CN115903360A - Laser and LED mixed light source projection system - Google Patents

Abstract

The invention relates to the technical field of light source lighting systems, in particular to a laser and LED mixed light source projection system, which comprises an LED component, a laser component, a light combination component and a first spectroscope, wherein the LED component is used for emitting a first light beam, a second light beam and a third light beam; the first light beam irradiates to the light combination component, the second light beam irradiates to the light combination component after passing through the first spectroscope, the third light beam irradiates to the light combination component after passing through the first spectroscope, the light beam of the laser emission part irradiates to the light combination component after passing through the segmented filter wheel, and the light combination component is used for combining the first light beam, the second light beam, the third light beam and the laser light beam. The brightness of the light source projection system can be improved by combining light, and meanwhile, the LED and the laser are combined to output combined light, so that the production and manufacturing cost can be effectively reduced, and the problem that the brightness and the cost of the light source system in the related technology are difficult to take into account is solved.

Description

Laser and LED mixed light source projection system

Technical Field

The invention relates to the technical field of light source illumination systems, in particular to a light source projection system with laser and LED mixed.

Background

With the development of light source technology, the brightness requirement of the light source cannot be met by using a single light emitting source. Especially, after Light Emitting Diodes (LEDs) and semiconductor Lasers (LDs) are gradually introduced into the lighting and display market, high power Light sources have generally adopted a plurality of Light sources arranged in an array to ensure the brightness of the Light sources. That is, the light source adopts a LED array or an LD array, and the light from these light sources is output as the high power of the light source after the light combination processing.

In practical use, however, if the LED is used only, although the cost is low, the LED has low brightness generated by the LED, so that the LED is suitable for a few scenes and cannot meet the requirement of multi-scene light source display; however, if the semiconductor laser array is used alone, although the brightness is sufficient, the cost of the semiconductor laser array is higher than that of the LED, which results in high manufacturing cost. Namely, the light source system in the related art has a drawback that it is difficult to achieve both brightness and cost.

Disclosure of Invention

Therefore, the invention provides a light source projection system with a mixture of laser and LED in order to improve the problem that the light source system in the related art cannot achieve both brightness and cost.

A laser and LED mixed light source projection system comprises an LED component, a laser component and a light combination component;

the LED component comprises a first light source part for emitting a first light beam, a second light source part for emitting a second light beam and a third light source part for emitting a third light beam, the first light beam and the second light beam have the same direction and are parallel to each other, the third light beam is perpendicular to the first light beam and the second light beam and emits to the first light beam and the second light beam, and a first beam splitter is arranged at the intersection of the second light beam and the third light beam;

the laser assembly is positioned on one side of the third light source part, which is far away from the first light source part and the second light source part, and comprises a laser emitting part capable of emitting red, green or blue laser beams and an optical wheel part arranged on a beam path of the laser assembly;

the light combination component comprises a light combination mirror for combining the first light beam, the second light beam, the third light beam and the laser light beam, and the light combination mirror is arranged at the intersection of the first light source and the third light source;

the first light beam is emitted to the light combining mirror, the second light beam is emitted to the light combining mirror after passing through the first light splitting mirror, the third light beam is emitted to the light combining mirror after passing through the first light splitting mirror, and the light beam of the laser emitting piece is emitted to the light combining mirror after passing through the optical wheel piece.

Furthermore, the third light source device includes a third light source module and a third collecting lens, the third light source module includes a blue light chip, green phosphor is coated on the surface of the blue light chip, and the third collecting lens is located between the third light source module and the first spectroscope.

Furthermore, the laser emitting piece is positioned on one side of the light combining mirror, which is far away from the first light source piece, and is opposite to the first light source piece, the optical wheel piece is a scattering wheel, a first lens is arranged between the laser emitting piece and the light combining mirror, and laser beams pass through the scattering wheel and the lens and then are emitted to the light combining mirror.

Furthermore, the LED assembly further includes a fourth light source device for emitting a fourth light beam, the fourth light source device is located on a side of the first beam splitter away from the second light source device and is opposite to the second light source device, the fourth light source device includes a fourth light source module and a fourth collecting lens, the fourth light source module is a blue LED, and the fourth light beam passes through the first beam splitter and then is emitted to the third light source module to excite a green light of the third light source module.

Furthermore, the laser emitting component is located on one side of the first light splitting mirror, which is far away from the second light source component, and is opposite to the second light source component, the optical wheel component is a segmented filter wheel, a laser fly eye is arranged between the laser emitting component and the first light splitting mirror, and blue light of a laser beam passes through the segmented filter wheel and the laser fly eye, then is emitted to the first light splitting mirror, and then is emitted to the third light source module to excite green light of the third light source module.

Furthermore, the laser component further comprises a second beam splitter and a second lens, the second beam splitter is located on one side of the light combining mirror, which is far away from the first light source, and is opposite to the first light source, the second lens is located between the second beam splitter and the light combining mirror, and red light and green light of laser beams are reflected by the segmented filter wheel and then emitted to the second beam splitter first, and then emitted to the light combining mirror through the second lens.

Furthermore, the light combining mirror comprises a light splitting piece and a light splitting strip arranged on the light splitting piece, a through hole is formed in the light splitting piece, and the light splitting strip penetrates through the through hole of the light splitting piece and is embedded in the through hole of the light splitting piece and fixedly connected with the light splitting piece.

Further, the first light source device includes a first light source module and a first collecting lens, the first light source module is a blue LED, and the first collecting lens is located between the first light source module and the light combiner.

Furthermore, the second light source device includes a second light source module and a second collecting lens, the second light source module is a red LED, and the second collecting lens is located between the second light source module and the first spectroscope.

Furthermore, the light combining component further comprises a light uniformizing device arranged on one side, far away from the third light source, of the light combining mirror, and the light uniformizing device comprises a compound eye or a square rod.

Compared with the prior art, the technical scheme of the invention has the following advantages:

1. the utility model provides a mixed light source projection system of laser and LED, set up the LED subassembly, laser subassembly and close the optical subassembly, utilize the first light beam of LED subassembly transmission, second light beam and third light beam to penetrate into to close the optical subassembly, utilize the laser subassembly to transmit red, green or blue laser beam, the laser beam that the laser subassembly transmitted can penetrate into to close the optical subassembly after the optics wheel spare and carry out the beam combination with first light beam, second light beam and third light beam and then export, thereby improve the luminance of light source projection system, use LED and laser combination to close the optical output simultaneously can effectively reduce production manufacturing cost, improve the problem that light source system is difficult to compromise luminance and cost in the correlation technique;

2. according to the laser and LED mixed light source projection system, the fourth light source component can be arranged to emit blue light beams, and the blue light beams are emitted to the third light source module of the third light source component through the first beam splitter and converted into green fluorescent light beams, so that the brightness is further improved;

3. the utility model provides a light source projection system that laser and LED mix can filter laser assembly's green glow through the mode that sets up segmentation filter wheel for laser assembly's green laser beam converts green fluorescence light beam into to the third light source module of third light source spare behind first beam splitter, thereby further promotes luminance, makes the light source projection system compact structure of this application, reduces manufacturing cost when further guaranteeing luminance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic diagram of a light source projection system with a combination of laser and LED according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a light combining mirror in a laser and LED hybrid light source projection system according to the present invention;

FIG. 3 is a schematic diagram of an embodiment of a laser and LED hybrid light source projection system according to the present application, in which a square bar is used for light homogenization;

FIG. 4 is a timing diagram of a first embodiment of a hybrid laser and LED light source projection system according to the present disclosure;

FIG. 5 is a schematic diagram of a second embodiment of a laser and LED hybrid light source projection system according to the present disclosure;

FIG. 6 is a timing diagram of a second embodiment of a laser and LED hybrid light source projection system according to the present disclosure;

FIG. 7 is a schematic diagram of a third embodiment of a laser and LED hybrid light source projection system according to the present disclosure;

fig. 8 is a timing diagram of a third embodiment of a laser and LED hybrid light source projection system according to the present invention.

Description of the reference numerals:

1. an LED assembly; 11. a first light source element; 111. a first light source module; 112. a first collection lens; 12. a second light source element; 121. a second light source module; 122. a second collecting lens; 13. a third light source element; 131. a third light source module; 132. a third collecting lens; 14. a fourth light source element; 141. a fourth light source module; 142. a fourth collecting lens; 2. a first beam splitter; 3. a laser assembly; 31. a laser emitting member; 32. an optical wheel; 33. a first lens; 34. laser compound eye; 35. a second spectroscope; 36. a second lens; 4. a light combining component; 41. a light combining mirror; 411. a light splitting piece; 412. a light-splitting bar; 4121. a reflective film layer; 42. and (4) a light homogenizing device.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Furthermore, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The first embodiment is as follows:

referring to fig. 1, a light source projection system with a combination of laser and LED includes an LED assembly 1, a laser assembly 3, and a light combining assembly 4. The LED assembly 1 comprises a first light source element 11 for emitting a first light beam, a second light source element 12 for emitting a second light beam and a third light source element 13 for emitting a third light beam. The first light beam and the second light beam have the same direction and are parallel to each other, the third light beam is perpendicular to the first light beam and the second light beam and emits to the first light beam and the second light beam, and a first beam splitter 2 is arranged at the intersection of the second light beam and the third light beam.

The laser assembly 3 is located on a side of the third light source element 13 away from the first light source element 11 and the second light source element 12, and the laser assembly 3 includes a laser emitting element 31 that can emit a laser beam of red, green, or blue, and an optical wheel element 32 that is disposed on a beam path of the laser assembly 3. The light combining component 4 includes a light combining mirror 41 for combining the first light beam, the second light beam, the third light beam and the laser light beam, and the light combining mirror 41 is disposed at the intersection of the first light source and the third light source. The first light beam is emitted to the light combining mirror 41, the second light beam is emitted to the light combining mirror 41 after passing through the first light splitting mirror 2, the third light beam is emitted to the light combining mirror 41 after passing through the first light splitting mirror 2, and the light beam of the laser emitting part 31 is emitted to the light combining mirror 41 after passing through the segmented filter wheel.

Specifically, the first light source device 11 includes a first light source module 111 and a first collecting lens 112, the first light source module 111 is a blue LED, that is, the first light beam is blue light, the first collecting lens 112 is located between the first light source module 111 and the light combining lens 41 of the light combining component 4, and when the first light source module 111 emits the first light beam, the first light beam passes through the first collecting lens 112 and then is emitted to the light combining lens 41.

Similarly, the second light source 12 includes a second light source module 121 and a second collecting lens 122, the second light source module 121 is a red LED, that is, the second light beam is a red light, the second collecting lens 122 is located between the second light source module 121 and the first beam splitter 2, when the second light source module 121 emits the second light beam, the second light beam passes through the second collecting lens 122 and then is emitted to the first beam splitter 2, and the first beam splitter 2 reflects the second light beam to the light combining mirror 41.

The third light source 13 includes a third light source module 131 and a third collecting lens 132, and it should be noted that the third light source module 131 includes a blue light chip, the surface of the blue light chip is coated with green phosphor, and when the blue light chip emits the third light beam, the third light beam can be emitted to the green phosphor on the surface of the blue light chip and then converted into a green phosphor. The third collecting lens 132 is located between the third light source module 131 and the first beam splitter 2, and when the third light source module 131 emits the third light beam, the third light beam passes through the third collecting lens 132 and then is emitted to the first beam splitter 2, and the third light beam passes through the third beam splitter and then is emitted to the light combiner 41.

In this embodiment, the laser emitting element 31 is located on a side of the light combining mirror 41 away from the first light source element 11 and opposite to the first light source element 11, meanwhile, the optical wheel element 32 is a scattering wheel, a first lens 33 is disposed between the laser emitting element 31 and the light combining mirror 41, and the laser beam passes through the scattering wheel and the lens and then is emitted to the light combining mirror 41. It should be noted that the laser emitting member 31 may emit one, any combination of two or all of the red, green or blue laser beams.

Referring to fig. 2, the light combining mirror 41 is used for combining the first light beam, the second light beam, the third light beam, the fourth light beam and the laser light beam, and includes a light splitting sheet 411 and a light splitting bar 412 installed on the light splitting sheet 411. Specifically, referring to the upper side of fig. 2, which is a structural schematic diagram of the light combiner 41, the light splitting sheet 411 is a flat cuboid, a through hole is formed in the middle of the light splitting sheet 411, the cross section of the through hole is rectangular to fit the light splitting strip 412, the light splitting strip 412 is inserted and embedded in the through hole of the light splitting sheet 411, the light splitting strip 412 is fixedly connected with the light splitting sheet 411, the included angle between the light splitting strip 412 and the light splitting sheet 411 is 90 °, and a reflective film layer 4121 is plated in the middle area of the light splitting strip 412. Referring to the lower portion of fig. 2, which is a schematic view of the light combiner 41, after the laser beam is emitted to the light combiner 41, the laser beam passes through the through hole of the light splitting plate 411 and is emitted to the reflective film 4121 of the light splitting bar 412, and then the reflective film 4121 reflects the laser beam. A relay lens is provided between the light combining mirror 41 and the first beam splitter 2.

Referring to fig. 1 and 3, in addition, the light combining assembly 4 further includes a light uniformizing device 42 disposed on a side of the light combining mirror 41 away from the third light source 13, where the light uniformizing device 42 includes a compound eye or a square rod, and in practical applications, it is only necessary to select the compound eye or the square rod as needed, and when the square rod is selected for light uniformizing, a lens needs to be added between the square rod and the light combining assembly 4.

Referring to fig. 4, when the light source projection system is used, the first light source device 11, the second light source device 12 and the third light source device 13 are turned on according to the variation of the system timing sequence, the system timing sequence is switched among the blue segment, the red segment and the green segment, the system timing sequence period corresponds to the frame rate of the display, which is 1/60 second when the display frame rate is 60 frames, and is 1/144 second when the display frame rate is 144 frames.

When the system timing sequence is in the blue segment, the second light source device 12 and the third light source device 13 are turned off, the first light source module 111 is turned on to emit a first light beam, the first light beam is emitted to the light splitting sheet 411 of the light combining mirror 41 as the primary color blue, the laser emitting device 31 emits a blue laser beam, the blue laser beam passes through the scattering wheel and the first lens 33 and then is emitted to the reflective film layer 4121 in the middle of the light splitting strip 412 of the light combining mirror 41, and the blue laser beam is emitted to the light homogenizing device 42 for light homogenizing and outputting after being combined with the first light beam as the primary color blue as the supplemental primary color.

When the system timing sequence is in the red segment, the first light source device 11 and the third light source device 13 are turned off, the second light source module 121 is turned on to emit a second light beam, the second light beam is emitted to the first beam splitter 2, and the first beam splitter 2 reflects the second light beam and emits the reflected second light beam to the light splitting sheet 411 of the light combiner 41 as the primary color red. Meanwhile, the laser emitting device 31 emits a red laser beam, the red laser beam passes through the scattering wheel and the first lens 33 and then is emitted to the reflective film 4121 in the middle of the light splitting strip 412 of the light combining mirror 41, and the red laser beam serving as the complementary primary color and the second beam serving as the red primary color are combined and then emitted to the dodging device 42.

When the system timing sequence is in the green period, the first light source and the second light source are turned off, the third light source module 131 is turned on to emit a third light beam, the third light beam is emitted to the first beam splitter 2 through the third lens, and the third light beam is emitted to the light splitting sheet 411 of the light combiner 41 as a primary color green after passing through the first beam splitter 2. Meanwhile, the laser emitting device 31 emits a green laser beam, the green laser beam passes through the scattering wheel and the first lens 33 and then is emitted to the reflective film 4121 in the middle of the light splitting strip 412 of the light combining mirror 41, and the green laser beam serving as the complementary primary color and the third beam serving as the green primary color are combined and then emitted to the light uniformizing device 42.

Through setting up LED subassembly 1 and laser subassembly 3 like this, utilize and close optical assembly 4 and close the back output of light to LED subassembly 1 and laser subassembly 3, can guarantee the light source luminance that light source projection system exported, utilize the scattering wheel to the characteristics that light source stability requires not high for LED subassembly 1 and laser subassembly 3 combine can effectively reduce light source projection system's production and manufacturing cost.

The second embodiment:

referring to fig. 5 and 6, the present embodiment is different from the first embodiment in that: the LED assembly 1 further comprises a fourth light source element 14.

Specifically, in order to further improve the output brightness of the light source projection system, the LED assembly 1 further includes a fourth light source 14 for emitting a fourth light beam, the fourth light source 14 is located on a side of the first beam splitter 2 away from the second light source 12 and opposite to the second light source 12, the fourth light source 14 includes a fourth light source module 141 and a fourth collecting lens 142, the fourth light source module 141 is a deep blue LED, that is, the fourth light beam is deep blue light, the fourth light beam passes through the fourth collecting lens 142 and then is emitted to the first beam splitter 2, the fourth light beam is reflected by the first beam splitter 2 and then is emitted to the third light source module 131, and when the fourth light beam is emitted to a housing of the third light source module 131 coated with green phosphor, the fourth light beam is converted from the deep blue light beam into a green phosphor light beam.

By providing the fourth light source device 14, when the system timing is in the green period, the first light source and the second light source are turned off, the third light source module 131 is turned on to emit the third light beam as the primary color green, and the fourth light source module 141 also emits the fourth light beam to be converted into the green fluorescent light beam on the third light source module 131 as the supplementary primary color different from the laser emitting device 31. That is, the laser emitting device 31 emits a green laser beam, and the green laser beam is emitted to the dodging device 42 after being combined as the complementary primary color, the third beam as the green primary color and the fourth beam as another complementary primary color, so as to further improve the output brightness of the light source projection system. It should be noted that, in practical applications, the fourth light source 14 is not necessary, and the fourth light source 14 may be added or omitted as needed.

Example three:

referring to fig. 7 and 8, the present embodiment is different from the first embodiment in that: the position of the laser emitting member 31 is different while using the laser emitting member 31 as a component for exciting green light of the third light source.

Specifically, the laser emitting component 31 is located on one side of the first beam splitter 2 away from the second light source component 12 and opposite to the second light source component 12, in this embodiment, the optical wheel component 32 is a segmented filter wheel, which is also called a filter color wheel, and has a structure that a glass circular disk is coated with a light splitting film so as to have a blue light reflecting segment, a red light reflecting segment and a green light reflecting region penetrating through the blue light segment, and the segmented filter wheel is rotated to switch the regions of the segmented filter wheel. A laser fly eye 34 is arranged between the laser emitting element 31 and the first spectroscope 2, and the blue light of the laser beam passes through the transmission segment of the segmented filter wheel and the laser fly eye 34 and then is emitted to the first spectroscope 2, and then is emitted to the third light source module 131 to excite the green light of the third light source module 131.

The laser assembly 3 further includes a second beam splitter 35 and a second lens 36, the second beam splitter 35 is located on one side of the beam combiner 41 away from the first light source and opposite to the first light source, and the second lens 36 is located between the second beam splitter 35 and the beam combiner 41. The red light and the green light of the laser beam are reflected by the reflection segments of the segmented filter wheel and then emitted to the second beam splitter 35, and finally emitted to the beam combiner 41 through the second lens 36.

When the system timing sequence is in the blue segment, the second light source device 12 and the third light source device 13 are turned off, the first light source module 111 is turned on to emit the first light beam, and the first light beam is emitted to the light splitting sheet 411 of the light combining mirror 41 as the primary color blue. Meanwhile, the laser emitting component 31 emits a blue laser beam, the segmented filter wheel is rotated to the blue light reflecting segment, the blue laser beam is reflected by the segmented filter wheel reflecting segment and then emitted to the second beam splitter 35, the blue laser is reflected by the second beam splitter 35 and then emitted to the reflecting film layer 4121 of the light splitting sheet 411 in the light combiner 41, and the blue laser beam is emitted to the light homogenizing device 42 for light homogenizing and outputting after being combined with the first beam serving as the primary color of blue.

When the system timing sequence is in the red segment, the first light source device 11 and the third light source device 13 are turned off, the second light source module 121 is turned on to emit a second light beam, the second light beam is emitted to the first beam splitter 2, and the first beam splitter 2 reflects the second light beam and emits the reflected second light beam to the light splitting sheet 411 of the light combiner 41 as the primary color red. Meanwhile, the laser emitting component 31 emits a red laser beam, the segmented filter wheel is rotated to the red light reflecting segment, after the red laser beam is reflected by the segmented filter wheel reflecting segment, the red laser beam is reflected by the second spectroscope 35 and then emitted to the reflecting film layer 4121 of the light splitting sheet 411 in the light combining mirror 41, and the red laser beam is emitted to the dodging device 42 after being combined with the second beam serving as the red primary color as the supplementary primary color.

When the system timing sequence is in the green period, the first light source and the second light source are turned off, the third light source module 131 is turned on to emit a third light beam, the third light beam is emitted to the first beam splitter 2 through the third lens, and the third light beam is emitted to the light splitting sheet 411 of the light combiner 41 as the primary color green after passing through the first beam splitter 2. Meanwhile, the laser emitting device 31 emits a green laser beam and a blue laser beam simultaneously, at this time, the segmented filter wheel rotates to reflect the green light and transmit the blue light segment, the green laser beam is reflected to the second beam splitter 35 by the segmented filter wheel, the second beam splitter 35 reflects the green laser beam to the light splitting strip 412 of the light combining mirror 41, the blue laser beam transmits the segmented filter wheel and the laser fly eye 34 and then transmits to the first beam splitter 2, the first beam splitter 2 reflects the green laser beam to the third light source module 131 and converts the green laser beam into a green fluorescent beam, and the green fluorescent beam serves as a complementary primary color, combines with the third beam serving as the green primary color and the green laser beam and transmits to the dodging device 42.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims (10)

1. A laser and LED mixed light source projection system is characterized by comprising an LED component (1), a laser component (3) and a light combination component (4);

the LED component (1) comprises a first light source part (11) for emitting a first light beam, a second light source part (12) for emitting a second light beam and a third light source part (13) for emitting a third light beam, wherein the first light beam and the second light beam have the same direction and are parallel to each other, the third light beam is perpendicular to the first light beam and the second light beam and is emitted to the first light beam and the second light beam, and a first beam splitter (2) is arranged at the intersection of the second light beam and the third light beam;

the laser assembly (3) is positioned on one side of the third light source piece (13) far away from the first light source piece (11) and the second light source piece (12), and the laser assembly (3) comprises a laser emitting piece (31) capable of emitting a red, green or blue laser beam and an optical wheel piece (32) arranged on a beam path of the laser assembly (3);

the light combination component (4) comprises a light combination mirror (41) for combining the first light beam, the second light beam, the third light beam and the laser light beam, and the light combination mirror (41) is arranged at the intersection of the first light source and the third light source;

the first light beam is emitted to the light-combining mirror (41), the second light beam is emitted to the light-combining mirror (41) after passing through the first light-splitting mirror (2), the third light beam is emitted to the light-combining mirror (41) after passing through the first light-splitting mirror (2), and the light beam of the laser emitting part (31) is emitted to the light-combining mirror (41) after passing through the optical wheel part (32).

2. A laser and LED mixed light source projection system as claimed in claim 1, wherein said third light source unit (13) comprises a third light source module (131) and a third collecting lens (132), said third light source module (131) comprises a blue light chip, said blue light chip is coated with green phosphor, said third collecting lens (132) is located between said third light source module (131) and said first beam splitter (2).

3. The projection system of claim 2, wherein the laser emitter (31) is located on a side of the light combining mirror (41) away from the first light source (11) and opposite to the first light source (11), the optical wheel (32) is a scattering wheel, a first lens (33) is disposed between the laser emitter (31) and the light combining mirror (41), and the laser beam passes through the scattering wheel and the lens and then is directed to the light combining mirror (41).

4. A laser and LED mixed light source projection system as claimed in claim 3, wherein the LED assembly (1) further includes a fourth light source element (14) for emitting a fourth light beam, the fourth light source element (14) is located on a side of the first beam splitter (2) away from the second light source element (12) and opposite to the second light source element (12), the fourth light source element (14) includes a fourth light source module (141) and a fourth collecting lens (142), the fourth light source module (141) is a blue LED, and the fourth light beam passes through the first beam splitter (2) and then is emitted to the third light source module (131) to excite a green light of the third light source module (131).

5. The system of claim 2, wherein the laser emitter (31) is located on a side of the first light splitting mirror (2) away from the second light source (12) and opposite to the second light source (12), the optical wheel member (32) is a segmented filter wheel, a laser fly-eye (34) is disposed between the laser emitter (31) and the first light splitting mirror (2), and blue light of the laser beam is emitted to the first light splitting mirror (2) after passing through the segmented filter wheel and the laser fly-eye (34) and then emitted to the third light source module (131) to excite green light of the third light source module (131).

6. The system of claim 5, wherein the laser assembly (3) further comprises a second beam splitter (35) and a second lens (36), the second beam splitter (35) is located on a side of the light combiner (41) away from the first light source and opposite to the first light source, the second lens (36) is located between the second beam splitter (35) and the light combiner (41), and the red light and the green light of the laser beam are reflected by the segmented filter wheel, then emitted to the second beam splitter (35) and then emitted to the light combiner (41) through the second lens (36).

7. The projection system with a mixed laser and LED light source as claimed in any one of claims 1 to 6, wherein the light combiner (41) includes a light splitter (411) and a light splitting bar (412) mounted on the light splitter (411), the light splitter (411) has a through hole, and the light splitting bar (412) is inserted into and engaged with the through hole of the light splitter (411) and is fixedly connected to the light splitter (411).

8. A laser and LED hybrid light source projection system as claimed in claim 7, wherein the first light source device (11) comprises a first light source module (111) and a first collecting lens (112), the first light source module (111) is a blue LED, and the first collecting lens (112) is located between the first light source module (111) and the light combining mirror (41).

9. A laser and LED hybrid light source projection system as claimed in claim 8, wherein said second light source unit (12) comprises a second light source module (121) and a second collecting lens (122), said second light source module (121) is a red LED, and said second collecting lens (122) is located between said second light source module (121) and said first beam splitter (2).

10. A laser and LED hybrid light source projection system as claimed in claim 9, wherein said light combining component (4) further comprises a light uniformizing device (42) disposed on a side of said light combining mirror (41) far from said third light source element (13), said light uniformizing device (42) comprising a compound eye or a square rod.

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