CN104252094B - Colour wheel and optical projection system - Google Patents

Abstract

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

Description

Colour wheel and optical projection system

The Application No. 201210370655.9 that the application is submitted in 2012 for applicant for 09 month on the 28th, denomination of invention For 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 by its modulation, modulates the monochromatic light image for obtaining quick alternately switching on screen, 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, it is modulated typically using R (red, HONGGUANG), 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 adopt exciting light to excite the different segmentations on colour wheel successively with outgoing different colours successively Light.In the structure shown here, excitation source adopts blue led (Light Emitting Diode, light emitting diode) or blue sharp Light.There are on colour wheel three subregions, a subregion is provided with transparent area, for transmiting blue light；Another two subregion is respectively arranged with Green light fluorescent powder and red light fluorescent powder, are respectively used to absorb exciting light and produce green Stimulated Light and red Stimulated Light.

But, in this phosphor source, red fluorescence powder for the working life and luminous efficiency of limiting light source 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 affect its luminous efficiency and service life in turn again, form vicious cycle.

The content of the invention

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

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

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

Beam splitting system, the first light for selfluminous device in future are divided into going out along the first optical channel and the second optical channel respectively The the first range of wavelength light penetrated and the second range of wavelength light, 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, is modulated for the light to the beam splitting system along the first optical channel outgoing；

Second space photomodulator, adjusts at least part of light to the beam splitting system along the second optical channel outgoing 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 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 are a branch of Light beam, so that can be modulated to three light beams using two spaces photomodulator；And the present invention can be adopted 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.

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 the light-source system of the present invention；

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

Fig. 3 B and Fig. 3 C is respectively a kind of embodiments of the DMD211 and DMD213 to the modulation time diagram of different color light；

Fig. 4 is another embodiment of DMD213 to the modulation time diagram of HONGGUANG；

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

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

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

Figure 13 A are the sequential charts of 1203 outgoing blue light of wavelength conversion layer and gold-tinted；

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

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

Structural representations of the Figure 15 for the illuminating source group in the embodiment shown in Figure 14；

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

Figure 17 A are the color sequential chart of the light-source system emergent light shown in Figure 16；

Figure 17 B and Figure 17 C is respectively modulation time diagrams of the DMD1209 and DMD1211 to different color light；

Figure 18 is the schematic diagram of the another embodiment of the light-source system of the present 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 the modulation timing figure of the light-source system with two DMD of two light sources 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 the light-source system of the present 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 the light-source system of the present invention；

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

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

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

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

Figure 32 is the structural representation of one embodiment of the light-source system of the present invention；

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

Specific embodiment

The invention thinking of the present 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 into the two beam different wavelength range light along different propagateds, so, in the difference outgoing two of a certain period not Co-wavelength scope light is adjusted to two spaces photomodulator, at least part of light of another the second light of period outgoing to the two spatial light One in device processed, so that can not shared the same light to three beams with two spaces photomodulator being modulated；At the same time it can also pass through by Yellow fluorescent powder with higher light conversion efficiency be stimulated generation the light splitting of yellow Stimulated Light into HONGGUANG and green glow, so as to keep away Exempt to produce HONGGUANG using the relatively low red light fluorescent powder of light conversion efficiency, to improve the efficiency of light-source system.

As shown in figure 1, Fig. 1 is a specific example of the yellow spectrum that yellow fluorescent powder 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 the spectrum and HONGGUANG of green glow.Therefore, gold-tinted light splitting can be become green glow And HONGGUANG.For ease of description, the spectrum of below-mentioned gold-tinted covers red color light component and green color components, and gold-tinted can Jing filters Electro-optical device light splitting is into the HONGGUANG and green glow along different propagateds.

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

Embodiment one

Fig. 2 is referred to, Fig. 2 is the schematic diagram of one embodiment of the light-source system of the present 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 photomodulator 213.

Light-emitting device 1 is included for producing excitation source 201, wavelength conversion layer 203 and the first driving means of 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 absorbing exciting light the first light of outgoing；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 the 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 203 periodic rotary of conversion layer.

Beam splitting system 2 is used for the first light of selfluminous device in future 1 and 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 adjusted for the light to beam splitting system 2 along the first optical channel outgoing System.Second space photomodulator 213 is modulated at least part of light to beam splitting system 2 along the second optical channel outgoing.Jing The light of the first spatial light modulator 211 and the modulation of second space photomodulator 213 carries out closing light and enters view field.

In the present embodiment, beam splitting system 2 by gold-tinted light splitting into green glow, i.e. the first range of wavelength light, and HONGGUANG, 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 HONGGUANG, wherein the first scope Wavelength light and the second range of wavelength light are not necessarily green glow and HONGGUANG respectively, two kinds of scope light simply relative concept, first Range of wavelength light and the second range of wavelength light can also be HONGGUANG and green glow respectively.

First spatial light modulator 211 for being modulated to the blue light and green glow of sequential, second space photomodulator 213 For being modulated to HONGGUANG.Due to the conversion efficiency of yellow fluorescent powder it is higher, and blue light directly by luminescent device produce, therefore Yellow fluorescent powder is excited with blue light and is produced three primary colours and is caused the efficiency of light source higher.

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

The Stimulated Light 23 of 203 outgoing of wavelength conversion layer enters the prism from the side 207b of the first prism 207, and in side There is total reflection on 207a, the second prism 209 is transmitted into simultaneously from the side 209c of the second prism 209 Jing after side 207c transmissions Reach on the 209a of side.Side 209a is coated surface, is coated with filter coating thereon, and the filter coating transmits HONGGUANG, and reflect blue light and Green glow.The blue light and green glow that sequential is produced Jing after coated surface 209a reflections occurs to be totally reflected on the 209c of side again, and in side Transmit to enter the first spatial light modulator 211 from the first optical channel on 209b.Blue light and green glow after modulated is with another angle Degree incident side 209b is simultaneously transmitted, and total reflection occurs on the 209c of side, then Jing after coated surface 209a reflections from side 209c is transmitted and is transmitted away from the first prism 207.And HONGGUANG enters second from the second optical channel Jing after coated surface 209a transmissions Spatial light modulator 213.HONGGUANG 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 sequential chart of 203 emergent light of wavelength conversion layer.In the present embodiment In, the first subregion on wavelength conversion layer 203 accounts for 270 degree, and the second subregion accounts for 90 degree.From the second subregion of wavelength conversion layer 203 The input path for initially entering exciting light starts, within the cycle T time that wavelength conversion layer 203 is rotated, the work of light-source system Make process as follows.In front 0.25T, 203 outgoing blue light of wavelength conversion layer, in rear 0.75T, 203 outgoing of wavelength conversion layer is yellow Light.Accordingly, in front 0.25T, DMD211 is used to modulate blue light, and DMD213 is not used for modulating light beam.DMD211 in 0.75T afterwards For modulating green glow, DMD213 is used to modulate HONGGUANG.As shown in Fig. 3 B and Fig. 3 C, Fig. 3 B and Fig. 3 C be respectively DMD211 and A kind of embodiments of the DMD213 to the modulation time diagram of different color light.In this case, HONGGUANG and green glow in each cycle T It is utilized entirely so that the utilization of light source is most efficient.However, this may not be practical situation, because this may cause three base The chromaticity coordinates of the white light of Colored light mixing has deviation with predetermined chromaticity coordinates.In practice, can be by using this two DMD makes up to satisfaction the chromaticity coordinates that controls white light to the length of the modulation time of different colours light.For example, in the present embodiment In, cause the chromaticity coordinates of white light partially red if HONGGUANG is excessive, the modulation time that can control DMD213 shortens so that one The HONGGUANG fixed time in section is invalid light.As shown in figure 4, Fig. 4 is another enforcement of DMD213 to the modulation time diagram of HONGGUANG Example.In the diagram, in each cycle T, the hindfoot portion of HONGGUANG is rejected.In practice, it is also possible to by the leading portion of HONGGUANG Give up, or centre one end or several sections give up, what this all will be appreciated that.

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

In the present embodiment, the first light of light-emitting device sequentially outgoing and the second light, and the first light is divided 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 photomodulator, at least part of light to the two spatial light modulators of another the second light of period outgoing It is individual, so that three beams can not shared the same light with two spaces photomodulator being modulated.

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 HONGGUANG, in this case, DMD211 is used to modulate HONGGUANG, and DMD213 is used to modulate green Light and blue light；Or the optical filtering curve on coated surface 209a is changed to transmit green glow, and reflect HONGGUANG and blue light；Then DMD211 is used for Modulation HONGGUANG and blue light, DMD213 are used to modulate green glow.Can design coated surface 209a's in practice according to actual needs Optical filtering curve.

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 the closing light of the light beam Jing after two spaces light modulator modulates.In practice, it is also possible to come using light splitting optical filter Light splitting is carried out to gold-tinted, and closing light is carried out come the light beam after modulating to which using optical filter in the light path rear end of two DMD.

Embodiment two

As shown in figure 5, Fig. 5 is the schematic diagram of another embodiment of the light-source system of the present 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 photomodulator 513.It is luminous Device 1 includes excitation source 501, wavelength conversion layer 503 and first driving means 505.

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

Beam splitting system 2 includes optical filter 509 and reflecting mirror 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 HONGGUANG 53b reflected in gold-tinted 53 is to reflecting mirror 507, reflecting mirror 507 reflect HONGGUANG 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 reflecting mirror 517.Reflecting mirror 517 for by Jing DMD511 modulation after sequential blue light and green reflection to optical filter 515.Optical filter 515 is used for reflection from the blue light and green glow of reflecting mirror 517 and transmits the HONGGUANG from DMD513, will The light beam of DMD511 and DMD 513 modulation outgoing is combined into light beam.It is understood that in other embodiments, can pass through The rising angle of DMD511 and DMD513 is set so that DMD511 and DMD513 distinguishes the two-beam of outgoing and converges as light beam； Additionally, in some application scenarios, it is also possible to which it is a branch of that need not converge the two-beam that DMD511 and DMD513 distinguishes outgoing Light, therefore reflecting mirror 517 is dispensed with optical filter 515.

Embodiment three

Fig. 6 is referred to, Fig. 6 is the schematic diagram of another embodiment of the light-source system of the present 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 photomodulator 613.It is luminous Device 1 includes excitation source 601, wavelength conversion layer 603 and first driving means 605.

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

Beam splitting system 2 includes the first light-dividing device 609, the second driving means 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, for collecting the gold-tinted 63 and blue light 65 of light-emitting device sequentially outgoing, and in the light that will be collected After to the first light-dividing device 609.First light-dividing device 609 is in the form of annular discs, and is circumferentially divided into the first section and the second section.The Two driving means 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 first driving means 605 and the second driving means 607 so that first Light-dividing device 609 and 603 synchronous axial system of wavelength conversion layer, 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 first section on first light-dividing device 609 be used to transmiting green glow in gold-tinted 63 from the second optical channel outgoing to The DMD613 HONGGUANG that reflects in gold-tinted 63 is from the first optical channel outgoing to DMD611, the second section are used to reflecting blue light 65 from the One optical channel outgoing is to DMD611.Certainly, in practice the first section can also be made to reflect HONGGUANG and transmit green glow；Or Person, the second section can also transmissive portion blue light reflecting part blue light, wherein this two beams blue light of the transmission and reflection can be with Modulated by DMD611 and DMD613 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 the light-source system of the present invention.In the present embodiment, light Origin system 700 includes light-emitting device 1, beam splitting system 2, the first spatial light modulator 711 and second space photomodulator 713.Send out Electro-optical device 1 includes excitation source 701, wavelength conversion layer 703B and first driving means 705.Beam splitting system 2 includes the first light splitting Device 703A and light directing arrangement 3.

Include in place of the present embodiment and the difference 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 Arrange 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 HONGGUANG is reflected 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, is provided with yellow wavelengths transition material, for producing Huang Color Stimulated Light, the center of the subregion ring-type relative with the first section S1 in light splitting district 703A are arranged 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 arranged 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 for by 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, reflecting mirror 709 and 715.One rotated in colour wheel 703 In individual cycle T, within the front t1 times, the exciting light 71 that excitation source 701 is produced incides on the 703B of wavelength-converting region first Subregion W1 outgoing gold-tinted, side outgoing of the emergent light 73 from wavelength-converting region 703B dorsad exciting lights, and Jing lens 707 are collected Reflected by reflecting mirror 709 and 715 and with 45 degree of first section S1 being incident in light splitting district 703A successively afterwards, it is green in gold-tinted Light composition and red color light component difference the first sections of Jing S2 are transmitted and are reflected and respectively along the first optical channel outgoing to DMD711 and edge Second optical channel outgoing is to DMD713.

Afterwards in the t2 times, exciting light 71 incides the second subregion W2 outgoing blue light, and Jing light directing arrangements 3 are guided with 45 degree Angle is incident on the second section S2, Jing after transmission is incident to DMD711 from the second optical channel.Exciting light 71 is in light splitting district 705A The line of the hot spot A of the formation and hot spot B formed on the 703B of wavelength-converting region is through ring heart.Certainly, in practice, Emergent light 73 may not be 45 degree into the angle of incidence of light splitting district 703A but other angles more than 0, and this can be according to reality Need design.

So, the light-source system shown in Fig. 6 is compared, wavelength conversion layer and the first light-dividing device can be with synchronous axial systems, and this two The synchronicity 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 is to the first optical channel outgoing, and reflects green glow to the second optical channel outgoing.Second section R2 is used to transmit green glow to the first light Passage outgoing, and HONGGUANG is reflected 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, in forward part time t1, the first section R1 is located on the emitting light path of gold-tinted, 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, rotate in wavelength conversion layer 603 and produce Y (yellow, yellow), B (blue, blue) sequence light In a cycle, DMD611 is sequentially received G (green, green), R (red, red), B sequence lights, DMD613 be sequentially received R, G, B sequence lights.Therefore, various embodiments above is compared, two DMD can be respectively received three primary colours sequence light in the present embodiment, enter And each DMD can one image of each automodulation, and at any period, two DMD compare above reality all in working condition Apply example and 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 HONGGUANG to the first optical channel outgoing to DMD611, and reflects green glow to the second optical channel Outgoing is to DMD613；Second sub-district is used to transmit green glow to the first optical channel outgoing to DMD613, and reflects HONGGUANG to the second light Passage outgoing is to DMD611.

Embodiment six

Light-source system shown in Fig. 7 is the knot that wavelength conversion layer is fixedly connected by one of which with the first light-dividing device Structure, also has many other light channel structures in practice.Figure 10 is referred to, Figure 10 is another of the light-source system of the present 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 photomodulator 1013.Light-emitting device 1 includes excitation source 1001, wavelength conversion layer 1003B and One driving means 1005.Beam splitting system 2 includes the first light-dividing device 1003A and light directing arrangement 3.Wavelength conversion layer 1003B and First light-dividing device 1003A is fixedly connected, and is co-located on colour wheel 1003.

Include in place of the present embodiment and the difference 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 illumination of wavelength-converting region 1003B Light path be located at its same side.And the first section S1 on the 1003B of wavelength-converting region and the first subregion W1 in light splitting district 1003A Arrange in 0 degree, the second section S2 is in 0 degree of setting, i.e. light splitting region and corresponding with the second subregion W2 in light splitting district 1003A Wavelength conversion region be disposed adjacent.

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

In the present embodiment, excitation source 1001 is LASER Light Source, for producing blue laser 101.Reflecting mirror 1007 sets Put on the emitting light path of blue laser 101.Due to the etendue of laser it is smaller, and the etendue of Stimulated Light compared with Greatly so that blue laser 101 is passed through and entered into Jing after collecting lens 1009 on the 1003B of wavelength-converting region from the through hole, ripple The sequence light of long switch region 1003B outgoing major part Jing after the collection of collecting lens 1009 is reflexed to light splitting district by reflecting mirror 1007 1003A.The hot spot for wherein being formed in light splitting district 1005A and the hot spot formed on the 1005B of wavelength-converting region are located on colour wheel 1005 Same radius on.The light-source system shown in Fig. 8 is compared, the light path of the light-source system in the present embodiment is compacter.

Embodiment seven

Figure 11 is referred to, Figure 11 is the light-source structure that wavelength conversion layer is fixedly connected by another kind 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 photomodulator 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 dress Put 1103A to be fixedly connected, be co-located on colour wheel 1003.

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

Wavelength-converting region 1103A is not mutually nested two circle ring area 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 is sequentially through through hole and the collection of reflecting mirror 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 The major part Jing after the collection of collecting lens 1109 of row light 113 is reflexed in light splitting district 1103A and wavelength-converting region by reflecting mirror 1107 The corresponding subregion of section that the upper hot spots of 1103B are located.

The light-source system shown in Figure 10 is compared, as 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 front 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 absorbing exciting light the second light of outgoing.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 beam splitting system is also divided into respectively the second light along the of the first optical channel and the second optical channel outgoing in the present embodiment 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 photomodulator is for along Second range of wavelength light of the first light of two optical channel outgoing is modulated, or is additionally operable to along 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 are the second light.As the spectrum of the blue light of blue colour fluorescent powder generation is wider, the part of green spectrum is covered Scope.Optical filter 505 in beam splitting system is set to the second light i.e. blue light light splitting for producing the second subregion simultaneously into the 3rd model Enclose wavelength light and the 4th range of wavelength light, i.e. the second blue light and the second green glow.So, second blue light and the second green glow of generation Spectrum it is narrower, 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 be 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 505 can be set to while the second blue light in reflection blue Stimulated Light transmiting second Green glow, or transmit the second blue light and reflect the second green glow.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 the light-source system of the present 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 photomodulator 1213.It is luminous Device 1 includes excitation source 1201, wavelength conversion layer 1203 and first driving means 1205.

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

Beam splitting system 2 includes optical filter 1221,1209 and 1207, also including reflecting mirror 1219.Optical filter 1221 is located to be sent out In the light path of 1 outgoing sequential light of electro-optical device, in the second blue light 65b in reflection blue Stimulated Light 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 1221 transmitted light beam of optical filter, for transmitting blue Stimulated Light in the The first green glow 63a in two green glow 65a and yellow Stimulated Light 63 HONGGUANG 63b reflected in yellow Stimulated Light 63.Therefore, Jing The second green glow 65a and the first green glow 63a of the transmission of optical filter 1209 is along the first optical channel outgoing to DMD1211.Filtered HONGGUANG 63b of 1209 reflections reflects tailing edge the second optical channel outgoing for filtered 1207 again to DMD1213, and filtered 1221 Second blue light 65b of reflection transmits the outgoing of the second optical channel of tailing edge extremely respectively through the reflection of reflecting mirror 1219 and optical filter 1207 DMD1213。

When the second blue light 65b and the second green glow 65a that obtain after 65 light splitting of blue light are used to modulation, due to two DMD Color for modulation increases so that the colour gamut that two DMD can be modulated is bigger.Accordingly, 1203 He of wavelength conversion layer DMD1211,1213 working timing figure it is as shown in figure 13.Figure 13 A are the sequential of 1203 outgoing blue light of wavelength conversion layer and gold-tinted Figure.Within the cycle T time that wavelength conversion layer 1203 is rotated, in front 0.25T, 1203 outgoing blue light of wavelength conversion layer, Afterwards in 0.75T, 1203 outgoing gold-tinted of wavelength conversion layer.As shown in Figure 13 B and Figure 13 C, Figure 13 B and Figure 13 C are respectively Modulation time diagrams of the DMD1211 and DMD1213 to different color light.Accordingly, in front 0.25T, DMD1211 is used for modulation second Green glow, DMD1213 are used to modulate the second blue light.In 0.75T, DMD1211 is used to modulate the first green glow afterwards, and DMD1213 is used to modulate HONGGUANG.

It is easily understood that the second green glow can also be not used in modulation, as long as DMD1211 is not when which enters DMD1211 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, in each light path, different wavelength range light passes through optical filter Or the specific optical texture of filter coating, it is provided to conveniently illustrate and row illustrated example, 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, be 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 is so that two kinds of different wavelength range light are modulated in respectively enteing two spaces photomodulator.

In the present embodiment, the first subregion and the second subregion can also arrange 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 the light-source system of the present invention.With Unlike above example, in above example, light-emitting device 1 produces sequential light by colour wheel, and lights in the present embodiment Device 1 reflects different colours light outgoing that LED lamp panel sends to produce sequential light successively by the reflecting mirror that rotates, compares reality Example one is applied, cost can be controlled using reflecting mirror in the present embodiment.

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

Illuminating source group 1401 includes the first luminescent device (being yellow fluorescent powder LED1401a in the present embodiment) and Two luminescent devices (being blue-ray LED 1401b in the present embodiment), 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 fluorescent powder Blue-light LED chip surface is coated on, and generation sodium yellow is excited by the blue light that blue-ray LED is launched.Yellow light LED 1401a and Blue-ray LED 1401b is annularly distributed, and the direction of yellow light LED 1401a and blue-ray LED 1401b emergent lights is somebody's turn to do each parallel to crossing The central shaft in the center of circle of ring-type.

Second reflection unit, rotates mirror 1403 for one in the present embodiment, and which includes reflecting surface 1403a, is arranged at luminous The side of the emergent light of light sources 1401, and be located between the first luminescent device 1401a and the second luminescent device 1401b.

First reflection unit 1405 includes two reflecting elements, is reflecting mirror 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 is reflexed to Second reflection unit 1403.

Second driving means 1403 drive the second reflection unit 1403 to move so that reflecting surface 1403a is sequentially placed into first On the emitting light path of two reflecting elements of reflection unit 1405, the light that first, second luminescent device sends is reflected successively Outgoing.

In practice, illuminating source group 1401 can also include multiple light-emitting element arrays, in the present embodiment for LED array.Accordingly, reflection unit group 1405 includes multiple reflecting mirrors, is respectively placed in multiple luminescent devices in light source 1401 On the emitting light path of array.

As shown in figure 15, structural representations of the Figure 15 for the illuminating source group 1401 in the present embodiment.Illuminating source group Each LED in 1401 is arranged on to rotate on disk of the mirror 1403 as the center of circle, and is circumferentially arranged around mirror 1403 is rotated, and with It is in radially array distribution centered on rotating mirror 1403.In array distribution radially, it is to send same color in LED array The LED of light, in circumferentially arranging, yellow fluorescent powder LED1401a 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 the light-source system of the present 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 photomodulator 1613.

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

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 used to produce the second light；First control device is at least part of First luminescent device and the second luminescent device alternating are lighted by the period, 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 SHENGHUANG light and blue light.First control device is used for the open and close of the luminescent device for controlling different colours respectively, makes blue light LED11b and yellow light LED 11a alternatings are 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 in a certain period first control device while Light.As the green glow obtained after blue light and gold-tinted light splitting is modulated in DMD1611, then in yellow light LED 11a and indigo plant In this time period that light LED11b is lighted simultaneously, DMD1611 for being that cyan light is modulated to the closing light of blue light and green glow, For DMD1613 does not then affect.In this time period, due to the mixing of two kinds of light so that DMD1611 can modulate many one Plant color so that the colour gamut that the DMD1611 can be modulated is bigger.

As shown in Figure 17 A, color sequential charts of Figure 17 A for 1600 emergent light of light-source system.In a cycle T, in t1 In time, blue-ray LED is lighted, then 1 outgoing blue light of light-emitting device；Within the t2 times, yellow light LED is lighted, then 1 outgoing of light-emitting device Gold-tinted；Within the t3 times, while light blue-ray LED and yellow light LED, then the closing light of 1 outgoing of light-emitting device, two kinds of light, i.e., in vain Light.As shown in Figure 17 B and Figure 17 C, Figure 17 B and Figure 17 C is respectively modulation times of the DMD1209 and DMD1211 to different color light Figure.Accordingly, in the t1 times, DMD1611 is used to modulate blue light, and DMD1613 does not work；In the t2 times, DMD1611 is used to modulate Green glow, DMD1613 are used to modulate HONGGUANG；In the t3 times, DMD1611 is used to modulate green light, and DMD1613 is used to modulate HONGGUANG.

It can however not two kinds of color of light are made always while lighting, due to there was only two DMD in this light-source system, wherein One DMD is for modulating blue light and green glow respectively in the different periods.If yellow light LED 11a and blue-ray LED 11b are always maintained at Simultaneously light, 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 HONGGUANG and reflect green glow, blue light It is modulated in DMD1611 with the HONGGUANG obtained after gold-tinted light splitting, green glow is modulated in DMD1613.Then in gold-tinted In this time period that LED11a and blue-ray LED 11b is lighted simultaneously, the DMD1611 is purple for the closing light to blue light and HONGGUANG Coloured light is modulated, for DMD1613 does not then affect.

Above example is compared, the present embodiment can light the luminescent device of different colours simultaneously so that for the face of modulation 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 the light-source system of the present 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 photomodulator 1813.

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

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

For concrete example, as shown in figure 19, Figure 19 is the front view of the filtering apparatus in the light-source system shown in Figure 18 One embodiment.Filtering apparatus 1805 are 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 reflecting part blue light, and the second section 1805B is green for transmiting Light simultaneously reflects HONGGUANG, and the 3rd section 1805C is used to reflect green glow and transmit HONGGUANG.Second driving means 1806 are motor, are used for 1805 periodic rotary of filtering apparatus is driven, so that each section is sequentially located on the emitting light path of light-emitting device 1.

As shown in figure 20, Figure 20 is the light-source system and two DMD of two light sources of the light-source system shown in Figure 18 Modulation timing figure.In a modulation period T, within the front 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 HONGGUANG.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 HONGGUANG, and DMD1813 is used to modulate green glow.As such, it is possible to make Obtain the three primary colours light that two DMD distinguish modulation timings.

Embodiment 12

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

In the present embodiment, also include the 4th section 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 reflect gold-tinted；When the first section When 1805A and the 4th section 1805D is located on the emitting light path of sequential light, 1802 same time point of blue light source 1801 and yellow light sources 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, DMD1811 is sequentially modulated blue and green light, HONGGUANG and gold-tinted, DMD1813 It is sequentially modulated gold-tinted, HONGGUANG, green glow and blue light.In the present embodiment, as the color modulated adds gold-tinted so that light source system The brightness of 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 the light-source system of the present 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 photomodulator 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 driving means 2206, optical filter 2203 and 2204.

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

Light-emitting device also includes the 3rd luminescent device, produces the 4th light at least part of period in the second light of outgoing. In the present embodiment, the 3rd luminescent device is blue light source 2201B.Filtering apparatus 2205 in beam splitting system include Liang Ge areas Section, i.e., the second section on filtering apparatus 1805 and the 3rd section 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.On filtering apparatus 2205 including the first section 2205A (i.e. The second section on filtering apparatus 1805), for transmiting green glow and reflecting HONGGUANG；Also (filter including the second section 2205B The 3rd section on device 1805), for transmiting HONGGUANG 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 The light beam of the reflection of device 2205 transmits tailing edge the first optical channel outgoing for filtered 2204 to DMD2211；Filtered device 2205 The light beam of transmission transmits tailing edge the second optical channel outgoing for filtered 2203 to DMD2213.The light beam that blue light source 2201A sends To DMD2211 after (i.e. the second light) filtered 2204 reflection tailing edge the first optical channel outgoing.The light that blue light source 2201B sends Beam (i.e. the 4th light) reflects tailing edge the second optical channel outgoing for filtered 2203 to DMD2213.

In a modulation period T, within the front 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 2203A and the second section 2203B are at least When partial sector is sequentially located on the emitting light path of gold-tinted.DMD2211 is used for HONGGUANG of the modulation along the first optical channel successively outgoing And green glow, DMD2213 be used for modulation along the second optical channel successively outgoing green glow and HONGGUANG.

In the present embodiment, the light intensity of blue light modulated in two DMD can be controlled respectively, to better adapt to reality Need.Also, the time span of two blue light outgoing can also be inconsistent, one of blue light source can be in another blue light Light 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 to adjust the amount for being used for the green glow and HONGGUANG modulated, can correspondingly controls the first section 2203A The lighting time of gold-tinted when be located on the emitting light path of gold-tinted (i.e. the first light) with the second section 2203B respectively.Easy to understand 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, HONGGUANG 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 for changing light-source system is crossed dispensing two optical filters.For example will be each section on filtering apparatus 2205 same When be also configured to transmit the second light and the 4th light (blue light is 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 DMD2213 after transmiting.

Embodiment 14

Figure 24 is referred to, Figure 24 is the schematic diagram of the illuminating source of another embodiment of the light-source system of the present invention.This In embodiment, light-source system 2200 includes that light-emitting device, beam splitting system, the first spatial light modulator 2211 are adjusted with second space light Device processed 2213.

Light-emitting device is used for the first light of sequentially outgoing, 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.

Beam splitting system is used for the second light of selfluminous device in future and 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 the green color components for transmiting gold-tinted, i.e. the first 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 second range of wavelength light and the 6th scope ripple of the 3rd light of the first light Long light；Also transmissive portion blue light reflecting part blue light, i.e. the first sub-light and the second sub-light.Optical filter 2404 is used to transmit blue light And reflect gold-tinted.Both sides of the light that blue light source 2401 and gold-tinted 2402A are produced respectively from optical filter 2404 are incident, respectively Jing filters Mating plate 2404 is incident to the same side of optical filter 2405 from same optical channel after transmiting and reflecting.What yellow light sources 2402B was produced Light is incident from the opposite side of optical filter 2405.The light of filtered 2405 reflection is along the first optical channel outgoing to DMD2411, Jing filters The light of the transmission of mating plate 2405 is along the second optical channel outgoing to DMD2413.

First spatial light modulator (i.e. DMD2411) for beam splitting system along the sequentially outgoing of the first optical channel the first model Enclose wavelength light, the first sub-light and the 5th range of wavelength light to be modulated.Second space photomodulator (i.e. DMD2413) is for institute State beam splitting system to be adjusted 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 System.

As shown in figure 25, Figure 25 is the light-source system and two DMD of three light sources of the light-source system shown in Figure 24 Modulation timing figure.In a modulation period T, within the front 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 HONGGUANG.Within the ensuing t3 times, yellow light sources 2502A is lighted, and other two light source does not work, then DMD2411 is used to modulate HONGGUANG, and DMD2413 is used to modulate green glow.So, Just two DMD can be caused to 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 a modulation period, within the time, three light sources are same When light, then two DMD are used for the closing light for modulating blue light and gold-tinted, i.e. white light.As such, it is possible to improve the brightness of light-source system. 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.

Compare above example, in the present embodiment can by respectively control two yellow light sources brightness come respectively to two The brightness of HONGGUANG and green glow that DMD is received is adjusted, and reduces the second driving means driven to filtering apparatus Use；Simultaneously as light source lights the rotation synchronised being not required to filtering apparatus, light in the sequential of the different light sources of control It is more prone to, it is also convenient to the amount of different colours light modulation 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 long scope simultaneously reflects another wave-length coverage light of the 3rd color of light.

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 to the three beams sequential light come real by the filter wheel rotated with colour wheel simultaneously in beam splitting system It is existing.Above example is described to these devices, is only needed simply to the light-emitting device in different embodiments and light splitting System is combined, and will not be described here.

Embodiment 15

Figure 26 is referred to, Figure 26 is the schematic diagram of the illuminating source of another embodiment of the light-source system of the present invention.This In embodiment, light-source system 2600 includes that light-emitting device, beam splitting system, the first spatial light modulator 2211 are adjusted with second space light Device processed 2213.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 2404 and 2405.

Include in place of the present embodiment and the difference 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.

Compare in the light-source system shown in Figure 24 for the optical filter of light splitting is carried out to the light beam that two yellow light sources are produced 2405, the optical filter 2605 in the present embodiment for light splitting is carried out to the light beam that two yellow light sources are produced is set to transmit green glow With blue light and reflect HONGGUANG, and filtered 2605 transmission the second optical channel of tailing edge of blue light outgoing that blue light 2601A is produced is extremely DMD2613.Meanwhile, optical filter 2606 is located on the emitting light path of 2605 the reflected beams of optical filter, for transmiting blue light and reflecting Other light.Filtered 2606 reflection the first optical channel of tailing edge of HONGGUANG and green glow outgoing of the sequential of filtered 2605 reflection is extremely DMD2611, blue light source 2501B transmit tailing edge the first optical channel outgoing to DMD2611 from optical filter 2606.

As shown in figure 27, Figure 27 is the light-source system and two DMD of four light sources of the light-source system shown in Figure 26 Modulation timing figure.In a modulation period T, within the front t1 times, first control device controls two blue light sources and lights, 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 HONGGUANG.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 HONGGUANG, and DMD2613 is used to modulate Green glow.So, two DMD just can be caused to distinguish the three primary colours light of modulation timing.

It is easily understood that one of blue light source only can also be lighted 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 being controlled.

Preferably, in a modulation period T, it is also possible to add time period t 4, within the time, the same time point of four light sources Bright, then two DMD are used to modulate the closing light of blue light and gold-tinted, i.e. white light.As such, it is possible to improve the brightness of light source.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.

The light-source system shown in Figure 24 is compared, two blue light sources is adopted in the present embodiment, two DMD can be controlled respectively The light intensity and the length of modulation time of the blue light of middle modulation, to better adapt to be actually needed.

In the embodiment above, the optical filtering curve of each optical filter, the sequencing contro of each light source, the modulation timing of DMD The citing of the above is not limited to concrete light channel structure etc., 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 the light-source system of the present invention.This In embodiment, light-source system 2800 includes that light-emitting device, beam splitting system, the first spatial light modulator 2811 are adjusted with second space light Device processed 2813.Light-emitting device includes excitation source 2801 and 2802, wavelength conversion layer 2805, first driving means 2806 and first Control device (not shown).Beam splitting system includes optical filter 2814 and reflecting mirror 2812.

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

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

On wavelength conversion layer 2805 including the first subregion 2805A, the second subregion 2805B, the 3rd subregion 2805C and the 4th point Area 2805C, is respectively arranged with first, second, third and fourth functional material, be respectively used to absorb exciting light and produce 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 On the emitting light path of the exciting light that area and the 3rd subregion are produced positioned at two excitation sources respectively, the second subregion in another time period On the emitting light path of the exciting light for being produced positioned at two excitation sources with the 4th subregion respectively.

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 2806 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 arranged in 180 degree, and the second subregion 2805B and the 4th subregion 2805D is arranged 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 Hot spot line through the center of circle of disk so that the subregion arranged in 180 degree within the same time is sharp positioned at this two respectively On the emitting light path of the exciting light that luminous 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 reflecting mirror or Person is coated with reflectance coating to realize, this is known technology, be will not be described 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 2802 excitation wavelength conversion layer of luminous source 2801 and excitation source, 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. The light path of exciting light and Stimulated Light is distinguished by two reflectors 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 and Stimulated Light of exciting 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 adopted in the present embodiment, The loss of light beam can be reduced, beam utilization is improved.

Beam splitting system is for 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, reflecting mirror 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 2811 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 reflect blue light (i.e. the second light and the 4th light) along the first optical channel and the second optical channel Outgoing.DMD2811 is for being modulated to filtered 2814 light beam along the first optical channel outgoing.DMD2813 is for Jing Optical filter 2814 is modulated along the light beam of the second optical channel outgoing.

Preferably, 2807 dodging and collecting lens of dodging device are sequentially entered after reflected 2803 collection of cover of the first Stimulated Light After 2810 again outgoing to optical filter 2811.Likewise, sequentially entering dodging device after reflected 2804 collection of cover of the second Stimulated Light After 2808 dodging and collecting lens 2809 again outgoing to optical filter 2811.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 long conversion layer 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 and lights, then to receive optical filter 2811 simultaneously anti-for two DMD The blue light penetrated；When the first subregion 2805A and the 3rd subregion 2508C are located in the light path of two beam exciting lights respectively, in front t1 In, first control device control excitation source 2802 is lighted, and excitation source 2801 is closed, then DMD2813 receives green glow, DMD2811 receives HONGGUANG；Within the rear t2 times, first control device control excitation source 2801 is lighted, excitation source 2802 Close, then DMD2813 receives HONGGUANG, 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 are connect simultaneously Receive the closing light of HONGGUANG and green glow, i.e. gold-tinted.This causes the brightness of light-source system to improve.

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 When 2805C is located 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 Do not need the light modulated 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 the light-source system of the present invention.This In embodiment, light-source system 3100 includes that light-emitting device, beam splitting system, the first spatial light modulator 3111 are adjusted with second space light Device processed 3113.Light-emitting device includes excitation source 3101 and 3102, wavelength conversion layer 3105, first driving means 3106 and first Control device (not shown).Beam splitting system includes optical filter 3109, the reflecting mirror 3103 and 3104 with through hole.

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

Reflector is placed on the emitting light path of wavelength conversion layer 2805 in light-source system shown in Figure 28 so that luminous dress 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 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 the through hole on reflecting mirror 3103 and collimating lens 3108.Wavelength conversion layer The collimated lens 3108 of first Stimulated Light of 3105 outgoing are reflexed to optical filter 3109 by reflecting mirror 3103 after collimating.Second excites The exciting light that light source 3102 is produced sequentially passes through incident after through hole on reflecting mirror 3104, optical filter 3109 and collimating lens 3107 To wavelength conversion layer 3105.The collimated lens 3107 of second Stimulated Light of 3105 outgoing of wavelength conversion layer enter optical filter after collimating 3109。

The work schedule concrete example of the light-source system shown in Figure 31 is as follows.One in the rotation of wavelength conversion layer 3108 is all 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 DMD3113 receives the blue light of the transmission of optical filter 3109, and DMD3111 receives Jing successively The blue light that optical filter 3109 is transmitted and reflecting mirror 3104 reflects；When the first subregion 2805A and the 3rd subregion 2805C are located at two respectively When in the light path of beam exciting light, within the front t1 times, first control device control excitation source 3101 is lighted, excitation source 3102 Close, then DMD3113 receives HONGGUANG, and DMD3111 receives green glow；Within the rear t2 times, first control device control is excited Light source 3102 is lighted, and excitation source 3101 is closed, then DMD3113 receives green glow, and DMD3111 receives HONGGUANG.

For convenience of describing, the first light and the 3rd light are adopted in various embodiments above for gold-tinted, the second light and the 4th light It is example explanation for blue light.In practice, the four bundles light can also be other color of light, be not limited to described above 's.It is corresponding, the concrete 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, in the filtering apparatus of the wavelength conversion layer with different subregions and different sections, wavelength Zones of different 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( Driving means can be linear translation device or take other to be appropriately arranged with mode so that light beam in the wavelength conversion layer or The hot spot formed on person's filtering apparatus acts on the wavelength conversion layer or filter along straight line path or other predefined paths respectively Electro-optical device.

In various embodiments above, the light of two 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 the light-source system of the present invention.The light of two DMD outgoing Two viewing areas are projected respectively can also, to form two width images, as shown in figure 33.Figure 33 is the light-source system of the present invention Another embodiment structural representation.

In this specification, each embodiment is described by the way of progressive, 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 adopt 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 present 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 (13)

1. a kind of colour wheel, it is characterised in that including wavelength conversion layer, the first light-dividing device and light directing arrangement；

The wavelength conversion layer and the first light-dividing device are co-located on colour wheel, and are arranged concentrically；

The wavelength conversion layer is used to receive exciting light, produces sequential light；

The light directing arrangement is located at the either side of colour wheel, for guiding sequential light to reach the first light-dividing device；

First light-dividing device is used to reflect or transmit sequential light.

2. colour wheel according to claim 1, it is characterised in that the wavelength conversion layer and the first light-dividing device are to set with one heart Put and two mutually nested circle ring areas, two circle ring areas are respectively inner ring and outer rings；

The internal ring arranges wavelength conversion layer, and the outer shroud arranges the first light-dividing device.

3. colour wheel according to claim 2, it is characterised in that

The wavelength conversion layer includes the first subregion and the second subregion；First light-dividing device includes the first section and the secondth area Section；

The light directing arrangement guides the second subregion emergent light to for the first subregion emergent light is guided to the first section Two sections.

4. colour wheel according to claim 3, it is characterised in that

First subregion is equal in the angle shared by outer shroud in the angle shared by internal ring and the first section；

Second subregion is equal in the angle shared by outer shroud in the angle shared by internal ring and the second section.

5. colour wheel according to claim 1, it is characterised in that

The wavelength conversion layer is set to transmission-type；

The light directing arrangement is located at the side of wavelength conversion layer outgoing sequential light.

6. colour wheel according to claim 5, it is characterised in that

The light directing arrangement includes lens and two reflecting mirrors；

The lens are located in the light path of the sequential light of wavelength conversion layer outgoing, after sequential light is via lens collection, are reached successively Two reflecting mirrors；

The reflecting mirror is angled with colour wheel, for sequential light is guided to the first light-dividing device.

7. colour wheel according to claim 1, it is characterised in that

The wavelength conversion layer is set to reflective；

The light directing arrangement is located at the side that wavelength conversion layer receives exciting light.

8. colour wheel according to claim 7, it is characterised in that

The light directing arrangement includes the reflecting mirror with through hole；

The exciting light reaches wavelength conversion layer via the through hole of reflecting mirror, produces sequential light, what the wavelength conversion layer was produced At least partly the reflected mirror of emergent light reflexes to the first light-dividing device.

9. the colour wheel according to claim 7 or 8, it is characterised in that the colour wheel central area is provided with round platform；The ripple Long conversion layer is arranged at the side of the round platform；

First light-dividing device is arranged on the annulus of colour wheel.

10. the colour wheel according to any one of claim 1 to 8, it is characterised in that it is glimmering that the wavelength conversion layer is provided with yellow Light powder and blue colour fluorescent powder.

11. colour wheels according to any one of claim 1 to 6, it is characterised in that

The wavelength conversion layer is provided with yellow fluorescent powder and transmission area.

12. colour wheels according to claim 1 or 2 or 3 or 4 or 7 or 8, it is characterised in that the wavelength conversion layer is provided with Yellow fluorescent powder and echo area.

13. a kind of optical projection systems, it is characterised in that include the colour wheel as described in any one of claim 1 to 12 claim.