CN115793369A - Hybrid light source device and projection display system - Google Patents
Hybrid light source device and projection display system Download PDFInfo
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- CN115793369A CN115793369A CN202211519171.6A CN202211519171A CN115793369A CN 115793369 A CN115793369 A CN 115793369A CN 202211519171 A CN202211519171 A CN 202211519171A CN 115793369 A CN115793369 A CN 115793369A
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Abstract
The invention discloses a mixed light source device and a projection display system. The scattering and fluorescence conversion device includes a scattering component and a fluorescence conversion component. The laser light source continuously emits blue laser and emits green and red laser in a time-sharing manner. When the laser light source only emits blue laser, the blue light is transmitted to the scattering component through the laser light path and is transmitted. When the laser light source emits blue and green laser at the same time or emits blue and red laser at the same time, the green and red laser penetrates through the scattering component; the blue laser beam is reflected by the scattering component and irradiates the fluorescent conversion component through the blue light loop, and the blue laser excites the fluorescent powder to emit red and green fluorescent light. The fluorescence light path receives the excited fluorescence and transmits the fluorescence to the light combination component. The light combination component can reflect red and green fluorescence and transmit red, green and blue laser, so that the light combination of the laser and the fluorescence is realized.
Description
Technical Field
The invention relates to the technical field of projection display, in particular to a mixed light source device which comprises three-color laser and laser excited fluorescent powder for emitting light and is suitable for a projection display system.
Background
Along with the promotion of semiconductor laser technology, be applied to the laser array of the pure laser projection product of three-colour and miniaturize more and more, the laser chip quantity that uses is also less and less. Although this can reduce the cost and is beneficial to reducing the volume of the projection product, it can bring great difficulty to eliminate speckle.
In addition, the single-chip DLP projection display system outputs a projection image in a time-sharing light-combining manner, and the brightness improvement of a projection product is also limited by a time-sharing light-emitting manner of the red, green and blue lasers.
Disclosure of Invention
The invention aims to provide a mixed light source device, which is applied to the field of projection display and is used for solving the problems of poor speckle effect, low luminous flux or low luminous efficiency of a three-color pure laser display technology in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a mixed light source device comprises a laser light source, a first light combination component, a polarization light splitting component, a quarter wave plate, a lens component, a scattering and fluorescence conversion device, a reflector component and a second light combination component.
The laser light source comprises a first sub light source, a second sub light source and a third sub light source which are arranged side by side. The first sub-light source is driven by direct current and continuously emits a first laser beam; the second sub light source and the third sub light source sequentially emit light in a time-sharing manner and respectively emit a second laser beam and a third laser beam; the optical axes of the three laser beams are parallel, and the main wavelengths of the three laser beams are different; the polarization states of the three laser beams are the same and are all first polarized light.
The first light combination component is formed by combining a plurality of reflectors and a dichroic mirror and is used for combining the first laser beam, the second laser beam and the third laser beam into a light beam with a coincident optical axis.
The polarization light splitting component can transmit the first polarized light and reflect the second polarized light with the vibration direction perpendicular to the first polarized light.
The scattering and fluorescence conversion device comprises a scattering component, a fluorescence conversion component, a heat dissipation component and a motor; the scattering component, the fluorescence conversion component and the radiating component are all circular rings and are concentrically arranged and fixed on the motor rotating shaft.
Furthermore, the scattering component comprises a first scattering region, a second scattering region and a third scattering region, wherein light incident surfaces of the second scattering region and the third scattering region are coated with a filter film, and can transmit the second laser beam and the third laser beam and reflect the first laser beam; the first scattering region is transparent to the first laser beam.
Further, the fluorescence conversion member includes an auxiliary region, a first fluorescence conversion region, a second fluorescence conversion region; the auxiliary area functions as a heat conducting and auxiliary weight.
Further, the first fluorescence conversion region and the second fluorescence conversion region both include a transparent substrate, a phosphor layer, and a filter layer.
The lens assembly comprises a first lens group, a second lens group, a third lens group and a fourth lens group; the first lens group and the second lens group are respectively positioned on the light-in side and the light-out side of the diffusion component and are respectively used for converging and collimating laser beams; the third lens group and the fourth lens group are positioned on the light inlet side and the light outlet side of the fluorescence conversion component and are respectively used for converging the laser beams and receiving and collimating the fluorescence beams.
The reflector assembly comprises a first reflector and a second reflector, and is used for reflecting light beams and folding light paths.
The second light-combining component is a dichroic mirror and is used for reflecting fluorescence and transmitting laser so that the fluorescence and the laser are combined into a coaxial light beam.
Further, the first lens group, the quarter-wave plate, the polarization beam splitting assembly, the first reflector and the third lens group sequentially form a first laser loop; the quarter-wave plate is perpendicular to the optical axis and is positioned between the first lens group and the polarization beam splitting assembly; the polarization beam splitting assembly is placed at 45 degrees to the optical axis.
Further, when the first sub-light source emits a first laser beam and the second sub-light source and the third sub-light source do not emit light, the first laser beam sequentially penetrates through the polarization conversion assembly, the quarter-wave plate and the first lens group and then is focused on the scattering component; at the moment, the scattering and fluorescence conversion device synchronously rotates at a high speed, so that the first laser beam can irradiate the first scattering area and transmit, then is collimated into a parallel beam by the second lens group, and then passes through the second light combining component.
Further, when the first sub-light source and the second sub-light source emit light simultaneously, a first laser beam and a second laser beam emitted by the first sub-light source and the second sub-light source are combined into a coaxial beam through the first light combining component, then sequentially penetrate through the polarization beam splitting component, the quarter wave plate and the first lens component, and are focused on the second scattering area of the scattering component; at the moment, the second laser beam penetrates through the second scattering area, is received by the second lens group, is collimated into a parallel beam and then penetrates through the second light combination component; the first laser beam is reflected by the light incoming surface filter coating of the second scattering region, the reflected light enters the first laser loop, the first laser beam in the first laser loop penetrates through the quarter-wave plate for the second time and then is converted into second polarized light, the second polarized light is reflected when the first laser beam enters the surface of the polarization beam splitting assembly again, finally the first laser beam is focused on the first fluorescence region to excite the first fluorescence region to emit a first fluorescence beam, the first fluorescence beam is received by the fourth lens group and collimated into a parallel beam, and the parallel beam and the second laser beam are reflected by the second reflector and the second light combining assembly to form a coaxial beam with the second laser beam.
Further, when the first sub-light source and the third sub-light source emit light simultaneously, the first laser beam and the third laser beam emitted by the first sub-light source and the third sub-light source are combined into a coaxial beam through the first light combining component, then sequentially penetrate through the polarization beam splitting component, the quarter wave plate and the first lens component, and are focused on a third scattering area of the scattering component; at the moment, the third laser beam penetrates through the third scattering area, is received by the second lens group, is collimated into a parallel beam and then penetrates through the second light combining component; the first laser beam is reflected by the light incoming surface filter film of the third scattering region, the reflected light enters the first laser loop, the first laser beam in the first laser loop penetrates through the quarter-wave plate for the second time and is converted into second polarized light, the second polarized light is reflected when the first laser beam enters the surface of the polarization beam splitting assembly again, finally the first laser beam is focused on the second fluorescent region, the second fluorescent region is excited to emit second fluorescent light beams, the second fluorescent light beams are received by the fourth lens group and are collimated into parallel light beams, and the parallel light beams are reflected by the second reflector and the second light combining assembly and are combined with the second laser beam into a coaxial light beam.
After the above processes, the first laser beam, the second laser beam, the third laser beam, the first fluorescent light beam and the second fluorescent light beam are combined into a coaxial light beam.
A hybrid light source device comprising:
the laser device comprises a laser light source, a first laser beam, a second laser beam and a third laser beam, wherein the laser light source is used for emitting three first laser beams, the second laser beams and the third laser beams, the main wavelengths of the first laser beams are different, the polarization states of the first laser beams are the same, and the first laser beams, the second laser beams and the third laser beams are first polarized light; the first laser beam is vertical to the light paths of the second laser beam and the third laser beam;
the polarization light splitting component transmits the first polarized light and reflects the second polarized light with the vibration direction vertical to the first polarized light;
the third light combining component is arranged between the laser light source and the fluorescence conversion device, is parallel to the light paths of the second laser beam and the third laser beam and is vertical to the light path of the first laser beam;
the scattering and fluorescence conversion device comprises a scattering component and a fluorescence conversion component which are arranged in a circular ring shape, wherein the scattering component is divided into a first scattering area, a second scattering area and a third scattering area which are arranged on an outer ring, and the fluorescence conversion component is divided into a first fluorescence conversion area and a second fluorescence conversion area which are arranged on an inner ring;
the first scattering region is used for transmitting the first laser beam, and the second scattering region is used for transmitting the second laser beam and reflecting the first laser beam; the third scattering region is used for transmitting the third laser beam and reflecting the first laser beam;
the quarter wave plate is arranged between the polarization beam splitting assembly and the third light combining assembly, and is used for converting the first laser beam reflected by the scattering and fluorescence conversion device into second polarized light which is reflected to the first light path changing unit through the polarization beam splitting assembly;
the polarization light splitting component is used for enabling the second polarized light to be incident to the first fluorescence conversion area or the second fluorescence conversion area; correspondingly exciting the first fluorescent region to emit a first fluorescent light beam or exciting the second fluorescent region to emit a second fluorescent light beam;
and the second light path changing unit is used for combining the first fluorescent light beam with the second laser beam passing through the scattering component or reflecting the second fluorescent light beam with the third laser beam passing through the scattering component to the second light combining component for light combination.
The invention also provides a projection display system comprising the mixed light source device.
The hybrid light source device and the projection display system provided by the application have the advantages of but not limited to:
the invention provides a mixed light source device and a projection display system, wherein a scattering and fluorescence conversion device is additionally used on the basis of a three-color pure laser projection system, and corresponding green and red fluorescence can be supplemented when red laser and green laser are emitted, so that the speckle contrast of a pure laser projection product is favorably reduced, and the luminous flux can be improved. The invention adopts a transmission type fluorescence conversion scheme, has simple system structure and is more beneficial to reducing the volume of a projection system.
Drawings
Fig. 1 is a schematic light path diagram of a hybrid light source device according to an embodiment of the invention;
fig. 2 is a schematic optical path diagram of a hybrid light source device according to a second embodiment of the present invention;
FIG. 3 is a schematic diagram of a scattering and fluorescence conversion device according to the present invention;
FIG. 4 is a schematic diagram of the timing control of the laser source according to the present invention;
in the drawings, the reference numbers: 10-a laser light source; 101-a first sub-light source; 102-a second sub-light source; 103-a third sub-light source; 20-a first light combining component; 30-a polarization beam splitting assembly; 40-quarter wave plate; 501-a first lens group; 502-a second lens group; 503-a third lens group; 504-a fourth lens group; 60-a scattering and fluorescence conversion device; 601-a scattering member; 602-a fluorescence conversion component; 603-a heat sink member; 604-a motor; 6011-a first scattering zone; 6012-a second scattering zone; 6013-a third scattering zone; 6021-auxiliary zone; 6022-a first fluorescence conversion region; 6023-second fluorescence conversion zone; 701-a first mirror; 702-a second mirror; 801-a second light combining component; 802-third light-combining component.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
On the contrary, this application is intended to cover any alternatives, modifications, equivalents, and alternatives that may be included within the spirit and scope of the application as defined by the appended claims. Furthermore, in the following detailed description of the present application, certain specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent to one skilled in the art that the present application may be practiced without these specific details.
A hybrid light source device and a projection display system according to an embodiment of the present application will be described in detail below with reference to fig. 1. It is to be noted that the following examples are only for explaining the present application and do not constitute a limitation to the present application.
Example one
As shown in fig. 1, the present embodiment provides a hybrid light source apparatus, which includes a laser light source 10, a first light combining component 20, a polarization splitting component 30, a quarter-wave plate 40, a first lens component 501, a second lens component 502, a third lens component 503, a fourth lens component 504, a scattering and fluorescence conversion apparatus 60, a first mirror 701, a second mirror 702, and a second light combining component 801.
The laser light source 10 includes a first sub-light source 101, a second sub-light source 102, and a third sub-light source 103, which are arranged side by side. Wherein, the first sub-light source 101 is driven by direct current and continuously emits blue laser beam with main wavelength of 465 nm; the second sub light source 102 and the third sub light source 103 emit light in sequence in a time-sharing manner, and emit green laser with a dominant wavelength of 525nm and red laser beams with dominant wavelengths of 639nm, 643nm and 647nm respectively; the optical axes of the red, green and blue laser beams are parallel and are all P-polarized light.
The first light combining component 20 is disposed opposite to the laser light source 10, is formed by combining 1 reflector and two dichroic mirrors, and is used for combining the red, green and blue laser beams into a laser beam with a coincident optical axis.
The polarization beam splitter assembly 30 is a plane polarization beam splitter, and can transmit P-polarized light and reflect S-polarized light.
The second light-combining component is a dichroic mirror, and the coating specification is as follows: transmits light with wavelength range of 445nm-535nm and 635nm-680nm, and reflects light with wavelength range of 536nm-634 nm.
As shown in fig. 3, the scattering and fluorescence converting device 60 includes a scattering member 601, a fluorescence converting member 602, a heat radiating member 603, and a motor 604; the diffusion member 601 includes a first diffusion region 6011, a second diffusion region 6012, and a third diffusion region 6013; the fluorescence conversion member 602 includes an auxiliary region 6021, a first fluorescence conversion region 6022, and a second fluorescence conversion region 6023.
The scattering component 601, the fluorescence conversion component 602 and the heat dissipation component 603 are all circular rings and concentrically arranged and fixed on a rotating shaft of the motor 604, and the motor 604 drives the scattering and fluorescence conversion device 60 to rotate at a high speed and is matched and controlled with the time-sharing light emission of the laser light source 10 in time sequence.
The first scattering region 6011 is a scattering sheet, the light incident surface is a mirror-surface-coated antireflection film, and the light emitting surface is a scattering surface.
The second scattering area 6012 and the third scattering area 6013 are also scattering sheets, the light incident surface is plated with a light splitting film, and the plating specification is as follows: transmitting light with a wavelength range of 440nm-470nm and reflecting light with a wavelength range of 500nm-680 nm; the light-emitting surface is a scattering surface.
The auxiliary region 6021 is made of metal material and functions as auxiliary heat conduction and weight balance.
The first fluorescent conversion region 6022 and the second fluorescent conversion region 6023 each comprise a transparent substrate, a fluorescent powder layer, and a filter layer; wherein the phosphor layer of the first phosphor conversion region 6022 is green phosphor and the phosphor layer of the second phosphor conversion region 6023 is yellow or orange phosphor.
A blue light loop is further provided in this embodiment, and the first lens group 501, the quarter-wave plate 40, the polarization splitting component 30, the first reflector 701, and the third lens group 503 are sequentially disposed according to the propagation direction of light; the quarter-wave plate 40 is arranged perpendicular to the optical axis and located between the first lens group 501 and the polarization beam splitting assembly 30, and the polarization beam splitting assembly 30 is placed at an angle of 45 degrees with the optical axis; the optical axis of the light-in end of the blue light loop is opposite to the scattering component 601, and the optical axis of the light-out end is opposite to the fluorescence conversion component.
As shown in fig. 4, a light source timing control diagram is that, in a time period from t0 to t1, the first sub light source 101 emits a blue laser beam, the second sub light source 102 and the third sub light source 103 do not emit light, and the blue laser beam sequentially passes through the first light combining component 20, the polarization conversion component 30, the quarter wave plate 40 and the first lens group 501 and is focused on the diffusion component 601; at this time, the scattering and fluorescence conversion device 60 rotates at a high speed, so that the blue laser beam can penetrate through the first diffusion region 6011; then collimated into parallel beams by the second lens group 502, and transmitted through the second light combining component 801.
In a time period from t1 to t2, the first sub light source 101 and the second sub light source 102 emit light simultaneously, and a blue laser beam and a green laser beam emitted by the first sub light source and the second sub light source are combined into a coaxial beam by the first light combining component 20, then sequentially pass through the polarization beam splitting component 30, the quarter wave plate 40 and the first lens component 501, and are focused on the diffusion component 601; at this time, the scattering and fluorescence converting device 60 rotates at a high speed, so that the blue and green laser beams are irradiated on the second diffusion area 6012; the green laser beam passes through the second diffusing area 6012, is received by the second lens group 502, is collimated into a parallel light beam, and then passes through the second light combining assembly 801; the blue laser beam is reflected by the light incident surface of the second diffusion area 6012, and the reflected light enters the blue light loop. The blue laser beam in the blue light loop passes through the quarter-wave plate for the second time and then becomes S polarized light, at this time, the S polarized light is reflected when the S polarized light enters the surface of the polarization beam splitting assembly 30 again, finally, the blue laser beam passes through the blue light loop and is focused on the first fluorescent area 6022, the green fluorescent powder in the first fluorescent area is excited to emit green fluorescent light, the green fluorescent light is received by the fourth lens group 504 and collimated into parallel light beams, and the parallel light beams are reflected by the second reflecting mirror 702 and the second light combining assembly 801 and combined with the green laser beam into a coaxial light beam.
In a time period from t2 to t3, the first sub-light source 101 and the third sub-light source 103 emit light simultaneously, and a blue laser beam and a red laser beam emitted by the first sub-light source and the third sub-light source are combined into a coaxial beam by the first light combining component 20, then sequentially pass through the polarization splitting component 30, the quarter wave plate 40 and the first lens component 501, and are focused on the diffusion component 601; at this time, the scattering and fluorescence conversion device 60 rotates at a high speed, so that the blue and red laser beams are irradiated on the third diffusion area 6013; wherein, the red laser beam passes through the second diffusion zone 6013 and is received by the second lens group 502, and is collimated into a parallel beam, and then passes through the second light combining assembly 801; the blue laser beam is reflected by the light incident surface of the second diffusion area 6013, and the reflected light enters the blue light loop. The blue laser beam in the blue light loop passes through the quarter-wave plate for the second time and then becomes S polarized light, at this time, the blue laser beam enters the surface of the polarization beam splitting assembly 30 again and is reflected, finally, the blue laser beam passes through the blue light loop and is focused on the second fluorescent area 6023, the yellow fluorescent powder in the second fluorescent area is excited to emit yellow fluorescent light, the yellow fluorescent light passes through the filter layer and then becomes red fluorescent light, the red fluorescent light is received by the fourth lens set 504 and collimated into parallel light beams, and the parallel light beams are reflected by the second reflecting mirror 702 and the second light combining assembly 801 and combined with the red laser beam into a coaxial light beam.
After the processes, the red, green and blue laser beams and the red and green fluorescent light beams are combined into a coaxial beam in a time period from t0 to t 3.
The present embodiment can be applied to a projection display system, which further includes a light integrator, a relay optical path, a DMD chip, a projection lens, etc., in addition to the above-mentioned hybrid light source device.
Example two
The embodiment is similar to the embodiment in principle, and the difference lies in the difference of the position settings of the sub-light sources of the laser light source, so the blue light loop is also correspondingly changed in matching manner, and the specific implementation manner is as follows:
as shown in fig. 2, the present embodiment provides a hybrid light source apparatus, which includes a laser light source 10, a first light combining component 20, a polarization splitting component 30, a quarter-wave plate 40, a first lens component 501, a second lens component 502, a third lens component 503, a fourth lens component 504, a scattering and fluorescence conversion apparatus 60, a second reflecting mirror 702, a second light combining component 801, and a third light combining component 802.
The laser light source 10 includes a first sub light source 101, a second sub light source 102, and a third sub light source 103, wherein the second sub light source 102 and the third sub light source 103 are disposed side by side, and the first sub light source 101 is disposed apart from the first sub light source and the third sub light source, and emits a blue laser beam perpendicular to green and red laser beams emitted from the second sub light source 102 and the third sub light source 103.
The third light combining component 802 is a dichroic mirror, and the coating specification thereof is as follows: transmits the light beam with the wavelength ranging from 500nm to 680nm and reflects the light beam with the wavelength ranging from 440nm to 500 nm.
The technical scheme of the blue light loop in the embodiment is as follows:
the blue light loop is sequentially provided with a first lens group 501, a third light combination component 802, a quarter-wave plate 40, a polarization light splitting component 30 and a third lens group 503 according to the blue light propagation direction; the quarter-wave plate 40 is arranged perpendicular to the optical axis and is arranged in the middle of the third light combination component 802 and the polarization splitting component 30; the optical axis of the light-in end of the blue light loop is opposite to the scattering component 601, and the optical axis of the light-out end is opposite to the fluorescence conversion component.
The green laser beam emitted by the second sub-light source 102 and the red laser beam emitted by the third sub-light source 103 are combined into a beam of light with the optical axis coinciding through the first light combining component 20, and then the beam of light passes through the third light combining component 802.
The blue laser beam emitted by the first sub-light source 101 passes through the polarization beam splitting assembly 30 and the quarter-wave plate 40, then enters the surface of the third light combining assembly 802, and is then reflected.
A beam of light, which is the composite optical axis of the reflected blue laser beam and the transmitted red and green laser beams, is focused on the surface of the scattering member 601 through the first lens group 501.
When the above-described synthesized one beam of laser beams is irradiated to the second scattering region 6012 and the third scattering region 6013, blue light is reflected back to the blue light circuit and irradiated to the first fluorescent region 6022 and the second fluorescent region 6023 through the blue light circuit.
The above description is a difference between the first embodiment and the second embodiment, and other non-described optical path setting modes and optical path working principles are the same as the first embodiment, and those skilled in the art can easily understand that the description is not repeated here.
The present embodiment can be applied to a projection display system, which further includes a light integrator, a relay optical path, a DMD chip, a projection lens, and the like, in addition to the above-mentioned hybrid light source device.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A hybrid light source device, comprising:
the laser device comprises a laser light source, a first laser beam, a second laser beam and a third laser beam, wherein the laser light source is used for emitting three first laser beams, the second laser beams and the third laser beams, the main wavelengths of the first laser beams are different, the polarization states of the first laser beams are the same, and the first laser beams, the second laser beams and the third laser beams are first polarized light;
the polarization light splitting component transmits the first polarized light and reflects the second polarized light with the vibration direction vertical to the first polarized light;
the scattering and fluorescence conversion device comprises a scattering component and a fluorescence conversion component which are arranged in a circular ring shape, wherein the scattering component is divided into a first scattering area, a second scattering area and a third scattering area which are arranged on an outer ring, and the fluorescence conversion component is divided into a first fluorescence conversion area and a second fluorescence conversion area which are arranged on an inner ring;
the first scattering region is used for transmitting the first laser beam, and the second scattering region is used for transmitting the second laser beam and reflecting the first laser beam; the third scattering region is used for transmitting the third laser beam and reflecting the first laser beam;
the quarter-wave plate is arranged between the polarization beam splitting assembly and the scattering and fluorescence conversion device and used for converting the first laser beam reflected by the scattering and fluorescence conversion device into second polarized light and reflecting the second polarized light to the first light path changing unit through the polarization beam splitting assembly;
a first optical path changing unit for making the second polarized light incident to the first fluorescence conversion region or the second fluorescence conversion region; correspondingly exciting the first fluorescent region to emit a first fluorescent light beam or exciting the second fluorescent region to emit a second fluorescent light beam;
and the second light path changing unit is used for combining the first fluorescent light beam with the second laser beam passing through the scattering component or reflecting the second fluorescent light beam and the third laser beam passing through the scattering component to the second light combining component for light combination.
2. The hybrid light source device of claim 1, wherein the first optical path changing unit includes a first reflecting mirror for reflecting the light beam and folding the optical path.
3. The hybrid light source device according to claim 1, wherein the second optical path changing unit is a second reflecting mirror for reflecting the light beam and folding the optical path.
4. The hybrid light source device according to claim 1, further comprising a first lens group, a second lens group, a third lens group and a fourth lens group, wherein the first lens group and the second lens group are respectively disposed at an incident end and an exit end of one side of the scattering and fluorescence conversion device, and the third lens group and the fourth lens group are respectively disposed at an incident end and an exit end of the other side of the scattering and fluorescence conversion device.
5. The hybrid light source device of claim 1, wherein the first sub-light source emits light by direct current driving, and the second sub-light source and the third sub-light source emit light in sequence in a time-sharing manner.
6. The hybrid light source device according to claim 1, wherein the scattering member and the fluorescence conversion member are both circular rings and are concentrically disposed and fixed to a rotating shaft of the motor.
7. The hybrid light source device of claim 1, wherein the first and second phosphor conversion regions each comprise a transparent substrate, a phosphor layer, and a filter layer.
8. The hybrid light source device of claim 1, wherein the fluorescent conversion member further comprises an auxiliary region for heat conduction and an auxiliary weight;
and a first light combining component is also arranged between the laser light source and the polarization light splitting component.
9. A hybrid light source device, comprising:
the laser device comprises a laser light source, a first laser beam, a second laser beam and a third laser beam, wherein the laser light source is used for emitting three first laser beams, the second laser beams and the third laser beams, the main wavelengths of the first laser beams are different, the polarization states of the first laser beams are the same, and the first laser beams, the second laser beams and the third laser beams are first polarized light; the first laser beam is vertical to the light paths of the second laser beam and the third laser beam;
the polarization light splitting component transmits the first polarized light and reflects the second polarized light with the vibration direction vertical to the first polarized light;
the third light combining component is arranged between the laser light source and the fluorescence conversion device, is parallel to the light paths of the second laser beam and the third laser beam and is vertical to the light path of the first laser beam;
the device comprises a scattering and fluorescence conversion device, a light source and a light source, wherein the scattering and fluorescence conversion device comprises a scattering component and a fluorescence conversion component which are arranged in a circular ring shape, the scattering component is divided into a first scattering area, a second scattering area and a third scattering area which are arranged on an outer ring, and the fluorescence conversion component is divided into a first fluorescence conversion area and a second fluorescence conversion area which are arranged on an inner ring;
the first scattering region is used for transmitting the first laser beam, and the second scattering region is used for transmitting the second laser beam and reflecting the first laser beam; the third scattering region is used for transmitting the third laser beam and reflecting the first laser beam;
the quarter wave plate is arranged between the polarization beam splitting assembly and the third light combining assembly and is used for converting the first laser beam reflected by the scattering and fluorescence conversion device into second polarized light and reflecting the second polarized light to the first light path changing unit through the polarization beam splitting assembly;
the polarization light splitting component is used for enabling the second polarized light to be incident to the first fluorescence conversion area or the second fluorescence conversion area; correspondingly exciting the first fluorescent region to emit a first fluorescent light beam or exciting the second fluorescent region to emit a second fluorescent light beam;
and the second light path changing unit is used for combining the first fluorescent light beam with the second laser beam passing through the scattering component or reflecting the second fluorescent light beam with the third laser beam passing through the scattering component to the second light combining component for light combination.
10. A projection display system comprising the hybrid light source device of any one of claims 1-9.
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| CN202211519171.6A CN115793369A (en) | 2022-11-30 | 2022-11-30 | Hybrid light source device and projection display system |
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| CN202211519171.6A CN115793369A (en) | 2022-11-30 | 2022-11-30 | Hybrid light source device and projection display system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116794919A (en) * | 2023-08-28 | 2023-09-22 | 宜宾市极米光电有限公司 | Light source system and projection equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116794919A (en) * | 2023-08-28 | 2023-09-22 | 宜宾市极米光电有限公司 | Light source system and projection equipment |
| CN116794919B (en) * | 2023-08-28 | 2023-12-12 | 宜宾市极米光电有限公司 | Light source system and projection equipment |
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