CN210072303U - Light source for projection - Google Patents
Light source for projection Download PDFInfo
- Publication number
- CN210072303U CN210072303U CN201921179075.5U CN201921179075U CN210072303U CN 210072303 U CN210072303 U CN 210072303U CN 201921179075 U CN201921179075 U CN 201921179075U CN 210072303 U CN210072303 U CN 210072303U
- Authority
- CN
- China
- Prior art keywords
- light
- projection
- filter
- penetrates
- area
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Images
Abstract
A light source for projection, comprising: a laser light source for generating a laser beam; the rotating wheel is rotatably arranged on the path of the laser beam and is provided with at least one filter area, and the laser beam can penetrate through the filter area; and the phosphor can be excited by the laser beam penetrating through the filter area to generate a composite beam and guide the composite beam to the rotating wheel, and the composite beam penetrates through the filter area to generate a projection beam and guides the projection beam to a projection direction.
Description
Technical Field
The utility model relates to a projection light source.
Background
A Projector (Projector) projects color lights of different colors to a display device to display images through a light path system composed of a light source, a filter, a fluorescent color Wheel (PW), a spectroscope and other optical elements.
Besides the size and cost of the projector, different light sources or different optical path system designs may affect the size and cost of the projector. But also directly affect the brightness and color appearance of the final displayed image.
As for the light source, a Laser Diode (Laser Diode) has advantages of high brightness, long life, and extremely small heat generation. Therefore, it is the first choice of various light sources in terms of product life, image brightness and color performance. However, in order to obtain a wide color gamut light source structure, a projector using laser diodes of three primary colors (red, green, and blue) as a light source has a very high cost and is not highly acceptable in the market. Therefore, the image performance and cost problems are considered as a deficiency to be improved.
In addition, because the laser is linearly polarized light, the speckle problem exists, the projection effect is influenced, particularly the speckle problem is serious for red laser, and aiming at the problem, the scheme of combining the laser beam and the LED beam to disperse the speckle is provided at present, but the light path design is complex.
The light combination of the existing laser beam and the LED beam is completed through the optical filter, the optical filter reflects the laser beam and allows the LED beam to penetrate through, so as to realize the light combination, taking red light as an example, the wavelength range of the red LED beam is 590-638nm, the wavelength range of the red laser beam is 633-645nm, the light with the passing wavelength greater than 620nm is reflected by the optical filter, and the rest penetrates through the optical filter, so the red LED beam with the wavelength greater than 620nm is reflected, which is equivalent to the LED beam with the wavelength of 620-638nm cannot participate in the light combination, which results in the loss of a great number of LED beams, and similarly, the combined light of green light and blue light also results in the loss of a great number of LED beams.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a light path is simple and obtain the light source that is used for the projection of the projection beam of required wave band.
The purpose of the utility model is realized through the following technical scheme:
a light source for projection, comprising:
a laser light source for generating a laser beam;
the rotating wheel is rotatably arranged on the path of the laser beam and is provided with at least one filter area, and the laser beam can penetrate through the filter area;
and the fluorescent body can be excited by the laser beam penetrating through the filter area to generate a first light beam and guide the first light beam to the rotating wheel, and the first light beam penetrates through the filter area to filter out the unnecessary wave band so as to obtain a projection light beam of the required wave band and guide the projection light beam to a projection direction.
The filter regions are included, and the wave bands of projected light beams obtained by the first light beams penetrating through the filter regions are different.
The first light beam is yellow light and the projected light beam is green and/or red light.
The first light beam is white light and the projected light beam is green and/or red and/or blue light.
The first light beam is red light, green light, blue light or yellow light, and the corresponding projection light beam is red light, green light, blue light or yellow light with a required waveband.
The fluorophor is a rotatable fluorescent wheel or an fluorophor of an LED light source or a ceramic fluorophor.
The light guide assembly comprises a first collimating mirror and a second collimating mirror, the first collimating mirror and the second collimating mirror are respectively arranged at two sides of the rotating wheel, and the laser beam sequentially penetrates through the first collimating mirror, the filter area and the second collimating mirror and then is guided to the fluorescent body; the composite light beam penetrates through the second collimating mirror and the filter area in sequence to generate a projection light beam, and the projection light beam penetrates through the first collimating mirror and then is guided to a projection direction.
The light guide assembly also comprises a first light filter, and the laser beam sequentially penetrates through the first light filter, the first collimating mirror, the filter area and the second collimating mirror and then is guided to the fluorophor; the composite light beam sequentially penetrates through the second collimating mirror and the filter area to generate a projection light beam, and the projection light beam penetrates through the first collimating mirror and then is reflected by the first optical filter to be guided to the projection direction.
The light guide assembly further comprises a reflector, the rotating wheel is provided with a reflecting area, the reflecting area can reflect the laser beam to generate a third projection beam and guide the third projection beam to the projection direction, and the laser beam sequentially penetrates through the first light filter, eccentrically penetrates through the first collimating mirror, is reflected by the reflecting area, eccentrically penetrates through the first collimating mirror, penetrates through the first light filter and is reflected by the reflector to guide the projection direction.
The rotating wheel is provided with a light combining area, the laser beam can be reflected by the light combining area and guided to the projection direction, the spot removing beam can penetrate the light combining area and guided to the projection direction, and the spot removing beam and the laser beam have the same color to synthesize a fourth projection beam; the laser beam sequentially penetrates through the first optical filter, eccentrically penetrates through the first collimating mirror, is reflected by the light combining area, eccentrically penetrates through the first collimating mirror, penetrates through the first optical filter and is reflected by the reflecting mirror to be guided to the projection direction, and the spot removing beam sequentially penetrates through the second collimating mirror, penetrates through the light combining area, penetrates through the first collimating mirror and is reflected by the first optical filter and then is guided to the projection direction.
The laser light source can produce not simultaneous working and at least two of different colours laser beam, it is corresponding to separate the spot light source can produce not simultaneous working and at least two of different colours separate the spot light beam, it is corresponding the runner includes along its profile layout at least two it closes the light zone to the synthesis is not simultaneous working and at least two of different colours fourth project light beam.
The rotating wheel is provided with a wavelength conversion area, the wavelength conversion area is provided with a wavelength conversion material, and the laser beam can excite the wavelength conversion area to generate a fifth projection beam and guide the fifth projection beam to the projection direction.
The rotating wheel is provided with a penetration area, the laser beam penetration area is used for deenergizing the fluorescent body to generate a sixth projection beam, and the sixth projection beam penetrates through the penetration area and is guided to the projection direction.
The utility model discloses following beneficial effect has:
the filter area can be penetrated by laser beams, the fluorescent body can be excited by the laser beams penetrating through the filter area to generate composite light beams, the composite light beams penetrate through the filter area to generate projection light beams and are guided to a projection direction, if two filter areas are arranged, the composite light beams penetrate through one filter area to generate first projection light beams, penetrate through the other filter area to generate second projection light beams, the composite light beams are taken as yellow light, the yellow light passing through the two filter areas can generate green light and red light, and the filter and the red light have no speckle problem; the phosphor adopts a monochromatic fluorescent wheel which does not need time sequence control, so that the system efficiency can be increased and the structure heat dissipation efficiency can be enhanced;
the speckle problem of the laser is solved by combining the laser beam and the speckle removing beam through the rotating wheel, and various beams are required to share the collimating mirror and the optical filter for projection, so that the structure of a light path is greatly simplified; the light combining area comprises a filtering area and a penetrating area, because the light spot of the laser beam is far smaller than that of the spot resolving beam, and the width of the filtering area is slightly larger than that of the laser beam, most of the spot resolving beam completely penetrates the penetrating area and cannot be attenuated, and the small spot resolving beam passes through the filtering area, so that the filtering area can enable the spot resolving beam which accords with the penetrating spectrum to penetrate through, and only a small part of the spot resolving beam is attenuated.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic structural view of a first embodiment of the wheel of fig. 1.
Fig. 3 is a schematic structural view of a second embodiment of the wheel of fig. 1.
Fig. 4 is a schematic structural diagram of a second embodiment of the present invention.
Fig. 5 is a schematic structural view of the first embodiment of the wheel in fig. 4.
FIG. 6 is a schematic structural diagram of a second embodiment of the runner of FIG. 4
Fig. 7 is a schematic structural diagram of a third embodiment of the present invention.
Fig. 8 is a schematic structural view of the wheel in fig. 7.
Detailed Description
In a first embodiment, referring to fig. 1 and 2, a light source for projection includes: the device comprises a laser light source 1, a spot-removing light source, a rotating wheel 2, a light guide assembly, a second optical filter F2, a fourth collimating mirror 6 and a fluorescent wheel 7.
The laser light source 1 can generate a blue laser beam B1 and a red laser beam R1 which do not work simultaneously, the fluorescent wheel 7 can be excited by the blue laser beam B1 to generate a yellow light beam Y1, the spot-removing light source comprises a red LED light source 5 which is used for generating a red spot-removing light beam R2 which is non-linearly polarized, the light-emitting sides of the fluorescent wheel 7 and the red LED light source 5 are sequentially provided with third collimating mirrors 71 and 51 and relay mirrors 42 and 41, a second filter F2 is arranged on the paths of the yellow light beam Y1 and the red spot-removing light beam R2, the yellow light beam Y1 can be reflected by a second filter F2 to be emitted to the rotary wheel 2, and the red spot-removing light beam R2 penetrates through the second filter F2 to be emitted to the rotary wheel 2.
The runner 2 is rotatably arranged on the paths of the blue laser beam B1, the red laser beam R1, the yellow beam Y1 and the red spot-removing beam R2, the runner 2 is provided with a reflecting region 23, a light combining region 21, a wavelength conversion region 22 and a filter region 24 which are arranged along the outline of the runner, the blue laser beam B1 is turned on in the time period when the laser light source 1 is opposite to the reflecting region 23, the wavelength conversion region 22 and the filter region 24, and the red laser beam R1 is turned on in the time period when the laser light source 1 is opposite to the light combining region 21.
The light combining area 21 is formed by coating a filter film on a glass substrate, so that the light combining area 21 can reflect a red laser beam R1 and allow a red spot-removing beam R2 which meets the penetration spectrum (waveband) of the red laser beam to penetrate through the light combining area, and the light filter area 24 is formed by coating a filter film on a glass substrate, so that the light filter area 24 can filter out the unnecessary waveband and allow the light beam which meets the waveband to penetrate through the light filter area.
The light guide assembly comprises a first collimating mirror 31, a second collimating mirror 32, a reflecting mirror RJ and a first optical filter F1, the first collimating mirror 31 and the second collimating mirror 32 are respectively arranged at two sides of the rotating wheel 2, a blue laser beam B1 sequentially penetrates through the first optical filter F1, the first collimating mirror 31 is eccentrically penetrated, the blue laser beam B1 is reflected by a reflecting area 23, the first collimating mirror 31 is eccentrically penetrated, the first optical filter F1 is penetrated, the blue laser beam B1 is reflected by the reflecting mirror RJ to guide the projection direction, and the blue laser beam B1 is directly used as a blue projection beam required by projection.
The red laser beam R1 sequentially penetrates through the first optical filter F1, eccentrically penetrates through the first collimating mirror 31, is reflected by the light combining area 21, eccentrically penetrates through the first collimating mirror 31, penetrates through the first optical filter F1 and is reflected by the reflecting mirror RJ to be guided to the projection direction; the red speckle removing light beam R2 sequentially penetrates through the second collimating mirror 32, penetrates through the light combining area 21, penetrates through the first collimating mirror 31 and is reflected by the first filter F1 and then guided to the projection direction, so that the red laser light beam R1 and the red speckle removing light beam R2 are combined into a red projection light beam.
The blue laser beam B1 excites the wavelength conversion region 22 to generate a green projection beam G, and the blue laser beam B1 sequentially penetrates through the first filter F1, penetrates through the first collimating mirror 31, excites the wavelength conversion region 22 to generate a green projection beam G, and the green projection beam G sequentially penetrates through the first collimating mirror 31 and is reflected by the first filter F1 to be guided to the projection direction.
The blue laser beam B1 can excite the fluorescent wheel 7 to generate a yellow laser beam Y, the blue laser beam B1 sequentially penetrates through the first filter F1, penetrates through the first collimating mirror 31, penetrates through the filter region 24 to generate a blue excitation beam B2, the blue excitation beam B2 penetrates through the second collimating mirror 32 and then is reflected by the second filter F2 to be guided to the fluorescent wheel 7, the fluorescent wheel 7 is provided with a yellow wavelength conversion material, the blue excitation beam B2 excites the wavelength conversion material to generate a yellow laser beam Y1, the yellow laser beam Y1 is sequentially reflected by the second filter F2, penetrates through the second collimating mirror 32, penetrates through the filter region 24 to filter out an unnecessary wavelength band to obtain a yellow projection beam Y2 in a required wavelength band, and the yellow projection beam Y2 penetrates through the first collimating mirror 31, is reflected by the first filter F1 and then is guided to a projection direction to be used as a yellow projection beam required for projection.
The red light required by projection is combined into a red projection light beam in the light combination area 21, and the red projection light beam contains a non-linearly polarized LED light beam, namely a spot-removing light beam, so that the problem of speckles of the laser light beam can be effectively solved, and in addition, the green light required by projection is generated by exciting a wavelength conversion material through the blue laser light beam B1, and the problem of speckles can not be caused.
The fourth collimating mirror 6 is arranged on a path in the projection direction, so that the blue projection beam, the red projection beam, the green projection beam and the yellow projection beam required by projection are condensed and enter the optical integration column and then enter the projection system.
Referring to fig. 3, another embodiment of the wheel 2 in the first embodiment can achieve the object of the present invention without changing the optical path diagram of the first embodiment, and specifically, the light combining area of the wheel 2 includes a circular filter area and a penetration area except the filter area, that is, the light combining area 21 includes a filter area 211 and a penetration area 212.
The filter region 211 can reflect the laser beam, the diameter of the spot 92 of the speckle removing beam is larger than that of the filter region 211, the width of the filter region 211 is slightly larger than that of the spot 91 of the laser beam, the penetration region 212 can be penetrated by the speckle removing beam, and the filter region 211 is formed by coating a filter film on the glass substrate, so that the filter region 211 can reflect the laser beam and penetrate the speckle removing beam which meets the penetration spectrum. Because the light spot 91 of the laser beam is far smaller than the light spot 92 of the spot-removing light beam, the width of the filter area 211 is slightly larger than the light spot 91 of the laser beam, and the light spot 91 of the laser beam and the light spot 92 of the spot-removing light beam are concentrically arranged, most of the spot-removing light beam completely passes through the penetration area 212 and cannot be attenuated, and the small spot-removing light beam passes through the filter area 211, the filter area 211 can enable the spot-removing light beam which accords with the penetration spectrum to penetrate through, only a small part of the spot-removing light beam is attenuated, and because the width of the filter area 211 is small, the filter area 211 can also be set to prevent the spot-removing light beam from penetrating through, and not too much spot-removing light beam from being blocked.
In a second embodiment, referring to fig. 4 and 5, a light source for projection includes: the device comprises a laser light source 1, a spot-removing light source, a rotating wheel 2, a fluorescent wheel 7, a light guide assembly, a second optical filter F2 and a fourth collimating mirror 6.
The laser light source 1 can generate a blue laser beam B1 and a red laser beam R1 which do not work simultaneously, and the spot-removing light source comprises a red LED light source 5 which is used for generating a red spot-removing light beam R2 which is non-linearly polarized. The light-emitting side of the red LED light source 5 is sequentially provided with a third collimating mirror 51 and a relay mirror 41, a second filter F2 is arranged on the path of the red speckle removing light beam R2, and the red speckle removing light beam R2 penetrates through the second filter F2 and then emits to the rotating wheel.
The runner 2 is rotatably arranged on the paths of the blue laser beam B1, the red laser beam R1 and the red spot-removing beam R2, the runner 2 is provided with a reflecting area 23, a light combining area 21 and a filter area 22 which are arranged along the outline of the runner 2, the blue laser beam B1 is opened in the time period that the laser light source 1 is opposite to the reflecting area 23 and the filter area 22, and the red laser beam R1 is opened in the time period that the laser light source 1 is opposite to the light combining area 21.
The light combining area 21 is formed by coating a filter film on a glass substrate, so that the light combining area 21 can reflect the red laser beam R1 and can be penetrated by the red spot-removing beam R2 which accords with the penetrating spectrum of the red laser beam, and the filter area 22 is formed by coating the filter film on the glass substrate, so that the filter area 22 can filter out the unnecessary wave band and ensure that the light beam which accords with the wave band can penetrate.
The reflective region 23 can reflect the blue laser beam B1 and direct the blue laser beam B1 to the projection direction, and the filter region 22 can allow the blue laser beam B1 to penetrate through to generate the blue excitation beam B2. The blue excitation light beam B2 is directed to the luminescent wheel 7, the luminescent wheel 7 is provided with a monochromatic wavelength conversion material, and the blue excitation light beam B2 excites the wavelength conversion material to produce a green light beam G1 and is directed in the projection direction.
The light guide assembly comprises a first collimating mirror 31, a second collimating mirror 32, a reflecting mirror RJ and a first optical filter F1, the first collimating mirror 31 and the second collimating mirror 32 are respectively arranged at two sides of the rotating wheel 2, when a blue laser beam B1 is right opposite to the reflecting area 23, the blue laser beam B1 sequentially penetrates through the first optical filter F1, eccentrically penetrates through the first collimating mirror 31, is reflected by the reflecting area 23, eccentrically penetrates through the first collimating mirror 31, penetrates through the first optical filter F1, is reflected by the reflecting mirror RJ to guide the projection direction, and the blue laser beam B1 is directly used as a blue projection beam required by projection.
The red laser beam R1 sequentially penetrates through the first optical filter F1, eccentrically penetrates through the first collimating mirror 31, is reflected by the light combining area 21, eccentrically penetrates through the first collimating mirror 31, penetrates through the first optical filter F1 and is reflected by the reflecting mirror RJ to be guided to the projection direction; the red speckle removing light beam R2 sequentially penetrates through the second collimating mirror 32, penetrates through the light combining area 21, penetrates through the first collimating mirror 31 and is reflected by the first filter F1 and then guided to the projection direction, so that the red laser light beam R1 and the red speckle removing light beam R2 are combined into a red projection light beam.
The blue excitation light beam B2 can excite the wavelength conversion material of the fluorescent wheel 7 to generate a green light beam G1, the light-emitting side of the fluorescent wheel 7 is sequentially provided with a third collimating mirror 71 and a relay mirror 42, the specific blue laser light beam B1 sequentially penetrates through the first filter F1, penetrates through the first collimating mirror 31 and penetrates through the filter region 22 to generate a blue excitation light beam B2, the blue excitation light beam B2 sequentially penetrates through the second collimating mirror 32 and is reflected by the second filter F2 and guided to the fluorescent wheel 7, the blue excitation light beam B2 excites the wavelength conversion material of the fluorescent wheel to generate a green light beam G1, the green light beam G1 is sequentially reflected by the second filter F2, penetrates through the second collimating mirror 32 and penetrates through the filter region 22 to filter out unwanted wavelength bands to obtain a green projection light beam G2 in a desired wavelength band, and the green projection light beam G2 penetrates through the first collimating mirror 31 and is reflected by the first filter F1 and then guided to the projection direction.
The fourth collimating mirror 6 is arranged on a path in the projection direction, so that the blue projection beam, the red projection beam and the green projection beam required by projection are condensed and enter the optical integration column and then enter the projection system.
Referring to fig. 6, in another embodiment of the wheel 2 in the second embodiment, the object of the present invention can be achieved without changing the optical path diagram of the second embodiment, specifically, the light combining area 21 of the wheel 2 includes a circular filter area 211 and a transmissive area 212 except for the filter area 211, and the structure, function and effect of the filter area 211 and the transmissive area 212 can be referred to the description of the first embodiment.
In a third embodiment, referring to fig. 1 and 2, a light source for projection includes: the device comprises a laser light source 1, a rotating wheel 2, a light guide assembly, a fourth collimating mirror 6 and a fluorescent wheel 7.
The laser light source 1 can generate a blue laser beam B1, and the fluorescent wheel 7 can be excited by the blue laser beam B1 to generate a yellow light beam Y1.
The wheel 2 is rotatably disposed in the path of the blue laser beam B1 and the yellow laser beam Y1, and the wheel 2 has a reflection region 23, a first filter region 21, a second filter region 22, and a penetration region 24 arranged along the contour thereof. The first filter area 21 and the second filter area 22 are formed by coating filter films on a glass substrate, so that the first filter area 21 and the second filter area 22 can filter out unwanted wave bands and enable light beams in accordance with the wave bands to penetrate through.
The light guide assembly comprises a first collimating mirror 31, a second collimating mirror 32, a reflecting mirror RJ and a first optical filter F1, wherein the first collimating mirror 31 and the second collimating mirror 32 are respectively arranged at two sides of the rotating wheel 2, when a blue laser beam B1 is right opposite to the reflecting area 23, the blue laser beam B1 sequentially penetrates through the first optical filter F1, eccentrically penetrates through the first collimating mirror 31, is reflected by the reflecting area 23, eccentrically penetrates through the first collimating mirror 31, penetrates through the first optical filter F1, is reflected by the reflecting mirror RJ to guide the projection direction, and the blue laser beam B1 is directly used as a blue projection beam required by projection.
When the blue laser beam B1 is directly opposite to the first filter region 21, the blue laser beam B1 sequentially penetrates through the first filter F1, penetrates through the first collimating mirror 31, penetrates through the first filter region 21 to generate a blue excitation beam B2, the blue excitation beam B2 penetrates through the second collimating mirror and then is guided to the fluorescent wheel 7, the wavelength conversion material of the fluorescent wheel 7 is excited to generate a yellow beam Y1, the yellow beam Y1 sequentially penetrates through the second collimating mirror 32, penetrates through the first filter region 22 to filter out an unnecessary wavelength band (green light) to obtain a red projection beam R in a required wavelength band, and the red projection beam R penetrates through the first collimating mirror 31, is reflected by the first filter F1 and then is guided to the projection direction.
The light-emitting side of the fluorescent wheel 7 is sequentially provided with a third collimating mirror 71 and a relay mirror 41, when the blue laser beam B1 is directly opposite to the second filter region 22, the blue laser beam B1 sequentially penetrates through the first filter F1, penetrates through the first collimating mirror 31, penetrates through the second filter region 22 to generate a blue excitation beam B2, the blue excitation beam B2 penetrates through the second collimating mirror and then is guided to the fluorescent wheel 7, the wavelength conversion material of the fluorescent wheel 7 is excited to generate a yellow beam Y1, the yellow beam Y1 sequentially penetrates through the second collimating mirror 32, penetrates through the second filter region 22 to filter out an unnecessary wavelength band (red light) to obtain a green projection beam G in a required wavelength band, and the green projection beam G penetrates through the first collimating mirror 31, is reflected by the first filter F1 and then is guided to the projection direction.
When the blue laser beam B1 is directly opposite to the transmissive region 24, the blue laser beam B1 sequentially penetrates through the first filter F1, penetrates through the first collimating mirror 31, penetrates through the transmissive region 24 to generate a blue excitation beam B2, the blue excitation beam B2 penetrates through the second collimating mirror and then is guided to the fluorescent wheel 7, the wavelength conversion material of the fluorescent wheel 7 is excited to generate a yellow beam Y1, the yellow beam Y1 sequentially penetrates through the second collimating mirror 32, penetrates through the transmissive region 24, penetrates through the first collimating mirror 31, is reflected by the first filter F1 and then is guided to the projection direction, and the yellow beam Y1 serves as a yellow projection beam required by projection.
The fourth collimating mirror 6 is arranged on a path in the projection direction, so that the blue projection beam, the red projection beam, the green projection beam and the yellow projection beam required by projection are condensed and enter the optical integration column and then enter the projection system.
The above description is only a preferred embodiment of the present invention, and therefore the scope of the present invention should not be limited thereby, and all equivalent changes and modifications made within the scope of the claims and the specification should be considered within the scope of the present invention.
Claims (13)
1. A light source for projection, comprising:
a laser light source for generating a laser beam;
the rotating wheel is rotatably arranged on the path of the laser beam and is provided with at least one filter area, and the laser beam can penetrate through the filter area;
and the fluorescent body can be excited by the laser beam penetrating through the filter area to generate a first light beam and guide the first light beam to the rotating wheel, and the first light beam penetrates through the filter area to filter out the unnecessary wave band so as to obtain a projection light beam of the required wave band and guide the projection light beam to a projection direction.
2. A light source for projection as claimed in claim 1, characterized in that: the filter regions are included, and the wave bands of projected light beams obtained by the first light beams penetrating through the filter regions are different.
3. A light source for projection as claimed in claim 2, characterized in that: the first light beam is yellow light and the projected light beam is green and/or red light.
4. A light source for projection as claimed in claim 2, characterized in that: the first light beam is white light and the projected light beam is green and/or red and/or blue light.
5. A light source for projection as claimed in claim 1, characterized in that: the first light beam is red light, green light, blue light or yellow light, and the corresponding projection light beam is red light, green light, blue light or yellow light with a required waveband.
6. A light source for projection as claimed in any one of claims 1 to 5, characterized in that: the fluorophor is a rotatable fluorescent wheel or an fluorophor of an LED light source or a ceramic fluorophor.
7. A light source for projection as claimed in any one of claims 1 to 5, characterized in that: the light guide assembly comprises a first collimating mirror and a second collimating mirror, the first collimating mirror and the second collimating mirror are respectively arranged at two sides of the rotating wheel, and the laser beam sequentially penetrates through the first collimating mirror, the filter area and the second collimating mirror and then is guided to the fluorescent body; the composite light beam penetrates through the second collimating mirror and the filter area in sequence to generate a projection light beam, and the projection light beam penetrates through the first collimating mirror and then is guided to a projection direction.
8. A light source for projection as claimed in claim 7, characterized in that: the light guide assembly also comprises a first light filter, and the laser beam sequentially penetrates through the first light filter, the first collimating mirror, the filter area and the second collimating mirror and then is guided to the fluorophor; the composite light beam sequentially penetrates through the second collimating mirror and the filter area to generate a projection light beam, and the projection light beam penetrates through the first collimating mirror and then is reflected by the first optical filter to be guided to the projection direction.
9. A light source for projection as claimed in claim 8, characterized in that: the light guide assembly further comprises a reflector, the rotating wheel is provided with a reflecting area, the reflecting area can reflect the laser beam to generate a third projection beam and guide the third projection beam to the projection direction, and the laser beam sequentially penetrates through the first light filter, eccentrically penetrates through the first collimating mirror, is reflected by the reflecting area, eccentrically penetrates through the first collimating mirror, penetrates through the first light filter and is reflected by the reflector to guide the projection direction.
10. A light source for projection as claimed in claim 8, characterized in that: the rotating wheel is provided with a light combining area, the laser beam can be reflected by the light combining area and guided to the projection direction, the spot removing beam can penetrate the light combining area and guided to the projection direction, and the spot removing beam and the laser beam have the same color to synthesize a fourth projection beam; the laser beam sequentially penetrates through the first optical filter, eccentrically penetrates through the first collimating mirror, is reflected by the light combining area, eccentrically penetrates through the first collimating mirror, penetrates through the first optical filter and is reflected by the reflecting mirror to be guided to the projection direction, and the spot removing beam sequentially penetrates through the second collimating mirror, penetrates through the light combining area, penetrates through the first collimating mirror and is reflected by the first optical filter and then is guided to the projection direction.
11. A light source for projection as claimed in claim 10, characterized in that: the laser light source can produce not simultaneous working and at least two of different colours laser beam, it is corresponding to separate the spot light source can produce not simultaneous working and at least two of different colours separate the spot light beam, it is corresponding the runner includes along its profile layout at least two it closes the light zone to the synthesis is not simultaneous working and at least two of different colours fourth project light beam.
12. A light source for projection as claimed in any one of claims 1 to 5, characterized in that: the rotating wheel is provided with a wavelength conversion area, the wavelength conversion area is provided with a wavelength conversion material, and the laser beam can excite the wavelength conversion area to generate a fifth projection beam and guide the fifth projection beam to the projection direction.
13. A light source for projection as claimed in any one of claims 1 to 5, characterized in that: the rotating wheel is provided with a penetration area, the laser beam penetration area is used for deenergizing the fluorescent body to generate a sixth projection beam, and the sixth projection beam penetrates through the penetration area and is guided to the projection direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921179075.5U CN210072303U (en) | 2019-07-25 | 2019-07-25 | Light source for projection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921179075.5U CN210072303U (en) | 2019-07-25 | 2019-07-25 | Light source for projection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210072303U true CN210072303U (en) | 2020-02-14 |
Family
ID=69429681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921179075.5U Withdrawn - After Issue CN210072303U (en) | 2019-07-25 | 2019-07-25 | Light source for projection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210072303U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110297384A (en) * | 2019-07-25 | 2019-10-01 | 吕素萍 | A kind of light source for projection |
| CN113495413A (en) * | 2020-03-20 | 2021-10-12 | 中强光电股份有限公司 | Illumination system and projection device |
-
2019
- 2019-07-25 CN CN201921179075.5U patent/CN210072303U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110297384A (en) * | 2019-07-25 | 2019-10-01 | 吕素萍 | A kind of light source for projection |
| CN113495413A (en) * | 2020-03-20 | 2021-10-12 | 中强光电股份有限公司 | Illumination system and projection device |
| US11448954B2 (en) | 2020-03-20 | 2022-09-20 | Coretronic Corporation | Illumination system and projection device |
| CN113495413B (en) * | 2020-03-20 | 2023-12-15 | 中强光电股份有限公司 | Illumination system and projection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6476667B2 (en) | Light source device and projector using the same | |
| KR101830753B1 (en) | Lighting Device and Projection Device | |
| KR102088741B1 (en) | Light-emitting device and projection system | |
| TWI437350B (en) | Illumination system and wavelength-transforming device thereof | |
| TWI540377B (en) | Optical wavelength converter and illumination system using same | |
| JP2016224304A (en) | Light source device, projection type display device and light generation method | |
| JP2003233123A (en) | Projector device | |
| CN102455512A (en) | Illumination device and projection device | |
| CN210072303U (en) | Light source for projection | |
| WO2021259037A1 (en) | Light source apparatus and projection display device | |
| CN110297384B (en) | Light source for projection | |
| CN209962078U (en) | Projection light source capable of solving laser speckle | |
| CN110471245A (en) | Light-source system, projection device and lighting apparatus | |
| CN104808273A (en) | Light source system and light wavelength converter suitable for system | |
| JP5541175B2 (en) | Light source device using fluorescent material | |
| TWI526770B (en) | Blue light mixing method and system using the same | |
| CN209962080U (en) | Speckle-dispelling mixed light source | |
| CN110244505B (en) | Speckle-dispelling mixed light source | |
| CN110361919B (en) | Three-color laser light source with composite color wheel | |
| CN210199481U (en) | Mixed light source | |
| CN210090899U (en) | Hybrid projection light source | |
| CN209962081U (en) | Light source of projector | |
| CN107728412B (en) | Light source device and related projection system | |
| CN210270496U (en) | Laser lighting system | |
| CN212298636U (en) | Laser light source device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200214 Effective date of abandoning: 20220607 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20200214 Effective date of abandoning: 20220607 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |