Phototherapy hair dryer

Abstract

The utility model discloses a phototherapy hair dryer. Comprising an air outlet cylinder head and a handheld part which are connected with each other, the air outlet cylinder head is annular, a through light passing groove is formed in a middle annular opening, and a light wave generating device is arranged in the light passing groove; the light wave generating device emits light waves of a specified wave band in the axis direction of the light passing groove. The air outlet cylinder head is provided with an annular air cavity surrounding the light passing groove, at least one end of the air outlet cylinder head is provided with an air outlet, and the annular air cavity is communicated with the air outlet. An air duct is arranged in the handheld part, one end of the air duct is communicated with the bottom of the annular air cavity, and an air inlet is formed in the other end of the air duct; air sequentially enters the air channel and the annular air cavity through the air inlet, and is output from the air outlet along the peripheral side of the light passing groove. The air outlet is separated from the light passing groove, and the bottom air inlet design is adopted, so that a hot air path is completely separated from a light wave path, and potential damage of a heat source to the light wave generating device is effectively avoided.

Description

Technical Field

[0001] This utility model belongs to the field of hair dryer technology, specifically relating to a phototherapy hair dryer. Background Technology

[0002] In the field of personal care, hair dryers, as an essential tool for daily hair styling, have seen their functions and performance continuously evolve with technological advancements. Tracing back to traditional designs, hair dryers primarily rely on heating elements to generate hot airflow, aiming to quickly dry hair—a basic function that has long satisfied people's fundamental needs. However, technological innovation has never ceased. For example, Chinese patent CN111540126A discloses a novel hair dryer with an integrated light. This prior art employs a rear-intake, front-exhaust airflow design and incorporates an LED light within the hair dryer. This allows the LED light to illuminate simultaneously with the hair dryer's forward airflow, providing a lighting function.

[0003] However, with consumers' increasing demand for healthy and beautiful hair, simple hot air drying can no longer meet the diversified needs of the market. In recent years, the application of phototherapy technology in beauty and hair care has gradually attracted attention, especially for utilizing the positive effects of light on the scalp and hair, such as promoting blood circulation, strengthening hair strands, and reducing hair loss.

[0004] Hair dryer designs that combine phototherapy are often quite simple, such as the existing technologies mentioned above, where the light source is directly embedded in the hair dryer head and output along the same path as the hot air. While this design can achieve a certain degree of integration of phototherapy and hot air, it has significant drawbacks: First, the shared outlet for the light source and hot air greatly limits the uniform distribution of light and the effective irradiation area, thus weakening the expected effects of phototherapy; second, the direct exposure of the light source to the hot air stream may shorten its lifespan and reduce the efficiency of phototherapy; finally, existing hair dryers only use a single wavelength band for hair care, resulting in a narrow range of wavelength selection and limited functionality. Summary of the Invention

[0005] To address the problems in related technologies, this utility model proposes a phototherapy hair dryer to overcome the aforementioned technical issues in existing technologies. This utility model specifically separates the air outlet from the light transmission channel, and incorporates a bottom air intake design, completely separating the hot air path from the light wave path. This effectively avoids potential damage to the light wave generator from the heat source and extends the lifespan of the light wave generator. Consequently, users can simultaneously enjoy the comfort of phototherapy and the drying effect of hot air when using this phototherapy hair dryer, greatly enhancing the user experience.

[0006] The technical solution of this utility model is implemented as follows: A phototherapy hair dryer includes an air outlet head and a handheld part connected together. The air outlet head is annular, and a through light-transmitting groove is formed in the middle of the annular opening. A light wave generating device is provided in the light-transmitting groove. The light wave generating device emits light waves of a specified wavelength along the axial direction of the light-transmitting groove.

[0007] The air outlet head is provided with an annular air cavity around the light-transmitting groove, and at least one end of the air outlet head is provided with an air outlet. The annular air cavity and the air outlet are interconnected. The handheld part is provided with an air duct. One end of the air duct is connected to the bottom of the annular air cavity, and the other end of the air duct is provided with an air inlet. Air enters the air duct and the annular air cavity in sequence through the air inlet, and is output from the air outlet along the periphery of the light-transmitting groove.

[0008] Furthermore, the air outlet head includes an outer cylinder and a built-in inner cylinder; the space between the outer cylinder and the inner cylinder forms the annular air cavity; wherein, the outer cylinder and the inner cylinder are integrally formed; or the outer cylinder and the inner cylinder are separately configured.

[0009] The inner cavity of the inner cylinder is the light-transmitting groove; the light wave generating device includes a light source, which is used to emit light waves of a specified wavelength; the front end of the inner cylinder is provided with a light outlet for the light waves to be emitted.

[0010] Furthermore, the light wave generating device includes a light-emitting plate, a reflective film, a reflector, a front reflector, a diffuser film, and a transparent lampshade, which are sequentially arranged on the same optical axis;

[0011] The light source is provided on the light-emitting panel; the reflective film is attached to the light-emitting panel; the transparent lampshade covers the reflective film to form a closed light cavity; the reflective cover, the front reflector, and the diffuser film are placed inside the light cavity;

[0012] Furthermore, the reflective film has a hole in the middle for the light source to pass through.

[0013] Furthermore, the reflector is placed on the reflective film, the reflector is hollow, and the front reflector is placed inside the reflector;

[0014] The light waves emitted from the light source are reflected by the front reflector onto the reflective film, then reflected by the reflective film onto the reflector again, then reflected by the reflector onto the diffuser film, and finally scattered by the diffuser film before being transmitted out through the transparent lampshade.

[0015] Furthermore, the transparent lampshade has a recessed light-emitting groove on the light-emitting side, and the thickness of the light-emitting groove is less than the thickness of other parts of the transparent lampshade.

[0016] Furthermore, the light-emitting groove is annular;

[0017] Most of the light scattered by the diffuser film is transmitted through the light outlet groove, while a small portion is transmitted through other parts of the transparent lampshade.

[0018] Furthermore, the front reflector is a spherical mirror that is concave towards the light source, located directly in front of the light source, and completely covers the light source;

[0019] Furthermore, the front reflector is provided with a plurality of mounting feet extending toward the light-emitting lamp plate around its perimeter, and the reflective film is provided with limiting grooves for placing the mounting feet; the mounting feet are provided with limiting holes; the transparent lamp cover is provided with a plurality of mounting grooves on the light-receiving side, and the light-emitting lamp plate is provided with mounting holes corresponding to the limiting holes;

[0020] The reflector has multiple recessed clearance grooves around its perimeter, and the diffuser film also has multiple notches corresponding to the clearance grooves around its perimeter.

[0021] The light-emitting panel, reflective film, reflector, front reflector, diffuser film, and transparent lampshade are installed and fixed by fasteners passing through the mounting holes, limiting holes, clearance grooves, notches, and mounting grooves in sequence; wherein, the design of the clearance grooves and notches allows the fasteners to pass through smoothly.

[0022] Furthermore, the light source includes multiple LED beads; each LED bead emits light waves of different wavelengths through combination, including blue light, red light, yellow light, and pink light; wherein the pink light is a combination of red light, blue light, and infrared light;

[0023] Blue light has a wavelength range of 400-430nm; red light has a wavelength range of 620-640nm; yellow light has a wavelength range of 570-590nm; and infrared light has a wavelength range of 820-840nm.

[0024] Furthermore, the inner cylinder includes a front cylinder and a rear cylinder connected to each other. The front cylinder has the light outlet on its front side and a mounting bracket for fixing the light wave generator on its rear side.

[0025] Furthermore, the back of the light-emitting panel is provided with a wiring terminal, which is connected to the electronic control board via a wire; it also includes a light wave control button, which is connected to the electronic control board, and different light waves can be selected by adjusting the light wave control button.

[0026] Furthermore, a through hole is provided on the rear side of the front cylinder along the edge of the mounting bracket, and the through hole is C-shaped, U-shaped, or U-shaped.

[0027] Furthermore, the light wave generator is mounted on the front end of the mounting bracket, and the back of the mounting bracket is provided with a rear reflector and a rear lamp cover;

[0028] The light-emitting panel is made of a light-transmitting material. The light waves emitted by the light source are transmitted through the light-emitting panel to the rear reflector, and after being reflected by the rear reflector, they are emitted from the rear lamp cover.

[0029] Furthermore, the upper end of the handheld part is connected to the middle end of the air outlet head.

[0030] The beneficial effects of this utility model are:

[0031] (1) First, this utility model ingeniously integrates a light wave generator into a light-transmitting slot, allowing light waves of a specified wavelength emitted by the light source to be directly and evenly irradiated onto the hair and scalp through the light-transmitting slot, achieving a highly efficient phototherapy effect. Simultaneously, the design of the annular air cavity and the air duct within the handheld part ensures that air is drawn in from the air inlet, guided by the air duct, and then powerfully blown out from the air outlet at the front of the annular air cavity, meeting the user's need for rapid hair drying.

[0032] (2) Furthermore, the phototherapy hair dryer of this invention specifically separates the air outlet from the light transmission channel. Combined with the bottom air intake design, this completely separates the hot air path from the light wave path, effectively preventing potential damage to the light wave generator from the heat source and extending its lifespan. Simultaneously, due to the separation of the light and hot air paths, the light waves can directly act on the hair and scalp without interference from the hot air, thus ensuring the full realization of the phototherapy effect. The phototherapy hair dryer blows out strong hot air without interfering with the normal emission of light. This design ensures both strong airflow and stable output of the phototherapy effect, thereby maintaining the high efficiency of the phototherapy hair dryer. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of a phototherapy hair dryer according to the present invention;

[0034] Figure 2 This is a cross-sectional view of a phototherapy hair dryer according to the present invention;

[0035] Figure 3 This is a schematic diagram of the structure of the air outlet head of this utility model;

[0036] Figure 4 This is a cross-sectional view of the air outlet head of this utility model;

[0037] Figure 5 for Figure 4 Enlarged view of point A;

[0038] Figure 6 An exploded view of the inner cylinder of this utility model;

[0039] Figure 7 This is an exploded view of the structure of the light wave generating device of this utility model;

[0040] Figure 8 This is a schematic diagram of the light wave generating device of this utility model after removing the transparent lampshade and the diffuser film;

[0041] Figure 9 This is a schematic diagram of the inner cylinder of this utility model;

[0042] Figure 10 This is a schematic diagram of the inner cylinder of this utility model from another angle.

[0043] Marker explanation:

[0044] 1. Air outlet head; 2. Air outlet; 3. Outer cylinder; 4. Inner cylinder; 41. Front cylinder; 411. Light outlet; 412. Mounting bracket; 413. Through hole; 42. Rear cylinder; 5. Annular air cavity; 6. Handheld part; 61. Air duct; 7. Air inlet; 8. Light wave generator; 81. Light-emitting panel; 811. Light source; 812. Mounting hole; 82. Reflective film; 821. Hole; 822. Limiting groove; 83. Reflector; 831. Clearance groove; 84. Front reflector; 841. Mounting foot; 8411. Limiting hole; 85. Diffusing film; 851. Notch; 86. Transparent lampshade; 861. Light outlet groove; 87. Light cavity; 9. Rear reflector; 10. Rear lampshade. Detailed Implementation

[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0046] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0047] Example 1

[0048] like Figure 1-4 As shown, this embodiment provides a phototherapy hair dryer, including an air outlet head 1 and a handheld part 6 connected together. The air outlet head 1 is annular, and a through light-transmitting groove is formed in the middle of the annular opening. A light wave generating device 8 is provided in the light-transmitting groove. The light wave generating device 8 emits light waves of a specified wavelength along the axial direction of the light-transmitting groove.

[0049] The air outlet head 1 is provided with an annular air cavity 5 around the light transmission groove, and at least one end of the air outlet head 1 is provided with an air outlet 2. The annular air cavity 5 and the air outlet 2 are interconnected. The handheld part 6 is provided with an air duct 61. One end of the air duct 61 is connected to the bottom of the annular air cavity 5, and the other end of the air duct 61 is provided with an air inlet 7. Air enters the air duct 61 and the annular air cavity 5 in sequence through the air inlet 7, and is output from the air outlet 2 along the periphery of the light transmission groove.

[0050] First, this embodiment cleverly integrates the light wave generator 8 into the light-transmitting slot. The light waves of the specified wavelength emitted by the light source 811 can be directly and evenly irradiated onto the hair and scalp through the light-transmitting slot, achieving a highly efficient phototherapy effect. Simultaneously, the design of the annular air cavity 5 and the air duct 61 within the handheld part 6 ensures that air is drawn in from the air inlet 7, guided by the air duct 61, and powerfully blown out from the air outlet 2 at the front end of the annular air cavity 5, meeting the user's need for rapid hair drying.

[0051] Furthermore, in this embodiment, the phototherapy hair dryer intentionally separates the air outlet 2 from the light transmission channel. Combined with the bottom air intake design, this completely separates the hot air path from the light wave path, effectively preventing potential damage to the light wave generator 8 from the heat source and extending its lifespan. Simultaneously, due to the separation of the light and hot air paths, the light waves can directly act on the hair and scalp without interference from the hot air, ensuring the full realization of the phototherapy effect. The phototherapy hair dryer blows out strong hot air without interfering with the normal emission of light. This design ensures both strong airflow and stable output of the phototherapy effect, thus maintaining the high efficiency of the phototherapy hair dryer.

[0052] Furthermore, users can enjoy the comfort of light therapy and the drying effect of hot air simultaneously when using this light therapy hair dryer, greatly enhancing the user experience. Specific wavelengths of light can precisely treat different needs of the hair and scalp, such as promoting blood circulation and reducing sebum secretion, thereby improving hair quality and scalp health.

[0053] More specifically, the air outlet head 1 includes an outer cylinder 3 and a built-in inner cylinder 4; the space between the outer cylinder 3 and the inner cylinder 4 forms the annular air cavity 5;

[0054] The inner cavity of the inner cylinder 4 is the light-transmitting groove; the light wave generating device 8 includes a light source 811, which is used to emit light waves of a specified wavelength; the front end of the inner cylinder 4 is provided with a light outlet 411 for emitting light waves.

[0055] In this embodiment, the light waves emitted by the light source 811 of the specified wavelength band can be directly and evenly irradiated onto the hair and scalp through the light outlet 411 at the front end of the inner cylinder 4, achieving a highly efficient phototherapy effect. Moreover, the phototherapy hair dryer in this embodiment deliberately separates the air outlet 2 from the light outlet 411. In addition, the bottom air intake design of the phototherapy hair dryer completely separates the hot air path from the light wave path, further avoiding potential damage to the light wave generating device 8 from the heat source.

[0056] Wherein, the outer cylinder 3 and the inner cylinder 4 are integrally formed; or the outer cylinder 3 and the inner cylinder 4 are separately set.

[0057] In this embodiment, the outer cylinder 3 and the inner cylinder 4 have two design forms: one is an integral molding structure, that is, the outer cylinder 3 and the inner cylinder 4 are processed as a single whole and cannot be separated; the other is a separate setting, that is, the outer cylinder 3 and the inner cylinder 4 are manufactured as independent components and then combined together in the subsequent assembly process.

[0058] Specifically, such as Figure 5-8 As shown, the light wave generating device 8 includes a light-emitting lamp plate 81, a reflective film 82, a reflector 83, a front reflector 84, a diffuser film 85, and a transparent lamp cover 86, which are arranged sequentially on the same optical axis.

[0059] The light source 811 is provided on the light-emitting plate 81; the reflective film 82 is attached to the light-emitting plate 81; the transparent lampshade 86 covers the reflective film 82 to form a closed light cavity 87; the reflector 83, the front reflector 84 and the diffuser 85 are placed inside the light cavity 87.

[0060] More specifically, the reflective film 82 has a hole 821 in the middle for the light source 811 to pass through;

[0061] In this embodiment, a highly integrated optical cavity 87 structure is formed by sequentially arranging the light-emitting plate 81, reflective film 82, reflector 83, front reflector 84, diffuser film 85, and transparent lampshade 86 on the same optical axis. This design not only reduces the overall size of the light wave generating device 8, but also makes the cooperation between the components closer, improving the light transmission efficiency and utilization rate.

[0062] Specifically, the reflector 83 is placed on the reflective film 82, the reflector 83 is hollow, and the front reflector 84 is placed inside the reflector 83;

[0063] The light waves emitted from the light source 811 are reflected by the front reflector 84 onto the reflective film 82, then reflected by the reflective film 82 onto the reflector 83, and then reflected by the reflector 83 onto the diffuser 85. After being scattered by the diffuser 85, the light is transmitted out through the transparent lampshade 86.

[0064] This embodiment utilizes the synergistic effect of the reflective film 82, reflector 83, front reflector 84, and diffuser 85 to ensure that the light emitted by the light source 811, after multiple reflections and scatterings, can evenly and gently illuminate the target area, achieving precise control of the light. This design not only improves the comfort and safety of phototherapy but also ensures the stability and consistency of the phototherapy effect, providing users with a better experience.

[0065] Specifically, the transparent lampshade 86 has a recessed light-emitting groove 861 on the light-emitting side, and the thickness of the light-emitting groove 861 is less than the thickness of other parts of the transparent lampshade 86.

[0066] More specifically, the light-emitting groove 861 is annular;

[0067] Most of the light scattered by the diffuser 85 is transmitted out through the light outlet 861, and a small portion is transmitted out from other positions of the transparent lampshade 86.

[0068] In this embodiment, the concave light-emitting groove 861 on the transparent lampshade 86 allows most of the light scattered by the diffuser film 85 to be concentrated and transmitted through the groove. This design not only enhances the directionality of the light but also makes the light distribution on the target area more uniform, thereby improving the efficiency and effectiveness of phototherapy. Simultaneously, the annular design of the light-emitting groove 861 further ensures uniform light distribution in the circumferential direction, avoiding excessive concentration or absence of light in specific areas, providing users with a more comfortable and consistent phototherapy experience.

[0069] Specifically, the front reflector 84 is a spherical mirror that is concave towards the light source 811, and is located directly in front of the light source 811, completely covering the light source 811;

[0070] More specifically, the front reflector 84 is provided with a plurality of mounting feet 841 extending toward the light-emitting lamp plate 81 around its perimeter, and the reflective film 82 is provided with a limiting groove 822 for placing the mounting feet 841; the mounting feet 841 are provided with limiting holes 8411; the transparent lamp cover 86 is provided with a plurality of mounting grooves on the light-receiving side, and the light-emitting lamp plate 81 is provided with mounting holes 812 corresponding to the limiting holes 8411;

[0071] The reflector 83 is provided with a plurality of recessed clearance grooves 831 around its perimeter, and the diffuser film 85 is also provided with a plurality of notches 851 corresponding to the clearance grooves 831 around its perimeter.

[0072] The light-emitting panel 81, reflective film 82, reflector 83, front reflector 84, diffuser 85, and transparent lampshade 86 are installed and fixed by fasteners passing sequentially through the mounting hole 812, limiting hole 8411, clearance groove 831, notch 851, and mounting groove. The design of the clearance groove 831 and notch 851 allows the fasteners to pass smoothly, thereby making the installation of the light-emitting panel 81, reflective film 82, reflector 83, front reflector 84, diffuser 85, and transparent lampshade 86 more stable and the structure more compact.

[0073] like Figure 6 , Figure 9 and Figure 10 As shown, the inner cylinder 4 includes a front cylinder 41 and a rear cylinder 42 connected to each other. The front cylinder 41 is provided with the light outlet 411 on its front side and a mounting bracket 412 for fixing the light wave generator 8 on its rear side.

[0074] More specifically, the back of the light-emitting panel 81 is provided with a wiring terminal, which is connected to the electronic control board via a wire; it also includes a light wave control button, which is connected to the electronic control board, and different light waves can be selected by adjusting the light wave control button.

[0075] Specifically, the light source 811 includes multiple LED beads; each LED bead emits light waves of different wavelengths through combination, including blue light, red light, yellow light, and pink light; wherein the pink light is a combination of red light, blue light, and infrared light;

[0076] Blue light has a wavelength range of 400-430nm; red light has a wavelength range of 620-640nm; yellow light has a wavelength range of 570-590nm; and infrared light has a wavelength range of 820-840nm.

[0077] This embodiment uses a light source 811 containing multiple LED beads to allow users to select different wavelengths of light for hair care. Blue light has scalp purification and antibacterial effects, red light promotes hair growth, yellow light has soothing and repairing effects, pink light has comprehensive care effects, and infrared light helps relax scalp muscles.

[0078] Specifically, a through hole 413 is provided on the rear side of the front cylinder 41 along the edge of the mounting bracket 412, and the through hole 413 is C-shaped, U-shaped, or U-shaped.

[0079] It should be noted that: because the mounting bracket 412 has a through hole 413 on its edge, the middle of the air outlet head 1 is open from front to back. When the blower is working, a large amount of air enters from the air inlet 7 of the handheld part 6, is heated by the heating device, and is blown out from the air outlet 2 of the air outlet head 1. However, because the middle of the air outlet head 1 is open from front to back, a negative pressure is generated at the end away from the air outlet 2. Therefore, a small amount of natural air will be drawn into the inner cylinder 4 due to the negative pressure and pass through the through hole 413.

[0080] It should be further noted that the temperature of natural wind is low and will not generate heat that affects the light wave generating device 8.

[0081] Specifically, the upper end of the handheld part 6 is connected to the middle end of the air outlet head 1;

[0082] It should be noted that when the handle 6 is connected to the middle of the air outlet head 1, the center of gravity of the entire device may be closer to the user's hand, thereby improving the balance and stability during use. In contrast, if the handle 6 is connected to the rear or front of the air outlet head 1, the center of gravity of the entire device may shift backward or forward, resulting in poorer balance during use.

[0083] Example 2

[0084] This embodiment provides another phototherapy hair dryer. Features not explained in this embodiment can be explained using the methods described in Embodiment 1, and will not be repeated here. The difference between this embodiment and Embodiment 1 is as follows:

[0085] like Figure 4 and Figure 6 As shown, the light wave generating device 8 is installed at the front end of the mounting bracket 412, and the back of the mounting bracket 412 is provided with a rear reflector 9 and a rear lamp cover 10.

[0086] The light-emitting panel 81 is made of a light-transmitting material. The light waves emitted by the light source 811 are transmitted through the light-emitting panel 81 to the rear reflector 9, and after being reflected by the rear reflector 9, they are emitted from the rear lamp cover 10.

[0087] This embodiment only requires one light source 811 to achieve light output from both the front and rear sides, thus saving more resources.

[0088] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A phototherapy hair dryer, comprising an air outlet head and a handheld part connected together, characterized in that: The air outlet head is annular, with a through light-transmitting groove formed at the center of the annular opening. A light wave generating device is installed inside the light-transmitting groove. The light wave generating device emits light waves of a specified wavelength along the axial direction of the light-transmitting groove. The air outlet head is provided with an annular air cavity around the light-transmitting groove, and at least one end of the air outlet head is provided with an air outlet. The annular air cavity and the air outlet are interconnected. The handheld part is provided with an air duct. One end of the air duct is connected to the bottom of the annular air cavity, and the other end of the air duct is provided with an air inlet. Air enters the air duct and the annular air cavity in sequence through the air inlet, and is output from the air outlet along the periphery of the light-transmitting groove.

2. A phototherapy hair dryer according to claim 1, characterized in that, The air outlet includes an outer cylinder and a built-in inner cylinder; the space between the outer cylinder and the inner cylinder forms the annular air cavity; wherein the outer cylinder and the inner cylinder are integrally formed; or the outer cylinder and the inner cylinder are separate parts. The inner cavity of the inner cylinder is the light-transmitting groove; the light wave generating device includes a light source, which is used to emit light waves of a specified wavelength; the front end of the inner cylinder is provided with a light outlet for the light waves to be emitted.

3. A phototherapy hair dryer according to claim 2, characterized in that, The light source includes multiple LED beads; each LED bead emits light waves of different wavelengths through combination, including blue light, red light, yellow light, and pink light; wherein the pink light is a combination of red light, blue light, and infrared light; Blue light has a wavelength range of 400-430nm; red light has a wavelength range of 620-640nm; yellow light has a wavelength range of 570-590nm; and infrared light has a wavelength range of 820-840nm.

4. A phototherapy hair dryer according to claim 2, characterized in that, The light wave generating device includes a light-emitting panel, a reflective film, a reflector, a front reflector, a diffuser, and a transparent lampshade, which are arranged sequentially on the same optical axis. The light source is provided on the light-emitting plate; the reflective film is attached to the light-emitting plate; the transparent lampshade covers the reflective film to form a closed light cavity; the reflective cover, the front reflector and the diffuser film are placed inside the light cavity.

5. A phototherapy hair dryer according to claim 4, characterized in that, The reflector is placed on the reflective film, the reflector is hollow, and the front reflector is placed inside the reflector; The light waves emitted from the light source are reflected by the front reflector onto the reflective film, then reflected by the reflective film onto the reflector again, then reflected by the reflector onto the diffuser film, and finally scattered by the diffuser film before being transmitted out through the transparent lampshade.

6. A phototherapy hair dryer according to claim 4, characterized in that, The transparent lampshade has a recessed light-emitting groove on the light-emitting side, and the thickness of the light-emitting groove is less than the thickness of other parts of the transparent lampshade.

7. A phototherapy hair dryer according to claim 4, characterized in that, The front reflector is a spherical mirror that is concave towards the light source, located directly in front of the light source, and completely covers the light source.

8. A phototherapy hair dryer according to claim 2, characterized in that, The inner cylinder includes a front cylinder and a rear cylinder connected to each other. The front cylinder has the light outlet on its front side and a mounting bracket for fixing the light wave generating device on its rear side.

9. A phototherapy hair dryer according to claim 8, characterized in that, A through hole is provided on the rear side of the front cylinder along the edge of the mounting bracket. The through hole is C-shaped, U-shaped, or U-shaped.

10. A phototherapy hair dryer according to claim 8, characterized in that, The light wave generator is installed at the front end of the mounting bracket, and the back of the mounting bracket is provided with a rear reflector and a rear lamp cover.

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