optical channel is emitted.The present invention provides a kind of light-source system for having both luminous efficiency and lower cost.

Description

Light-source system and relevant projecting system

The application be applicant submitted on 09 28th, 2012 application No. is 201210370655.9, denomination of invention For the divisional application of " light-source system and relevant projecting system ".

Technical field

The present invention relates to illumination and field of display technology, more particularly to a kind of light-source system and its relevant projecting system.

Background technique

In existing one chip DMD (Digital Micromirror Device, digital micromirror elements) system, Duo Geji Coloured light alternately enters DMD (DMD) and is modulated by it, and the monochromatic light image modulated quickly alternately switches on the screen, in turn The monochromatic light image blend of each timing is formed into color image together using the persistence of vision effect of human eye.And the prior art In, generally it is modulated using R (red, feux rouges), G (green, green light), B (blue, blue light) three primary colours light.It is most common The way for obtaining three primary colours sequential light is that exciting light is used successively to excite the different segmentations on colour wheel to be successively emitted different colours Light.In this configuration, excitation light source is swashed using blue led (Light Emitting Diode, light emitting diode) or blue Light.There are three subregions for tool on colour wheel, and a subregion is provided with transparent area, for transmiting blue light；Another two subregion is respectively arranged with Green light fluorescent powder and red light fluorescent powder are respectively used to absorb exciting light and generate green stimulated light and red stimulated light.

But in this phosphor source, red fluorescence powder be limiting light source working life and luminous efficiency one A bottleneck.The light conversion efficiency of red light fluorescent powder is not high, wherein the energy lost is all converted to heat, leads to the temperature of fluorescent powder Rapid increase will affect its luminous efficiency and service life again in turn, form vicious circle.

Summary of the invention

The invention mainly solves the technical problem of providing a kind of light-source systems for having both luminous efficiency and lower cost.

The embodiment of the present invention provides a kind of light-source system, comprising:

Light emitting device, for being sequentially emitted the first light and the second light；

Beam splitting system, the first light for selfluminous device in future is divided into be gone out along the first optical channel and the second optical channel respectively The the first range of wavelength light and the second range of wavelength light penetrated, are also used at least partly light edge of the second light of selfluminous device in future The outgoing of first optical channel；

First spatial light modulator, for being modulated to the beam splitting system along the light that the first optical channel is emitted；

Second space optical modulator, for being adjusted to the beam splitting system along at least partly light that the second optical channel is emitted System.

The embodiment of the present invention also provides a kind of optical projection system, including above-mentioned light-source system.

Compared with prior art, the present invention include it is following the utility model has the advantages that

First light is divided into the first range of wavelength light and the second range of wavelength light, and two range of wavelength by the present invention The outgoing of at least partly light sequential of light and the second light, in this way, some period is only emitted two light beams, another period is only emitted a branch of Light beam, so that can be modulated using two spaces optical modulator to three light beams；And the present invention, which can use, to be had The stimulated light that the wavelength conversion material of high light transfer efficiency generates is divided into the wavelength that another two has lower light conversion efficiency The color of light of transition material, to improve the efficiency of light source.

Detailed description of the invention

Fig. 1 is the yellow spectrum that yellow fluorescent powder generates；

Fig. 2 is the schematic diagram of one embodiment of light-source system of the invention；

Fig. 3 A is a kind of embodiment of the timing diagram of 203 emergent light of wavelength conversion layer；

Fig. 3 B and Fig. 3 C are respectively a kind of embodiment of DMD 211 and DMD 213 to the modulation time diagram of different color light；

Fig. 4 is another embodiment of DMD 213 to the modulation time diagram of feux rouges；

Fig. 5 is the schematic diagram of another embodiment of light-source system of the invention；

Fig. 6 is the schematic diagram of another embodiment of light-source system of the invention；

Fig. 7 is the schematic diagram of another embodiment of light-source system of the invention；

Fig. 8 is the main view of one embodiment of colour wheel 703 in Fig. 7；

Fig. 9 is the main view of another embodiment of the first light-dividing device 609 in Fig. 6；

Figure 10 is the schematic diagram of another embodiment of light-source system of the invention；

Figure 11 is a kind of schematic diagram of light-source structure for being fixedly connected with wavelength conversion layer with the first light-dividing device；

Figure 12 is the schematic diagram of another embodiment of light-source system of the invention；

Figure 13 A is the timing diagram that wavelength conversion layer 1203 is emitted blue light and yellow light；

Figure 13 B and Figure 13 C are respectively the modulation time diagram of DMD1211 and DMD1213 to different color light；

Figure 14 is the schematic diagram of the illuminating source of another embodiment of light-source system of the invention；

Figure 15 is the structural schematic diagram of the illuminating source group in embodiment shown in Figure 14；

Figure 16 is the schematic diagram of the another embodiment of light-source system of the invention；

Figure 17 A is the color timing diagram of light-source system emergent light shown in Figure 16；

Figure 17 B and Figure 17 C are respectively the modulation time diagram of DMD1611 and DMD1613 to different color light；

Figure 18 is the schematic diagram of the another embodiment of light-source system of the invention；

Figure 19 is one embodiment of the main view of the filtering apparatus in light-source system shown in Figure 18；

Figure 20 is the light-source system of two light sources of light-source system shown in Figure 18 and the modulation timing figure of two DMD；

Figure 21 is another embodiment of the main view of the filtering apparatus in light-source system shown in Figure 18；

Figure 22 is the schematic diagram of the another embodiment of light-source system of the invention；

Figure 23 is the main view of the filtering apparatus in light-source system shown in Figure 22；

Figure 24 is the schematic diagram of the illuminating source of another embodiment of light-source system of the invention；

Figure 25 is the light-source system of three light sources of light-source system shown in Figure 24 and the modulation timing figure of two DMD；

Figure 26 is the schematic diagram of the illuminating source of another embodiment of light-source system of the invention；

Figure 27 is the light-source system of four light sources of light-source system shown in Figure 26 and the modulation timing figure of two DMD；

Figure 28 is the schematic diagram of the illuminating source of another embodiment of light-source system of the invention；

Figure 29 is one embodiment of the main view of the wavelength conversion layer in light-source system shown in Figure 28；

Figure 30 is a kind of working sequence of light-source system shown in Figure 28；

Figure 31 is the schematic diagram of the illuminating source of another embodiment of light-source system of the invention；

Figure 32 is the structural schematic diagram of one embodiment of light-source system of the invention；

Figure 33 is the structural schematic diagram of another embodiment of light-source system of the invention.

Specific embodiment

Invention thinking of the invention includes: that the first light and the second light are sequentially emitted by light emitting device, passes through beam splitting system First light is divided into the two beam different wavelength range light along different propagateds, in this way, being emitted two respectively not in a certain period For co-wavelength range light to two spaces optical modulator, another period is emitted at least partly light of the second light to the two spatial light tune It one in device processed, is modulated so that can not be shared the same light with two spaces optical modulator to three beams；At the same time it can also pass through by The be stimulated yellow stimulated light of generation of the yellow fluorescent powder of light conversion efficiency with higher is divided into feux rouges and green light, to keep away Exempt to generate feux rouges using the lower red light fluorescent powder of light conversion efficiency, to improve the efficiency of light-source system.

As shown in Figure 1, Fig. 1 is a specific example of the yellow spectrum that yellow fluorescent powder generates.As can be seen from Figure, fluorescence The spectrum for the yellow light that powder generates is wider, covers the spectrum of green light and the spectrum of feux rouges.Therefore, can be divided yellow light becomes green light And feux rouges.For ease of description, the spectrum of below-mentioned yellow light covers red color light component and green color components, yellow light can be through filtering Electro-optical device is divided into feux rouges and green light along different propagateds.

The embodiment of the present invention is described in detail with embodiment with reference to the accompanying drawing.

Embodiment one

Referring to Fig. 2, Fig. 2 is the schematic diagram of one embodiment of light-source system of the invention.The light source system of the embodiment System 200 includes light emitting device 1, beam splitting system 2, the first spatial light modulator 211 and second space optical modulator 213.

Light emitting device 1 includes the excitation light source 201, wavelength conversion layer 203 and first driving device for generating exciting light 205.Wavelength conversion layer 203 includes the first subregion and the second subregion, is provided with first wave length transition material on first subregion, is used In absorption exciting light and it is emitted the first light；It is provided with transparent area on second subregion, for transmiting exciting light, which is the Two light.In the present embodiment, excitation light source 201 is for generating blue excitation light.Excitation light source 201 is preferably laser light source, It can be LED or other solid state light emitters.It is provided with yellow fluorescent powder on the first subregion on wavelength conversion layer 203, for inhaling It receives exciting light and generates yellow stimulated light, this is the first light；It is transparent area on second subregion, for transmiting blue light, this is second Light.Wavelength conversion layer 203 is in the form of annular discs, and the different subregions on wavelength conversion layer are circumferentially distributed along the disk.

First driving device 205 is for driving wavelength conversion layer 203, so that exciting light is formed on wavelength conversion layer 203 Hot spot act on wavelength conversion layer 203 by predefined paths so that the exciting light is sequentially radiated at the first subregion and the second subregion On, so that the first light and the second light are sequentially emitted.In the present embodiment, first driving device 205 is motor, for driving wavelength 203 periodic rotary of conversion layer.

Beam splitting system 2 is divided into for the first light of selfluminous device in future 1 along the first optical channel and the outgoing of the second optical channel The first range of wavelength light and the second range of wavelength light；It is also used at least partly light edge of the second light of selfluminous device in future 1 The outgoing of first optical channel.First spatial light modulator 211 is for adjusting beam splitting system 2 along the light that the first optical channel is emitted System.Second space optical modulator 213 is for being modulated beam splitting system 2 along at least partly light that the second optical channel is emitted.Through The light that first spatial light modulator 211 and second space optical modulator 213 are modulated carries out light combination and enters view field.

In the present embodiment, yellow light is divided into green light, i.e. the first range of wavelength light and feux rouges by beam splitting system 2, i.e., and second Range of wavelength light.It is clear to describe, in following citing, when the first smooth yellow light is divided into green light and feux rouges, wherein the first range Wavelength light and the second range of wavelength light are not necessarily green light and feux rouges respectively, two kinds of range light only relative concept, first Range of wavelength light and the second range of wavelength light can also be feux rouges and green light respectively.

First spatial light modulator 211 is for being modulated the blue light and green light of timing, second space optical modulator 213 For being modulated to feux rouges.Since the transfer efficiency of yellow fluorescent powder is higher, and blue light is directly generated by luminescent device, therefore Yellow fluorescent powder is excited with blue light and is generated three primary colours and is made the efficiency of light source higher.

For concrete example, beam splitting system 2 includes TIR (Total Internal Reflection, total internal reflection) prism 207 and 209 combination.Two prisms are triangulo column, wherein the side of the first prism 207 is 207a, 207b and 207c, the The side of two prisms 209 is 209a, 209b and 209c；The wherein side of the side 207c of the first prism 207 and the second prism 209 209c connects.

The stimulated light 23 that wavelength conversion layer 203 is emitted enters the prism from the side 207b of the first prism 207, and in side It is totally reflected on 207a, is transmitted into the second prism 209 simultaneously from the side 209c of the second prism 209 after side 207c transmission It reaches on the 209a of side.Side 209a be coated surface, be coated with filter coating thereon, the filter coating transmit feux rouges, and reflect blue light and Green light.The blue light and green light that timing generates are totally reflected on the 209c of side again after coated surface 209a reflection, and in side It is transmitted on 209b to enter the first spatial light modulator 211 from the first optical channel.Blue light and green light after modulated is with another angle Degree incident side 209b is simultaneously transmitted, and is totally reflected on the 209c of side, then from side after coated surface 209a reflection 209c is transmitted and is transmitted away from the first prism 207.And feux rouges enters second from the second optical channel after coated surface 209a transmission Spatial light modulator 213.Feux rouges after modulated is successively transmitted from the second prism 209 and the first prism 207, and modulated Green light is combined into light beam.

Spatial light modulator can be DMD, be also possible to the other kinds of spatial light modulator such as liquid crystal.For convenience of saying It is bright, it is all made of DMD in the examples below as an example.

As shown in Figure 3A, Fig. 3 A is a kind of embodiment of the timing diagram of 203 emergent light of wavelength conversion layer.In the present embodiment In, the first subregion on wavelength conversion layer 203 accounts for 270 degree, and the second subregion accounts for 90 degree.From the second subregion of wavelength conversion layer 203 The input path for initially entering exciting light starts, within the cycle T time that wavelength conversion layer 203 rotates, the work of light-source system It is as follows to make process.In preceding 0.25T, wavelength conversion layer 203 is emitted blue light, and in rear 0.75T, wavelength conversion layer 203 is emitted Huang Light.Correspondingly, DMD 211 is not used for modulating light beam for modulating blue light, DMD 213 in preceding 0.25T.DMD in 0.75T afterwards 211 for modulating green light, and DMD 213 is for modulating feux rouges.As shown in Fig. 3 B and Fig. 3 C, Fig. 3 B and Fig. 3 C are respectively DMD 211 With DMD 213 to a kind of embodiment of the modulation time diagram of different color light.In this case, in each cycle T feux rouges and Green light is utilized entirely, so that the utilization of light source is most efficient.However, this may not be actual conditions, because this may cause this The chromaticity coordinates for the white light that three primary colours light mixes and predetermined chromaticity coordinates have deviation.In practice, it can be somebody's turn to do by utilizing Two DMD make up to satisfaction to the length of the modulation time of different colours light to control the chromaticity coordinates of white light.For example, in this reality It applies in example, causes the chromaticity coordinates of white light partially red if feux rouges is excessive, the modulation time that can control DMD 213 shortens, and makes Obtaining the feux rouges in certain period of time is invalid light.As shown in figure 4, Fig. 4 is that DMD 213 modulates the another of time diagram to feux rouges Kind embodiment.In Fig. 4, the hindfoot portion of feux rouges is rejected in each cycle T.It, can also be by feux rouges in practice Leading portion give up, or intermediate one end or several sections are given up, what this all will be appreciated that.

In addition, ratio shared by above first subregion and the second subregion is only illustrated, it is not limiting as its actual ratio.In reality Border can determine the proportion of the first subregion and the second subregion in using according to actual needs.

In the present embodiment, light emitting device is sequentially emitted the first light and the second light, and is divided the first light by beam splitting system At the two beam different wavelength range light along different propagateds, in this way, being emitted two different wavelength ranges respectively in a certain period For light to two spaces optical modulator, another period is emitted one of at least partly light of the second light into the two spatial light modulators It is a, it is modulated so that can not be shared the same light with two spaces optical modulator to three beams.

In practice, the optical filtering curve on the coated surface 209a in TIR prism 209 in beam splitting system 2 can also be with It is transmission green light and blue light, and reflects feux rouges, in this case, DMD 211 is for modulating feux rouges, and DMD 213 is for modulating Green light and blue light；Or the optical filtering curve on coated surface 209a is changed to transmission green light, and reflects feux rouges and blue light；Then 211 DMD For modulating feux rouges and blue light, DMD 213 is for modulating green light.Coated surface can be designed according to actual needs in practice The optical filtering curve of 209a.

The example that optical path of the above stimulated light in two pieces of TIR prisms is only enumerated for convenience of description, is not intended to limit TIR Other usages of prism.

In the above embodiments, carry out while realizing the light splitting of green color components and red color light component in yellow light using two pieces of prisms And the light combination of the light beam after two spaces light modulator modulates.In practice, light splitting optical filter also can be used Yellow light is divided, and light combination is carried out to its modulated light beam using optical filter in the optical path rear end of two DMD.

Embodiment two

As shown in figure 5, Fig. 5 is the schematic diagram of another embodiment of light-source system of the invention.In the present embodiment, light source System 500 includes light emitting device 1, beam splitting system 2, the first spatial light modulator 511 and second space optical modulator 513.It shines Device 1 includes excitation light source 501, wavelength conversion layer 503 and first driving device 505.

Include: in place of the difference of the present embodiment and embodiment illustrated in fig. 2

Beam splitting system 2 includes optical filter 509 and reflecting mirror 507.Optical filter 509 is for receiving wavelength conversion layer 503 sequentially The yellow light 53 and blue light 55 of outgoing, and transmit the green light 53a in blue light 55 and yellow light 53 and be emitted to DMD511 from the first optical channel, And the feux rouges 53b in yellow light 53 is reflected to reflecting mirror 507, reflecting mirror 507 reflects feux rouges 53b and is emitted to from the second optical channel DMD513。

Preferably, light-source system 500 further includes the optical filter being respectively arranged on the emitting light path of DMD511 and DMD513 515 with reflecting mirror 517.Reflecting mirror 517 is used for the blue light through the modulated timing of DMD511 and green reflection to optical filter 515.Optical filter 515 is used to reflect the feux rouges of blue light and green light and transmission from DMD513 from reflecting mirror 517, by DMD The light beam of the modulation outgoing of 511 and DMD 513 is combined into light beam.It is understood that in other embodiments, setting can be passed through The light-emitting angle of DMD 511 and DMD 513, so that the two-beam convergence that DMD511 and DMD513 are emitted respectively is light beam；This Outside, in some applications, it is also not necessary to the two-beams for being emitted DMD511 and DMD513 respectively to converge as light beam, Therefore reflecting mirror 517 is dispensed with optical filter 515.

Embodiment three

Referring to Fig. 6, Fig. 6 is the schematic diagram of another embodiment of light-source system of the invention.In the present embodiment, light source System 600 includes light emitting device 1, beam splitting system 2, the first spatial light modulator 611 and second space optical modulator 613.It shines Device 1 includes excitation light source 601, wavelength conversion layer 603 and first driving device 605.

Include: in place of the difference of the present embodiment and embodiment illustrated in fig. 5

Beam splitting system 2 includes the first light-dividing device 609, the second driving device 607 and first control device (not shown).For The utilization rate of the emergent light of light emitting device 1 is improved, light-source system 600 further includes being set between light emitting device 1 and beam splitting system 2 Optical path on collecting lens 615, for collecting the yellow light 63 and blue light 65 that light emitting device is sequentially emitted, and will be in the light of collection After to the first light-dividing device 609.First light-dividing device 609 is in the form of annular discs, and is circumferentially divided into the first section and the second section.The Two driving devices 607 are for driving the rotation of the first light-dividing device, so that the first section and the second section are sequentially in light emitting device 1 Emitting light path on.First control device controls the rotation of first driving device 605 and the second driving device 607, so that first Light-dividing device 609 and wavelength conversion layer 603 rotate synchronously, so that the first section is located at the first light, the i.e. emitting light path of yellow light 63 On, the second section is located at the second light, i.e., on the emitting light path of blue light 65.

The green light that the first section on first light-dividing device 609 is used to transmit in yellow light 63 is emitted to from the second optical channel DMD 613 and the feux rouges reflected in yellow light 63 are emitted to DMD 611 from the first optical channel, the second section for reflect blue light 65 from First optical channel is emitted to DMD 611.Certainly, the first section reflection feux rouges can also be made in practice and transmits green light； Alternatively, the second section can also be with transmissive portion blue light and reflective portion blue light, wherein this two beams blue light of the transmission and reflection can To be modulated respectively by DMD 611 and DMD 613, can also only modulate wherein a branch of in this two beam.

Example IV

Referring to Fig. 7, Fig. 7 is the schematic diagram of another embodiment of light-source system of the invention.

In the present embodiment, light-source system 700 include light emitting device 1, beam splitting system 2, the first spatial light modulator 711 with Second space optical modulator 713.Light emitting device 1 includes excitation light source 701, wavelength conversion layer 703B and first driving device 705. Beam splitting system 2 includes the first light-dividing device 703A and light directing arrangement 3.

Include: in place of the difference of the present embodiment and embodiment illustrated in fig. 6

In the present embodiment, wavelength conversion layer 703B and the first light-dividing device 703A are fixedly connected, and are co-located on colour wheel On 703.As shown in figure 8, Fig. 8 is the main view of one embodiment of colour wheel 703 in Fig. 7.There are two with one heart for setting on colour wheel 703 It is arranged and mutually nested circle ring area 703A and 703B, wherein annulus 703A is splitting area, i.e. the first light-dividing device；Annulus 703B is wavelength-converting region, i.e. wavelength conversion layer.It include the first section S1 in the 703A of splitting area, for transmiting green light to the first light Channel outgoing, and reflect feux rouges to the second optical channel and be emitted；Splitting area 703A further includes the second section S2, for transmiting blue light extremely The outgoing of first optical channel.Wavelength-converting region 703B includes the first subregion W1, yellow wavelengths transition material is provided with, for generating Huang Color stimulated light, the subregion cricoid center opposite with the first section S1 in the 703A of splitting area are arranged in 180 degree；It further include second Subregion W2, is provided with transparent area, and for transmiting blue light, the subregion is opposite with the second section S2 in the 703A of splitting area, and this is cricoid Center is arranged in 180 degree.First driving device 705 is for driving colour wheel 703 to rotate, so that the first subregion W1 and the second subregion W2 Sequentially on the emitting light path of light emitting device 1.

Light directing arrangement 3 is used for the sequential light of the first subregion W1 and the second subregion W2 outgoing on wavelength conversion layer 703B It is separately directed on the first section S1 and the second section S2 on the first light-dividing device 703A.Specific explanations are as follows.

In the present embodiment, light directing arrangement 3 includes lens 707, reflecting mirror 709 and 715.One rotated in colour wheel 703 In a cycle T, within the preceding t1 time, the exciting light 71 that excitation light source 701 generates is incident on first on the 703B of wavelength-converting region Subregion W1 is simultaneously emitted yellow light, and emergent light 73 is emitted from wavelength-converting region 703B backwards to the side of exciting light, and is collected through lens 707 It is successively reflected afterwards by reflecting mirror 709 and 715 and on the first section S1 for being incident on the 703A of splitting area with 45 degree, it is green in yellow light Light ingredient and red color light component transmit through the first section S1 respectively and reflect and be emitted to DMD 711 and edge along the first optical channel respectively Second optical channel is emitted to DMD713.

Afterwards in the t2 time, exciting light 71 is incident on the second subregion W2 and is emitted blue light, guides through light directing arrangement 3 with 45 degree Angle is incident on the second section S2, is incident to DMD 711 from the second optical channel after transmiting.Exciting light 71 is on the 703A of splitting area The line of the hot spot A of the formation and hot spot B formed on the 703B of wavelength-converting region is by ring heart.Certainly, in practice, out The incidence angle for penetrating light 73 into splitting area 703A may not be 45 degree but other are greater than 0 angle, this can be according to practical need It designs.

In this way, comparing light-source system shown in fig. 6, wavelength conversion layer and the first light-dividing device can be rotated synchronously, this two The synchronism of person is more preferable, and does not need control device to control its synchronization, reduces cost and light source volume.

Embodiment five

Referring to Fig. 9, Fig. 9 is the main view of another embodiment of the first light-dividing device 609 in Fig. 6.With it is shown in fig. 6 Unlike light-source system, the first light-dividing device 609 in the present embodiment includes three sections.First section R1 is red for transmiting Light to the first optical channel is emitted, and is reflected green light to the second optical channel and be emitted.Second section R2 is for transmiting green light to the first light Channel outgoing, and reflect feux rouges to the second optical channel and be emitted.Third section is emitted for transmissive portion blue light to the first optical channel, And reflective portion blue light to the second optical channel is emitted.

Correspondingly, first control device is for controlling the first light-dividing device 609, so that the first section R1 and the second section R2 is located on the emitting light path of the first light, third section R3 on the emitting light path of the second light.Specifically, yellow in outgoing In the T of light, the first section R1 is located on the emitting light path of yellow light in preceding part-time t1, the second section R2 in rear part-time t2 On the emitting light path of yellow light, when being emitted blue light, third section R3 is located on the emitting light path of blue light.

In the present embodiment, it is rotated in wavelength conversion layer 603 and generates Y (yellow, yellow), B (blue, blue) sequence light In a cycle, DMD 611 is sequentially received G (green, green), R (red, red), B sequence light, DMD 613 be sequentially received R, G, B sequence light.Therefore, the above various embodiments is compared, two DMD can be respectively received three primary colours sequence light in the present embodiment, And then each DMD can respectively modulate an image, and at any period, two DMD all in working condition, compare more than Embodiment can more fully utilize DMD.

It is easily understood that wavelength conversion layer can also be fixedly connected with the first light-dividing device in the present embodiment.Relatively Ying Di, the first section S1 on splitting area in light-source system shown in fig. 7 on colour wheel 703 need to be divided into the first sub-district and second Sub-district wherein the first sub-district is emitted to DMD 711 for transmiting feux rouges to the first optical channel, and reflects green light to the second optical channel It is emitted to DMD 713；Second sub-district is emitted to DMD 713 for transmiting green light to the first optical channel, and reflects feux rouges to second Optical channel is emitted to DMD 711.

Embodiment six

Light-source system shown in Fig. 7 is one of knot for being fixedly connected with wavelength conversion layer with the first light-dividing device Structure, there are many more other light channel structures in practice.Referring to Fig. 10, Figure 10 is another of light-source system of the invention The schematic diagram of embodiment.In the present embodiment, light-source system 1000 includes light emitting device 1, beam splitting system 2, the first spatial light tune Device 1011 processed and second space optical modulator 1013.Light emitting device 1 includes excitation light source 1001, wavelength conversion layer 1003B and the One driving device 1005.Beam splitting system 2 includes the first light-dividing device 1003A and light directing arrangement 3.Wavelength conversion layer 1003B and First light-dividing device 1003A is fixedly connected, and is co-located on colour wheel 1003.

Include: in place of the difference of the present embodiment and embodiment illustrated in fig. 7

Wavelength-converting region 1003B is set as reflective, i.e. the optical path and emergent light of the incident light of wavelength-converting region 1003B Optical path be located at its same side.And the first subregion W1 on the 1003B of wavelength-converting region and the first section S1 on the 1003A of splitting area It is arranged in 0 degree, the second section S2 on the second subregion W2 and splitting area 1003A is arranged in 0 degree, i.e. light splitting region and corresponding Wavelength conversion region be disposed adjacent.

Light directing arrangement 3 includes reflecting mirror 1007, collecting lens 1009 and 1015 with through-hole.

In the present embodiment, excitation light source 1001 is laser light source, for generating blue laser 101.Reflecting mirror 1007 is set It sets on the emitting light path of blue laser 101.Since the etendue of laser is smaller, and the etendue of stimulated light compared with Greatly, so that blue laser 101 is passed through from the through-hole and entered on the 1003B of wavelength-converting region after collecting lens 1009, and wave The sequence light of long transition zone 1003B outgoing largely reflexes to splitting area by reflecting mirror 1007 after the collection of collecting lens 1009 1003A.The hot spot formed on the hot spot and wavelength-converting region 1003B wherein formed on the 1003A of splitting area is located on colour wheel 1003 Same radius on.Compared to light-source system shown in Fig. 7, the optical path of the light-source system in the present embodiment is more compact.

Embodiment seven

Figure 11 is please referred to, Figure 11 is another light-source structure for being fixedly connected with wavelength conversion layer with the first light-dividing device Schematic diagram.In the present embodiment, light-source system 1100 include light emitting device, beam splitting system 2, the first spatial light modulator 1111 with Second space optical modulator 1113.Light emitting device includes excitation light source 1101, wavelength conversion layer 1103B and first driving device 1105.Beam splitting system 2 includes the first light-dividing device 1103A and light directing arrangement 3.The light splitting dress of wavelength conversion layer 1103B and first It sets 1103A to be fixedly connected, be co-located on colour wheel 1003.

Include: in place of the difference of the present embodiment and embodiment illustrated in fig. 10

Wavelength-converting region 1103A and splitting area 1103B are not mutually nested two circle ring areas.In colour wheel 1103 Heart district domain is provided with a rotary table 1103C, and wavelength conversion layer area 1103B is arranged on the side of rotary table 1103C, and splitting area 1103A is arranged on a circle ring area of colour wheel 1103.Blue laser 111 is sequentially across the through-hole of reflecting mirror 1107 and collection After lens 1109, it is incident on one of section on the 1103B of wavelength-converting region.And the sequence of wavelength-converting region 1103B outgoing Column light 113 is largely reflexed on the 1103A of splitting area and wavelength-converting region by reflecting mirror 1107 after the collection of collecting lens 1109 The corresponding subregion of section where the upper hot spot of 1103B.

Compared to light-source system shown in Fig. 10, since wavelength-converting region 1103B and splitting area 1103A are separated by the present embodiment Farther out, the angle between the sequence light 113 before reflecting mirror 1107 reflects and after reflection is larger, is easier to separate optical path.

In the embodiment above, second wave length transition material has also can be set in the second subregion on wavelength conversion layer, uses In absorption exciting light and it is emitted the second light.For concrete example, excitation light source is for generating UV light.First point of wavelength conversion layer Yellow fluorescent powder is provided in area, for absorbing UV light and generating yellow light；It is provided with blue colour fluorescent powder on second subregion, for inhaling It receives UV light and generates blue light, which is the second light.

Embodiment eight

The schematic diagram of light-source system in the schematic diagram and above embodiments of the light-source system of the present embodiment is essentially the same, no With the second light is also divided into the be emitted respectively along the first optical channel and the second optical channel by beam splitting system in the present embodiment Three range of wavelength light and the 4th range of wavelength light, then the first spatial light modulator is used for the first light being emitted along the first optical channel The first range of wavelength light and the third range of wavelength light of the second light be modulated, and second space optical modulator is used for along the The second range of wavelength light of the first light of two optical channels outgoing is modulated, or is also used to the be emitted along the second optical channel 4th range of wavelength light of two light is modulated.

For example with Fig. 5, excitation light source 501 is for generating UV light.It is provided on first subregion of wavelength conversion layer 503 Yellow fluorescent powder, for absorbing UV light and generating yellow light；It is provided with blue colour fluorescent powder on second subregion, for absorbing UV light and producing Raw blue light, the blue light are the second light.Since the spectrum of the blue light of blue colour fluorescent powder generation is wider, the part of green spectrum is covered Range.Optical filter 509 in beam splitting system is set as the second light i.e. blue light that the second subregion generates being divided into third model simultaneously Enclose wavelength light and the 4th range of wavelength light, i.e. the second blue light and the second green light.In this way, the second blue light and second green light that generate Spectrum is relatively narrow, and excitation purity is higher.

Correspondingly, when the blue stimulated light for generating the second subregion is divided into the second blue light and the second green light, in Fig. 2 Shown in light-source system beam splitting system in, can by the coated surface 209a in the second prism 209 simultaneously be set as reflection blue by Blue light ingredient in laser simultaneously transmits green color components, or transmits blue light ingredient and reflect green color components.Light source shown in Fig. 5 In the beam splitting system of system, optical filter 509 can be set to and meanwhile the second blue light in reflection blue stimulated light and transmit second Green light, or the second blue light of transmission and the second green light of reflection.In above description, for being to the first light and the second light light splitting The same light-dividing device in beam splitting system.

It, can also be respectively with two light-dividing devices respectively to the first light and the second light point in beam splitting system in practice Light.As shown in figure 12, Figure 12 is the schematic diagram of another embodiment of light-source system of the invention.In the present embodiment, light source system System 1200 includes light emitting device 1, beam splitting system 2, the first spatial light modulator 1211 and second space optical modulator 1213.It shines Device 1 includes excitation light source 1201, wavelength conversion layer 1203 and first driving device 1205.

Beam splitting system 2 includes optical filter 1221,1209 and 1207, further includes reflecting mirror 1219.Optical filter 1221 is located at hair Electro-optical device 1 is emitted in the optical path of sequential light, in the second blue light 65b in reflection blue stimulated light and transmitting blue stimulated light The second green light 65a and yellow stimulated light 63.

Optical filter 1209 is located on the emitting light path of 1221 transmitted light beam of optical filter, in transmitting blue stimulated light Two green light 65a and the first green light 63a in yellow stimulated light 63 simultaneously reflect the feux rouges 63b in yellow stimulated light 63.Therefore, it passes through The the second green light 65a and the first green light 63a that optical filter 1209 transmits are emitted to DMD 1211 along the first optical channel.Through optical filter The feux rouges 63b of 1209 reflections is emitted to DMD1213 along the second optical channel after the reflection of optical filter 1207 again, and through optical filter 1221 Second blue light 65b of reflection is emitted to after the reflection of reflecting mirror 1219 and optical filter 1207 transmit along the second optical channel respectively DMD 1213。

When the second blue light 65b and the second green light 65a obtained after the light splitting of blue light 65 is used to modulation, due to two DMD Color for modulation increases, and the colour gamut that two DMD are modulated is bigger.Correspondingly, 1203 He of wavelength conversion layer DMD1211,1213 working timing figure it is as shown in figure 13.Figure 13 A is the timing that wavelength conversion layer 1203 is emitted blue light and yellow light Figure.Within the cycle T time that wavelength conversion layer 1203 rotates, in preceding 0.25T, wavelength conversion layer 1203 is emitted blue light, Afterwards in 0.75T, wavelength conversion layer 1203 is emitted yellow light.As shown in Figure 13 B and Figure 13 C, Figure 13 B and Figure 13 C are respectively DMD1211 With DMD1213 to the modulation time diagram of different color light.Correspondingly, DMD1211 is used to modulate the second green light, DMD in preceding 0.25T 1213 for modulating the second blue light.DMD 1211 is for modulating the first green light in 0.75T afterwards, and DMD 1213 is for modulating feux rouges.

It is easily understood that the second green light can also be not used in modulation, as long as the DMD 1211 when it enters DMD 1211 It does not work, this part light can not be modulated.

All be the difference using optical wavelength in above embodiments, using optical filter or filter coating to light beam carry out transmission and It reflects to carry out light splitting or light combination.And the light in some optical path is transmitted on a light splitting optical filter or is reflected, It can be arbitrarily devised.Therefore, in all embodiments of the invention, different wavelength range light passes through optical filter in each optical path Or the specific optical texture of filter coating, it is provided to facilitate the example for illustrating and enumerating, is not intended to limit and is utilized using other It is divided optical filter or filter coating carries out the optical texture of optical path merging or light beam light splitting.

In the present embodiment, multiple subregions also can be set on wavelength conversion layer 1203, is wherein provided in different subregions Different wave length transition material or transparent area.And the light beam being emitted at least one subregion is split into two kinds of different wave length models The light enclosed is so that two kinds of different wavelength range light are respectively enterd and are modulated in two spaces optical modulator.

In the present embodiment, the wavelength convert material for generating other color of light also can be set in the first subregion and the second subregion Material, does not limit to above-mentioned yellow fluorescent powder and blue colour fluorescent powder.Wavelength conversion material is also also possible to be quantum dot, fluorescent dye Deng the material with wavelength conversion capability, however it is not limited to fluorescent powder.

Embodiment nine

Figure 14 is please referred to, Figure 14 is the schematic diagram of the illuminating source of another embodiment of light-source system of the invention.With Unlike above embodiments, light emitting device 1 generates sequential light by colour wheel in above embodiments, and shines in the present embodiment The different colours light that device 1 successively reflects LED lamp panel sending by the reflecting mirror of rotation is emitted to generate sequential light, compared to real Example one is applied, uses reflecting mirror to can control cost in the present embodiment.

Specifically, light emitting device 1 includes illuminating source group 1401, the first reflection unit 1405, the second reflection unit 1403 and the second driving device (not shown).

Illuminating source group 1401 includes that the first luminescent device (is in the present embodiment yellow fluorescent powder LED 1401a) and the Two luminescent devices (are in the present embodiment blue-ray LED 1401b), wherein fluorescent powder LED, which refers to, is coated in LED chip for fluorescent powder Surface, using LED issue light come excitated fluorescent powder and issue fluorescence.Common yellow fluorescent powder LED refers to yellow fluorescence Powder is coated on blue-light LED chip surface, and the blue light launched by blue-ray LED excites generation sodium yellow.Yellow light LED 1401a It is annularly distributed with blue-ray LED 1401b, and yellow light LED 1401a and the direction of blue-ray LED 1401b emergent light are parallel In the central axis for crossing the cricoid center of circle.

Second reflection unit is in the present embodiment a rotation mirror 1403 comprising reflecting surface is set to illuminating source group The side of 1401 emergent light, and between the first luminescent device 1401a and the second luminescent device 1401b.

First reflection unit 1405 includes two reflecting elements, is in the present embodiment reflecting mirror, is located at first On the emitting light path of luminescent device 1401a and the second luminescent device 1401b, for the emergent light of different luminescent devices to be reflexed to Second reflection unit 1403.

Second driving device drives the movement of the second reflection unit 1403, so that reflecting surface is sequentially placed into the first reflection unit On the emitting light path of 1405 two reflecting elements, the light that the first, second luminescent device issues successively is reflected into outgoing.

In practice, illuminating source group 1401 also may include multiple light-emitting element arrays, in the present embodiment for LED array.Correspondingly, the first reflection unit 1405 includes multiple reflecting mirrors, is respectively placed in multiple photophores in light source 1401 On the emitting light path of part array.

As shown in figure 15, Figure 15 is the structural schematic diagram of the illuminating source group 1401 in the present embodiment.Illuminating source group Each LED in 1401 is arranged in rotate mirror 1403 as on the disk in the center of circle, and circumferentially arranges around rotation mirror 1403, and with It is radially in array distribution centered on rotation mirror 1403.In array distribution radially, same color is issued in LED array The LED of light, circumferentially in arrangement, yellow fluorescent powder LED 1401a and blue-ray LED 14101b are alternately distributed.

Embodiment ten

Figure 16 is please referred to, Figure 16 is the schematic diagram of the another embodiment of light-source system of the invention.Light-source system 1600 wraps Include light emitting device 1, beam splitting system 2, the first spatial light modulator 1611 and second space optical modulator 1613.

Light emitting device 1 includes the first luminescent device, the second luminescent device and first control device (not shown), wherein first Luminescent device is for generating the first light, and the second luminescent device is for generating the second light；First control device is used at least partly Period alternately lights the first luminescent device and the second luminescent device, to be emitted the first light and the second light of timing.

Specifically, the first luminescent device is yellow light LED 11a, and the second luminescent device is blue-ray LED 11b, is respectively used to Generate yellow light and blue light.The open and close of luminescent device of the first control device for controlling different colours respectively, make blue light LED11b and yellow light LED 11a is alternately lighted, to generate the yellow light and blue light of timing.

In the present embodiment, yellow light LED 11a and blue-ray LED 11b be can control simultaneously in a certain period first control device It lights.Since obtained green light is modulated in DMD 1611 after blue light and yellow light light splitting, then in yellow light LED 11a and In this period that blue-ray LED 11b is lighted simultaneously, DMD1611 is for adjusting light combination, that is, cyan light of blue light and green light System, then do not influence DMD 1613.In this period, due to the mixing of two kinds of light, DMD 1611 is adjusted Mostly a kind of color is made, the colour gamut which is modulated is bigger.

As shown in Figure 17 A, Figure 17 A is the color timing diagram of 1600 emergent light of light-source system.In a cycle T, in t1 In time, blue-ray LED is lighted, then light emitting device 1 is emitted blue light；Within the t2 time, yellow light LED is lighted, then light emitting device 1 is emitted Yellow light；Within the t3 time, while blue-ray LED and yellow light LED are lighted, then light emitting device 1 is emitted the light combination of two kinds of light, i.e., white Light.As shown in Figure 17 B and Figure 17 C, Figure 17 B and Figure 17 C are respectively the modulation time of DMD1611 and DMD1613 to different color light Figure.Correspondingly, for modulating blue light, DMD1613's DMD 1611 does not work in the t1 time；DMD1611 is for adjusting in the t2 time Green light processed, DMD1613 is for modulating feux rouges；In the t3 time, DMD1611 is for modulating green light, and DMD1613 is for modulating feux rouges.

It can however not make two kinds of color of light always while lighting, since only there are two DMD in this light-source system, wherein One DMD is used to modulate blue light and green light respectively in the different periods.If yellow light LED 11a and blue-ray LED 11b are always maintained at It lights simultaneously, then leads to both the monochromatic light images of no blue light and green light, and the image of only cyan light.

It is easily understood that if the optical filter 1609 in beam splitting system 2 is for transmiting feux rouges and reflecting green light, blue light It is modulated in DMD 1611 with the feux rouges obtained after yellow light light splitting, green light is modulated in DMD 1613.Then in Huang In this period that light LED11a and blue-ray LED 11b is lighted simultaneously, the DMD 1611 for being to the light combination of blue light and feux rouges Purple light is modulated, and DMD 1613 is not influenced then.

Compared to above embodiments, the present embodiment can light the luminescent device of different colours simultaneously, so that the face for modulation Coloured light is more, and then the colour gamut that can be modulated is bigger.

Embodiment 11

Figure 18 is please referred to, Figure 18 is the schematic diagram of the another embodiment of light-source system of the invention.In the present embodiment, light source System 1800 includes light emitting device 1, beam splitting system 2, the first spatial light modulator 1811 and second space optical modulator 1813.

Include: in place of the difference of the present embodiment and embodiment illustrated in fig. 16

Beam splitting system 2 includes filtering apparatus 1805, the second driving device 1806 for driving filtering apparatus to move and the One control device (not shown).It include the first section, the second section and third section on filtering apparatus 1805, wherein the first section The first range of wavelength light to the first optical channel for transmiting the first light is emitted, and it is logical to reflect the second range of wavelength light to the second light Road outgoing；The first range of wavelength light to the second optical channel that second section is used to reflect the first light is emitted, and transmits the second range Wavelength light to the first optical channel is emitted；Third section is emitted for the second light of transmissive portion to the first optical channel, and reflective portion Second light to the second optical channel is emitted.First control device is for controlling the second driving device 1806, so that the first section is extremely Small part and the second section are at least partly sequentially located on the emitting light path of the first light, and third section is at least partially disposed at On the emitting light path of two light.

For concrete example, as shown in figure 19, Figure 19 is the main view of the filtering apparatus in light-source system shown in Figure 18 One embodiment.Filtering apparatus 1805 is in the form of annular discs, and each section thereon is circumferentially distributed on the disk.Optical filtering dress The first section 1805A on 1805 is set for transmissive portion blue light and reflective portion blue light, the second section 1805B is green for transmiting Light simultaneously reflects feux rouges, and third section 1805C is for reflecting green light and transmiting feux rouges.Second driving device 1806 is motor, is used for 1805 periodic rotary of filtering apparatus is driven, so that each section is sequentially located on the emitting light path of light emitting device 1.

As shown in figure 20, Figure 20 is the light-source system and two DMD of two light sources of light-source system shown in Figure 18 Modulation timing figure.In a modulation period T, within the preceding t1 time, the first section 1805A of filtering apparatus 1805 is located at timing On the emitting light path of light, then blue light source 1801 is lighted, and yellow light sources 1802 do not work, then two DMD are for modulating blue light.? In the next t2 time, the second section 1805B of filtering apparatus 1805 is located on the emitting light path of sequential light, yellow light sources 1802 light, and blue light source 1801 does not work, then DMD1811 is for modulating green light, and DMD1813 is for modulating feux rouges.In the case where connecing In the t3 time come, the third section 1805C of filtering apparatus 1805 is located on the emitting light path of sequential light, and 1802 points of yellow light sources Bright, blue light source 1801 does not work, then DMD1811 is for modulating feux rouges, and DMD1813 is for modulating green light.In this way, can make The three primary colours light of two DMD difference modulation timings.

Embodiment 12

Figure 21 is please referred to, Figure 21 is another implementation of the main view of the filtering apparatus in light-source system shown in Figure 18 Example.

It in the present embodiment, further include the 4th section on filtering apparatus 1805, for reflecting blue light and transmiting yellow light, and Unlike light-source system shown in Figure 18, the first section 1805A is for transmiting blue light and reflecting yellow light；When the first section When 1805A and the 4th section 1805D are located on the emitting light path of sequential light, blue light source 1801 and the same time point of yellow light sources 1802 It is bright.Correspondingly, in a modulation period T, when the first section of filtering apparatus 1805, the second section, third section and When four sections are sequentially located at the emitting light path of sequential light, DMD 1811 is sequentially modulated blue and green light, feux rouges and yellow light, DMD 1813 are sequentially modulated yellow light, feux rouges, green light and blue light.In the present embodiment, since the color of modulation adds yellow light, so that light The brightness of source system improves.

In the light-source system shown in Figure 18, corresponded on filtering apparatus using a blue light source and a yellow light sources Different splitting area timing, which are lighted, comes respectively two DMD at least three sequential lights of offer, the light quilt that wherein blue light source generates Two beam blue lights are divided into two DMD.In practice, two beam blue lights point can also will be provided using two blue light sources It Yong Yu not two DMD modulation.It is described as follows.

Embodiment 13

Figure 22 is please referred to, Figure 22 is the schematic diagram of the another embodiment of light-source system of the invention.In the present embodiment, light source System 2200 includes light emitting device, beam splitting system, the first spatial light modulator 2211 and second space optical modulator 2213.It shines Device includes the first luminescent device 2201A, the second luminescent device 2202, third luminescent device 2201B and first control device (figure Do not show).Beam splitting system includes filtering apparatus 2205, the second driving device 2206, optical filter 2203 and 2204.

Include: in place of the difference of the present embodiment and embodiment illustrated in fig. 18

Light emitting device further includes third luminescent device, for generating the 4th light in at least partly period for being emitted the second light. In the present embodiment, which is blue light source 2201B.Filtering apparatus 2205 in beam splitting system includes the area Liang Ge Section, i.e. the second section and third section on filtering apparatus 1805 in light-source system shown in Figure 18.As shown in figure 23, Figure 23 It is the main view of filtering apparatus 2205 in light-source system shown in Figure 22.On filtering apparatus 2205 (i.e. including the first section 2205A The second section on filtering apparatus 1805), for transmiting green light and reflecting feux rouges；It further include that (filter the second section 2205B dress Set the third section on 1805), for transmiting feux rouges and reflecting green light.

The yellow light (i.e. the first light) that yellow light sources 2202 issue is incident at a certain angle on filtering apparatus 2205, through filtering The light beam that device 2205 reflects is emitted to DMD 2211 along the first optical channel after the transmission of optical filter 2204；Through filtering apparatus 2205 The light beam of transmission is emitted to DMD2213 along the second optical channel after the transmission of optical filter 2203.The light beam that blue light source 2201A is issued (i.e. the second light) is after the reflection of optical filter 2204 to DMD 2211 after the outgoing of the first optical channel.What blue light source 2201B was issued Light beam (i.e. the 4th light) is emitted to DMD 2213 along the second optical channel after the reflection of optical filter 2203.

In a modulation period T, within the preceding t1 time, first control device closes yellow light sources 2202, and same time point Brilliant blue radiant 2201A and 2201B, DMD2211 and 2213 are used to modulation blue light.Within the rear t2 time, first control device It lights yellow light sources 2202 and closes blue light source 2201A and 2201B, the first section 2205A and the second section 2205B are at least When partial sector is sequentially located on the emitting light path of yellow light.DMD 2211 is for modulating the feux rouges being successively emitted along the first optical channel And green light, DMD 2213 is for modulating the green light and feux rouges being successively emitted along the second optical channel.

In the present embodiment, it can be controlled separately the luminous intensity for the blue light modulated in two DMD, to better adapt to reality It needs.Also, the time span of two blue lights outgoing can also be inconsistent, and one of blue light source can be in another blue light It is lighted in the partial time period of light source igniting, the length of time specifically lighted can need the amount of blue light according to corresponding DMD To determine.As a same reason, it is the amount for adjusting green light and feux rouges for modulation, can correspondingly controls the first section 2205A The lighting time of yellow light when on the emitting light path of yellow light (i.e. the first light) is located at the second section 2205B.It is readily comprehensible That one of blue light source can also be substituted for the light-emitting component of other colors, such as cyan light emitting elements, correspondingly its In DMD be used for green light, feux rouges and the green light of modulation timing.

It is understood that the optical filter 2203 and 2204 in the present embodiment in beam splitting system is not required, Ke Yitong The light channel structure of change light-source system is crossed to dispense two optical filters.Such as it is each section on filtering apparatus 2205 is same When be also configured to transmission the second light and the 4th light (being blue light in the present embodiment), and light source 2201A and 2201B are located at The two sides of filtering apparatus 2205, so that the light of light source 2201A outgoing is directly transmitted to DMD after the transmission of filtering apparatus 2205 The light of 2211, light source 2201B outgoing is directly transmitted to DMD 2213 after the transmission of filtering apparatus 2205.

Embodiment 14

Figure 24 is please referred to, Figure 24 is the schematic diagram of the illuminating source of another embodiment of light-source system of the invention.This In embodiment, light-source system 2400 includes light emitting device, beam splitting system, the first spatial light modulator 2411 and second space light tune Device 2413 processed.

Light emitting device is for being sequentially emitted the first light, the second light and third light.For concrete example, light emitting device includes Huang Radiant 2402A, blue light source 2401 and yellow light sources 2402B are respectively used to generate yellow light 22A, blue light 11 and yellow light 22B, That is the first light, the second light and third light；It further include first control device 2403, for controlling three light sources, so that the dress that shines It sets and is sequentially emitted yellow light 22A, blue light 11 and yellow light 22B.

Beam splitting system for selfluminous device in future the second light be divided into along the first optical channel and the second optical channel outgoing First sub-light and the second sub-light, the third light for being also used to selfluminous device in future is divided into be gone out along the first optical channel and the second optical channel The 5th range of wavelength light penetrated and the 6th range of wavelength light.For concrete example, beam splitting system includes optical filter 2404 and 2405. The optical filtering curve of optical filter 2405 is set as the green color components of transmission yellow light, i.e. the second range of wavelength light and third light of the first light The 5th range of wavelength light, and reflect red color light component, i.e. the first range of wavelength light of the first light and the 6th range wave of third light Long light；The blue light of also reflective portion blue light and transmissive portion blue light, the transmissive portion corresponds to the second sub-light, the reflective portion Blue light corresponds to the first sub-light.Optical filter 2404 is for transmiting blue light and reflecting yellow light.Blue light source 2401 and yellow light 2402A are produced Raw light is incident from the two sides of optical filter 2404 respectively, respectively from same optical channel to filter after optical filter 2404 is transmitted and reflected The same side of mating plate 2405 is incident.The light that yellow light sources 2402B is generated is incident from the other side of optical filter 2405.Through optical filter The light of 2405 transmissions is emitted to DMD 2411 along the first optical channel, and the light reflected through optical filter 2405 is emitted to along the second optical channel DMD 2413。

First spatial light modulator (i.e. DMD 2411) be used for beam splitting system is sequentially emitted along the first optical channel first Range of wavelength light, the first sub-light and the 5th range of wavelength light are modulated.Second space optical modulator (i.e. DMD 2413) is used for The second range of wavelength light, the second sub-light and the 6th range of wavelength light that the beam splitting system is sequentially emitted along the second optical channel into Row modulation.

As shown in figure 25, Figure 25 is the light-source system and two DMD of three light sources of light-source system shown in Figure 24 Modulation timing figure.In a modulation period T, within the preceding t1 time, blue light source 2401 is lighted, two yellow light sources not work Make, then two DMD are used to modulation blue light.Within the next t2 time, yellow light sources 2402B is lighted, other two light source It does not work, then DMD2411 is for modulating green light, and DMD2413 is for modulating feux rouges.Within the next t3 time, yellow light sources 2402A is lighted, and other two light source does not work, then DMD2411 is for modulating feux rouges, and DMD2413 is for modulating green light.In this way, Can so that two DMD difference modulation timing three primary colours light.

In the present embodiment, time period t 4 can also be added in a modulation period T, within the time, three light sources are same When light, then two DMD are used to modulate the light combination of blue light and yellow light, i.e. white light.In this way, the brightness of light-source system can be improved. In the present embodiment, the ratio of t1, t2, t3 and t4 can be needed according to the actual ratio to different colours to be adjusted.

It, can be by controlling the brightness of two yellow light sources respectively come respectively to two in the present embodiment compared to above embodiments The brightness of feux rouges and green light that DMD is received is adjusted, and is reduced to the second driving device of filtering apparatus driving It uses；Simultaneously as the rotation being not required to filtering apparatus of lighting of light source is synchronised, lighted in the timing for controlling different light sources It is more easier, it is also more convenient to the amount of different colours light modulation in adjustment DMD.

It is easily understood that one of yellow light sources in the present embodiment can also be substituted for the luminous member of third color Part.Corresponding, the optical filtering curve of the optical filter 2405 for light splitting is also configured to a wave of transmission third color of light simultaneously The light of long range and another wave-length coverage light for reflecting third color of light.

In the present embodiment, three beams timing can also be generated by the colour wheel that excitation rotates in light emitting device Light, and the three beams sequential light can also be divided in beam splitting system come real by the filter wheel rotated simultaneously with colour wheel It is existing.Above embodiments are described these devices, only need simply in different embodiments light emitting device and light splitting System is combined, and details are not described herein.

Embodiment 15

Figure 26 is please referred to, Figure 26 is the schematic diagram of the illuminating source of another embodiment of light-source system of the invention.This In embodiment, light-source system 2600 includes light emitting device, beam splitting system, the first spatial light modulator 2611 and second space light tune Device 2613 processed.Light emitting device includes blue light source 2601A and 2601B, yellow light sources 2602A and 2602B, first control device 2603.Beam splitting system includes optical filter 2604 and 2605.

Include: in place of the difference of the present embodiment and embodiment illustrated in fig. 24

Light emitting device in the present embodiment further includes blue light source 2601B and blue light source 2601A is respectively two DMD Blue light is provided.

Compared to the optical filter in light-source system shown in Figure 24 for being divided to the light beam that two yellow light sources generate 2605, the optical filter 2605 in the present embodiment for being divided to the light beam that two yellow light sources generate is set as transmiting green light With blue light and reflect feux rouges, and the blue light that blue light 2601A is generated is emitted to DMD along the second optical channel after the transmission of optical filter 2605 2613.Meanwhile optical filter 2606 is located on the emitting light path of 2605 the reflected beams of optical filter, for transmiting blue light and reflecting other Light.The feux rouges and green light of the timing reflected through optical filter 2605 are emitted to DMD along the first optical channel after the reflection of optical filter 2606 2611, blue light source 2601B are emitted to DMD 2611 along the first optical channel after the transmission of optical filter 2606.

As shown in figure 27, Figure 27 is the light-source system and two DMD of four light sources of light-source system shown in Figure 26 Modulation timing figure.In a modulation period T, within the preceding t1 time, first control device controls two blue light sources and lights, and two A yellow light sources do not work, then two DMD are for modulating blue light.Within the next t2 time, yellow light sources 2602B is lighted, Its excess-three light source does not work, then DMD2611 is for modulating green light, and DMD2613 is for modulating feux rouges.In the next t3 time Interior, yellow light sources 2602A is lighted, and excess-three light source does not work, then DMD2611 is for modulating feux rouges, and DMD2613 is for modulating Green light.In this way, can so that two DMD difference modulation timing three primary colours light.

It is easily understood that one of blue light source can also be lighted only i.e. in the partial time period of time period t 1 Can, wherein the length of time specifically lighted can the amount of blue light according to actual needs controlled.

Preferably, in a modulation period T, time period t 4 can also be added, within the time, four same time points of light source Bright, then two DMD are used to the light combination of modulation blue light and yellow light, i.e. white light.In this way, the brightness of light source can be improved.In this reality It applies in example, the ratio of t1, t2, t3 and t4 can be needed according to the actual ratio to different colours to be adjusted.

Compared to light-source system shown in Figure 24, two blue light sources are used in the present embodiment, can be controlled separately two DMD The luminous intensity and the length of modulation time of the blue light of middle modulation, to better adapt to be actually needed.

In the embodiment above, the optical filtering curve of each optical filter, the timing control of each light source, DMD modulation timing It is not limited to above citing with specific light channel structure etc., those skilled in the art can specifically design according to the present invention.

Embodiment 16

Figure 28 is please referred to, Figure 28 is the schematic diagram of the illuminating source of another embodiment of light-source system of the invention.This In embodiment, light-source system includes light emitting device, beam splitting system, the first spatial light modulator 2811 and second space optical modulator 2813.Light emitting device includes excitation light source 2801 and 2802, wavelength conversion layer 2805, first driving device 2806 and the first control Device (not shown).Beam splitting system includes optical filter 2814 and reflecting mirror 2812.

Light emitting device by timing lights four light sources to generate sequential light in light-source system shown in Figure 24, and this implementation Light emitting device in example generates sequential light using colour wheel combination timing point bright light source two ways, is described as follows.

It include the first subregion 2805A, the second subregion 2805B, third subregion 2805C and the 4th point on wavelength conversion layer 2805 Area 2805D is respectively arranged with the first, second, third and fourth functional material, be respectively used to absorb exciting light and generate first, Second, third, the 4th light.In the present embodiment, two excitation light sources are UV light, first and third subregion on be provided with Huang Optical wavelength conversion material, second and the 4th is provided with blue light wavelength transition material on subregion.First point within the same period Area and third subregion are located on the emitting light path of the exciting light of two excitation light sources generation, the second subregion in another period It is located at the 4th subregion on the emitting light path of the exciting light of two excitation light sources generation.

First driving device 2806 is for driving wavelength conversion layer 2805, so that exciting light shape on wavelength conversion layer 2805 At hot spot act on the wavelength conversion layer 2805 by predefined paths.Meanwhile first control device is for controlling two exciting lights Source, so that at least partly period when the first subregion 2805A and third subregion 2805C is located in the optical path of two beam exciting lights hands over For lighting, when the second subregion 2805B and the 4th subregion 2805D is located in the optical path of two beam exciting lights, at least partly the period is simultaneously It lights.

For example bright in detail below.As shown in figure 29, Figure 29 is the wavelength conversion layer in light-source system shown in Figure 28 Main view one embodiment.In the present embodiment, wavelength conversion layer 2805 is in the form of annular discs, and the first subregion 2805A and Three subregion 2805C are arranged in 180 degree, and the second subregion 2805B and the 4th subregion 2805D are arranged in 180 degree.First driving device 280 be motor, for driving wavelength conversion layer periodic rotary.Two beam exciting lights each self-forming on wavelength conversion layer 2805 The line of hot spot passes through the center of circle of disk, so that being located at this two excitations in the subregion of 180 degree setting within the same time On the emitting light path for the exciting light that light source generates.

In the present embodiment, wavelength conversion layer 2805 is set as reflective, i.e. the optical path of exciting light and stimulated light is located at The same side of the wavelength conversion layer 2805.Can by wavelength conversion layer 2805 backwards to excitation light source side place reflecting mirror or Person is coated with reflectance coating to realize, this is well-known technique, and details are not described herein.

Setting is respectively used to collect and swash there are two reflector 2803 and 2804 on the emitting light path of wavelength conversion layer 2805 Stimulated light caused by 2802 excitation wavelength conversion layer of light emitting source 2801 and excitation light source, is referred to as the first stimulated light and second Stimulated light.It is each provided with a through-hole on two reflectors, the exciting light generated for transmiting corresponding excitation light source. Two reflectors are distinguished the optical path of exciting light and stimulated light using the difference of exciting light and the etendue of stimulated light Come.It is easily understood that the i.e. optical path of exciting light and the optical path of stimulated light is located at wavelength when wavelength conversion layer is transmission-type The two sides of conversion layer, it may not be necessary to use reflector.But reflective wavelength conversion layer and reflector are used in the present embodiment, The loss of light beam can be reduced, beam utilization is improved.

Beam splitting system is used to for the first light and third light being respectively classified into two along the first optical channel and the outgoing of the second optical channel Beam different wavelength range light, and the second light and the 4th light are emitted along the first optical channel and the second optical channel respectively.In the present embodiment In, reflecting mirror 2812 is located on the emitting light path of the second stimulated light, the first stimulated light and through reflecting mirror 2812 reflect second by Laser is incident to the two sides of optical filter 2814 respectively.Optical filter 2814 is green in yellow light (i.e. the first light and third light) for reflecting Light ingredient simultaneously transmits red color light component, is also used to reflect blue light (i.e. the second light and the 4th light) along the first optical channel and the second optical channel Outgoing.DMD 2811 to through optical filter 2814 along the light beam that the first optical channel is emitted for being modulated.DMD 2813 for pair It is modulated through optical filter 2814 along the light beam that the second optical channel is emitted.

Preferably, the first stimulated light sequentially enters 2807 dodging and collecting lens of dodging device after the collection of reflector 2803 Optical filter 2814 is emitted to after 2810 again.Likewise, the second stimulated light sequentially enters dodging device after the collection of reflector 2804 It is emitted to optical filter 2814 again after 2808 dodging and collecting lens 2809.In this way, the first stimulated light and the second stimulated light can be improved Utilization rate, reduce light loss.

As shown in figure 30, Figure 30 is a kind of working timing figure of light-source system shown in Figure 28.It is described as follows.In wave In a cycle T that long conversion layer 2805 rotates, when the second subregion 2805B and the 4th subregion 2805D is located at the excitation of two beams When in the optical path of light, first control device controls two excitation light sources and lights, then it is anti-to receive optical filter 2814 simultaneously by two DMD The blue light penetrated；When the first subregion 2805A and third subregion 2805C are located in the optical path of two beam exciting lights, in preceding t1 In, first control device control excitation light source 2802 is lighted, and excitation light source 2801 is closed, then DMD2813 receives green light, DMD 2811 receives feux rouges；Within the rear t2 time, first control device control excitation light source 2801 is lighted, excitation light source 2802 It closes, then DMD2813 receives feux rouges, and DMD2811 receives green light.

Preferably, when the first subregion 2805A and the second subregion 2805C are located in the optical path of two beam exciting lights, the phase Between have in partial time period t3, first control device control excitation light source 2801 and 2802 light simultaneously, then two DMD connect simultaneously Receive the light combination of feux rouges and green light, i.e. yellow light.This improves the brightness of light-source system.

In the present embodiment, when the second subregion 2805B and the 4th subregion 2805D are located in the optical path of two beam exciting lights When, the length of the working time of adjustable two beams exciting light, to adjust the amount for the blue light that two DMD are respectively received, in turn Adjust the color of the image of final light source system exit.It as a same reason, can also be in the first subregion 2805A and third subregion When 2805C is located in the optical path of two beam exciting lights, the length of the working time of two beam exciting lights is adjusted separately, to adjust two The timing that a DMD is respectively received is red, green light amount.

In the present embodiment, two excitation light sources are also possible to blue light source, the second subregion 2805B and the 4th subregion Reflective areas is provided on 2805D, for reflecting blue light.When excitation light source is laser light source, it is preferable that the second subregion 2805B and the 4th subregion 2805D are additionally provided with scattering material, for carrying out eliminating coherence to blue light.

In the present embodiment, the first, second, third and fourth light is also possible to different colours light, can be according to two DMD points The light for not needing to modulate determine the four bundles light spectrum and for by the first light and third light light splitting optical filter optical filtering Curve.

Embodiment 17

Figure 31 is please referred to, Figure 31 is the schematic diagram of the illuminating source of another embodiment of light-source system of the invention.This In embodiment, light-source system includes light emitting device, beam splitting system, the first spatial light modulator 3111 and second space optical modulator 3113.Light emitting device includes excitation light source 3101 and 3102, wavelength conversion layer 3105, first driving device 3106 and the first control Device (not shown).Beam splitting system includes optical filter 3109, the reflecting mirror 3103 and 3104 with through-hole.

Include: in place of the difference of the present embodiment and embodiment illustrated in fig. 28

Reflector is placed on the emitting light path of wavelength conversion layer 2805 in light-source system shown in Figure 28, so that the dress that shines The sequential light for setting sending enters back into beam splitting system after reflector is collected.In the present embodiment, not in wavelength conversion layer 3105 Reflector is placed on emitting light path, but directly places beam splitting system.

Optical filter 3109 in beam splitting system is used to transmit the green color components in yellow light and reflects the red color light component in yellow light, It is also used to transmit the second light and the 4th light (being in the present embodiment blue light) respectively.The excitation that first excitation light source 3101 generates Light is successively incident to wavelength conversion layer 3105 after through-hole and collimation lens 3108 on reflecting mirror 3103.Wavelength conversion layer Optical filter 3109 is reflexed to by reflecting mirror 3103 after the collimated collimation of lens 3108 of first stimulated light of 3105 outgoing.Second excitation The exciting light that light source 3102 generates is successively incident after through-hole, optical filter 3109 and collimation lens 3107 on reflecting mirror 3104 To wavelength conversion layer 3105.The collimated lens 3107 of the second stimulated light that wavelength conversion layer 3105 is emitted enter optical filter after collimating 3109。

The working sequence concrete example of light-source system shown in Figure 31 is as follows.In the week that wavelength conversion layer 3105 rotates In phase T, when the second subregion 2805B and the 4th subregion 2805D is located in the optical path of two beam exciting lights, first control device It controls two excitation light sources to light, then DMD 3113 receives the blue light of the transmission of optical filter 3109, and DMD 3111 is received successively The blue light reflected through the transmission of optical filter 3109 and reflecting mirror 3104；When the first subregion 2805A and third subregion 2805C are located at When in the optical path of two beam exciting lights, within the preceding t1 time, first control device control excitation light source 3101 is lighted, excitation light source 3102 close, then DMD3113 receives feux rouges, and DMD3111 receives green light；Within the rear t2 time, first control device control Excitation light source 3102 is lighted, and excitation light source 3101 is closed, then DMD3113 receives green light, and DMD3111 receives feux rouges.

For convenience of description, it is all made of the first light in the above various embodiments and third light is yellow light, the second light and the 4th light It is example explanation for blue light.In practice, which may be other color of light, be not limited to described above 's.Corresponding, the optical filtering curve of optical filter or filtering apparatus in beam splitting system is also according to the specific color of the four bundles light And it specifically designs.

In the above various embodiments, have in the wavelength conversion layer of different subregions and the filtering apparatus of different sections, wavelength Different zones on conversion layer or filtering apparatus may not be around a center of circle circumferentially distributed, but be set in parallel Belt-like zone takes other to be appropriately arranged with mode.It is corresponding, for driving the wavelength conversion layer or filtering apparatus to transport function Driving device can be linear translation device or other taken to be appropriately arranged with mode so that light beam in the wavelength conversion layer or The hot spot formed on person's filtering apparatus acts on the wavelength conversion layer or filter along straight line path or other predefined paths respectively Electro-optical device.

In the above various embodiments, the light of two DMD outgoing can be projected in same display area, to form a width figure Picture, as shown in figure 32, Figure 32 are the structural schematic diagrams of one embodiment of light-source system of the invention.The light of two DMD outgoing Two display areas can also be projected respectively, to form two images, as shown in figure 33.Figure 33 is light-source system of the invention Another embodiment structural schematic diagram.

Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other The difference of embodiment, the same or similar parts in each embodiment may refer to each other.

The embodiment of the present invention also provides a kind of optical projection system, including light-source system, which can have above-mentioned each Structure and function in embodiment.The optical projection system can use various shadow casting techniques, such as liquid crystal display (LCD, Liquid Crystal Display) shadow casting technique, digital light processor (DLP, Digital Light Processor) shadow casting technique. In addition, above-mentioned light emitting device also can be applied to lighting system, such as stage lighting illumination.

Mode the above is only the implementation of the present invention is not intended to limit the scope of the invention, all to utilize this Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, it is relevant to be applied directly or indirectly in other Technical field is included within the scope of the present invention.

Claims

1. a kind of light-source system characterized by comprising

Beam splitting system, including the first optical filter and the first reflecting mirror, first optical filter is for the first light described in received in sequence With second light；First optical filter by first light be divided into along the first optical channel outgoing the first range of wavelength light with And it is reflected into the second range of wavelength light on first reflecting mirror, first reflecting mirror is by the second range of wavelength light edge The outgoing of second optical channel；First optical filter is also used to go out at least partly light of second light along first optical channel It penetrates.

2. light-source system according to claim 1, which is characterized in that the beam splitting system further includes the second optical filter and Three optical filters；

Second optical filter is placed in the light being emitted from first optical filter on first optical channel and being located at the second light On the road；The third optical filter is placed on second optical channel and is located on the emitting light path of first reflecting mirror；

Second light is divided into continuation and is emitted along first optical channel by second optical filter for receiving second light Third range of wavelength light and the 4th range of wavelength light that is reflected on the third optical filter, and by the first range wave Long light continues to be emitted along first optical channel；

The third optical filter is for the 4th range of wavelength light to be emitted along second optical channel, and by described second Range of wavelength light continues to be emitted along second optical channel.

3. light-source system according to claim 1 or 2, which is characterized in that the light-source system further include:

Second space optical modulator, for being modulated to the beam splitting system along the light that the second optical channel is emitted.

4. light-source system according to claim 3, which is characterized in that the light-source system further include: the second reflecting mirror and 4th optical filter；

Second reflecting mirror is placed on the emitting light path of first spatial light modulator, and being used for will be through first spatial light Light after modulators modulate reflexes to the 4th optical filter；

4th optical filter is placed on the emitting light path of the second space optical modulator, is used for the second space light tune The light of device outgoing processed and the light convergence of second reflecting mirror reflection are that light beam is emitted.

5. light-source system according to claim 1, which is characterized in that the light emitting device includes:

Light source, for generating exciting light；

Wavelength converter, including the first subregion and the second subregion；

First driving device, for driving the Wavelength converter, so that first subregion and the second subregion period Property be located at the exciting light optical path on；

Wherein:

The light source is provided with yellow fluorescent powder on first subregion, for absorbing the UV light and producing for generating UV light Yellow stimulated light is given birth to, blue colour fluorescent powder is provided on second subregion, for absorbing the UV light and generating blue stimulated light；

Alternatively, the light source is provided with yellow fluorescent powder on first subregion, for absorbing for generating blue excitation light It states blue excitation light and generates yellow stimulated light, second subregion is set as transparent area, for transmiting the blue excitation light.

6. light-source system according to claim 1, which is characterized in that the light emitting device includes:

First luminescent device, for generating the first light；

Second luminescent device, for generating the second light；

First control device, for first luminescent device and second luminescent device to be replaced point in at least partly period It is bright, to be emitted the first light and the second light of timing；

Wherein, first luminescent device is yellow light LED or laser, generates yellow light, and second luminescent device is blue-ray LED Or laser, generate blue light.

7. light-source system according to claim 1, which is characterized in that the first range of wavelength light is green light, described the Two range of wavelength light are feux rouges.

8. light-source system according to claim 2, which is characterized in that first light be yellow stimulated light, described second Light is blue light, and the first range of wavelength light is the second green light, and the second range of wavelength light is the second blue light, the third model Enclosing wavelength light is the first green light, and the 4th range of wavelength light is feux rouges.

9. light-source system according to claim 2, which is characterized in that the first range wave described in first filter transmission Long light reflects the second range of wavelength light；

Third range of wavelength light described in second filter transmission and the first range of wavelength light reflect the 4th range Wavelength light；

The third optical filter reflects the 4th range of wavelength light, transmits the second range of wavelength light.

10. a kind of optical projection system, which is characterized in that including light-source system as in one of claimed in any of claims 1 to 9.