A laser module emitting irregular starry sky effect

Abstract

The utility model discloses a kind of laser module of emission irregular starry sky effect, belong to semiconductor laser application technical field, including laser window mirror, light-reflecting concave mirror, light-reflecting bowl, multi-mirror, light source driving board, laser light source module, power module, 512 public seat female seat, 512 subboard module, waterproof rubber pad, pressboard, waterproof joint, load lifting eye, mounting bottom plate, heat dissipation module, rear panel, front panel, product nameplate slot, boom connecting block, boom, shock pad foot and starry sky lamp cylinder, the light-reflecting concave mirror has light-reflecting concave, the light-reflecting bowl is spherical crown, and several plane mirrors are equipped in its light-reflecting concave, the light-reflecting bowl is parallel with multi-mirror and is obliquely arranged in the front of laser light source module, the utility model has the technical effect that irregular and dynamic change starry sky light spot can be generated, light utilization is high, structure is stable, installation is flexible and has good waterproof heat dissipation performance.

Description

Technical Field

[0001] This utility model belongs to the field of semiconductor laser application technology, and in particular relates to a laser module that emits an irregular starry sky effect. Background Technology

[0002] Traditional starry sky light modules produce regularly distributed light spots or patches, making it difficult to create the random, disordered, and ever-changing visual effect of a real starry sky. This invention provides a laser module that emits an irregular starry sky effect. Through unique design and technology, it can simulate a more natural and realistic irregular starry sky scene, bringing users an immersive experience as if they were in the vast universe. It has broader application prospects in commercial performances, theme parks, astronomical science popularization, and many other fields. Summary of the Invention

[0003] To address the problems existing in the prior art, this utility model provides a laser module that emits irregular starry sky effects. It has the advantages of being able to generate irregular and dynamically changing starry sky light spots, high light utilization, stable structure, flexible installation, and good waterproof and heat dissipation performance. It solves the problems of the regular distribution of light spots or light patches produced by traditional starry sky light modules in the prior art, lack of natural realism, and low light utilization and complex structure of some devices.

[0004] This utility model is implemented as follows: a laser module that emits an irregular starry sky effect includes a laser window mirror, a reflective concave mirror, a reflector bowl, a multi-faceted mirror, a light source driver board, a laser light source module, a power supply module, a 512 male and female connector, a 512 female board module, a waterproof rubber pad, a pressure plate, a waterproof connector, a load-bearing lifting ring, a mounting base plate, a heat dissipation module, a rear panel, a front panel, a product nameplate slot, a boom connecting block, a boom, shock-absorbing pads, and a starry sky lamp body. The mounting base plate is located inside the starry sky lamp body. The laser light source module, light source driver board, power supply module, multi-faceted mirror, reflective concave mirror, and reflector bowl are all mounted on... On the mounting base, the laser window mirror is positioned on the light-emitting side of the starlight tube. The light-emitting path of the laser light source module corresponds sequentially to the polygon mirror, the reflective concave mirror, and the reflector bowl. The light-emitting direction of the reflector bowl corresponds to the laser window mirror. The power module is electrically connected to the light source driver board, and the light source driver board is electrically connected to the laser light source module. The polygon mirror is a multifaceted prism with two aspherical lenses mounted opposite each other on its internal convex surfaces. The reflective concave mirror has a reflective concave surface. The reflector bowl is spherical, with several planar reflectors inside its reflective concave surface. The reflector bowl is parallel to and inclined to the polygon mirror in front of the laser light source module.

[0005] In a preferred embodiment of this invention, the laser source module includes a laser diode, a collimation module, a rearrangement module, a coupling module, and an armored fiber. Lenses and mirrors are bonded to the collimation module and the rearrangement module to adjust and combine the light spot into the desired shape. The coupling module couples the light spot into the armored fiber, and the light spot exits through the armored fiber. The lenses of the collimation module, the rearrangement module, and the coupling module are all directly bonded using UV adhesive technology. The laser diode, collimation module, rearrangement module, coupling module, and armored fiber all adopt a modular and split design. The multifaceted mirror adopts a multifaceted prism structure design, which has the following characteristics... The unique polyhedral geometry effectively reflects and scatters incident light from multiple angles, achieving wide-angle divergence and irregularity of light, and also increasing the light spot density. Inside the polyhedral mirror, two aspherical lenses with different curvature parameters are precisely bonded and installed. Both lenses adopt the optical design of plano-convex lenses. The two aspherical lenses are installed with their convex surfaces facing each other. This opposing installation method can change the shape of the light spot, turning the original Gaussian distribution into an irregular shape, thus producing an irregular light plate, resulting in an irregularly distributed starry sky effect light spot.

[0006] With this setup, the laser light source module emits light by having the power supply module power the light source driver board. The light source driver board then connects all the laser diodes in series for output. The laser diodes are soldered at their ends, and light is emitted when the appropriate voltage and current are applied after all the soldering is complete. The laser diodes are fixed inside the laser light source module by a pressure plate structure. The light source driver board powers the laser diodes and can connect multiple laser diodes in series. UV adhesive direct bonding technology is used, eliminating the need for mechanical connections and adjustments, thus reducing errors caused by structural deformation. The modular and split design allows for rework of any module by simply removing the corresponding module, reducing rework time.

[0007] In a preferred embodiment of this invention, the laser source module is an optical fiber coupled source. After the optical fiber is emitted, it is connected and fixed to the polygon mirror. The polygon mirror collimates and expands the beam and outputs it to the reflective concave mirror. The reflective concave mirror reflects the light spot into the reflector bowl. The expanded incident light spot completely covers the reflector bowl. The laser window mirror, reflective concave mirror, reflector bowl, polygon mirror, collimation module, rearrangement module, and coupling module are all optical designs, employing concave and convex lenses, mirrors, half-wave plates, and polarizing beam splitters with different curvatures.

[0008] This setup achieves high light utilization, thus avoiding light leakage and light decay. The reflector bowl ultimately emits irregular light spots, which, after being reflected by three sets of mirrors, change from a regular distribution to an irregular distribution, thereby making the projected light spots irregular in shape and size, creating a starry sky effect. The optical design employs concave and convex lenses, reflectors, half-wave plates, and polarizing beam splitters with different curvatures to meet different needs, offering high flexibility.

[0009] As a preferred embodiment of this invention, the concave surface of the reflective concave mirror is coated with a reflective film. The laser beam generated by the laser light source module is emitted through the multifaceted mirror and then reflected by the reflective concave mirror and the reflector bowl, and finally emitted through the laser window mirror. The reflector bowl is fixed to the four-phase stepper motor on the motor bracket, and the reflector bowl is connected to the output shaft of the four-phase stepper motor to drive the rotation of the reflector bowl.

[0010] With this setup, the laser source module generates a laser beam, which is emitted as an irregularly shaped light spot after passing through a multi-faceted mirror. After being reflected by a concave mirror, the laser beam undergoes an irregular shift. It is then reflected again by a reflector bowl and projected out through the laser window mirror. A four-phase stepper motor drives the reflector bowl to rotate, causing the laser beam to undergo a secondary shift and dynamic change after passing through the reflector bowl. This results in the final projected light spot becoming irregular in shape and undergoing dynamic changes, simulating a more natural and realistic irregular starry sky scene, thus emitting a large-angle, irregular dynamic light spot.

[0011] Optical path analysis of the multifaceted mirror, concave mirror, and reflector bowl: As a multifaceted prism, the multifaceted mirror's multiple reflective surfaces can reflect the light emitted by the laser source module in different directions, achieving light scattering. Within the internal structure of this multifaceted mirror, two aspherical lenses with different curvature parameters are precisely bonded and installed. Both lenses employ a plano-convex lens optical design. Notably, these two aspherical lenses are mounted with their convex surfaces facing each other. This opposing mounting method alters the light spot shape, transforming the original Gaussian distribution into an irregular one. The shape of the beam is such that it emits an irregular light plate, resulting in an irregularly distributed starry sky effect. The concave mirror utilizes the reflection properties of its concave surface, which converges light. When the laser beam hits the concave surface of the mirror, it changes its propagation direction according to the law of reflection, converging onto the reflector bowl. The reflector bowl is spherical, with several small mirrors attached to its concave surface, increasing the number of reflections and widening the divergence angle. Through multiple reflections, the light path is changed, further adjusting the distribution of the light spot. Combined with the multifaceted mirror, this results in an irregular final projected light spot.

[0012] Through precise optical design and optical path simulation, the multifaceted mirror, the concave mirror, and the reflector bowl can be finely adjusted to find the best light spot effect. At this time, the reflector bowl is exactly at the focal point of the light spot emitted from the beam expander collimator, thus simulating a more natural and realistic irregular starry sky scene.

[0013] As a preferred embodiment of this utility model, the rear panel is fixed with a 512 male and female connector, a waterproof rubber pad, a pressure plate, a waterproof connector, and a load-bearing lifting ring. The load-bearing lifting ring is used to suspend the entire laser module. The waterproof connector is used to fix and lock the power cord. The power cord supplies power to the power module. The power module supplies power to the 512 daughter board module. The 512 male and female connectors cooperate with the 512 daughter board module.

[0014] This setup allows the load-bearing lifting rings to suspend the entire laser module, facilitating installation and deployment in various scenarios. It also enables intelligent control and diversified functional expansion of the laser module, such as adjusting the flashing frequency and color changes of the light spot to meet different usage requirements.

[0015] As a preferred embodiment of this utility model, the waterproof rubber pad is made of rubber and has fixing holes, and the waterproof rubber pad is pressed and fixed to the back plate by a pressure plate.

[0016] This setting protects the 512 daughterboard module from water ingress, achieving IP65 waterproofing.

[0017] In a preferred embodiment of this invention, the heat dissipation module is connected to the mounting base plate, which is an aluminum alloy plate used to conduct the heat generated by the laser light source module to the heat dissipation module.

[0018] This setup allows for heat dissipation of the laser source module. The heat generated by the laser source module is conducted to the heat dissipation module via thermal conduction, thus achieving heat dissipation of the laser source module.

[0019] As a preferred embodiment of this utility model, the pressure plate, waterproof connector, load-bearing lifting ring, mounting base plate, heat dissipation module, rear panel, front panel, boom connecting block, boom, and starlight tube body are all made of aluminum alloy.

[0020] This design ensures durability and prevents dust from entering the laser light source module, while also preventing stray light from escaping, thus providing a degree of protection.

[0021] As a preferred embodiment of this utility model, the front panel has a light outlet and a product nameplate slot on one side, the laser window mirror is installed at the light outlet, the product nameplate slot is used to place and paste the product nameplate, and the shock-absorbing pads are installed at the bottom of the starry sky lamp body.

[0022] This feature allows the product nameplate to display relevant module information, such as model number, parameters, and production date, making it easier for users to understand and manage the product. The shock-absorbing feet can buffer external vibrations to a certain extent, protecting the precision components inside the module from damage caused by vibration.

[0023] In a preferred embodiment of this invention, the boom is fixed to the starlight tube body via boom connecting blocks on both sides.

[0024] This setup allows the starlight to be fixed and installed by a boom, making the installation of the laser module more flexible. The height and angle of the module can be adjusted according to actual needs to achieve the best projection effect.

[0025] Compared with the existing technology, the beneficial effects of this utility model are as follows: It solves the problem that the traditional starry sky light modules on the market produce regularly distributed light spots or patches, which are difficult to create the random, disordered and varied visual effect of the real starry sky. This device, through unique design and technology, can simulate a more natural and realistic irregular starry sky scene.

[0026] This device solves the problem of insufficient emission divergence angle of current starry sky light modules on the market. Through multiple reflections, the divergence angle is expanded, the shape of the light spot is changed, and finally a large-angle, irregular dynamic light spot is emitted.

[0027] This solves the problem of traditional light source modules on the market using too many mirrors and having a large size. Attached Figure Description

[0028] Figure 1 This is a top view of the present invention (without the starry sky lamp tube and the boom).

[0029] Figure 2 This is an isometric view of the present invention (without the starry sky lamp body and boom);

[0030] Figure 3 This is a side view of the present invention (without the starry sky lamp tube and the boom).

[0031] Figure 4 This is a schematic diagram of the optical path of this utility model (excluding the starlight tube and boom).

[0032] Figure 5 This is a schematic diagram of the overall structure of this utility model.

[0033] In the diagram: 1. Laser window mirror; 2. Reflective concave mirror; 3. Reflector bowl; 4. Multi-faceted mirror; 5. Light source driver board; 6. Laser light source module; 7. Power supply module; 8. 512 male and female connectors; 9. 512 daughterboard module; 10. Waterproof rubber pad; 11. Pressure plate; 12. Waterproof connector; 13. Load-bearing lifting ring; 14. Mounting base plate; 15. Heat dissipation module; 16. Rear panel; 17. Front panel; 18. Product nameplate slot; 19. Boom connecting block; 20. Boom; 21. Shock-absorbing pads; 22. Starlight tube body. Detailed Implementation

[0034] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0035] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0036] refer to Figures 1 to 5 As shown in the figure, this utility model provides a laser module for emitting an irregular starry sky effect, including a laser window mirror 1, a reflective concave mirror 2, a reflector bowl 3, a multi-faceted mirror 4, a light source driver board 5, a laser light source module 6, a power supply module 7, a 512 male and female connector 8, a 512 female board module 9, a waterproof rubber pad 10, a pressure plate 11, a waterproof connector 12, a load-bearing lifting ring 13, a mounting base plate 14, a heat dissipation module 15, a rear panel 16, a front panel 17, a product nameplate slot 18, a boom connecting block 19, a boom 20, shock-absorbing pads 21, and a starry sky lamp body 22. The mounting base plate 14 is disposed inside the starry sky lamp body 22. The laser light source module 6, the light source driver board 5, the power supply module 7, the multi-faceted mirror 4, the reflector bowl 5, the reflector bowl 6, the reflector bowl 7, the reflector bowl 8, the reflector bowl 9, the reflector bowl 10, the reflector bowl 11, the reflector bowl 12, the reflector bowl 13, the reflector bowl 14, the mounting base plate 14, the heat dissipation module 15, the rear panel 16, the front panel 17, the product nameplate slot 18, the boom connecting block 19, the boom 20, the shock-absorbing pads 21, and the starry sky lamp body 22. The mounting base plate 14 is disposed inside the starry sky lamp body 22. The laser light source module 6, the light source driver board 5, the power supply module 7, the multi-faceted mirror 4, the reflector bowl 5, the reflector bowl 6, the reflector bowl 7, the reflector bowl 8, the reflector bowl 9, the reflector bowl 10 Both the concave mirror 2 and the reflector bowl 3 are mounted on the mounting base plate 14. The laser window mirror 1 is located on the light-emitting side of the starlight tube body 22. The light-emitting path of the laser light source module 6 corresponds sequentially to the polygon mirror 4, the reflective concave mirror 2, and the reflector bowl 3. The light-emitting direction of the reflector bowl 3 corresponds to the laser window mirror 1. The power module 7 is electrically connected to the light source drive board 5. The light source drive board 5 is electrically connected to the laser light source module 6. The polygon mirror 4 is a multifaceted prism with two aspherical lenses mounted opposite each other on its convex surface. The reflective concave mirror 2 has a reflective concave surface. The reflector bowl 3 is spherical and has several planar reflectors inside its reflective concave surface. The reflector bowl 3 is parallel to and inclined to the polygon mirror 4 in front of the laser light source module 6.

[0037] Specifically, the laser source module 6 includes a laser diode, a collimation module, a rearrangement module, a coupling module, and an armored fiber. Lenses and mirrors are bonded to the collimation module and rearrangement module to adjust and combine the light spot into the desired shape. The coupling module couples the light spot into the armored fiber, through which the light spot exits. The lenses of the collimation module, rearrangement module, and coupling module are all directly bonded using UV adhesive technology. The laser diode, collimation module, rearrangement module, coupling module, and armored fiber all adopt a modular, split design. The multifaceted mirror 4 adopts a multifaceted prism structure design, with its unique multifaceted... The geometric shape of the facet can effectively reflect and scatter incident light at multiple angles, thereby achieving wide-angle divergence and irregularity of light, and also improving the light spot density. In the internal structure of the facet mirror 4, two aspherical lenses with different curvature parameters are precisely bonded and installed. Both lenses adopt the optical design of plano-convex lenses. The two aspherical lenses are installed with their convex surfaces facing each other. This opposing installation method can change the shape of the light spot, making the original Gaussian distribution shape into an irregular shape, thereby emitting an irregular light plate, so that the final emitted star effect light spots are irregularly distributed.

[0038] Using the above scheme, the laser light source module 6 emits light by powering the light source driver board 5 with the power supply module 7. The light source driver board 5 outputs light by connecting all laser diodes in series. The laser diodes are soldered at the tail end. After all the soldering is completed, the corresponding voltage and current are input to emit light. The laser diodes are fixed inside the laser light source module 6 by the pressure plate 11 structure. The function of the light source driver board 5 is to supply power to the laser diodes and can connect multiple laser diodes in series. The UV adhesive direct bonding technology is used, eliminating the need for mechanical structure conversion and adjustment, reducing errors caused by structural deformation. The modular and split design means that only the corresponding module needs to be removed if any module needs to be reworked, reducing rework time.

[0039] Specifically, the laser source module 6 is an optical fiber coupled source. After the optical fiber is emitted, it is connected and fixed to the polygon mirror 4. The polygon mirror 4 collimates and expands the beam and outputs it to the reflective concave mirror 2. The reflective concave mirror 2 reflects the light spot into the reflector bowl 3. The expanded incident light spot completely covers the reflector bowl 3. The laser window mirror 1, the reflective concave mirror 2, the reflector bowl 3, the polygon mirror 4, the collimation module, the rearrangement module, and the coupling module are all optical designs, using concave and convex lenses, mirrors, half-wave plates, and polarizing beam splitters with different curvatures.

[0040] The above scheme achieves high light utilization, thus avoiding light leakage and light decay. The reflector bowl 3 ultimately emits an irregular light spot. After being reflected by three sets of mirrors, the light spot changes from a regular distribution to an irregular distribution, which in turn makes the projected light spot an irregular spot, achieving different shapes and sizes of light spots to create the feeling of a starry sky. The optical design uses concave and convex lenses, reflectors, half-wave plates, and polarizing beam splitters with different curvatures to meet different needs, with high flexibility.

[0041] Specifically, the concave surface of the reflective concave mirror 2 is coated with a reflective film. The laser beam generated by the laser light source module 6 is emitted through the multifaceted mirror 4 and then reflected by the reflective concave mirror 2 and the reflector bowl 3. Finally, it is emitted through the laser window mirror 1. The reflector bowl 3 is fixed to the four-phase stepper motor on the motor bracket. The reflector bowl 3 is connected to the output shaft of the four-phase stepper motor, which drives the rotation of the reflector bowl 3.

[0042] Using the above scheme, the laser light source module 6 generates a laser beam, which is emitted as an irregularly shaped light spot after passing through the multifaceted mirror 4. After being reflected by the reflective concave mirror 2, the laser beam undergoes an irregular shift. After being reflected by the reflector bowl 3, it is projected out from the laser window mirror 1. The reflector bowl 3 is driven to rotate by a four-phase stepper motor, causing the laser beam to undergo a secondary shift and dynamic change after passing through the reflector bowl 3. This results in the final projected light spot becoming irregular and undergoing dynamic changes, simulating a more natural and realistic irregular starry sky scene, thus emitting a large-angle, irregular dynamic light spot.

[0043] Optical path analysis of the polygon mirror 4, the concave mirror 2, and the reflector bowl 3: As a multifaceted prism, the polygon mirror 4 has multiple reflective surfaces that can reflect the light emitted by the laser source module 6 in different directions, achieving light scattering. Within the internal structure of the polygon mirror 4, two aspherical lenses with different curvature parameters are precisely bonded and installed. Both lenses adopt a plano-convex lens optical design. Notably, these two aspherical lenses are installed with their convex surfaces facing each other. This opposing installation method can change the shape of the light spot, transforming the original Gaussian distribution into an irregular shape. The shape of the beam results in an irregularly shaped beam that emits light, creating an irregularly distributed starry sky effect. The concave mirror 2 utilizes the reflective properties of a concave surface, which converges light rays. When the laser beam hits the concave surface of the concave mirror 2, it changes its propagation direction according to the law of reflection and converges onto the reflector bowl 3. The reflector bowl 3 is spherical, with several small mirrors attached to its concave surface, increasing the number of reflections and expanding the divergence angle. Through multiple reflections, the two components change the light path and further adjust the beam distribution. Combined with the polygonal mirror 4, this results in an irregularly shaped projected beam.

[0044] Through precise optical design and optical path simulation, the positions of the multifaceted mirror 4, the concave mirror 2, and the reflector bowl 3 can be finely adjusted to find the best light spot effect. At this time, the reflector bowl 3 is exactly at the focal point of the light spot emitted from the beam expander collimator, thus simulating a more natural and realistic irregular starry sky scene.

[0045] Specifically, the rear panel 16 is fixed with a 512 male and female connector 8, a waterproof rubber pad 10, a pressure plate 11, a waterproof connector 12, and a load-bearing lifting ring 13. The load-bearing lifting ring 13 is used to lift the entire laser module. The waterproof connector 12 is used to fix and lock the power cord. The power cord supplies power to the power module 7. The power module 7 supplies power to the 512 daughter board module 9. The 512 male and female connector 8 cooperates with the 512 daughter board module 9.

[0046] Using the above solution, the load-bearing lifting ring 13 is used to lift the entire laser module, which facilitates installation and layout in different scenarios; it can realize intelligent control and diversified function expansion of the laser module, that is, adjust the flashing frequency and color change of the light spot to meet different usage needs.

[0047] Specifically, the waterproof rubber pad 10 is made of rubber and has fixing holes. The waterproof rubber pad 10 is pressed and fixed to the rear panel 16 by the pressure plate 11.

[0048] By adopting the above solution, the 512 daughterboard module 9 is protected from water ingress, achieving IP65 waterproofing.

[0049] Specifically, the heat dissipation module 15 is connected to the mounting base plate 14, which is an aluminum alloy plate used to conduct the heat generated by the laser light source module 6 to the heat dissipation module 15.

[0050] The above solution is used to dissipate heat from the laser source module 6. The heat generated by the laser source module 6 is conducted to the heat dissipation module 15 through thermal conduction, thereby achieving heat dissipation of the laser source module 6.

[0051] Specifically, the pressure plate 11, waterproof connector 12, load-bearing lifting ring 13, mounting base plate 14, heat dissipation module 15, rear panel 16, front panel 17, boom connecting block 19, boom 20 and starlight tube body 22 are all made of aluminum alloy.

[0052] The above solution is sturdy and durable. The function of the starlight tube body 22 is to prevent dust from entering the laser light source module 6 and to prevent stray light from overflowing, thus providing a certain degree of protection.

[0053] Specifically, the front panel 17 has a light outlet and a product nameplate slot 18 on one side. The laser window mirror 1 is installed at the light outlet, the product nameplate slot 18 is used to place and paste the product nameplate, and the shock-absorbing pad 21 is installed at the bottom of the starlight tube body 22.

[0054] Using the above solution, the product nameplate is marked with relevant information about the module, namely the model, parameters, and production date, which makes it convenient for users to understand and manage the product; the shock-absorbing pads 21 can buffer external vibrations to a certain extent and protect the precision components inside the module from damage caused by vibration.

[0055] Specifically, the boom 20 is fixed to the starlight tube body 22 via boom connecting blocks 19 on both sides.

[0056] Using the above solution, the starry sky light is fixed and installed by the boom 20, making the installation of the laser module more flexible. The height and angle of the module can be adjusted according to actual needs to achieve the best projection effect.

[0057] The working principle of this utility model:

[0058] When using it, first assemble the parts marked on the diagram as shown in the diagram above. Refer to the wiring instructions for wiring. After all the parts are assembled, finally attach the laser window mirror 1 and test the light output and dimming. The reflector bowl 3 is spherical and has several small reflectors attached to its concave reflective surface. The motor drives the reflector bowl 3 to rotate, thereby emitting a large-angle, irregular dynamic light spot.

[0059] Optical path analysis of polygon mirror 4, concave mirror 2, and reflector bowl 3: Polygon mirror 4, as a multifaceted prism, has multiple reflective surfaces that can reflect the light emitted by laser source module 6 in different directions, achieving light scattering. Within the internal structure of polygon mirror 4, two aspherical lenses with different curvature parameters are precisely bonded and installed. Both lenses adopt a plano-convex lens optical design. Notably, these two aspherical lenses are installed with their convex surfaces facing each other. This opposing installation method can change the shape of the light spot, making the original... The Gaussian distribution shape is transformed into an irregular shape, resulting in an irregular light plate that emits light, making the final emitted starry sky effect light spots irregularly distributed. The concave mirror 2 utilizes the reflection characteristics of the concave surface, which has a converging effect on light. When the laser beam hits the reflective concave surface of the reflective concave mirror 2, it will change its propagation direction according to the law of reflection of light and converge onto the reflective bowl 3. The reflective bowl 3 is spherical, and several small reflectors are attached to the reflective concave surface, thereby increasing the number of reflections and expanding the divergence angle. The two reflect each other multiple times to change the light path and further adjust the light spot distribution. Combined with the polygonal mirror 4, the final projected light spot presents an irregular state.

[0060] Through precise optical design and optical path simulation, the positions of the multifaceted mirror 4, the concave mirror 2, and the reflector bowl 3 can be finely adjusted to find the best light spot effect. At this time, the reflector bowl 3 is exactly at the focal point of the light spot emitted from the beam expander collimator, thus simulating a more natural and realistic irregular starry sky scene.

[0061] Finally, fix them in the position where they will perform best, and then use the pressure plate 11 to press and fix the waterproof rubber pad 10 to the rear panel 16. Save the settings, and the installation is complete.

[0062] The light source module can be made into red, green, and blue light source modules, which are combined into white light externally through a beam combining lens; the number of laser diodes matches the power of the corresponding light source module; the light source used in this patent is a laser fiber coupled light source, and the light source selection supports direct laser free space output and LED light source, both of which are applicable to this patent; the armored fiber can be customized in terms of fiber length and fiber core diameter according to actual needs, all of which are applicable to this patent; the cylinder of each component in this patent is made of aluminum alloy with a gray-brown surface treatment, which is sturdy and durable, and different materials and various surface treatments can also be selected according to market demand and customer customization, all of which are applicable to this patent.

[0063] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0064] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laser module that emits an irregular starry sky effect, characterized in that, Includes a laser window mirror (1), a reflective concave mirror (2), a reflective bowl (3), a multi-faceted mirror (4), a light source driver board (5), a laser light source module (6), a power supply module (7), a 512 male and female connector (8), a 512 daughter board module (9), a waterproof rubber pad (10), a pressure plate (11), a waterproof connector (12), a load-bearing lifting ring (13), a mounting base plate (14), a heat dissipation module (15), a rear panel (16), a front panel (17), a product nameplate slot (18), a boom connecting block (19), a boom (20), shock-absorbing pads (21), and a starlight tube body (22). The mounting base plate (14) is located inside the starlight tube body (22). The laser light source module (6), light source driver board (5), power supply module (7), multifaceted mirror (4), reflector concave mirror (2), and reflector bowl (3) are all mounted on the mounting base plate (14). The laser window mirror (1) is located on the light-emitting side of the starlight tube body (22). The light-emitting path of the laser light source module (6) corresponds sequentially to the multifaceted mirror (4), the reflector concave mirror (2), and the reflector bowl (3). The light emitted from the reflector bowl (3) is... The direction corresponds to the laser window mirror (1). The power module (7) is electrically connected to the light source drive board (5). The light source drive board (5) is electrically connected to the laser light source module (6). The multifaceted mirror (4) is a multifaceted prism with two aspherical lenses installed opposite each other on its internal convex surface. The reflective concave mirror (2) has a reflective concave surface. The reflective bowl (3) is spherical and has several planar reflective mirrors in its reflective concave surface. The reflective bowl (3) is parallel to and inclined to the multifaceted mirror (4) in front of the laser light source module (6).

2. The laser module for emitting an irregular starry sky effect as described in claim 1, characterized in that: The laser source module (6) includes a laser diode, a collimation module, a rearrangement module, a coupling module, and an armored fiber. Lenses and mirrors are bonded to the collimation module and the rearrangement module to adjust the light spot to the desired shape. The coupling module couples the light spot into the armored fiber, and the light spot is emitted through the armored fiber. The lenses of the collimation module, the rearrangement module, and the coupling module are all directly bonded with UV adhesive. The laser diode, the collimation module, the rearrangement module, the coupling module, and the armored fiber are all modular and split design. The multifaceted mirror (4) adopts a multifaceted prism structure design. Its special polyhedral geometry can effectively reflect and scatter the incident light at multiple angles, thereby achieving wide-angle divergence and irregularity of light, and also improving the light spot density. In the internal structure of the multifaceted mirror (4), two aspherical lenses with different curvature parameters are precisely bonded and installed. Both lenses adopt the optical design of plano-convex lenses. The installation method of these two aspherical lenses is to install the convex surfaces opposite each other. This opposite installation method can change the shape of the light spot, making the original Gaussian distribution shape into an irregular shape, thereby emitting an irregular light plate, so that the final emitted star effect light spot is irregularly distributed.

3. The laser module for emitting an irregular starry sky effect as described in claim 2, characterized in that: The laser source module (6) is an optical fiber coupled source. After the optical fiber is emitted, it is connected and fixed to the polygon mirror (4). The polygon mirror (4) collimates and expands the beam and outputs it to the reflective concave mirror (2). The reflective concave mirror (2) reflects the light spot into the reflector bowl (3). The incident light spot after beam expansion completely covers the reflector bowl (3). The laser window mirror (1), reflective concave mirror (2), reflector bowl (3), polygon mirror (4), collimation module, rearrangement module and coupling module are all optical designs, using concave and convex lenses, mirrors, half-wave plates and polarizing beam splitters with different curvatures.

4. The laser module for emitting an irregular starry sky effect as described in claim 1, characterized in that: The concave surface of the reflective concave mirror (2) is coated with a reflective film. The laser beam generated by the laser light source module (6) is emitted through the multifaceted mirror (4) and then reflected by the reflective concave mirror (2) and the reflector bowl (3). Finally, it is emitted through the laser window mirror (1). The reflector bowl (3) is fixed to the four-phase stepper motor on the motor bracket. The reflector bowl (3) is connected to the output shaft of the four-phase stepper motor, which drives the rotation of the reflector bowl (3).

5. The laser module for emitting an irregular starry sky effect as described in claim 1, characterized in that: The rear panel (16) is fixed with a 512 male and female connector (8), a waterproof rubber pad (10), a pressure plate (11), a waterproof connector (12), and a load-bearing lifting ring (13). The load-bearing lifting ring (13) is used to lift the entire laser module. The waterproof connector (12) is used to fix and lock the power cord. The power cord supplies power to the power module (7). The power module (7) supplies power to the 512 daughter board module (9). The 512 male and female connector (8) cooperates with the 512 daughter board module (9).

6. The laser module for emitting an irregular starry sky effect as described in claim 1, characterized in that: The waterproof rubber pad (10) is made of rubber and has a fixing hole. The waterproof rubber pad (10) is pressed and fixed on the back panel (16) by the pressure plate (11).

7. The laser module for emitting an irregular starry sky effect as described in claim 1, characterized in that: The heat dissipation module (15) is connected to the mounting base plate (14), which is an aluminum alloy plate used to conduct the heat generated by the laser light source module (6) to the heat dissipation module (15).

8. The laser module for emitting an irregular starry sky effect as described in claim 1, characterized in that: The pressure plate (11), waterproof connector (12), load-bearing lifting ring (13), mounting base plate (14), heat dissipation module (15), rear panel (16), front panel (17), boom connecting block (19), boom (20) and starlight tube body (22) are all made of aluminum alloy.

9. A laser module for emitting an irregular starry sky effect as described in claim 1, characterized in that: The front panel (17) has a light outlet and a product nameplate slot (18) on one side. The laser window mirror (1) is installed at the light outlet. The product nameplate slot (18) is used to place and paste the product nameplate. The shock-absorbing pad (21) is installed at the bottom of the starlight tube body (22).

10. The laser module for emitting an irregular starry sky effect as described in claim 1, characterized in that: The boom (20) is fixed to the starlight tube body (22) by boom connecting blocks (19) on both sides.

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