CN106842790A

CN106842790A - Light-source system and relevant projecting system

Info

Publication number: CN106842790A
Application number: CN201611109532.4A
Authority: CN
Inventors: 胡飞; 李屹
Original assignee: Shenzhen Yili Ruiguang Technology Development Co Ltd
Current assignee: Shenzhen Appotronics Corp Ltd; Shenzhen Appotronics Technology Co Ltd
Priority date: 2012-09-28
Filing date: 2012-09-28
Publication date: 2017-06-13
Anticipated expiration: 2032-09-28
Also published as: CN106842790B; CN103713455A; CN103713455B

Abstract

The embodiment of the invention discloses a kind of light-source system, including：Light-emitting device, for the light of sequentially outgoing first 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 respectively along the first optical channel and the second optical channel outgoing, is additionally operable at least part of light of the second light of selfluminous device in future along the first optical channel outgoing；First spatial light modulator, for being modulated along the light of the first optical channel outgoing to the beam splitting system；Second space optical modulator, for being modulated along at least part of light of the second optical channel outgoing to the beam splitting system.The present invention provides a kind of light-source system for having luminous efficiency and lower cost concurrently.

Description

Light-source system and relevant projecting system

The application is the Application No. 201210370655.9 that applicant submitted for 09 month on the 28th in 2012, denomination of invention It is the divisional application of " light-source system and relevant projecting system ".

Technical field

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

Background technology

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 that modulation is obtained is quick on screen alternately to be switched, and then The monochromatic light image blend of each sequential is formed into coloured image together using the persistence of vision effect of human eye.And prior art In, typically it is modulated using R (red, feux rouges), G (green, green glow), B (blue, blue light) three primary colours lights.The most frequently used The way for obtaining three primary colours sequential light is to use exciting light to excite the different segmentations on colour wheel successively with outgoing different colours successively Light.In the structure shown here, excitation source is using blue led (Light Emitting Diode, light emitting diode) or blue sharp Light.There are three subregions, a subregion is provided with transparent area, for transmiting blue light on colour wheel；Another two subregion is respectively arranged with Green light fluorescent powder and red light fluorescent powder, are respectively used to absorb exciting light and produce green Stimulated Light and red Stimulated Light.

But, in this phosphor source, red fluorescence powder for limiting light source working life and luminous efficiency one Individual bottleneck.The light conversion efficiency of red light fluorescent powder is not high, wherein the energy for losing all is converted to heat, causes the temperature of fluorescent material Rapid increase, can influence its luminous efficiency and service life again in turn, form vicious circle.

The content of the invention

The present invention solves the technical problem of a kind of light-source system for having luminous efficiency and lower cost concurrently of offer.

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

Light-emitting device, for the light of sequentially outgoing first and the second light；

Beam splitting system, the first light for selfluminous device in future is divided into going 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 additionally operable at least part of light edge of the second light of selfluminous device in future First optical channel outgoing；

First spatial light modulator, for being modulated along the light of the first optical channel outgoing to the beam splitting system；

Second space optical modulator, for being adjusted along at least part of light of the second optical channel outgoing to the beam splitting system 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 includes following beneficial effect：

The present invention is by the first smooth light splitting into the first range of wavelength light and the second range of wavelength light, and two range of wavelength At least part of light sequential outgoing of light and the second light, so, certain period outgoing two light beams, another period outgoing is a branch of Light beam, to allow to be modulated three light beams using two spaces optical modulator；And the present invention can be used to be had The Stimulated Light light splitting that the material for transformation of wave length of high light conversion efficiency is produced has the wavelength of relatively low light conversion efficiency into another two The color of light of transition material, to improve the efficiency of light source.

Brief description of the drawings

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

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

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

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 front view of one embodiment of colour wheel 703 in Fig. 7；

Fig. 9 is the front 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 the light-source structure that wavelength conversion layer is fixedly connected 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 are the timing diagrams of the outgoing blue light of wavelength conversion layer 1203 and gold-tinted；

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 representation of the illuminating source group in the 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 are the color timing diagram of the 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 front view of the filtering apparatus in the light-source system shown in Figure 18；

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

Figure 21 is another embodiment of the front view of the filtering apparatus in the 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 front view of the filtering apparatus in the 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 three light-source systems of light source and two modulation timing figures of DMD of the light-source system shown in Figure 24；

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

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

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 front view of the wavelength conversion layer in the light-source system shown in Figure 28；

Figure 30 is a kind of work schedule of the 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 representation of one embodiment of light-source system of the invention；

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

Specific embodiment

Invention thinking of the invention includes：By the first light of light-emitting device sequentially outgoing and the second light, by beam splitting system First light is divided into along two beam different wavelength range light of different propagateds, so, outgoing two is distinguished not in a certain period Co-wavelength scope light to two spaces optical modulator, at least part of light to the two spatial lights of another light of period outgoing second are adjusted One in device processed, it is modulated with making it possible to not share the same light three beams with two spaces optical modulator；At the same time it can also pass through by Yellow fluorescent powder with light conversion efficiency higher be stimulated generation the light splitting of yellow Stimulated Light into feux rouges and green glow, so as to keep away The red light fluorescent powder for exempting to use light conversion efficiency relatively low produces feux rouges, 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 is produced.As can be seen from Figure, fluorescence The spectrum of the gold-tinted that powder is produced is wider, covers the spectrum of green glow and the spectrum of feux rouges.Therefore, gold-tinted light splitting can be turned into green glow And feux rouges.For ease of description, the spectrum of below-mentioned gold-tinted covers red color light component and green color components, and gold-tinted can be through filter Electro-optical device light splitting is into the feux rouges and green glow along different propagateds.

The embodiment of the present invention is described in detail with implementation method below in conjunction with the accompanying drawings.

Embodiment one

Fig. 2 is referred to, 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 excitation source 201, wavelength conversion layer 203 and the first driving means for producing exciting light 205.Wavelength conversion layer 203 includes the first subregion and the second subregion, and first wave length transition material is provided with first subregion, uses In absorption exciting light and the light of outgoing first；Transparent area is provided with second subregion, for transmiting exciting light, the exciting light is the Two light.In the present embodiment, excitation source 201 is used to produce blue excitation light.Excitation source 201 is preferably LASER Light Source, Can be LED or other solid state light emitters.Yellow fluorescent powder is provided with the first subregion on wavelength conversion layer 203, for inhaling Receive exciting light and produce 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 disk is circumferentially distributed along this for the different subregions on wavelength conversion layer.

First driving means 205 are used to drive 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 sequentially outgoing of the second light.In the present embodiment, first driving means 205 are motor, for driving wavelength The periodic rotary of conversion layer 203.

The first light that beam splitting system 2 is used for selfluminous device in future 1 is divided into along the first optical channel and the second optical channel outgoing The first range of wavelength light and the second range of wavelength light；It is additionally operable at least part of light edge of the second light of selfluminous device in future 1 First optical channel outgoing.First spatial light modulator 211 is used to adjust beam splitting system 2 along the light of the first optical channel outgoing System.Second space optical modulator 213 is used to be modulated beam splitting system 2 along at least part of light of the second optical channel outgoing.Through First spatial light modulator 211 and the light of the modulation of second space optical modulator 213 carry out closing light and enter view field.

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

First spatial light modulator 211 is used to be modulated the blue light and green glow of sequential, second space optical modulator 213 For being modulated to feux rouges.Because the conversion efficiency of yellow fluorescent powder is higher, and blue light is directly produced by luminescent device, therefore Yellow fluorescent powder is excited with blue light and produce three primary colours so that the efficiency of light source is 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 of the outgoing of wavelength conversion layer 203 enters the prism from the side 207b of the first prism 207, and in side It is totally reflected on 207a, the second prism 209 is transmitted into simultaneously from the side 209c of the second prism 209 after being transmitted through side 207c Reach on the 209a of side.Side 209a be coated surface, filter coating is coated with thereon, the filter coating transmission feux rouges, and reflect blue light and Green glow.The blue light and green glow that sequential is produced are totally reflected on the 209c of side again after being reflected through coated surface 209a, and in side Transmitted on 209b and enter the first spatial light modulator 211 with from the first optical channel.Blue light and green glow after modulated is with another angle Degree incident side 209b is simultaneously transmitted, and be totally reflected on the 209c of side, from side after then being reflected through coated surface 209a 209c is transmitted and transmitted away from the first prism 207.And feux rouges enters second after being transmitted through coated surface 209a from the second optical channel Spatial light modulator 213.Feux rouges after modulated is transmitted from the second prism 209 and the first prism 207 successively, after being modulated Green glow is combined into light beam.

Spatial light modulator can be the other kinds of spatial light modulator such as DMD, or liquid crystal.Say for convenience It is bright, in the examples below using DMD as an example.

As shown in Figure 3A, Fig. 3 A are a kind of embodiments of the timing diagram of the emergent light of wavelength conversion layer 203.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 is rotated, the work of light-source system Make process as follows.In preceding 0.25T, the outgoing blue light of wavelength conversion layer 203, in rear 0.75T, the outgoing of wavelength conversion layer 203 is yellow Light.Accordingly, DMD 211 is used to modulate blue light in preceding 0.25T, and DMD 213 is not used for modulating light beam.DMD in 0.75T afterwards 211 are used to modulate green glow, and DMD 213 is used to modulate 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 different color light modulation time diagram a kind of embodiment.In this case, in each cycle T feux rouges and Green glow 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 of the white light that three primary colours light is mixed has deviation with predetermined chromaticity coordinates.In practice, can be by using this The chromaticity coordinates that two DMD control white light to the length of the modulation time of different colours light makes up to satisfaction.For example, in this reality Apply in example, cause the chromaticity coordinates of white light partially red if feux rouges is excessive, the modulation time of DMD 213 can be controlled to shorten, make It is invalid light to obtain the feux rouges in certain period of time.As shown in figure 4, Fig. 4 is DMD 213 modulates the another of time diagram to feux rouges Plant embodiment.In fig. 4, the hindfoot portion of feux rouges is rejected in each cycle T.In practice, it is also possible to by feux rouges Leading portion give up, or centre one end or several sections give up, what this all will be appreciated that.

In addition, the first subregion and the ratio shared by the second subregion are citing above, its actual ratio is not limiting as.In reality During border uses, the proportion of the first subregion and the second subregion can be according to actual needs determined.

In the present embodiment, the first light of light-emitting device sequentially outgoing and the second light, and divided the first light by beam splitting system Into the two beam different wavelength range light along different propagateds, so, two different wavelength ranges of outgoing are distinguished in a certain period Light is to two spaces optical modulator, at least part of light to the two spatial light modulators of another light of period outgoing second one It is individual, it is modulated with making it possible to not share the same light three beams with two spaces optical modulator.

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

Light path of the above Stimulated Light in two pieces of TIR prisms only row illustrated example for convenience of description, is not intended to limit TIR Other usages of prism.

In the above embodiments, to realize simultaneously the light splitting of green color components and red color light component in gold-tinted using two pieces of prisms And through the closing light of the light beam after two spaces light modulator modulates.In practice, it is also possible to come using light splitting optical filter Carry out light splitting to gold-tinted, and light beam after the light path rear end of two DMD is modulated using optical filter to it carries out closing light.

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 is luminous Device 1 includes excitation source 501, wavelength conversion layer 503 and first driving means 505.

The present embodiment includes with the difference part of embodiment illustrated in fig. 2：

Beam splitting system 2 includes optical filter 509 and speculum 507.Optical filter 509 is used to receive wavelength conversion layer 503 sequentially The gold-tinted 53 and blue light 55 of outgoing, and the green glow 53a in blue light 55 and gold-tinted 53 is transmitted from the first optical channel outgoing to DMD511, And the feux rouges 53b in reflection gold-tinted 53 is to speculum 507, speculum 507 reflect feux rouges 53b from the second optical channel outgoing to DMD513。

Preferably, light-source system 500 also includes the optical filter being respectively arranged on the emitting light path of DMD511 and DMD513 515 with speculum 517.The blue light and green reflection of the sequential that speculum 517 is used for after being modulated through DMD511 are to optical filter 515.Optical filter 515 is used to reflect blue light and green glow from speculum 517 and transmits the feux rouges from DMD513, 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, can be by setting The rising angle of DMD 511 and DMD 513 so that it is light beam that the two-beam of DMD511 and DMD513 difference outgoing is converged；This Outward, in some application scenarios, it is also possible to which it is light beam that need not converge the two-beam of DMD511 and DMD513 difference outgoing, Therefore speculum 517 is dispensed with optical filter 515.

Embodiment three

Fig. 6 is referred to, 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 is luminous Device 1 includes excitation source 601, wavelength conversion layer 603 and first driving means 605.

The present embodiment includes with the difference part of embodiment illustrated in fig. 5：

Beam splitting system 2 includes the first light-dividing device 609, the second drive 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 also includes being arranged between light-emitting device 1 and beam splitting system 2 Light path on collecting lens 615, gold-tinted 63 and blue light 65 for collecting light-emitting device sequentially outgoing, and will collect light in 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 drive devices 607 are used to drive the first light-dividing device to rotate 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 the drive device 607 of first driving means 605 and second so that first Light-dividing device 609 and the synchronous axial system of wavelength conversion layer 603, so that the first section is located at the first light, the i.e. emitting light path of gold-tinted 63 On, the second section is located on the second light, the i.e. emitting light path of blue light 65.

The green glow that the first section on first light-dividing device 609 is used to transmit in gold-tinted 63 from the second optical channel outgoing to The DMD 613 and feux rouges that reflects in gold-tinted 63 is from the first optical channel outgoing to DMD 611, the second section be used to reflecting blue light 65 from First optical channel outgoing is to DMD 611.Certainly, the first section can also be made to reflect feux rouges and transmit green glow in practice； Or, the second section can also transmissive portion blue light and reflecting part blue light, this two beams blue light of the wherein transmission and reflection can To be modulated by DMD 611 and DMD 613 respectively, it is also possible to only modulate wherein a branch of in this two beam.

Example IV

Fig. 7 is referred to, 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 source 701, wavelength conversion layer 703B and first driving means 705. Beam splitting system 2 includes the first light-dividing device 703A and light directing arrangement 3.

The present embodiment includes with the difference part of 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 front view of one embodiment of colour wheel 703 in Fig. 7.Two are provided with colour wheel 703 with one heart Set and mutually nested circle ring area 703A and 703B, wherein annulus 703A is light splitting district, i.e. the first light-dividing device；Annulus 703B is wavelength-converting region, i.e. wavelength conversion layer.Light splitting district 703A includes the first section S1, for transmiting green glow to the first light Passage outgoing, and reflect feux rouges to the second optical channel outgoing；Light splitting district 703A also includes the second section S2, for transmiting blue light extremely First optical channel outgoing.Wavelength-converting region 703B includes the first subregion W1, yellow wavelengths transition material is provided with, for producing Huang Color Stimulated Light, the center of the subregion ring-type relative with the first section S1 in light splitting district 703A is set in 180 degree；Also include second Subregion W2, is provided with transparent area, for transmiting blue light, the subregion ring-type relative with the second section S2 in light splitting district 703A Center is set in 180 degree.First driving means 705 are used to drive 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 on wavelength conversion layer 703B and the second subregion W2 outgoing 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, speculum 709 and 715.One rotated in colour wheel 703 In individual cycle T, within the preceding t1 times, the exciting light 71 that excitation source 701 is produced incides first on the 703B of wavelength-converting region Subregion W1 and outgoing gold-tinted, emergent light 73 are collected from the side outgoing of wavelength-converting region 703B dorsad exciting lights through lens 707 Reflected and with 45 degree of first section S1 being incident on light splitting district 703A by speculum 709 and 715 successively afterwards, it is green in gold-tinted Light composition and red color light component are respectively through the first section S1 transmissions and reflection and respectively along the first optical channel outgoing to DMD 711 and edge Second optical channel outgoing is to DMD713.

Afterwards in the t2 times, exciting light 71 incides the second subregion W2 and outgoing blue light, is guided with 45 degree through light directing arrangement 3 Angle is incident on the second section S2, and DMD 711 is incident to from the second optical channel after transmission.Exciting light 71 is on light splitting district 703A 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, go out Penetrate light 73 and may not be 45 degree into the incidence angle of light splitting district 703A but other angles more than 0, this can be according to actual need Design.

So, compared to the light-source system shown in Fig. 6, wavelength conversion layer and the first light-dividing device can be with synchronous axial systems, and this two The synchronism of person more preferably, and does not need control device to control its synchronization, reduces cost and light source volume.

Embodiment five

Fig. 9 is referred to, Fig. 9 is the front view of another embodiment of the first light-dividing device 609 in Fig. 6.With 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 reflects green glow to the second optical channel outgoing to the first optical channel outgoing.Second section R2 is used to transmit green glow to the first light Passage outgoing, and reflect feux rouges to the second optical channel outgoing.3rd section is used for transmissive portion blue light to the first optical channel outgoing, And reflecting part blue light is to the second optical channel outgoing.

Accordingly, first control device is used to control the first light-dividing device 609 so that the first section R1 and the second section R2 be located at the first light emitting light path on, the 3rd section R3 on the emitting light path of the second light.Specifically, it is yellow in outgoing In the T of light, the first section R1 is located on the emitting light path of gold-tinted in forward part time t1, the second section R2 in rear part-time t2 On the emitting light path of gold-tinted, in outgoing blue light, the 3rd section R3 is located on the emitting light path of blue light.

In the present embodiment, rotated in wavelength conversion layer 603 and produce Y (yellow, yellow), B (blue, blue) sequence light In a cycle, DMD 611 is sequentially received G (green, green), R (red, red), B sequence lights, DMD 613 be sequentially received R, G, B sequence light.Therefore, compared to various embodiments above, two DMD can be respectively received three primary colours sequence light in the present embodiment, And then each DMD can one image of each automodulation, 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 The first section S1 in light splitting district in light-source system shown in Ying Di, 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 used to transmit feux rouges to the first optical channel outgoing to DMD 711, and reflects green glow to the second optical channel Outgoing is to DMD 713；Second sub-district is used to transmit green glow to the first optical channel outgoing to DMD 713, and reflects feux rouges to second Optical channel outgoing is to DMD 711.

Embodiment six

Light-source system shown in Fig. 7 is the knot that with the first light-dividing device be fixedly connected wavelength conversion layer by one of which Structure, also has many other light channel structures in practice.Figure 10 is referred to, 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 that light-emitting device 1, beam splitting system 2, the first spatial light are adjusted Device processed 1011 and second space optical modulator 1013.Light-emitting device 1 includes excitation source 1001, wavelength conversion layer 1003B and the One drive 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.

The present embodiment includes with the difference part of embodiment illustrated in fig. 7：

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

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

In the present embodiment, excitation source 1001 is LASER Light Source, for producing blue laser 101.Speculum 1007 sets Put on the emitting light path of blue laser 101.Because 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, ripple Major part reflexes to light splitting district by speculum 1007 after the sequence light of transition zone 1003B outgoing long is collected through collecting lens 1009 1003A.The hot spot formed on wherein light splitting district 1003A is located on colour wheel 1003 with the hot spot of formation on the 1003B of wavelength-converting region Same radius on.Compared to the light-source system shown in Fig. 7, the light path of the light-source system in the present embodiment is compacter.

Embodiment seven

Figure 11 is referred to, Figure 11 is another light-source structure that wavelength conversion layer is fixedly connected 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 source 1101, wavelength conversion layer 1103B and first driving means 1105.Beam splitting system 2 includes the first light-dividing device 1103A and light directing arrangement 3.Wavelength conversion layer 1103B and the first light splitting are filled Put 1103A to be fixedly connected, be co-located on colour wheel 1003.

The present embodiment includes with the difference part of embodiment illustrated in fig. 10：

Wavelength-converting region 1103A is not two mutually nested circle ring areas with light splitting district 1103B.In colour wheel 1103 Heart district domain is provided with a round platform 1103C, and wavelength conversion layer area 1103B is arranged on the side of round platform 1103C, and light splitting district 1103A is arranged on a circle ring area of colour wheel 1103.Blue laser 111 sequentially passes through through hole and the collection of speculum 1107 After lens 1109, incide on the one of section on the 1103B of wavelength-converting region.And the sequence of wavelength-converting region 1103B outgoing Major part is reflexed on light splitting district 1103A and wavelength-converting region by speculum 1107 after row light 113 is collected through collecting lens 1109 The corresponding subregion of section where the upper hot spots of 1103B.

Compared to the light-source system shown in Figure 10, because wavelength-converting region 1103B is separated by with light splitting district 1103A in the present embodiment Farther out, the angle between the sequence light 113 that reflected mirror 1107 is reflected after preceding and reflection is larger, is easier to separate light path.

In the embodiment above, the second subregion on wavelength conversion layer can also be provided with second wave length transition material, use In absorption exciting light and the light of outgoing second.For concrete example, excitation source is used to produce UV light.First point of wavelength conversion layer Yellow fluorescent powder is provided with area, for absorbing UV light and producing gold-tinted；Blue colour fluorescent powder is provided with second subregion, for inhaling Receive UV light and produce blue light, the blue light is the second light.

Embodiment eight

The schematic diagram of the light-source system in the schematic diagram of the light-source system of the present embodiment and above example is essentially the same, no With, in the present embodiment beam splitting system also by the second light be divided into respectively along the first optical channel and the second optical channel outgoing the Three range of wavelength light and the 4th range of wavelength light, then the first spatial light modulator is for the first light along the first optical channel outgoing The first range of wavelength light and the 3rd range of wavelength light of the second light be modulated, and second space optical modulator is used for along the Second range of wavelength light of the first light of two optical channel outgoing is modulated, or is additionally operable to along the of the second optical channel outgoing 4th range of wavelength light of two light is modulated.

With Fig. 5 for example, excitation source 501 is used to produce UV light.It is provided with first subregion of wavelength conversion layer 503 Yellow fluorescent powder, for absorbing UV light and producing gold-tinted；Blue colour fluorescent powder is provided with second subregion, for absorbing UV light and producing Raw blue light, the blue light is the second light.Because the spectrum of the blue light of blue colour fluorescent powder generation is wider, the part of green spectrum is covered Scope.Optical filter 509 in beam splitting system is set to the second light i.e. blue light light splitting of the second subregion generation into the 3rd model simultaneously Enclose wavelength light and the 4th range of wavelength light, i.e. the second blue light and the second green glow.So, the second blue light of generation and the second green glow Spectrum is narrower, and excitation is higher.

Accordingly, when the blue Stimulated Light light splitting for producing the second subregion is into the second blue light and the second green glow, in Fig. 2 In the beam splitting system of shown light-source system, the coated surface 209a in the second prism 209 can be set to reflection blue simultaneously and received Blue light ingredient in laser simultaneously transmits green color components, or transmit blue light ingredient and reflect green color components.In the light source shown in Fig. 5 In the beam splitting system of system, optical filter 509 can be set to the second blue light in reflection blue Stimulated Light simultaneously and transmission second Green glow, or the second blue light of transmission and the second green glow of reflection.In above description, for being to the first light and the second smooth light splitting Same light-dividing device in beam splitting system.

In practice, can also be respectively with two light-dividing devices respectively to the first light and the second light point in beam splitting system 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 is luminous Device 1 includes excitation source 1201, wavelength conversion layer 1203 and first driving means 1205.

Beam splitting system 2 includes optical filter 1221,1209 and 1207, also including speculum 1219.Optical filter 1221 is located at hair In the light path of the outgoing sequential light of electro-optical device 1, in the second blue light 65b in reflection blue Stimulated Light and transmitting blue Stimulated Light The second green glow 65a and yellow Stimulated Light 63.

Optical filter 1209 is located on the emitting light path of the transmitted light beam of optical filter 1221, for transmitting blue Stimulated Light in the The first green glow 63a in two green glow 65a and yellow Stimulated Light 63 and the feux rouges 63b reflected in yellow Stimulated Light 63.Therefore, pass through The second green glow 65a and the first green glow 63a of the transmission of optical filter 1209 are along the first optical channel outgoing to DMD 1211.Filtered 1209 reflection feux rouges 63b again filtered 1207 reflection after along the second optical channel outgoing to DMD1213, and filtered 1221 Reflection the second blue light 65b respectively through speculum 1219 reflection and optical filter 1207 transmit after along the second optical channel outgoing extremely DMD 1213。

When the second blue light 65b and the second green glow 65a that are obtained after the light splitting of blue light 65 are used to modulation, due to two DMD Color for modulating increases so that the colour gamut that two DMD can be modulated is bigger.Accordingly, the He of wavelength conversion layer 1203 DMD1211,1213 working timing figure are as shown in figure 13.Figure 13 A are the sequential of the outgoing blue light of wavelength conversion layer 1203 and gold-tinted Figure.Within the cycle T time that wavelength conversion layer 1203 is rotated, in preceding 0.25T, the outgoing blue light of wavelength conversion layer 1203, Afterwards in 0.75T, the outgoing gold-tinted of wavelength conversion layer 1203.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.Accordingly, DMD1211 is used to modulate the second green glow, DMD in preceding 0.25T 1213 are used to modulate the second blue light.DMD 1211 is used to modulate the first green glow in 0.75T afterwards, and DMD 1213 is used to modulate feux rouges.

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

All be the difference using optical wavelength in above example, using optical filter or filter coating light beam is carried out transmission and Reflect to carry out light splitting or closing light.And the light in some light path is transmitted on a light splitting optical filter or is reflected, Can be arbitrarily devised.Therefore, in all embodiments of the invention, different wavelength range light passes through optical filter in each light path Or the specific optical texture of filter coating, it is provided to conveniently illustrate and row illustrated example, it is not intended to limit using other utilizations Light splitting optical filter or filter coating carry out the optical texture of light path merging or light beam light splitting.

In the present embodiment, multiple subregions can also be set on wavelength conversion layer 1203, is wherein provided with different subregions Different wave length transition material or transparent area.And the light beam of outgoing is split into two kinds of different wave length models at least one subregion The light for enclosing with cause two kinds of different wavelength range light respectively enter two spaces optical modulator in be modulated.

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

Embodiment nine

Figure 14 is 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 example, light-emitting device 1 produces sequential light by colour wheel in above example, and is lighted in the present embodiment Device 1 reflects different colours light outgoing that LED lamp panel sends by the speculum for rotating to produce sequential light successively, compared to reality Example one is applied, cost can be controlled using speculum 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 drive device (not shown).

Illuminating source group 1401 includes the first luminescent device (being in the present embodiment yellow fluorescent powder LED 1401a) and the Two luminescent devices (being in the present embodiment blue-ray LED 1401b), wherein fluorescent material LED refer to and for fluorescent material to be coated in LED chip Surface, the light sent using LED is come excitated fluorescent powder and sends fluorescence.Common yellow fluorescent powder LED refers to yellow fluorescence Powder is coated on blue-light LED chip surface, and excites generation sodium yellow by the blue light that blue-ray LED is launched.Yellow light LED 1401a Annularly it is distributed with blue-ray LED 1401b, and yellow light LED 1401a parallel with the direction of blue-ray LED 1401b emergent lights In the central shaft in the center of circle for crossing the ring-type.

Second reflection unit, in the present embodiment for one rotates mirror 1403, it includes reflecting surface, is arranged at 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, speculum is in the present embodiment, respectively positioned 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 drive device drives the second reflection unit 1403 to move so that reflecting surface is sequentially placed into the first reflection unit On 1405 two emitting light paths of reflecting element, the light that first, second luminescent device sends is reflected into outgoing successively.

In practice, illuminating source group 1401 can also include multiple light-emitting element arrays, in the present embodiment for LED array.Accordingly, the first reflection unit 1405 includes multiple speculums, 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 representation of the illuminating source group 1401 in the present embodiment.Illuminating source group Each LED in 1401 is arranged on to rotate mirror 1403 on the disk in the center of circle, and is circumferentially arranged around mirror 1403 is rotated, and with It is in radially array distribution centered on rotation mirror 1403.It is to send same color in array distribution radially, in LED array The LED of light, in circumferentially arranging, yellow fluorescent powder LED 1401a and blue-ray LED 14101b are alternately distributed.

Embodiment ten

Figure 16 is referred to, Figure 16 is the schematic diagram of the another embodiment of light-source system of the invention.Light-source system 1600 is wrapped 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 used to produce the first light, and the second luminescent device is for producing the second light；First control device is used at least part of Period alternately lights the first luminescent device and the second luminescent device, with first light and the second light of outgoing sequential.

Specifically, the first luminescent device is yellow light LED 11a, and the second luminescent device is blue-ray LED 11b, is respectively used to Produce gold-tinted and blue light.First control device is used for the open and close of the luminescent device of control different colours respectively, makes blue light LED11b and yellow light LED 11a is alternately lighted, to produce the gold-tinted and blue light of sequential.

In the present embodiment, yellow light LED 11a and blue-ray LED 11b can be controlled simultaneously in a certain period first control device Light.Because the green glow obtained after blue light and gold-tinted light splitting is modulated in DMD 1611, then in yellow light LED 11a and In this time period that blue-ray LED 11b is lighted simultaneously, it is that cyan light is adjusted that DMD1611 is used for the closing light of blue light and green glow System, does not influence then for DMD 1613.In this time period, due to two kinds of mixing of light so that DMD 1611 can be adjusted More a kind of color of system so that the colour gamut that the DMD 1611 can be modulated is bigger.

As shown in Figure 17 A, Figure 17 A are the color timing diagram of the emergent light of light-source system 1600.In a cycle T, in t1 In time, blue-ray LED is lighted, then the outgoing blue light of light-emitting device 1；Within the t2 times, yellow light LED is lighted, then the outgoing of light-emitting device 1 Gold-tinted；Within the t3 times, while light blue-ray LED and yellow light LED, then the outgoing of light-emitting device 1 two kinds of closing lights of light, i.e., in vain 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.Accordingly, DMD 1611 is used to modulate blue light in the t1 times, and DMD1613 does not work；DMD1611 is used to adjust in the t2 times Green glow processed, DMD1613 is used to modulate feux rouges；In the t3 times, DMD1611 is used to modulate green light, and DMD1613 is used to modulate feux rouges.

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

If it is easily understood that the optical filter 1609 in beam splitting system 2 is used to transmit feux rouges and reflects green glow, blue light It is modulated in DMD 1611 with the feux rouges obtained after gold-tinted light splitting, green glow is modulated in DMD 1613.Then in Huang In this time period that light LED11a and blue-ray LED 11b is lighted simultaneously, the DMD 1611 is for the closing light to blue light and feux rouges Purple light is modulated, and is not influenceed then for DMD 1613.

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

Embodiment 11

Figure 18 is 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.

The present embodiment includes with the difference part of embodiment illustrated in fig. 16：

Beam splitting system 2 includes filtering apparatus 1805, for the second drive device 1806 for driving filtering apparatus to move and the One control device (not shown).Include the first section, the second section and the 3rd section on filtering apparatus 1805, wherein the first section The first range of wavelength light to the first optical channel outgoing for transmiting the first light, and it is logical to reflect the second range of wavelength light to the second light Road outgoing；Second section is used to reflect the first range of wavelength light to the second optical channel outgoing of the first light, and transmits the second scope Wavelength light is to the first optical channel outgoing；3rd section is used for the light of transmissive portion second to the first optical channel outgoing, and reflecting part Second light to the second optical channel outgoing.First control device is used to control the second drive 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 the 3rd section is at least partially disposed at the On the emitting light path of two light.

For concrete example, as shown in figure 19, Figure 19 is the front view of the filtering apparatus in the 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.The optical filtering is filled Putting the first section 1805A on 1805 is used for transmissive portion blue light and reflecting part blue light, and the second section 1805B is green for transmiting Light simultaneously reflects feux rouges, and the 3rd section 1805C is used to reflect green glow and transmits feux rouges.Second drive device 1806 is motor, is used for The periodic rotary of filtering apparatus 1805 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 two light-source systems of light source and two DMD of the light-source system shown in Figure 18 Modulation timing figure.In a modulation period T, within the preceding t1 times, the first section 1805A of filtering apparatus 1805 is located at sequential 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 used to modulate blue light. In the ensuing t2 times, 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 used to modulate green glow, and DMD1813 is used to modulate feux rouges.In the case where connecing In the t3 times come, the 3rd section 1805C of filtering apparatus 1805 is located on the emitting light path of sequential light, 1802 points of yellow light sources Bright, blue light source 1801 does not work, then DMD1811 is used to modulate feux rouges, and DMD1813 is used to modulate green glow.So, can cause Two DMD distinguish the three primary colours light of modulation timing.

Embodiment 12

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

In the present embodiment, the 4th section is also included on filtering apparatus 1805, for reflecting blue light and transmiting gold-tinted, and From unlike the light-source system shown in Figure 18, the first section 1805A is used to transmit blue light and reflects gold-tinted；When the first section 1805A and the 4th section 1805D is located at when 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.Accordingly, in a modulation period T, the first section, the second section, the 3rd section when filtering apparatus 1805 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 gold-tinted, DMD 1813 are sequentially modulated gold-tinted, feux rouges, green glow and blue light.In the present embodiment, because the color modulated adds gold-tinted so that light The brightness of origin system is improved.

In the light-source system shown in Figure 18, using on a blue light source and a yellow light sources correspondence filtering apparatus Different light splitting district sequential are lighted and come respectively two DMD at least three sequential lights of offer, the light quilt that wherein blue light source is produced Light splitting is into two beam blue lights to two DMD.In practice, it is also possible to two beam blue lights point will be provided using two blue light sources Yong Yu not two DMD modulation.It is described as follows.

Embodiment 13

Figure 22 is 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 is luminous Device includes the first luminescent device 2201A, the second luminescent device 2202, the 3rd luminescent device 2201B and first control device (figure Do not show).Beam splitting system includes filtering apparatus 2205, the second drive device 2206, optical filter 2203 and 2204.

The present embodiment includes with the difference part of embodiment illustrated in fig. 18：

Light-emitting device also includes the 3rd luminescent device, and the 4th light is produced at least part of period in the light of outgoing second. In the present embodiment, the 3rd luminescent device is blue light source 2201B.Filtering apparatus 2205 in beam splitting system includes Liang Ge areas Section, i.e., the second section and the 3rd section on filtering apparatus 1805 in the light-source system shown in Figure 18.As shown in figure 23, Figure 23 It is the front view of filtering apparatus 2205 in the light-source system shown in Figure 22.Include the first section 2205A (i.e. on filtering apparatus 2205 The second section on filtering apparatus 1805), for transmiting green glow and reflecting feux rouges；(filter dress also to include the second section 2205B Put the 3rd section on 1805), for transmiting feux rouges and reflecting green glow.

The gold-tinted (i.e. the first light) that yellow light sources 2202 send is incided on filtering apparatus 2205 at a certain angle, filtered Along the first optical channel outgoing to DMD 2211 after filtered 2204 transmission of light beam of the reflection of device 2205；Filtered device 2205 Along the second optical channel outgoing to DMD2213 after filtered 2203 transmission of light beam of transmission.The light beam that blue light source 2201A sends After (i.e. the second light) filtered 2204 reflection along after the first optical channel outgoing to DMD 2211.Blue light source 2201B sends Along the second optical channel outgoing to DMD 2213 after filtered 2203 reflection of light beam (i.e. the 4th light).

In a modulation period T, within the preceding t1 times, first control device closes yellow light sources 2202, and same time point Light blue radiant 2201A and 2201B, DMD2211 and 2213 are used to modulate blue light.Within the rear t2 times, first control device Light yellow light sources 2202 and close 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 gold-tinted.DMD 2211 is used to modulate along the feux rouges of the first optical channel successively outgoing And green glow, DMD 2213 is for modulating along the green glow and feux rouges of the second optical channel successively outgoing.

In the present embodiment, the luminous intensity of the blue light of modulation in two DMD can be respectively controlled, to better adapt to reality Need.Also, two time spans of blue light outgoing can also be inconsistent, one of blue light source can be in another blue light Lighted in the part-time section of light source igniting, the time length specifically lighted can need the amount of blue light according to corresponding DMD To determine.As a same reason, it is that regulation is used for the green glow of modulation and the amount of feux rouges, can correspondingly controls the first section 2205A It is located at the lighting time of gold-tinted when on the emitting light path of gold-tinted (i.e. the first light) respectively with the second section 2205B.It is readily appreciated that That one of blue light source can also be substituted for the light-emitting component of other colors, such as cyan light emitting elements, accordingly its In DMD be used for green light, feux rouges and the green glow 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.For example it is each section on filtering apparatus 2205 is same When be also configured to transmit the second light and the 4th light (being blue light in the present embodiment), and light source 2201A and 2201B are located at respectively The both sides of filtering apparatus 2205 so that the filtered device 2205 of light of light source 2201A outgoing is directly transmitted to DMD after transmiting 2211, the filtered device 2205 of light of light source 2201B outgoing is directly transmitted to DMD 2213 after transmiting.

Embodiment 14

Figure 24 is 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 that light-emitting device, beam splitting system, the first spatial light modulator 2411 are adjusted with second space light Device processed 2413.

Light-emitting device is used for the light of sequentially outgoing first, the second light and the 3rd light.For concrete example, light-emitting device includes Huang Radiant 2402A, blue light source 2401 and yellow light sources 2402B, are respectively used to produce gold-tinted 22A, blue light 11 and gold-tinted 22B, That is the first light, the second light and the 3rd light；Also include first control device 2403, for controlling three light sources so that luminous dress Put sequentially outgoing gold-tinted 22A, blue light 11 and gold-tinted 22B.

The second light that beam splitting system is used for selfluminous device in future is divided into along the first optical channel and the second optical channel outgoing First sub-light and the second sub-light, the 3rd light for being additionally operable to selfluminous device in future are divided into going 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 to transmit the green color components of gold-tinted, i.e. the second range of wavelength light of the first light and the 3rd light The 5th range of wavelength light, and reflect red color light component, i.e. the first range of wavelength light and the 6th scope ripple of the 3rd light of the first light Light long；Also reflecting part blue light and transmissive portion blue light, the blue light of the transmissive portion correspond to the second sub-light, the reflecting part Blue light corresponds to the first sub-light.Optical filter 2404 is used to transmit blue light and reflects gold-tinted.Blue light source 2401 and gold-tinted 2402A are produced Both sides of the raw light respectively from optical filter 2404 are incident, from same optical channel to filter after transmiting and reflect for filtered 2404 respectively The same side of mating plate 2405 is incident.The light that yellow light sources 2402B is produced is incident from the opposite side of optical filter 2405.Filtered The light of 2405 transmissions along the first optical channel outgoing to DMD 2411, filtered 2405 light of reflection along the second optical channel outgoing extremely DMD 2413。

First spatial light modulator (i.e. DMD 2411) for beam splitting system along the first of the sequentially outgoing of the first optical channel 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 beam splitting system is entered along the second range of wavelength light of the second optical channel sequentially outgoing, the second sub-light and the 6th range of wavelength light Row modulation.

As shown in figure 25, Figure 25 is three light-source systems of light source and two DMD of the light-source system shown in Figure 24 Modulation timing figure.In a modulation period T, within the preceding t1 times, blue light source 2401 is lighted, two yellow light sources not work Make, then two DMD are used to modulate blue light.Within the ensuing t2 times, yellow light sources 2402B is lighted, other two light source Do not work, then DMD2411 is used to modulate green glow, and DMD2413 is used to modulate feux rouges.Within the ensuing t3 times, yellow light sources 2402A is lighted, and other two light source does not work, then DMD2411 is used to modulate feux rouges, and DMD2413 is used to modulate green glow.So, Just can cause that two DMD distinguish the three primary colours light of modulation timing.

In the present embodiment, it is also possible to add time period t 4 in T in a modulation period, within the time, three light sources are same When light, then two DMD are used to modulate the closing light of blue light and gold-tinted, i.e. white light.So, the brightness of light-source system can be improved. In the present embodiment, the ratio of t1, t2, t3 and t4 can need to be adjusted according to the actual ratio to different colours.

Compared to above example, can be by controlling two brightness of yellow light sources respectively come respectively to two in the present embodiment The brightness of feux rouges and green glow that DMD is received is adjusted, and reduces the second drive device driven to filtering apparatus Use；Simultaneously as lighting for light source is not required to be synchronised with the rotation of filtering apparatus, lighted the sequential of different light sources is controlled It is more prone to, the amount of different colours light modulation is also more facilitated in adjustment DMD.

It is easily understood that the one of yellow light sources in the present embodiment can also be substituted for the luminous unit of the 3rd color Part.Corresponding, the optical filtering curve for the optical filter 2405 of light splitting is also configured to transmit a ripple of the 3rd color of light simultaneously The light of scope long and another wave-length coverage light of the 3rd color of light of reflection.

In the present embodiment, three beams sequential can also be produced by the colour wheel that excitation is rotated in light-emitting device Light, and light splitting can also be carried out in beam splitting system to the three beams sequential light by the filter wheel rotated with colour wheel simultaneously come real It is existing.Above example is described to these devices, only needs simple to the light-emitting device in different embodiments and light splitting System is combined, and will not be repeated here.

Embodiment 15

Figure 26 is 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 that light-emitting device, beam splitting system, the first spatial light modulator 2611 are adjusted with second space light Device processed 2613.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.

The present embodiment includes with the difference part of embodiment illustrated in fig. 24：

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

Compared to the optical filter for carrying out light splitting in the light-source system shown in Figure 24 for the light beam to two yellow light sources generations 2605, it is used to that the optical filter 2605 that the light beam that two yellow light sources are produced carries out light splitting is set to transmit green glow in the present embodiment With blue light and reflect feux rouges, and along the second optical channel outgoing to DMD after filtered 2605 transmission of blue light for producing of blue light 2601A 2613.Meanwhile, optical filter 2606 is located on the emitting light path of the reflected beams of optical filter 2605, for transmiting blue light and reflecting other Light.Along the first optical channel outgoing to DMD after filtered 2605 filtered 2606 reflection of feux rouges and green glow of the sequential of reflection 2611, blue light source 2601B are from after the transmission of optical filter 2606 along the first optical channel outgoing to DMD 2611.

As shown in figure 27, Figure 27 is four light-source systems of light source and two DMD of the light-source system shown in Figure 26 Modulation timing figure.In a modulation period T, within the preceding t1 times, first control device controls two blue light sources to light, and two Individual yellow light sources do not work, then two DMD are used to modulate blue light.Within the ensuing t2 times, yellow light sources 2602B is lighted, Its excess-three light source does not work, then DMD2611 is used to modulate green glow, and DMD2613 is used to modulate feux rouges.In the ensuing t3 times Interior, yellow light sources 2602A is lighted, and its excess-three light source does not work, then DMD2611 is used to modulate feux rouges, and DMD2613 is used to modulate Green glow.So, just can cause that two DMD distinguish the three primary colours light of modulation timing.

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

Preferably, in a modulation period T, it is also possible to add time period t 4, within the time, four same time points of light source Bright, then two DMD are used to modulate the closing light of blue light and gold-tinted, i.e. white light.So, the brightness of light source can be improved.In this reality Apply in example, the ratio of t1, t2, t3 and t4 can need to be adjusted according to the actual ratio to different colours.

Compared to the light-source system shown in Figure 24, two blue light sources are used in the present embodiment, can respectively control 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 SECO of the optical filtering curve, each light source of each optical filter, the modulation timing of DMD With the citing that specific light channel structure etc. is not limited to the above, those skilled in the art can be according to specific design of the present invention.

Embodiment 16

Figure 28 is 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 that excitation source 2801 and 2802, wavelength conversion layer 2805, first driving means 2806 and first are controlled Device (not shown).Beam splitting system includes optical filter 2814 and speculum 2812.

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

On wavelength conversion layer 2805 include the first subregion 2805A, the second subregion 2805B, the 3rd subregion 2805C and the 4th point Area 2805D, is respectively arranged with first, second, third and fourth functional material, be respectively used to absorb exciting light and generation first, Second, third, the 4th light.In the present embodiment, two excitation sources are UV light, and first and the 3rd is provided with Huang on subregion Optical wavelength conversion material, second and the 4th is provided with blue light wavelength transition material on subregion.First point within the same time period Area and the 3rd subregion are located on the emitting light path of the exciting light that two excitation sources are produced respectively, the second subregion in another time period It is located on the emitting light path of the exciting light that two excitation sources are produced respectively with the 4th subregion.

First driving means 2806 are used to drive wavelength conversion layer 2805 so that exciting light shape on wavelength conversion layer 2805 Into hot spot act on the wavelength conversion layer 2805 by predefined paths.Meanwhile, first control device is used to control two exciting lights Source so that at least part of period when the first subregion 2805A and the 3rd subregion 2805C is located in the light path of two beam exciting lights hands over For lighting, when the second subregion 2805B and the 4th subregion 2805D is located in the light path of two beam exciting lights, at least part of period is simultaneously Light.

For example it is bright in detail below.As shown in figure 29, Figure 29 is the wavelength conversion layer in the light-source system shown in Figure 28 Front 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 set in 180 degree, and the second subregion 2805B and the 4th subregion 2805D is set in 180 degree.First driving means 280 is 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 by disk the center of circle so that within the same time in 180 degree set subregion excited positioned at this two respectively On the emitting light path of the exciting light that light source is produced.

In the present embodiment, wavelength conversion layer 2805 is set to reflective, i.e., exciting light is located at the light path of Stimulated Light The same side of the wavelength conversion layer 2805.Can by wavelength conversion layer 2805 dorsad excitation source side place speculum or Person is coated with reflectance coating to realize, this is known technology, be will not be repeated here.

Two reflectors 2803 and 2804 are provided with the emitting light path of wavelength conversion layer 2805, are respectively used to collect and are swashed Stimulated Light produced by light emitting source 2801 and the excitation wavelength conversion layer of excitation source 2802, is referred to as the first Stimulated Light and second Stimulated Light.A through hole is each provided with two reflectors, for transmiting the exciting light that corresponding excitation source is produced. Two reflectors are distinguished the light 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 when wavelength conversion layer is transmission-type, i.e., the light path of the light path of exciting light and Stimulated Light is located at wavelength respectively The both 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 that the first light and the 3rd light to be respectively classified into two along the first optical channel and the second optical channel outgoing Beam different wavelength range light, and respectively along the first optical channel and second the second light of optical channel outgoing and the 4th light.In the present embodiment In, speculum 2812 is located on the emitting light path of the second Stimulated Light, and the first Stimulated Light and the reflection of reflected mirror 2,812 second are received Laser is incident to the both sides of optical filter 2814 respectively.Optical filter 2814 is used to reflect green in gold-tinted (i.e. the first light and the 3rd light) Light composition simultaneously transmits red color light component, is additionally operable to reflection blue light (i.e. the second light and the 4th light) along the first optical channel and the second optical channel Outgoing.DMD 2811 is used to be modulated filtered 2814 light beam along the first optical channel outgoing.It is right that DMD 2813 is used for Filtered 2814 light beam along the second optical channel outgoing is modulated.

Preferably, the reflected cover 2803 of the first Stimulated Light sequentially enters the dodging and collecting lens of dodging device 2807 after collecting After 2810 again outgoing to optical filter 2814.Likewise, the reflected cover 2804 of the second Stimulated Light sequentially enters dodging device after collecting After 2808 dodging and collecting lens 2809 again outgoing to optical filter 2814.So, 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 the light-source system shown in Figure 28.It is described as follows.In ripple In a cycle T that conversion layer long 2805 is rotated, when the second subregion 2805B and the 4th subregion 2805D are excited positioned at two beams respectively When in the light path of light, first control device controls two excitation sources to light, then to receive optical filter 2814 simultaneously anti-for two DMD The blue light penetrated；When the first subregion 2805A and the 3rd subregion 2805C are located in the light path of two beam exciting lights respectively, in preceding t1 Interior, first control device control excitation source 2802 is lighted, and excitation source 2801 is closed, then DMD2813 receives green glow, DMD 2811 receives feux rouges；Within the rear t2 times, first control device control excitation source 2801 is lighted, excitation source 2802 Close, then DMD2813 receives feux rouges, and DMD2811 receives green glow.

Preferably, when the first subregion 2805A and the second subregion 2805C are located in the light path of two beam exciting lights respectively, the phase Between have in part-time section t3, first control device control excitation source 2801 and 2802 is lighted simultaneously, then two DMD connect simultaneously Receive the closing light of feux rouges and green glow, i.e. gold-tinted.This causes that the brightness of light-source system is improved.

In the present embodiment, when the second subregion 2805B and the 4th subregion 2805D are located in the light path of two beam exciting lights respectively When, the length of the working time of two beam exciting lights can be adjusted, to adjust the amount of the blue light that two DMD are respectively received, and then Adjust the color of the image of final light-source system outgoing.As a same reason, it is also possible in the first subregion 2805A and the 3rd subregion 2805C is located at when in the light path of two beam exciting lights respectively, the length of the working time of two beam exciting lights is adjusted respectively, to adjust two Sequential that individual DMD is respectively received is red, green glow amount.

In the present embodiment, two excitation sources can also be blue light source, the second subregion 2805B and the 4th subregion Reflective areas are provided with 2805D, for reflecting blue light.When excitation 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, first, second, third and fourth light can also be different colours light, can be according to two DMD points The light of modulation is not needed to determine the spectrum of the four bundles light and for by the optical filtering of the first light and the optical filter of the 3rd smooth light splitting Curve.

Embodiment 17

Figure 31 is 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 that excitation source 3101 and 3102, wavelength conversion layer 3105, first driving means 3106 and first are controlled Device (not shown).Beam splitting system includes optical filter 3109, the speculum 3103 and 3104 with through hole.

The present embodiment includes with the difference part of embodiment illustrated in fig. 28：

Reflector is placed on the emitting light path of wavelength conversion layer 2805 so that luminous dress in light-source system shown in Figure 28 Put after the reflected cover of the sequential light for sending is collected and enter back into beam splitting system.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 gold-tinted and the red color light component reflected in gold-tinted, It is additionally operable to respectively transmitted second light and the 4th light (being blue light in the present embodiment).What the first excitation source 3101 was produced excites Light is incident to wavelength conversion layer 3105 after sequentially passing through through hole and collimation lens 3108 on speculum 3103.Wavelength conversion layer The collimated lens 3108 of first Stimulated Light of 3105 outgoing reflex to optical filter 3109 after collimating by speculum 3103.Second excites The exciting light that light source 3102 is produced sequentially passes through incident after through hole on speculum 3104, optical filter 3109 and collimation lens 3107 To wavelength conversion layer 3105.The collimated lens 3107 of second Stimulated Light of the outgoing of wavelength conversion layer 3105 enter optical filter after collimating 3109。

The work schedule concrete example of the light-source system shown in Figure 31 is as follows.In the week that wavelength conversion layer 3105 is rotated In phase T, when the second subregion 2805B and the 4th subregion 2805D are located in the light path of two beam exciting lights respectively, first control device Two excitation sources of control are lighted, then DMD 3113 receives the blue light of the transmission of optical filter 3109, and DMD 3111 is received successively Filtered 3109 transmission and the blue light of the reflection of speculum 3104；When the first subregion 2805A and the 3rd subregion 2805C are located at respectively When in the light path of two beam exciting lights, within the preceding t1 times, first control device control excitation source 3101 is lighted, excitation source 3102 close, then DMD3113 receives feux rouges, and DMD3111 receives green glow；Within the rear t2 times, first control device control Excitation source 3102 is lighted, and excitation source 3101 is closed, then DMD3113 receives green glow, and DMD3111 receives feux rouges.

For convenience of describing, the first light and the 3rd light are used in various embodiments above for gold-tinted, the second light and the 4th light For blue light for example is illustrated.In practice, the four bundles light can also be other color of light, be not limited to described above 's.It is corresponding, the specific color of the optical filtering curve of optical filter or filtering apparatus in beam splitting system also according to the four bundles light And specific design.

In various embodiments above, wavelength conversion layer with different subregions and in 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.Corresponding, for driving the wavelength conversion layer or filtering apparatus fortune work( Drive device can be linear translation device or take other to be appropriately arranged with mode, causing 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 various embodiments above, two light of DMD outgoing can be projected in same viewing area, to form a width figure Picture, as shown in figure 32, Figure 32 is the structural representation of one embodiment of light-source system of the invention.Two light of DMD outgoing Two viewing areas can also be respectively projected, to form two images, as shown in figure 33.Figure 33 is light-source system of the invention Another embodiment structural representation.

Each embodiment is described by the way of progressive in this specification, and what each embodiment was stressed is and other The difference of embodiment, between each embodiment identical similar portion mutually referring to.

The embodiment of the present invention also provides a kind of optical projection system, including light-source system, and the light-source system 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. Additionally, above-mentioned light-emitting device can also be applied to illuminator, such as stage lighting illumination.

Embodiments of the present invention are the foregoing is only, the scope of the claims of the invention is not thereby limited, it is every using this Equivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other correlations Technical field, is included within the scope of the present invention.

Claims

1. a kind of light-source system, it is characterised in that including：

Beam splitting system, including the first optical filter and the first speculum, first optical filter are used for the first light described in received in sequence With second light；First optical filter by first light be divided into along the first range of wavelength light of the first optical channel outgoing with And shining the second range of wavelength light on first speculum, first speculum is by the second range of wavelength light edge Second optical channel outgoing；First optical filter is additionally operable to go out at least part of light of second light along first optical channel Penetrate.

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

Second optical filter is placed on first optical channel and positioned at the light from the first optical filter outgoing of the second light Lu Shang；3rd optical filter is placed on second optical channel and on the emitting light path of first speculum；

Second optical filter is used to receive second light, and second light is divided into continuation along the first optical channel outgoing The 3rd range of wavelength light and shine the 4th range of wavelength light on the 3rd optical filter, and by the first scope ripple Light long continues along the first optical channel outgoing；

3rd optical filter is used for the 4th range of wavelength light along the second optical channel outgoing, and by described second Range of wavelength light continues along the second optical channel outgoing.

3. light-source system according to claim 1 and 2, it is characterised in that the light-source system also includes：

Second space optical modulator, for being modulated along the light of the second optical channel outgoing to the beam splitting system.

4. light-source system according to claim 3, it is characterised in that the light-source system also includes：Second speculum and 4th optical filter；

Second speculum is placed on the emitting light path of first spatial light modulator, 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, for the second space light to be adjusted It is light beam outgoing that the light of device outgoing processed and the light of second speculum reflection are converged.

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

Light source, for producing exciting light；

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

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

Wherein：

The light source is used to produce UV light, yellow fluorescent powder is provided with first subregion, for absorbing the UV light and producing Raw yellow Stimulated Light, is provided with blue colour fluorescent powder, for absorbing the UV light and producing blue Stimulated Light on second subregion；

Or, the light source is used to produce blue excitation light, yellow fluorescent powder is provided with first subregion, for absorbing State blue excitation light and produce yellow Stimulated Light, second subregion is set to transparent area, for transmiting the blue excitation light.

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

First luminescent device, for producing the first light；

Second luminescent device, for producing the second light；

First control device, for first luminescent device and second luminescent device to be replaced into point at least part of period It is bright, with first light and the second light of outgoing sequential；

Wherein, first luminescent device is yellow light LED or laser, produces gold-tinted, and second luminescent device is blue-ray LED Or laser, produce blue light.

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

8. light-source system according to claim 2, it is characterised in that first light is gold-tinted, second light is the One blue light, the first range of wavelength light is the first green glow, and the second range of wavelength light is the second blue light, the 3rd scope Wavelength light is the second green glow, and the 4th range of wavelength light is feux rouges.

9. light-source system according to claim 2, it is characterised in that the first scope ripple described in first filter transmission Light long, reflects the second range of wavelength light；

3rd range of wavelength light and the first range of wavelength light described in second filter transmission, reflect the 4th scope Wavelength light；

3rd optical filter reflects the 4th range of wavelength light, transmits the second range of wavelength light.

10. a kind of optical projection system, it is characterised in that including the light-source system as described in any one in claim 1 to 10.