CN102566230B - Projection system, light source system and light source component - Google Patents
Projection system, light source system and light source component Download PDFInfo
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Abstract
The invention provides a projection system, a light source system and a light source component. The light source system comprises an exciting light source, a wavelength conversion device, a filter device, a driving device and a first optical component, wherein the wavelength conversion device comprises at least one wavelength conversion region. The filter device is fixed relative to the wavelength conversion device and comprises at least one first filter region. The driving device is used for driving the wavelength conversion device and the filter device, so that the wavelength conversion region and the first filter region synchronously move; and the wavelength conversion region is periodically arranged on a propagation path of exciting light, so that the exciting light wavelength is converted into excited light. The first optical component guides the exciting light into the first filter region. The first filter region is used for filtering the excited light to improve the color purity of the excited light. Through the mode, the filter device is fixed relative to the wavelength conversion device and is driven by the same driving device; and the light source system has the advantages of simple structure, easiness for implementation, high synchronism and the like.
Description
Technical field
The present invention relates to the light sources technical field of illumination and display, particularly relate to a kind of optical projection system, light-source system and light source assembly.
Background technology
At present, projector is widely used in the various application scenarios such as film broadcasting, meeting and publicity.As everyone knows, in the light source of projector, fluorescence colour wheel is often adopted to provide sequence of colored lights.Wherein, by not homochromy section of fluorescence colour wheel in turn and be periodically arranged on the travel path of exciting light, and then the fluorescent material utilizing exciting light to come on not homochromy section of fluorescence excitation colour wheel, to produce the fluorescence without color.But the spectral range produced due to fluorescent material is wider, makes the excitation of part fluorescence not enough, and then cause the colour gamut of light source large not.In this case, generally need to be filtered fluorescence by optical filter, to improve the excitation of fluorescence.But, because the spectral range of the fluorescence of different colours partly overlaps, same optical filter cannot be utilized to filter, therefore need the optical filter that the fluorescence for different colours provides different.In a kind of solution of prior art, one optical filter colour wheel is set at the entrance of optical tunnel, and carries out synchronous by the drive unit of circuit mode control optical filter colour wheel with the drive unit of fluorescence colour wheel.Said method also exists complex structure, is difficult to the shortcoming such as realization and synchronous effect difference.
Along with the competition of projector industry is day by day violent, manufacturer improves projector quality one after another, and then promotes the competitive power of self.The present inventor finds in the process of actively seeking for a long time to improve projector quality, and in prior art, the fluorescence colour wheel of projector light source and the synchronous architecture of optical filter colour wheel exist complex structure, are difficult to realize and the technical matters such as synchronous effect is poor.
Therefore, need to provide a kind of optical projection system, light-source system and light source assembly, with the above-mentioned technical matters existing for the synchronous architecture of the fluorescence colour wheel and optical filter colour wheel that solve projector light source in prior art.
Summary of the invention
The technical matters that the present invention mainly solves is to provide a kind of optical projection system, light-source system and light source assembly, to simplify the synchronous architecture of Wavelength converter and filtering apparatus, and improves synchronous effect.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of light-source system, comprise exciting light sources, Wavelength converter, filtering apparatus, drive unit and the first optical module.Exciting light sources is for generation of an exciting light.Wavelength converter comprises at least one wavelength-converting region.Filtering apparatus is relative with Wavelength converter fixing, and comprises at least one first filter area.Drive unit is for driving Wavelength converter and filtering apparatus, and to make wavelength-converting region and the first filter area be synchronized with the movement, and wavelength-converting region is periodically arranged on the travel path of exciting light, and then converts excitation wavelength to Stimulated Light.First optical module incides the first filter area for guiding Stimulated Light, and the first filter area filters Stimulated Light, to improve the excitation of Stimulated Light.
Wherein, Wavelength converter and filtering apparatus are co-axially fixed two ring texturees.
Wherein, drive unit is the wheelwork with a rotation axis, and two ring texturees are coaxially fixed on rotation axis.
Wherein, the center of wavelength-converting region two ring texturees relative to the first filter area is 180 degree and arranges, and the first optical module is arranged so that the center of hot spot two ring texturees relative to the hot spot that Stimulated Light is formed on filtering apparatus that exciting light is formed on Wavelength converter is 180 degree and arranges.
Wherein, the center of wavelength-converting region two ring texturees relative to the first filter area is that 0 degree of angle is arranged, and the first optical module is arranged so that the center of hot spot two ring texturees relative to the hot spot that Stimulated Light is formed on filtering apparatus that exciting light is formed on Wavelength converter is 0 degree and arranges.
Wherein, Wavelength converter and filtering apparatus axially spaced-apart are arranged, first optical module comprises one and is arranged at least one light collecting device between Wavelength converter and filtering apparatus district, light collecting device collects Stimulated Light, and makes the incident angle the inciding filtering apparatus energy be less than or equal within the scope of 60 degree of Stimulated Light account for more than 90% of gross energy.
Wherein, wavelength-converting region is arranged to reflect Stimulated Light, to make Stimulated Light contrary with the incident direction of exciting light relative wavelength transition zone from the exit direction of wavelength-converting region.
Wherein, transmission Stimulated Light is arranged in wavelength-converting region, to make Stimulated Light identical with the incident direction of exciting light relative wavelength transition zone from the exit direction of wavelength-converting region.
Wherein, the first optical module comprises at least one light collecting device, and light collecting device collects Stimulated Light, and makes the incident angle the inciding filtering apparatus energy be less than or equal within the scope of 60 degree of Stimulated Light account for more than 90% of gross energy.
Wherein, the first optical module comprises at least one reflection unit, and reflection unit reflects Stimulated Light, and to change the direction of propagation of Stimulated Light, reflection unit is plane reflection device or in semielliptical shape or in hemispherical and light reflection surface reflection unit inwardly.
Wherein, plane reflection device comprises dichroic mirror or catoptron.
Wherein, in semielliptical shape or in hemispherical and light reflection surface reflection unit is inwardly provided with light inlet, exciting light incides Wavelength converter through light inlet.
Wherein, Wavelength converter comprises one first photic zone, and the first photic zone drives periodical to be arranged on the travel path of exciting light at drive unit, the first photic zone transmission exciting light.
Wherein, light-source system also comprises the second optical module, and the exciting light through the first photic zone transmission is carried out light path merging with the Stimulated Light of filtering through the first filter area by the second optical module.
Wherein, filtering apparatus comprises the second photic zone or the second filter area, and the exciting light through the first photic zone transmission is directed into the second photic zone or the second filter area, to carry out transmission or filtration along the light path identical with Stimulated Light by the first optical module.
Wherein, light-source system comprises an illumination light light source further, illumination light light source produces an illumination light, Wavelength converter also comprises one first photic zone, first photic zone drives periodical to be arranged on the travel path of illumination light at drive unit, first photic zone transillumination light, filtering apparatus comprises one second photic zone or the second filter area further, illuminated light guide through the first photic zone transmission is guided to the second photic zone or the second filter area, to carry out transmission or filtration along the light path identical with Stimulated Light by the first optical module.
Wherein, light-source system comprises an illumination light light source and the second optical module further, and illumination light light source produces an illumination light, and illumination light and the Stimulated Light of filtering through the first filter area are carried out light path merging by the second optical module.
Wherein, Wavelength converter is a tubular structure, and filtering apparatus is a ring texture, and coaxially fixes with tubular structure, with coaxial under the driving of drive unit and synchronous axial system.
Wherein, wavelength-converting region is arranged at the lateral wall of tubular structure, and reflection Stimulated Light, the first filter area to be arranged in ring texture and to be positioned at the outside of tubular structure, to receive Stimulated Light.
Wherein, Wavelength converter and filtering apparatus are coaxial two fixing and mutually nested tubular structures, with coaxial under the driving of drive unit and synchronous axial system, wavelength-converting region and the first filter area are arranged on the sidewall of two tubular structures respectively, and Stimulated Light is transmitted to the first filter area through wavelength-converting region.
Wherein, Wavelength converter and filtering apparatus are two end to end banded structures, and wavelength-converting region and the first filter area are arranged side by side on two banded structures, and drive unit drives two banded structures to carry out reciprocal linear translation.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of light source assembly, comprise Wavelength converter and filtering apparatus.Wavelength converter comprises at least one wavelength-converting region.Filtering apparatus is relative with Wavelength converter fixing, and comprises at least one filter area, is synchronized with the movement under the driving of drive unit to make wavelength-converting region and filter area.
Wherein, Wavelength converter and filtering apparatus are co-axially fixed two ring texturees.
Wherein, Wavelength converter is a tubular structure, and filtering apparatus is a ring texture, and coaxially fixes with tubular structure.
Wherein, wavelength-converting region is arranged at the lateral wall of tubular structure, and filter area is arranged in ring texture, and is positioned at the outside of tubular structure.
Wherein, Wavelength converter and filtering apparatus are coaxial two fixing and mutually nested tubular structures, and wavelength-converting region and filter area are arranged on the sidewall of two tubular structures respectively.
Wherein, Wavelength converter and filtering apparatus are two end to end banded structures, and wavelength-converting region and filter area are arranged side by side on two banded structures.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of optical projection system adopting above-mentioned light-source system.
The invention has the beneficial effects as follows: the situation being different from prior art, filtering apparatus in optical projection system of the present invention, light-source system and light source assembly is relative with Wavelength converter fixing, and driven by same drive unit, have structure simple, be easy to realize and synchronism advantages of higher.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first embodiment of light-source system of the present invention;
Fig. 2 is the front view of Wavelength converter in the light-source system shown in Fig. 1 and filtering apparatus;
Fig. 3 is the structural representation of the second embodiment of light-source system of the present invention;
Fig. 4 is the front view of Wavelength converter in the light-source system shown in Fig. 3 and filtering apparatus;
Fig. 5 is the structural representation of the 3rd embodiment of light-source system of the present invention;
Fig. 6 is the front view of Wavelength converter in the light-source system shown in Fig. 5 and filtering apparatus;
Fig. 7 is the structural representation of the 4th embodiment of light-source system of the present invention;
Fig. 8 is the structural representation of the 5th embodiment of light-source system of the present invention;
Fig. 9 is the structural representation of the 6th embodiment of light-source system of the present invention;
Figure 10 is the structural representation of the 7th embodiment of light-source system of the present invention;
Figure 11 is the structural representation of the 8th embodiment of light-source system of the present invention;
Figure 12 is the structural representation of the 9th embodiment of light-source system of the present invention;
Figure 13 is the structural representation of the tenth embodiment of light-source system of the present invention;
Figure 14 is the structural representation of the 11 embodiment of light-source system of the present invention;
Figure 15 is the structural representation of the 12 embodiment of light-source system of the present invention;
Figure 16 is the front view of Wavelength converter in the light-source system shown in Figure 15 and filtering apparatus.
Embodiment
Refer to Fig. 1 and Fig. 2, Fig. 1 is the structural representation of the first embodiment of light-source system of the present invention, and Fig. 2 is the front view of Wavelength converter in the light-source system shown in Fig. 1 and filtering apparatus.As shown in Figure 1, the light-source system 100 of the present embodiment mainly comprises exciting light sources 101, dichroic mirror (dichroic mirror) 102 and catoptron 104, lens 103 and 105, Wavelength converter 106, filtering apparatus 107, drive unit 108 and dodging device 109.
Exciting light sources 101 is for generation of an exciting light.In the present embodiment, exciting light sources 101 is a ultraviolet or near ultraviolet laser instrument or ultraviolet or near ultraviolet light emitting diode, to produce ultraviolet or near ultraviolet excitated light.
As shown in Figure 2, Wavelength converter 106 is a ring texture, comprises at least one wavelength-converting region.In the present embodiment, Wavelength converter 106 comprises the ruddiness transition zone of the circumferential subsection setup around its ring texture, green glow transition zone, blue light transition zone and gold-tinted transition zone.Above-mentioned wavelength-converting region is respectively arranged with different material for transformation of wave length (such as fluorescent material or nano material).The ultraviolet incided on it or near ultraviolet excitated light wavelength conversion can be become the Stimulated Light of respective color by above-mentioned material for transformation of wave length.Specifically, ruddiness transition zone converts the ultraviolet incided on it or near ultraviolet excitated light to ruddiness Stimulated Light, green glow transition zone converts the ultraviolet incided on it or near ultraviolet excitated light to green glow Stimulated Light, blue light transition zone converts the ultraviolet incided on it or near ultraviolet excitated light to blue light Stimulated Light, and gold-tinted transition zone then converts the ultraviolet incided on it or near ultraviolet excitated light to gold-tinted Stimulated Light.In the present embodiment, below above-mentioned material for transformation of wave length, reflective is set further, and then reflect the Stimulated Light that above-mentioned material for transformation of wave length changes, make Stimulated Light contrary from the incident direction of the exit direction of above-mentioned wavelength-converting region above-mentioned wavelength-converting region relative to exciting light.
As shown in Figure 2, filtering apparatus 107 is a ring texture, and itself and Wavelength converter 106 are coaxially fixed, and outside the ring being specifically arranged at Wavelength converter 106.In other embodiments, filtering apparatus 107 also can be arranged at inside the ring of Wavelength converter 106.Filtering apparatus 107 comprises at least one filter area.In the present embodiment, filtering apparatus 107 comprises the ruddiness filter area of the circumferential subsection setup around its ring texture, green glow filter area, blue light filter area and gold-tinted filter area.Above-mentioned filter area is corresponding with the wavelength-converting region of each color on Wavelength converter 106 to be arranged.In the present embodiment, the wavelength-converting region of same color becomes 180 degree of settings with filter area relative wavelength conversion equipment 106 with the center of the ring texture of filtering apparatus 107.Above-mentioned filter area has different filter ranges, and then filters to the Stimulated Light of respective color, to improve the excitation of Stimulated Light.
Certainly, the wavelength-converting region of same color also can become other angles to arrange with filter area relative wavelength conversion equipment 106 with the center of the ring texture of filtering apparatus 107.
As shown in Figure 1, drive unit 108 such as, for having the wheelwork of a rotation axis 1081, rotation motor.Wavelength converter 106 and filtering apparatus 107 are coaxially fixed on rotation axis 1081, and under the driving of rotation axis 1081 synchronous axial system.
In the course of work of the light-source system 100 shown in Fig. 1, the ultraviolet that exciting light sources 101 produces or near ultraviolet excitated light are through dichroic mirror 102 transmission, incide on Wavelength converter 106 after lens 103 carry out optically focused, and on Wavelength converter 106, form hot spot 101A as shown in Figure 2.Wavelength converter 106 and filtering apparatus 107 synchronous axial system under the driving of drive unit 108, and then make each filter area synchronous axial system on each wavelength-converting region on Wavelength converter 106 and filtering apparatus 107.In the rotation process of Wavelength converter 106 and filtering apparatus 107, each wavelength-converting region on Wavelength converter 106 successively and be periodically arranged on the travel path of ultraviolet that exciting light sources 101 produces or near ultraviolet excitated light, makes ultraviolet or near ultraviolet excitated light under the effect of each wavelength-converting region, convert the Stimulated Light of different colours successively to.The Stimulated Light of different colours is reflected by above-mentioned each wavelength-converting region further, and incides filtering apparatus 107 after the first optical module guiding that lens 103 and 105 and dichroic mirror 102 and catoptron 104 form, and forms hot spot 101B as shown in Figure 2.
In the first optical module, lens 103 and 105 are respectively used to collect and optically focused Stimulated Light, to reduce the angle of divergence of Stimulated Light.Dichroic mirror 102 and catoptron 104 for reflecting Stimulated Light, to change the direction of propagation of Stimulated Light.In the present embodiment, dichroic mirror 102 and catoptron 104 are mutually in 90 degree of settings, and the incident direction of Stimulated Light is 45 degree of settings relatively.In the present embodiment, under the reflex of dichroic mirror 102 and catoptron 104, the direction of propagation of Stimulated Light is by translation preset distance and anti-turnback, and the center of the ring texture of hot spot 101A and hot spot 101B relative wavelength conversion equipment 106 and filtering apparatus 107 is 180 degree arranges.
Now, because Wavelength converter 106 is relative with filtering apparatus 107 fixing, and the wavelength-converting region of Wavelength converter 106 and the same color on filtering apparatus 107 and the same relative wavelength conversion equipment 106 of filter area are 180 degree with the center of the ring texture of filtering apparatus 107 and arrange and synchronous axial system, it is hereby ensured that the Stimulated Light of the different colours produced by each wavelength-converting region of Wavelength converter 106 incides on the filter area of the same color on filtering apparatus 107 after dichroic mirror 102 and catoptron 104 act on, and then carry out optical filtering to improve excitation by the filter area of same color.Stimulated Light after the filter area of filtering apparatus 107 filters incides dodging device 109, further to carry out dodging.
In the light-source system 100 of the present embodiment, Wavelength converter 106 is relative with filtering apparatus 107 to be fixed and is synchronously driven by same drive unit, utilize the first optical module to carry out synchronous by the wavelength-converting region of same color with filter area simultaneously, have structure simple, be easy to realize and synchronism advantages of higher.In addition, each elements relative exciting light sources of the first optical module keeps static, and avoid and rotate with Wavelength converter 106 and filtering apparatus 107, therefore its optical stability is higher.
Further, because the Stimulated Light produced by wavelength convert is generally approximate Lambertian distribution, if this Stimulated Light is directly incident on filter area, then its incident angle all exists from 0 degree to 90 degree.But, penetrance drift along with the increase of incident angle of filter area, therefore in first optical module of the present embodiment, beam condensing unit is set further (such as, lens 105) optically focused is carried out to Stimulated Light, make Stimulated Light incide the incident angle of filter area less, further increase filter effect.In a preferred embodiment, by adjusting the first optical module, the incident angle inciding filtering apparatus 107 energy be less than or equal within the scope of 60 degree of Stimulated Light can be made to account for more than 90% of gross energy.In the present embodiment, dichroic mirror 102 and catoptron 104 can be replaced by other forms of plane reflection device, and lens 103 and 105 then can be replaced by other forms of optical devices.Such as, lens 105 can be the various forms of beam condensing units such as solid or hollow tapered light rod, lens or lens combination, hollow or solid compound condenser or curved reflector.
In addition, in the present embodiment, wavelength-converting region on Wavelength converter 106 can be the one or more combination in any in ruddiness transition zone, green glow transition zone, blue light transition zone and gold-tinted transition zone, and the light source selecting other suitable is as exciting light sources.Or those skilled in the art can arrange wavelength-converting region and the exciting light sources of other colors as required.Now, the color of the Stimulated Light that the filter area on filtering apparatus 107 then produces according to the wavelength-converting region on Wavelength converter 106 carries out corresponding configuration, and the present invention is not restricted this.
Refer to Fig. 3 and Fig. 4, Fig. 3 is the structural representation of the second embodiment of light-source system of the present invention, and Fig. 4 is the front view of Wavelength converter in the light-source system shown in Fig. 3 and filtering apparatus.Light-source system 200 and light-source system 100 difference shown in Fig. 1 and Fig. 2 of the present embodiment are, exciting light sources 201 is a blue laser or blue light-emitting diode, to produce blue-light excited light.As shown in Figure 4, in the present embodiment, Wavelength converter 206, except comprising ruddiness transition zone, gold-tinted transition zone and green glow transition zone, comprises a blue light photic zone further.Filtering apparatus 207 comprises ruddiness filter area, gold-tinted filter area and green glow filter area.In the present embodiment, optical requirement is not done to the region corresponding with the blue light photic zone of Wavelength converter 206 of filtering apparatus 207, but the balance in order to rotate, counterweigh district can be arranged to, and then keep same or analogous weight with other filter areas.In the present embodiment, under the driving of drive unit 208, Wavelength converter 206 and filtering apparatus 207 synchronous axial system, make each wavelength-converting region on Wavelength converter 206 and blue light photic zone successively and be periodically arranged on the travel path of the blue-light excited light that exciting light sources 201 produces.Wherein, the blue-light excited light incided on it is converted to the Stimulated Light of corresponding color and reflects by each wavelength-converting region, and blue light photic zone is then transmitted into the blue-light excited light be mapped on it.Blue light photic zone can be arranged suitable scattering mechanism, to destroy the collimation of blue-light excited light.Stimulated Light after Wavelength converter 206 reflects incides the filter area of the respective color on filtering apparatus 207 after the first optical module guiding that lens 203 and 205 and dichroic mirror 202 and catoptron 204 form, and carries out optical filtering to improve excitation by this filter area.Through Wavelength converter 206 transmission blue-light excited light lens 210 and 213, catoptron 211 and dichroic mirror 212 form under the guiding of the second optical module with filter through filtering apparatus 207 after Stimulated Light carry out light path merging, and co-incident is to dodging device 209, to carry out dodging.
In second optical module, lens 210 and 213 are respectively used to collect and optically focused the blue-light excited light through Wavelength converter 206 transmission, catoptron 211 and dichroic mirror 212 then for reflecting the blue-light excited light through Wavelength converter 206 transmission, to change its travel path.In the present embodiment, catoptron 211 and dichroic mirror 212 are mutually parallel to be arranged, and the incident direction of relatively blue-light excited light is 45 degree of settings, to make the direction of propagation of blue-light excited light by translation preset distance and direction remains unchanged.
In the present embodiment, the blue-light excited light produced by exciting light sources 201 by transmission mode is directly as blue laser output.In the present embodiment, catoptron 211 and dichroic mirror 212 can be replaced by other forms of plane reflection device equally, and lens 210 and 213 then can be replaced by other forms of optical devices.In addition, said structure is equally applicable in the light-source system of the exciting light sources adopting other colors.
Refer to Fig. 5 and Fig. 6, Fig. 5 is the structural representation of the 3rd embodiment of light-source system of the present invention, and Fig. 6 is the front view of Wavelength converter in the light-source system shown in Fig. 5 and filtering apparatus.Light-source system 300 and light-source system 200 difference shown in Fig. 3 and Fig. 4 of the present embodiment are, light-source system 300 comprises a red illumination light source 315 further (such as on the basis of exciting light sources 301, red laser or red light-emitting diode), to produce a red illumination light.Red illumination light source 315 and exciting light sources 301 are arranged at the relative both sides of Wavelength converter 306 and filtering apparatus 307 respectively.The red illumination light that red illumination light source 315 produces incides Wavelength converter 306 through lens 314, dichroic mirror 311 and lens 310, and its incident direction is contrary with the incident direction of the exciting light that exciting light sources 301 produces.
In the present embodiment, Wavelength converter 306 comprises ruddiness photic zone, gold-tinted transition zone, green glow transition zone and blue light photic zone.Filtering apparatus 307 comprises ruddiness photic zone, gold-tinted filter area, green glow filter area and counterweigh district.In the present embodiment, under the driving of drive unit 308, Wavelength converter 306 and filtering apparatus 307 synchronous axial system, make each wavelength-converting region on Wavelength converter 306, ruddiness photic zone and blue light photic zone successively and be periodically arranged on the travel path of blue-light excited light that exciting light sources 301 produces and the red illumination light that red illumination light source 315 produces.Wherein, the blue-light excited light incided on it is converted to the Stimulated Light of corresponding color and reflects by each wavelength-converting region, and blue light photic zone is transmitted into the blue-light excited light be mapped on it, and ruddiness photic zone is then transmitted into the red illumination light be mapped on it.Blue light photic zone and ruddiness photic zone can arrange suitable scattering mechanism, to destroy the collimation of blue-light excited light and red illumination light.Stimulated Light after Wavelength converter 306 reflects incides the filter area of the respective color on filtering apparatus 307 after the first optical module guiding that lens 303 and 305 and dichroic mirror 302 and catoptron 304 form, and carries out optical filtering to improve excitation by this filter area.Red illumination light through Wavelength converter 306 transmission is guided along the ruddiness photic zone on the incident filtering apparatus 307 of the light path identical with Stimulated Light with the first optical module that catoptron 304 forms with 305 and dichroic mirror 302 through lens 303, and through the transmission of ruddiness photic zone.Under the guiding of the second optical module formed at lens 310 and 313 and dichroic mirror 311 and 312 through the blue-light excited light of Wavelength converter 306 transmission with filter through filtering apparatus 307 after Stimulated Light and red illumination light after filtering apparatus 307 transmission carry out light path merging, and co-incident is to dodging device 309, to carry out dodging.
In a preferred embodiment, only receive a kind of light of color in a certain particular moment in order to ensure dodging device 309, the turned position of Wavelength converter 306 is detected, and produces synchronizing signal.Exciting light sources 301 and red illumination light source 315 adopt the work of timesharing opening ways according to this synchronizing signal.Specifically, just open when red illumination light source 315 is only on the travel path that ruddiness photic zone is arranged at the red illumination light that red illumination light source 315 produces, and close when gold-tinted transition zone, green glow transition zone and blue light photic zone are arranged on the travel path of red illumination light.Just open when exciting light sources 301 is on the travel path that gold-tinted transition zone, green glow transition zone and blue light photic zone are arranged at the blue-light excited light that exciting light sources 301 produces, and close time on the travel path that ruddiness photic zone is arranged at blue-light excited light.In addition, in another preferred embodiment, also transmit red light illumination light can be set in ruddiness photic zone and the light splitting optical filter of reflect blue exciting light, the catoptron of reflect red illumination light is set in the side of the close red illumination light source 315 of gold-tinted transition zone and green glow transition zone, and transmit blue exciting light is set in blue light photic zone and the light splitting optical filter of reflect red illumination light.
In the present embodiment, the ruddiness that light-source system 300 exports directly is produced by red illumination light source 315, and then the problem that the conversion efficiency avoiding ruddiness transition material is low.Certainly, when needs improve excitation further, above-mentioned ruddiness photic zone can be replaced to ruddiness filter area.In the present embodiment, those skilled in the art can expect utilizing other lighting sources to produce the illumination light of other colors completely.
Refer to Fig. 7, Fig. 7 is the structural representation of the 4th embodiment of light-source system of the present invention.Light-source system 400 and light-source system 300 difference shown in Fig. 5 and Fig. 6 of the present embodiment are, the exciting light sources 401 of the present embodiment adopts ultraviolet or blue-light excited light source.Meanwhile, the Wavelength converter 406 of the present embodiment arranges gold-tinted transition zone, green glow transition zone and ruddiness photic zone.Therefore, exciting light sources 401 is only for exciting gold-tinted transition zone and green glow transition zone to produce gold-tinted Stimulated Light and green glow Stimulated Light.The light-source system 400 of the present embodiment arranges a blue illumination light source 416 further on the basis of exciting light sources 401 and red illumination light source 415.The second optical module that the blue illumination light that this blue illumination light source 416 produces forms via lens 417 and 418 and dichroic mirror 419 is with the Stimulated Light after filtering apparatus 407 filters and carry out light path merging through filtering apparatus 407 transmission or the red illumination light after filtering, and co-incident is to dodging device 409, to carry out dodging.In the present embodiment, exciting light sources 401, red illumination light source 415, blue illumination light source 416 can adopt the timesharing opening ways work similar with the 3rd embodiment equally.
In the present embodiment, the ruddiness that light-source system 300 exports directly is produced by red illumination light source 415, the blue light that light-source system 300 exports directly is produced by blue illumination light source 416, and then the problem that the conversion efficiency avoiding material for transformation of wave length is low, is more suitable for display field simultaneously.
Refer to Fig. 8, Fig. 8 is the structural representation of the 5th embodiment of light-source system of the present invention.Light-source system 500 and light-source system 100 difference shown in Fig. 1 and Fig. 2 of the present embodiment are, Wavelength converter 506 is this Stimulated Light of transmission after the excitation wavelength produced by exciting light sources 501 converts Stimulated Light to.Stimulated Light through Wavelength converter 506 transmission incides the filter area of the same color of filtering apparatus 507 after the first optical module guiding that lens 503 and 505 and catoptron 502 and 504 form, and incides dodging device 509 after this filter area filters.
In addition, exciting light sources 501 also can be blue light source, can also arrange a photic zone further at Wavelength converter 506, and this photic zone is periodically arranged on the travel path of the exciting light that exciting light sources 501 produces, and this exciting light of transmission.The first optical module formed through lens 503 and 505 and catoptron 502 and 504 through the exciting light of this photic zone transmission directs into another photic zone on filtering apparatus 507 or filter area along the light path identical with Stimulated Light, carries out transmission or filtration.
Refer to Fig. 9, Fig. 9 is the structural representation of the 6th embodiment of light-source system of the present invention.Light-source system 600 and light-source system 500 difference shown in Fig. 8 of the present embodiment are, the light-source system 600 of the present embodiment arranges red illumination light source 615 further on the basis of exciting light sources 601, to produce a red illumination light.Red illumination light source 615 and exciting light sources 601 are arranged at the homonymy of Wavelength converter 606 and filtering apparatus 607.The red illumination light that red illumination light source 615 produces to reflect and the exciting light produced with exciting light sources 601 after lens 611 optically focused incides Wavelength converter 606 along equidirectional through dichroic mirror 613.Wherein, the wavelength-converting region wavelength convert of exciting light on Wavelength converter 606 that exciting light sources 601 produces becomes Stimulated Light, and through Wavelength converter 606 transmission.The ruddiness photic zone direct transmission of red illumination light then on Wavelength converter 606 that red illumination light source 615 produces.Incide filter area and the ruddiness photic zone of filtering apparatus 607 respectively along identical light path under the guiding of the first optical module that the Stimulated Light after Wavelength converter 606 transmission and red illumination light form with 604 and lens 603 and 605 at catoptron 602.Through filter area filter Stimulated Light and incide dodging device 609 further through the red illumination light of ruddiness photic zone transmission.In addition, above-mentioned ruddiness photic zone also can be replaced by ruddiness filter area.In addition, the exciting light sources 601 in the present embodiment is same with red illumination light source 615 adopts the timesharing opening ways similar with the 3rd embodiment to carry out work.
Refer to Figure 10, Figure 10 is the structural representation of the 7th embodiment of light-source system of the present invention.Light-source system 700 and light-source system 600 difference shown in Fig. 9 of the present embodiment are, the light-source system 700 of the present embodiment arranges a blue illumination light source 716 further on the basis of laser light light source 701 and red illumination light source 715.The second optical module that the blue illumination light that this blue illumination light source 716 produces forms through lens 717 and dichroic mirror 718 and the Stimulated Light after filtering apparatus 707 filters and to filter through filtering apparatus 707 or red illumination light after transmission carries out light path merging, and co-incident is to dodging device 709, to carry out dodging.Exciting light sources 701 in the present embodiment, red illumination light source 715 and blue illumination light source 716 can adopt the timesharing opening ways similar with the 3rd embodiment to carry out work equally.
Refer to Figure 11, Figure 11 is the structural representation of the 8th embodiment of light-source system of the present invention.Light-source system 800 and light-source system 100 difference shown in Fig. 1 and Fig. 2 of the present embodiment are, the light inlet through reflection unit 802 after the exciting light that the exciting light sources 801 of the present embodiment produces carries out optically focused by fly's-eye lens 803 and 804 and condenser lens 805 incides Wavelength converter 806.The Stimulated Light reflected through Wavelength converter 806 is through in semielliptical shape or in hemispherical and light reflection surface reflection unit 802 inwardly reflexes to filtering apparatus 807.The Stimulated Light of filtering through filtering apparatus 807 incides tapered light rod 809 further.Wherein, when reflection unit 802 is in semielliptical shape, reflection unit 802 Stimulated Light of a near focal point of self-reflection device 802 in the future can reflex to another near focal point of reflection unit 802.When reflection unit 802 is in time hemispherical, arrange two symmetric points about this centre of sphere symmetry in the position closing on the centre of sphere, reflection unit 802 roughly also can reflex to another symmetric points the Stimulated Light of wherein symmetric points.In addition, in other embodiments, reflection unit 802 can not arrange light inlet, and now exciting light sources 801 and reflection unit 802 are arranged at the both sides of Wavelength converter 806 respectively.The Stimulated Light that the exciting light that exciting light sources 801 produces produces after can being irradiated to Wavelength converter 806 is transmitted on reflection unit 802 further.
It should be noted that, under the reflex of reflection unit 802, the hot spot that the exciting light that laser light light source 801 produces produces on Wavelength converter 806 and the hot spot that Stimulated Light produces on filtering apparatus 807 are 0 degree relative to the center of the ring texture of Wavelength converter 806 and filtering apparatus 807 and arrange, and therefore on Wavelength converter 806 and filtering apparatus 807, the center of the ring texture that the wavelength-converting region of same color and filter area also need relative to Wavelength converter 806 and filtering apparatus 807 is 0 degree of setting.
Certainly, in other embodiments, by suitable optical facilities, the center that can adjust the ring texture of hot spot that exciting light produces on Wavelength converter 806 and the hot spot relative wavelength conversion equipment 806 that Stimulated Light produces on filtering apparatus 807 and filtering apparatus 807 is arbitrarily angled setting, therefore makes the wavelength-converting region of the same color on Wavelength converter 806 and filtering apparatus 807 and filter area be arbitrarily angled setting relative to the center of the ring texture of Wavelength converter 806 and filtering apparatus 807.
Refer to Figure 12, Figure 12 is the structural representation of the 9th embodiment of light-source system of the present invention.Light-source system 900 and light-source system 800 difference shown in Figure 11 of the present embodiment are, Wavelength converter 906 and filtering apparatus 907 are coaxially fixed by support 908, and interval is arranged vertically.One tapered light rod 909 is set between Wavelength converter 906 and filtering apparatus 907.Light inlet through reflection unit 902 after the exciting light that exciting light sources 901 produces carries out optically focused by fly's-eye lens 903 and 904 and condenser lens 905 incides Wavelength converter 906.The Stimulated Light reflected through Wavelength converter 906 incides reflection unit 902 and reflects.First the Stimulated Light reflected through reflection unit 902 enters lamp guide 909.Lamp guide 909 pairs of Stimulated Light are collected, to reduce the angle of divergence of Stimulated Light.Stimulated Light after lamp guide 909 leaded light incides on filtering apparatus 907, makes the incident angle of Stimulated Light on filtering apparatus 907 less, improves filter effect.In the present embodiment, the optical devices that lamp guide 909 also can realize above-mentioned functions by other replace.In addition, in the present embodiment, Wavelength converter 906 is if transmission-type, and reflection unit 902 can omit, and now Stimulated Light is directly transmitted to lamp guide 909 through Wavelength converter 906.
As described above, in the embodiment shown in Figure 11 and Figure 12, on the basis of exciting light sources 801 and 901, lighting source can be increased further, such as red illumination light source or blue illumination light source.
Refer to Figure 13, Figure 13 is the structural representation of the tenth embodiment of light-source system of the present invention.Light-source system 1000 and light-source system 100 difference shown in Fig. 1 and Fig. 2 of the present embodiment are, the Wavelength converter 1006 of the present embodiment is in tubular structure, and wavelength-converting region is arranged on the lateral wall of this tubular structure.The filtering apparatus 1007 of the present embodiment is ring texture and this tubular structure is coaxially fixed.Wavelength converter 1006 and filtering apparatus 1007 are coaxially fixed on the rotation axis of drive unit 1008 further, and under the driving of drive unit 1008 coaxial and synchronous axial system.
In the course of work of the light-source system 1000 of the present embodiment, the exciting light that exciting light sources 1001 produces through dichroic mirror 1002 transmission, and incides on the lateral wall of Wavelength converter 1006 after lens 1003 carry out optically focused.Wavelength-converting region on the lateral wall of Wavelength converter 1006 converts exciting light to Stimulated Light, and reflects this Stimulated Light.The Stimulated Light reflected through Wavelength converter 1006 incides filtering apparatus 1007 after the first optical module guiding that lens 1003 and 1004 and dichroic mirror 1002 form.Filter area on filtering apparatus 1007 is arranged at the outside of the tubular structure of Wavelength converter 1006, and then can receive Stimulated Light and carry out optical filtering to improve excitation to Stimulated Light.Stimulated Light after the filter area of filtering apparatus 1007 filters incides dodging device 1009, further to carry out dodging.In other embodiments, Stimulated Light also can be transmitted on filtering apparatus 1007 by Wavelength converter 1006.
Refer to Figure 14, Figure 14 is the structural representation of the 11 embodiment of light-source system of the present invention.Light-source system 1100 and light-source system 100 difference shown in Fig. 1 and Fig. 2 of the present embodiment are, Wavelength converter 1106 and the filtering apparatus 1107 of the present embodiment are coaxial two fixing and mutually nested tubular structures, and wavelength-converting region and the first filter area are arranged on the sidewall of these two tubular structures respectively.Wherein, filtering apparatus 1107 is positioned at the outside of Wavelength converter 1106.Wavelength converter 1106 and filtering apparatus 1107 are coaxially fixed on the rotation axis of drive unit 1108 further, and under the driving of drive unit 1108 coaxial and synchronous axial system.
In the course of work of the light-source system 1100 of the present embodiment, the exciting light that exciting light sources 1101 produces reflects through catoptron 1102, and incides on Wavelength converter 1106 after lens 1103 carry out optically focused.Wavelength-converting region on Wavelength converter 1106 converts exciting light to Stimulated Light, and this Stimulated Light of transmission.Stimulated Light through Wavelength converter 1106 transmission incides filtering apparatus 1107 after the first optical module guiding that lens 1104 form.Filter area on filtering apparatus 1107 carries out optical filtering to improve excitation to Stimulated Light.Stimulated Light after the filter area of filtering apparatus 1107 filters incides dodging device 1109, further to carry out dodging.
Refer to Figure 15 and Figure 16, Figure 16 is the structural representation of the 12 embodiment of light-source system of the present invention, and Figure 16 is the front view of Wavelength converter in the light-source system shown in Figure 15 and filtering apparatus.Light-source system 1200 and light-source system 200 difference shown in Fig. 3 and Fig. 4 of the present embodiment are, the Wavelength converter 1206 of the present embodiment and filtering apparatus 1207 are end to end two banded structures, and wavelength-converting region and the first filter area are arranged side by side on these two banded structures.In the present embodiment, Wavelength converter 1206 comprises side by side and the ruddiness transition zone sequentially arranged from top to bottom, green glow transition zone, blue light photic zone and gold-tinted transition zone further, and filtering apparatus 1207 comprises side by side and the ruddiness filter area sequentially arranged from top to bottom, green glow filter area, vacant district and gold-tinted filter area.
At Wavelength converter 1206 and filtering apparatus 1207 at suitable drive unit (such as, linear motor) driving under carry out reciprocal linear translation, to make the ruddiness transition zone on Wavelength converter 1206, green glow transition zone, blue light photic zone and gold-tinted transition zone be periodically arranged on the travel path of the blue-light excited light that exciting light sources 1201 produces.Wherein, the blue-light excited light incided on it is converted to the Stimulated Light of corresponding color and reflects by each wavelength-converting region, and blue light photic zone is then transmitted into the blue-light excited light be mapped on it.Blue light photic zone can be arranged suitable scattering mechanism, to destroy the collimation of blue-light excited light.Stimulated Light after Wavelength converter 1206 reflects incides the filter area of the respective color on filtering apparatus 1207 after the first optical module guiding that lens 1203 and 1205, dichroic mirror 1202 and catoptron 1204 form, and carries out optical filtering to improve excitation by this filter area.Through Wavelength converter 1206 transmission blue-light excited light lens 1210 and 1213, catoptron 1211 and dichroic mirror 1212 form under the guiding of the second optical module with filter through filtering apparatus 1207 after Stimulated Light carry out light path merging, and co-incident is to dodging device 1209, to carry out dodging.The Wavelength converter 1206 of the present embodiment and the structure of filtering apparatus 1207 can be applied in other embodiments above-described equally, do not repeat them here.
The present invention further provides a kind of light source assembly be made up of the Wavelength converter in above-described embodiment and filtering apparatus.
In sum, the filtering apparatus in light-source system of the present invention and light source assembly is relative with Wavelength converter fixing, and is driven by same drive unit, have structure simple, be easy to realize and synchronism advantages of higher.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize instructions of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (24)
1. a light-source system, is characterized in that, described light-source system comprises:
Exciting light sources, for generation of an exciting light;
Wavelength converter, described Wavelength converter comprises at least one wavelength-converting region;
Filtering apparatus, described filtering apparatus is relative with described Wavelength converter fixing, and comprises at least one first filter area;
Drive unit, for driving described Wavelength converter and described filtering apparatus, to make described wavelength-converting region and described first filter area be synchronized with the movement, and described wavelength-converting region is periodically arranged on the travel path of described exciting light, and then converts described excitation wavelength to Stimulated Light;
First optical module, incide described first filter area for guiding described Stimulated Light, described first filter area filters described Stimulated Light, to improve the excitation of described Stimulated Light;
Described Wavelength converter and described filtering apparatus are co-axially fixed two ring texturees;
Described wavelength-converting region is 180 degree with the center of relative described two ring texturees of described first filter area and arranges, and described first optical module is arranged so that the center of hot spot described two ring texturees relative to the hot spot that described Stimulated Light is formed on described filtering apparatus that described exciting light is formed on described Wavelength converter is 180 degree and arranges.
2. light-source system according to claim 1, is characterized in that, described drive unit is the wheelwork with a rotation axis, and described two ring texturees are coaxially fixed on described rotation axis.
3. light-source system according to claim 1, it is characterized in that, described Wavelength converter and described filtering apparatus axially spaced-apart are arranged, described first optical module comprises one and is arranged at least one light collecting device between described Wavelength converter and described filtering apparatus district, described light collecting device collects described Stimulated Light, and makes the incident angle the inciding described filtering apparatus energy be less than or equal within the scope of 60 degree of described Stimulated Light account for more than 90% of gross energy.
4. light-source system according to claim 1, it is characterized in that, described wavelength-converting region is arranged to reflect described Stimulated Light, to make described Stimulated Light contrary from the incident direction of the exit direction of described wavelength-converting region described wavelength-converting region relative to described exciting light.
5. light-source system according to claim 1, it is characterized in that, Stimulated Light described in transmission is arranged in described wavelength-converting region, to make described Stimulated Light identical with the incident direction of the relatively described wavelength-converting region of described exciting light from the exit direction of described wavelength-converting region.
6. light-source system according to claim 1, it is characterized in that, described first optical module comprises at least one light collecting device, described light collecting device collects described Stimulated Light, and makes the incident angle the inciding described filtering apparatus energy be less than or equal within the scope of 60 degree of described Stimulated Light account for more than 90% of gross energy.
7. light-source system according to claim 1, it is characterized in that, described first optical module comprises at least one reflection unit, described reflection unit reflects described Stimulated Light, to change the direction of propagation of described Stimulated Light, described reflection unit is plane reflection device or in semielliptical shape or in hemispherical and light reflection surface reflection unit inwardly.
8. light-source system according to claim 7, is characterized in that, described plane reflection device comprises dichroic mirror or catoptron.
9. light-source system according to claim 7, is characterized in that, described in semielliptical shape or in hemispherical and light reflection surface reflection unit is inwardly provided with light inlet, described exciting light incides described Wavelength converter through described light inlet.
10. light-source system according to claim 1, it is characterized in that, described Wavelength converter comprises one first photic zone, and described first photic zone drives periodical to be arranged on the travel path of described exciting light at described drive unit, exciting light described in described first photic zone transmission.
11. light-source systems according to claim 10, it is characterized in that, described light-source system also comprises the second optical module, and the described exciting light through described first photic zone transmission is carried out light path merging with the described Stimulated Light of filtering through described first filter area by described second optical module.
12. light-source systems according to claim 10, it is characterized in that, described filtering apparatus comprises the second photic zone or the second filter area, described exciting light through described first photic zone transmission is directed into described second photic zone or described second filter area, to carry out transmission or filtration along the light path identical with described Stimulated Light by described first optical module.
13. light-source systems according to claim 1, it is characterized in that, described light-source system comprises an illumination light light source further, described illumination light light source produces an illumination light, described Wavelength converter also comprises one first photic zone, described first photic zone drives periodical to be arranged on the travel path of described illumination light at described drive unit, illumination light described in described first photic zone transmission, described filtering apparatus comprises one second photic zone or the second filter area further, described illuminated light guide through described first photic zone transmission is guided to described second photic zone or described second filter area along the light path identical with described Stimulated Light by described first optical module, to carry out transmission or filtration.
14. light-source systems according to claim 1, it is characterized in that, described light-source system comprises an illumination light light source and the second optical module further, described illumination light light source produces an illumination light, and described illumination light and the described Stimulated Light of filtering through described first filter area are carried out light path merging by described second optical module.
15. light-source systems according to claim 1, it is characterized in that, described Wavelength converter is a tubular structure, and described filtering apparatus is a ring texture, and coaxially fix with described tubular structure, with coaxial under the driving of described drive unit and synchronous axial system.
16. light-source systems according to claim 15, it is characterized in that, described wavelength-converting region is arranged at the lateral wall of described tubular structure, and reflects described Stimulated Light, described first filter area to be arranged in described ring texture and to be positioned at the outside of described tubular structure, to receive described Stimulated Light.
17. light-source systems according to claim 1, it is characterized in that, described Wavelength converter and described filtering apparatus are coaxial two fixing and mutually nested tubular structures, with coaxial under the driving of described drive unit and synchronous axial system, described wavelength-converting region and described first filter area are arranged on the sidewall of described two tubular structures respectively, and described Stimulated Light is transmitted to described first filter area through described wavelength-converting region.
18. light-source systems according to claim 1, it is characterized in that, described Wavelength converter and described filtering apparatus are two end to end banded structures, described wavelength-converting region and described first filter area are arranged side by side on described two banded structures, and described drive unit drives described two banded structures to carry out reciprocal linear translation.
19. 1 kinds of light source assemblies, is characterized in that, described light source assembly comprises:
Wavelength converter, described Wavelength converter comprises at least one wavelength-converting region;
Filtering apparatus, described filtering apparatus is relative with described Wavelength converter fixing, and comprises at least one filter area, is synchronized with the movement under the driving of drive unit to make described wavelength-converting region and described filter area;
Described Wavelength converter and described filtering apparatus are two end to end banded structures, and described wavelength-converting region and described filter area are arranged side by side on described two banded structures.
20. light source assemblies according to claim 19, is characterized in that, described Wavelength converter and described filtering apparatus are co-axially fixed two ring texturees.
21. light source assemblies according to claim 19, is characterized in that, described Wavelength converter is a tubular structure, and described filtering apparatus is a ring texture, and coaxially fixes with described tubular structure.
22. light source assemblies according to claim 21, it is characterized in that, described wavelength-converting region is arranged at the lateral wall of described tubular structure, described filter area is arranged in described ring texture, and is positioned at the outside of described tubular structure.
23. light source assemblies according to claim 19, it is characterized in that, described Wavelength converter and described filtering apparatus are coaxial two fixing and mutually nested tubular structures, and described wavelength-converting region and described filter area are arranged on the sidewall of described two tubular structures respectively.
24. 1 kinds of optical projection systems, is characterized in that, comprise the light-source system as described in claim 1-18 any one.
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510310317.XA CN105045024B (en) | 2011-07-08 | 2011-07-08 | Optical projection system, light-source system and light source assembly |
| CN201510310042.XA CN104965385B (en) | 2011-07-08 | 2011-07-08 | Optical projection system, light-source system and light source assembly |
| CN201510308569.9A CN104914657B (en) | 2011-07-08 | 2011-07-08 | Projection system, light source system and light source assembly |
| CN201110191454.8A CN102566230B (en) | 2010-12-08 | 2011-07-08 | Projection system, light source system and light source component |
| CN201510310041.5A CN104965384B (en) | 2011-07-08 | 2011-07-08 | Optical projection system, light-source system and light source assembly |
| PCT/CN2011/083651 WO2012075947A1 (en) | 2010-12-08 | 2011-12-07 | Projection system, light source system, and light source assembly |
| US13/992,243 US9631792B2 (en) | 2010-12-08 | 2011-12-07 | Light source system employing wavelength conversion materials and color filters |
| US15/495,853 US10042240B2 (en) | 2010-12-08 | 2017-04-24 | Projection system, light source system and light source assembly |
| US15/495,844 US9904158B2 (en) | 2010-12-08 | 2017-04-24 | Projection system, light source system and light source assembly |
| US15/495,834 US10073334B2 (en) | 2010-12-08 | 2017-04-24 | Projection system, light source system and light source assembly |
Applications Claiming Priority (7)
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| CN201010624858 | 2010-12-30 | ||
| CN201110191454.8A CN102566230B (en) | 2010-12-08 | 2011-07-08 | Projection system, light source system and light source component |
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| CN201510310041.5A Division CN104965384B (en) | 2011-07-08 | 2011-07-08 | Optical projection system, light-source system and light source assembly |
| CN201510310042.XA Division CN104965385B (en) | 2011-07-08 | 2011-07-08 | Optical projection system, light-source system and light source assembly |
| CN201510310317.XA Division CN105045024B (en) | 2011-07-08 | 2011-07-08 | Optical projection system, light-source system and light source assembly |
| CN201510308569.9A Division CN104914657B (en) | 2011-07-08 | 2011-07-08 | Projection system, light source system and light source assembly |
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| CN102566230A CN102566230A (en) | 2012-07-11 |
| CN102566230B true CN102566230B (en) | 2015-05-27 |
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