CN218997347U - Blue light-to-white light laser module easy to dissipate heat - Google Patents

Abstract

The utility model relates to a light source and the field of illumination disclose an easy radiating blue light changes white light laser module, and it includes inside hollow heat dissipation shell, and heat dissipation shell has transmitting end and exit end, and the direction of the directional exit end of transmitting end is the light-emitting direction, has set gradually the circuit board support along the light-emitting direction in the transmitting end, installs circuit board and laser emission spare on the circuit board support, has set gradually the collimation piece and is used for installing the first pillar of optical part along the light-emitting direction in the exit end. In this application laser emission spare and heat dissipation bottom plate pass through heat conduction welding flux welding, and heat dissipation bottom plate and heat dissipation shell pass through heat conduction welding flux welding. The first support column is in threaded connection with the emergent end, and the collimating support column is in threaded connection with the emergent end. The heat dissipation structure of the emission end and the emission end is improved, and heat generated in the heat dissipation shell can be directly transferred to the heat dissipation shell. The problem of the luminous efficiency decline of laser module because of laser module radiating efficiency is low has been improved.

Description

Blue light-to-white light laser module easy to dissipate heat

Technical Field

The application relates to the field of light sources and illumination, in particular to a blue light-to-white light laser module easy to dissipate heat.

Background

The visible light laser illumination comprises blue light excitation fluorescent powder to realize white light illumination, and the laser illumination is widely applied to the fields of automobile illumination, flashlight illumination, stage illumination, industrial illumination and the like.

In some related technologies, a laser lighting device includes a heat dissipation case, in which a laser emitting member and a plurality of optical components are sequentially installed along a light emitting direction, in which a laser chip is installed, and the laser chip emits laser light, which is converted into white light for lighting after passing through the plurality of optical components. In the prior art, when a laser emitting part in a heat dissipation shell and a bracket of an optical part are connected with the heat dissipation shell, heat conduction glue is generally adopted for connection. The heat dissipation housing is generally made of a high heat conduction material, such as copper, and the heat conduction coefficient of the heat conduction glue is generally smaller than 10w/m.k and is far lower than 400w/m.k of copper, so that heat generated during operation of components inside the heat dissipation housing cannot be effectively transmitted to the outside of the heat dissipation housing, and when the temperature inside the heat dissipation housing is too high, the luminous efficiency of the laser lighting device is reduced.

For the above related art, in particular, a laser module for converting blue light into white light is prone to have a problem of low light emitting efficiency during laser illumination.

Disclosure of Invention

In order to improve the luminous efficiency of a blue light-to-white light laser module, the application provides a blue light-to-white light laser module easy to dissipate heat.

The application provides an easy radiating blue light changes white light laser module, adopts following technical scheme:

the utility model provides an easy radiating blue light changes white light laser module, includes the heat dissipation shell, heat dissipation shell (1) is including transmitting end (011) and exit end (012), transmitting end (011) with exit end (012) are connected, just transmitting end (011) are directional the direction of exit end (012) is the light-emitting direction, follow in the transmitting end the light-emitting direction has set gradually radiating bottom plate and laser emission spare, radiating bottom plate's lateral wall with the inner wall of transmitting end adopts the welding of heat conduction welding flux, the laser emission spare with radiating bottom plate adopts the welding of heat conduction welding flux, be provided with in the exit end and be used for installing the first pillar of optical part, first pillar with exit end threaded connection.

Through adopting above-mentioned technical scheme, can produce more heat when the laser emission piece transmits laser at the transmitting end, heat can be transmitted to the heat dissipation shell through the heat dissipation bottom plate on, and the heat conduction welding flux between laser emission piece and the heat dissipation bottom plate and the heat conduction welding flux between heat dissipation bottom plate and the heat dissipation shell can both further improve the radiating efficiency of laser emission piece. At the exit end, the optical piece on the first pillar can produce more heat at the during operation, and first pillar and exit end threaded connection both can make the heat that the optical piece of installation on the first pillar produced directly transmit for the heat dissipation shell through first pillar, improve radiating efficiency, have increased the area of contact between first pillar and the heat dissipation shell again, have increased the radiating area of first pillar promptly, have further promoted radiating efficiency, can also fasten first pillar in the heat dissipation shell simultaneously.

In sum, the radiating structure of the emitting end and the emitting end is improved, the radiating efficiency of the laser module is improved, and the problem that the luminous efficiency of the laser module is reduced due to higher temperature in the radiating shell is solved.

Optionally, the laser emission piece includes laser diode, laser diode's one end is provided with the heat dissipation base, the heat dissipation base with the welding of heat dissipation bottom plate, laser diode keeps away from the one end of heat dissipation base is towards the exit end has seted up the exit orifice, the exit orifice is used for the outgoing laser beam.

By adopting the technical scheme, the radiating base is welded with the radiating bottom plate, so that the contact area of the laser diode and the radiating bottom plate is increased, and the radiating efficiency of the transmitting end is improved.

Optionally, the collimating component between the first pillar and the laser emitting component is further disposed in the emitting end, and the collimating component includes a collimating pillar in threaded connection with the emitting end and a collimating mirror mounted on the collimating pillar, and the collimating mirror is used for shrinking the laser beam and emitting a collimated laser beam.

By adopting the technical scheme, the collimating element can be fixed in the emergent end.

Optionally, the collimating support is followed light outlet direction has seted up light inlet and lens mounting hole in proper order, the exit hole the light inlet with the lens mounting hole communicates in proper order, the collimating mirror install in the lens mounting hole.

By adopting the technical scheme, the conical laser beam emitted by the laser emitting part from the emitting hole passes through the light inlet hole and enters the collimating mirror, and the beam passing through the collimating mirror can be contracted into the collimated laser beam parallel to the light emitting direction by the collimating mirror.

Optionally, one end of the first support pillar, which is close to the emission end, is sequentially provided with a focusing lens hole and a first light path through hole which are communicated with each other along the light emitting direction, and the focusing lens hole is sequentially provided with a focusing lens and a light diffusion sheet along the light emitting direction;

the first support column is provided with a second light path through hole, a fluorescent hole, a diaphragm hole and a white light lens hole which are communicated with each other in sequence along the light emitting direction at one end far away from the emitting end, a fluorescent piece is arranged in the fluorescent hole, a diaphragm piece is arranged in the diaphragm hole, and a white light lens is arranged in the white light lens hole;

the first light path through hole is communicated with the second light path through hole, and the focusing mirror hole is communicated with the lens mounting hole.

By adopting the technical scheme, the bracket for mounting the focusing lens, the light diffusion sheet, the fluorescent sheet, the diaphragm sheet and the white light lens is simplified into a first support, the number of parts is reduced, and the production cost of the laser module is effectively reduced. The collimated laser beam is emitted from the lens mounting hole and enters the focusing lens hole, is focused on the fluorescent sheet through the focusing lens, is uniformly focused through the light diffusion sheet, forms a circular blue light spot after falling on the fluorescent sheet, the fluorescent sheet converts the blue light spot into a white light spot, and finally the white light spot is limited into a white light spot with a specific size by the diaphragm sheet, and the white light spot is changed into a beam angle of 30-80 degrees through the white light lens.

Optionally, the exit hole, the light entrance hole, the lens mounting hole, the focusing mirror hole, the first light path through hole, the second light path through hole, the fluorescent hole, the diaphragm hole and the white light lens hole are coaxially arranged.

By adopting the technical scheme, the light loss in the light propagation process can be reduced.

Optionally, the transmitting end is further provided with a circuit board support and a circuit board, the circuit board support is embedded in a port of the transmitting end, the circuit board is arranged on the circuit board support, a positive pin and a negative pin are arranged on the heat dissipation base, and the positive pin and the negative pin penetrate through the heat dissipation base plate and the circuit board and are welded with the circuit board support.

By adopting the technical scheme, the connection of the internal components of the transmitting end is reinforced.

Optionally, the heat dissipation shell is a red copper product or a brass product or an aluminum product.

By adopting the technical scheme, the heat dissipation shell is made of a material with good heat conduction performance, so that the heat dissipation efficiency of the laser module is improved.

Optionally, the heat dissipation base plate is a red copper product or a brass product or an aluminum product.

By adopting the technical scheme, the radiating bottom plate is made of a material with good heat conducting performance, so that heat generated by the laser emitting part can be transferred to the radiating shell.

Optionally, the heat dissipation base with the heat dissipation bottom plate passes through soldering tin welded fastening, the heat dissipation bottom plate with the inner wall of transmitting terminal passes through soldering tin welded fastening.

By adopting the technical scheme, the heat conductivity coefficient of the tin soldering flux is more than 50w/m.k, and the thickness of the soldering tin is thin, so that the heat generated by the laser emitting part can be well transferred to the heat dissipation shell.

In summary, the present application includes at least one of the following beneficial technical effects:

1. at the transmitting end, radiating base and radiating bottom plate pass through the welding of heat conduction welding flux, radiating bottom plate and radiating shell pass through the welding of heat conduction welding flux, at the exit end, first pillar and exit end threaded connection have improved the heat radiation structure of transmitting end and exit end for the heat that the laser emission piece produced can be directly transmitted to radiating shell through radiating bottom plate on, the heat that the optical piece produced can be directly transmitted to radiating shell through first pillar on the first pillar, improved laser module's radiating efficiency, improved because of laser module radiating efficiency is low, and make the problem that laser module luminous efficacy descends.

2. The bracket for mounting the focusing lens, the light diffusion sheet, the fluorescent sheet, the diaphragm sheet and the white light lens is simplified into a first support, so that the number of parts is reduced, and the production cost of the laser module is effectively reduced.

Drawings

Fig. 1 is a schematic structural diagram of a blue-to-white laser module with easy heat dissipation.

Fig. 2 is a cross-sectional view taken along line A-A in fig. 1 for showing the internal structure of the blue-to-white laser module which is susceptible to heat dissipation.

Fig. 3 is a cross-sectional view of the first leg.

Fig. 4 is a cross-sectional view of a collimating strut.

Fig. 5 is a cross-sectional view taken along line A-A of fig. 1 showing the optical path of a blue-to-white laser module that is prone to heat dissipation.

Reference numerals illustrate:

1. a heat dissipation housing; 011. a transmitting end; 012. an exit end; 0121. fastening a thread ring; 2. a circuit board bracket; 021. a circuit board; 3. a laser emitting member; 031. a laser diode; 0311. an exit aperture; 0312. a heat dissipation base; 033. a positive pin; 034. a negative electrode pin; 4. a first support column; 041. a focusing mirror hole; 042. a first optical path through hole; 043. a second optical path through hole; 044. a fluorescent hole; 045. a diaphragm aperture; 046. white light lens aperture; 047. a post thread ring; 5. a focusing lens; 6. a light diffusion sheet; 7. a fluorescent sheet; 8. a diaphragm sheet; 9. a white light lens; 10. a collimating member; 101. a collimating support; 1011. a light inlet hole; 1012. a lens mounting hole; 1013. aligning the thread ring; 102. a collimator lens; 11. a heat dissipation base plate.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

The embodiment of the application discloses a blue light-to-white light laser module easy to dissipate heat. The blue light-to-white light laser module easy to dissipate heat comprises a heat dissipation shell 1 with a hollow inside, wherein the heat dissipation shell 1 is provided with a transmitting end 011 and an emitting end 012, the transmitting end 011 is connected with the emitting end 012, and specifically, the transmitting end 011 and the emitting end 012 are integrally formed. The emitting end 011 is internally provided with a circuit board support 2, a circuit board 021 installed on the circuit board support 2 and a laser emitting part 3 in sequence along the light emitting direction, and the emitting end 012 is internally provided with a first support 4 for installing an optical part.

Specifically, the light emitting direction is the direction from the light beam emitting position to the light beam emitting position, in this embodiment, the laser emitting member 3 is the light beam emitting position of the laser module, and is disposed in the emitting end 011, and the light beam passes through the optical member on the first pillar 4 and then is emitted from the emitting end 012 to the laser module, so that the light emitting direction is the direction from the emitting end 011 to the emitting end 012.

In different embodiments, the heat dissipation case 1 may have different structures, and as an example, the heat dissipation case 1 has a structure with a smooth outer cylindrical surface. However, in order to improve the heat dissipation efficiency, the heat dissipation case 1 may be a cylinder (not shown in the drawings) with threads on the outer surface, so that the contact area between the heat dissipation case 1 and the outside can be increased.

The laser emitting part 3 is disposed in the emitting end 011, and includes a laser diode 031, one end of the laser diode 031 is disposed on a heat dissipation base 0312, one end of the laser diode 031 away from the heat dissipation base 0312 is provided with an exit hole 0311 towards the exit end 012, and the exit hole 0311 is used for emitting a laser beam.

Referring to fig. 2 and 3, a first support column 4 is disposed in the emitting end 012, and an end of the first support column 4 near the emitting end 011 is sequentially provided with a focusing lens hole 041 and a first light path through hole 042 which are communicated in the light emitting direction. The focusing mirror hole 041 and the first optical path through hole 042 are stepped holes, and the aperture of the focusing mirror hole 041 is smaller than that of the first optical path through hole 042. The focusing mirror hole 041 is provided with a focusing lens 5 and a light diffusion sheet 6 in this order along the light-emitting direction. Specifically, the light diffusion sheet 6 is pressed and fixed in the focusing mirror hole 041 by the focusing lens 5, and the focusing mirror hole 041 is bonded in the focusing mirror hole 041. The end of the first support column 4 far away from the emitting end 011 is sequentially provided with a second light path through hole 043, a fluorescent hole 044, a diaphragm hole 045 and a white light lens hole 046 which are communicated with each other along the light emitting direction. The second light path through hole 043, the fluorescent hole 044, the diaphragm hole 045 and the white light lens hole 046 are stepped holes, specifically, the aperture of the second light path through hole 043 is smaller than the aperture of the fluorescent hole 044, the aperture of the fluorescent hole 044 is smaller than the aperture of the diaphragm hole 045, and the aperture of the diaphragm hole 045 is smaller than the aperture of the white light lens hole 046. The fluorescent holes 044 are internally provided with fluorescent sheets 7, and the fluorescent sheets 7 are fixed in the fluorescent holes 044 through heat-conducting silver colloid. The diaphragm sheet 8 is adhered to the diaphragm hole 045, and the white light lens 9 is adhered to the white light lens hole 046. Wherein the first optical path through hole 042 and the second optical path through hole 043 are also communicated, and the focusing mirror hole 041 and the exit hole 0311 are also communicated. The arrangement simplifies the bracket for installing the focusing lens 5, the light diffusion sheet 6, the fluorescent sheet 7, the diaphragm sheet 8 and the white light lens 9 into a first support column 4, reduces the number of parts and effectively reduces the production cost of the laser module.

When the laser module works, the laser diode 031 emits laser, the focusing lens 5 receives the conical laser beam transmitted by the exit hole 0311, the beam is focused on the fluorescent sheet 7, the beam is uniformly carried out through the light diffusion sheet 6, the beam falls on the fluorescent sheet 7 to form a circular blue light spot, the fluorescent sheet 7 converts the blue light spot into a white light spot, finally the white light spot is limited into a white light spot with a specific size by the diaphragm sheet 8, and the white light spot is changed into a beam angle through the white light lens 9.

Referring to fig. 2 and 4, the laser module preferably emits a beam angle of 30-80 degrees, and in order to make the beam angle emitted by the laser module 30-80 degrees, a structure is specifically, but not limitatively provided, a collimating element 10 is disposed between the first pillar 4 and the laser emitting element 3. The collimating element 10 is disposed in the exit end 012 and includes a collimating post 101 and a collimating mirror 102 mounted on the collimating post 101. The collimating columns 101 are sequentially provided with light inlet holes 1011 and lens mounting holes 1012 along the light outlet direction, and the light outlet holes 0311, the light inlet holes 1011 and the lens mounting holes 1012 are sequentially communicated, and the collimating lenses 102 are adhered in the lens mounting holes 1012. So arranged, the conical laser beam emitted from the exit aperture 0311 by the laser emitting element 3 enters the collimator lens 102 through the light entrance aperture 1011, and the beam passing through the collimator lens 102 can be contracted by the collimator lens 102 into a collimated laser beam parallel to the light exit direction.

Referring to fig. 5, the focusing mirror hole 041 is communicated with the lens mounting hole 1012, the focusing lens 5 receives the collimated laser beam, focuses the beam on the fluorescent sheet 7, and uniformly irradiates the fluorescent sheet 6, the beam falls on the fluorescent sheet 7 to form a circular blue light spot, the fluorescent sheet 7 converts the blue light spot into a white light spot, finally the white light spot is limited to a white light spot with a specific size by the diaphragm sheet 8, and the white light spot is changed into a beam angle of 30-80 degrees by the white light lens 9.

The exit aperture 0311, the light entrance aperture 1011, the lens mounting aperture 1012, the focusing mirror aperture 041, the first optical path through-hole 042, the second optical path through-hole 043, the fluorescent aperture 044, the diaphragm aperture 045 and the white light lens aperture 046 are coaxially arranged. This arrangement can reduce light loss during light propagation. In this embodiment, the axis of the exit aperture 0311 is coaxial with the axis of the heat dissipation case 1. The axis of the collimating struts 101 and the axis of the first struts 4 are both coaxial with the axis of the heat dissipating housing 1. The axes of the light inlet hole 1011 and the lens mounting hole 1012 formed in the collimating column 101 are aligned with the axis of the collimating column 101, and the axes of the holes formed in the first column 4 are aligned with the axis of the first column 4. When the laser beam is emitted from the exit aperture 0311, the optical path axis of the laser beam is coaxial with the axis of the exit aperture 0311. The laser beam can proceed along the same axis after it emerges from exit aperture 0311.

In order to enable the heat generated by the laser diode 031 to be effectively led out from the inside of the heat dissipation case 1 to the outside of the heat dissipation case 1, a structure is specifically, but not limitedly provided, wherein a heat dissipation base 11 is disposed inside the emission end 011, and the side wall of the heat dissipation base 11 is welded to the inner wall of the emission end 011 through a heat conduction flux, and the heat dissipation base 0312 is welded to the heat dissipation base 11 through a heat conduction flux. The heat dissipation base 0312 increases the heat dissipation area of the laser diode 031, and by welding the heat dissipation base 0312 and the heat dissipation bottom plate 11 with a heat conducting flux, not only can the laser diode 031 be fixed inside the heat dissipation casing 1, but also the heat generated by the laser diode 031 can be transmitted to the outside of the heat dissipation casing 1 through the heat dissipation bottom plate 11. Specifically, the heat conducting flux between the heat radiating bottom plate 11 and the heat radiating shell 1 and the heat conducting flux between the heat radiating base 0312 and the heat radiating bottom plate 11 can be tin flux, the heat conducting coefficient of the tin flux is above 50w/m.k, the heat conducting performance is better, the heat radiating efficiency of the laser emitting part 3 can be improved, the thickness of the tin is thinner, and the heat radiation cannot be influenced.

Further, the heat dissipation case 1 and the heat dissipation base plate 11 may be made of materials with good heat conductivity, including but not limited to copper, brass and aluminum. In the embodiment, the heat dissipation shell 1 and the heat dissipation bottom plate 11 are both made of red copper, and the heat conductivity coefficient of the red copper is above 400w/m.k, so that the heat dissipation shell has excellent heat dissipation performance.

The heat dissipation base 0312 mentioned above is further provided with a positive-stage pin 033 and a negative-stage pin 034, where the positive-stage pin 033 and the negative-stage pin 034 extend toward the circuit board support 2 embedded at the end opening of the transmitting end 011. Specifically, the positive-stage pins 033 and the negative-stage pins 034 penetrate through the heat dissipation base plate 11 and the circuit board 021, and are welded with the circuit board bracket 2. Since the heat generated by the laser emitting element 3 can be led out from the inside of the heat dissipating case 1 to the outside of the heat dissipating case 1 through the heat dissipating bottom plate 11, the circuit board holder 2 does not need to have a heat transfer function, and the circuit board holder 2 can be fixed at the port of the emitting end 012 by glue.

Referring to fig. 2 and 4, the collimating mirror 102 may be fixed in the emitting end 012 in different manners, the inner wall of the emitting end 012 is provided with a fastening thread ring 0121, that is, the emitting end 012 is provided with an internal thread, and the outer side wall of the collimating support 101 is provided with a collimating thread ring 1013 adapted to the fastening thread ring 0121, that is, the collimating support 101 is provided with an external thread. The collimating element 10 is engaged by the collimating threading ring 1013 and the fastening threading ring 0121, and when assembled, the collimating element 10 can be fixed in the emitting end 012 by rotating the collimating column 101.

Referring to fig. 2 and 3, the fluorescent sheet 7 on the first support 4 generates heat during operation, and the outer side wall of the first support 4 is provided with a support thread ring 047 adapted to the fastening thread ring 0121, i.e. the first support 4 is provided with external threads. The first support 4 is engaged with the fastening screw ring 0121 by the support screw ring 047, and the first support 4 can be fixed in the emitting end 012 by rotating the first support 4 when assembling. The first support column 4 is connected with the emergent end 012 through threaded connection, besides the first support column 4 can be fastened in the emergent end 012, a heat dissipation channel in the emergent end 012 is improved, heat generated by the fluorescent plate 7 arranged on the first support column 4 can be directly transferred to the heat dissipation shell 1 through the first support column 4, heat dissipation efficiency in the heat dissipation shell 1 is improved, contact area between the first support column 4 and the emergent end 012 is increased, and heat dissipation efficiency in the heat dissipation shell 1 is further improved.

The implementation principle of the embodiment of the application is as follows: referring to fig. 2 and 5, after the laser diode 031 emits a laser beam, the laser beam is emitted from the light emitting hole, passes through the collimator lens 102, and is contracted by the collimator lens 102 into a beam parallel to the light emitting direction, the beam passes through the focusing lens 5 and the light diffusion sheet 6, passes through the first light path through hole 042 and the second light path through hole 043, and is focused on the fluorescent sheet 7, a circular blue light spot is formed on the fluorescent sheet 7, the fluorescent sheet 7 converts the blue light spot into a white light spot, and finally the white light spot is limited into a white light spot with a specific size by the diaphragm sheet 8, and the white light spot is changed into a beam angle of 30-80 degrees by the white light lens 9.

The heat generated when the laser diode 031 emits laser light is transferred to the heat dissipation case 1 through the heat dissipation base plate 11, and the heat dissipation efficiency of the laser emitting element 3 can be further improved by the heat conduction flux between the heat dissipation base plate 0312 and the heat dissipation base plate 11 and the heat conduction flux between the heat dissipation base plate 11 and the heat dissipation case 1. The heat generated by the fluorescent sheet 7 on the first support 4 during operation is transferred to the heat dissipating housing 1 by the threaded connection of the first support 4 to the exit end 012.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. The utility model provides an easy radiating blue light changes white light laser module, its characterized in that, including inside hollow heat dissipation shell (1), heat dissipation shell (1) is including transmitting end (011) and exit end (012), transmitting end (011) with exit end (012) are connected, just transmitting end (011) are directional the direction of exit end (012) is the light-emitting direction, follow in transmitting end (011) radiating bottom plate (11) and laser emission piece (3) have been set gradually in the light-emitting direction, radiating bottom plate (11) lateral wall with the inner wall of transmitting end (011) adopts heat conduction welding, laser emission piece (3) with radiating bottom plate (11) adopt heat conduction welding, be provided with in exit end (012) and be used for installing first pillar (4) of optical part, first pillar (4) with exit end (012) threaded connection.

2. The blue light to white light laser module easy to dissipate heat according to claim 1, characterized in that the laser emitting element (3) comprises a laser diode (031), a heat dissipation base (0312) is arranged at one end of the laser diode (031), the heat dissipation base (0312) is welded with the heat dissipation base (11), an exit hole (0311) is formed in the end, away from the heat dissipation base (0312), of the laser diode (031) towards the exit end (012), and the exit hole (0311) is used for emitting laser beams.

3. The blue-to-white light laser module with easy heat dissipation according to claim 2, wherein a collimating element (10) is further disposed in the emitting end (012) and located between the first pillar (4) and the laser emitting element (3), the collimating element (10) includes a collimating pillar (101) that is screwed with the emitting end (012) and a collimating mirror (102) mounted on the collimating pillar (101), and the collimating mirror (102) is used for shrinking the laser beam and emitting the collimated laser beam.

4. A blue-to-white light laser module with easy heat dissipation according to claim 3, wherein the collimating support (101) is provided with a light inlet hole (1011) and a lens mounting hole (1012) in sequence along the light outlet direction, the light outlet hole (0311), the light inlet hole (1011) and the lens mounting hole (1012) are communicated in sequence, and the collimating mirror (102) is mounted in the lens mounting hole (1012).

5. The blue-light-to-white-light laser module with easy heat dissipation according to claim 4, wherein one end of the first support column (4) close to the emission end (011) is sequentially provided with a focusing lens hole (041) and a first light path through hole (042) which are communicated with each other along the light emitting direction, and the focusing lens hole (041) is sequentially provided with a focusing lens (5) and a light diffusion sheet (6) along the light emitting direction;

one end, far away from the emitting end (011), of the first support column (4) is sequentially provided with a second optical path through hole (043), a fluorescent hole (044), a diaphragm hole (045) and a white light lens hole (046) which are communicated with each other along the light emitting direction, a fluorescent sheet (7) is arranged in the fluorescent hole (044), a diaphragm sheet (8) is arranged in the diaphragm hole (045), and a white light lens (9) is arranged in the white light lens hole (046);

wherein the first optical path through hole (042) and the second optical path through hole (043) are also communicated, and the focusing mirror hole (041) and the lens mounting hole (1012) are also communicated.

6. The blue-to-white light laser module with easy heat dissipation according to claim 5, wherein the exit hole (0311), the light entrance hole (1011), the lens mounting hole (1012), the focusing mirror hole (041), the first light path through hole (042), the second light path through hole (043), the fluorescent hole (044), the diaphragm hole (045) and the white light lens hole (046) are all coaxially arranged.

7. The blue light-to-white light laser module with easy heat dissipation according to claim 2, wherein the emission end (011) is further provided with a circuit board bracket (2) and a circuit board (021), the circuit board bracket (2) is embedded at the port of the emission end (011), the circuit board (021) is arranged on the circuit board bracket (2), a positive-stage pin (033) and a negative-stage pin (034) are arranged on the heat dissipation base (0312), and the positive-stage pin (033) and the negative-stage pin (034) penetrate through the heat dissipation base plate (11) and the circuit board (021) and are welded with the circuit board bracket (2).

8. The blue-to-white light laser module with easy heat dissipation according to claim 1, wherein the heat dissipation housing (1) is a red copper product or a brass product or an aluminum product.

9. The blue-to-white light laser module with easy heat dissipation according to claim 7, wherein the heat dissipation base plate (11) is a red copper product or a brass product or an aluminum product.

10. The blue-to-white light laser module with easy heat dissipation according to claim 2, wherein the heat dissipation base (0312) and the heat dissipation base plate (11) are fixed by soldering tin, and the heat dissipation base plate (11) and the inner wall of the emission end (011) are welded by soldering tin.

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