Red and blue light therapeutic apparatus for skin surgery and control system thereof
By introducing measurement components and a control system into the red and blue light therapy device, real-time detection and adjustment of light power and skin condition are achieved, solving the problems of light attenuation and individual differences, and improving the accuracy and safety of treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- NANJING HUAWEI MEDICAL EQUIP
- Filing Date
- 2026-03-27
- Publication Date
- 2026-05-12
AI Technical Summary
Existing home-use red and blue light therapy devices lack a real-time detection and calibration mechanism for light power, which leads to light attenuation affecting the treatment effect. Furthermore, the irradiation duration setting lacks consideration for individual differences, which may cause adverse skin reactions.
The system employs measurement components and a control system to detect light intensity and skin condition using a photometer, a photosensitive plate, and a high-definition camera. Combined with AI visual detection, it uses a stepper motor and a distance sensor to adjust treatment parameters, ensuring constant irradiance on the skin surface and establishing patient treatment records.
This improves the precision of red and blue light therapy devices, avoiding insufficient or excessive treatment due to light attenuation, and ensuring the consistency and safety of treatment effects.
Smart Images
Figure CN122006136A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of phototherapy technology, and in particular to a red and blue light therapy device for dermatological surgery and its control system. Background Technology
[0002] Red and blue light therapy devices are a very popular type of phototherapy equipment that mainly uses visible light of specific wavelengths to treat skin problems.
[0003] With the development of technology, home-use red and blue light therapy devices are becoming more and more widely used. On the one hand, red and blue light therapy devices generally use LED light sources as light-emitting elements. However, LED light sources have a defined lifespan. As the usage time accumulates, their light power will gradually decrease, resulting in a deviation between the actual output energy and the initial calibration value. Since existing home-use devices lack a real-time detection and calibration mechanism for light power, users cannot perceive the degree of light decay, and the treatment effect is difficult to guarantee after long-term use.
[0004] On the other hand, current home-use red and blue light therapy devices typically rely solely on general recommendations in the product manual or the user's subjective judgment when setting the irradiation duration, lacking consideration for individual differences. The patient's skin condition (such as skin color, sensitivity, and barrier function) and the severity of their condition (such as acne grade and degree of inflammation) are key factors in determining the treatment dosage. Existing devices cannot objectively identify and quantify these conditions before or during treatment, leading to significant arbitrariness in setting the irradiation duration. Insufficient irradiation duration makes it difficult to achieve the desired therapeutic effect; excessive irradiation duration may cause adverse reactions such as skin burns, dryness and peeling, and pigmentation, affecting treatment safety and user experience. Therefore, this paper proposes a red and blue light therapy device for dermatological surgery and its control system. Summary of the Invention
[0005] The purpose of this invention is to solve the problems existing in the prior art by proposing a red and blue light therapy device for dermatological surgery and its control system.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: A red and blue light therapy device for dermatological surgery includes a placement base and a treatment lamp. The placement base is provided with a control base and is connected to the treatment lamp via a support plate. Two guide rails are installed on the support plate, and guide seats are slidably disposed on each guide rail. The lower guide seat is fixed with a photosensitive plate by a hydraulic push rod, and the upper guide seat is connected to a measurement component for pretreatment detection. A retaining seat is fixedly installed at the top of the support plate. A steering seat is connected to the top of the retaining seat through a corrugated compensation sleeve. A shaft fixing plate is fixed on the steering seat. Two symmetrically arranged adjusting plates are fixed on the retaining seat. A limiting component for limiting the angle adjustment is provided on the inner side wall of the adjusting plate. A stepper motor is installed on one side of the adjusting plate. The output end of the stepper motor is connected to the adjusting component through a drive shaft.
[0007] Preferably, the control base is provided with a control main board for controlling the operation of the therapeutic instrument, the placement base is fixedly connected to the support plate, and the support plate is fixedly connected to the guide slide rail.
[0008] Preferably, the measuring component includes a photometer convex lens located above the photosensitive plate, and two guide seats located above are fixedly connected to a steering mechanism. One steering mechanism is rotatably connected to the photometer convex lens, and the other steering mechanism is rotatably connected to a skin-measuring concave lens. A photoelectric sensor is installed inside the photosensitive plate.
[0009] Preferably, a test light source is fixedly installed on the side wall of the support plate on one side of the skin measuring concave mirror, and a high-definition camera is provided above and below the test light source, and the high-definition camera is fixedly connected to the support plate.
[0010] Preferably, the fixed shaft sleeve is rotatably connected to the treatment lamp via an electric hinge, and the fixed shaft sleeve is fixedly installed on the steering seat via a right-angle plate.
[0011] Preferably, the limiting component includes limiting pads arranged in an array on the inner sidewall of the adjusting plate, pins fixedly connected to both sides of the steering seat, limiting beads corresponding to the limiting pads fixed on the outer sidewall of the pins, the pins being rotatably connected to the adjusting plate, and a distance measuring sensor fixed to the end of the pins via a right-angle rod.
[0012] Preferably, the adjustment assembly includes a driven gear ring fixed to the outer wall of a pin shaft on one side, and the output end of the stepper motor is fixedly connected to a drive gear via a drive shaft, the drive gear meshing with the driven gear ring.
[0013] A control system for a red and blue light therapy device for dermatological surgery is proposed. During the adjustment process, the treatment lamp is adjusted to ensure consistent therapeutic effects on the target skin surface based on the irradiance received. As a standard measure, the irradiance received by the target skin surface The calculation formula is: in, : Irradiance received by the target skin surface ( ) The luminous intensity of the light source in the vertical direction ( ) Distance from the light source to the skin ( ) Angle of incidence of light (the angle between the ray and the skin normal) When the user changes distance or angle At that time, the control system automatically calculates the drive current that needs to be adjusted so that the skin surface receives the appropriate current. Keep it constant. That is: Treatment dose calculation: based on the preset energy density (J / cm²) 2 The system automatically calculates the required irradiation time t = energy density / E, which allows for autonomous control of the treatment dose during the treatment process, ensuring better treatment efficacy.
[0014] The operation of the control system includes the following steps: S1. Pre-treatment composite test: The treatment lamp is turned on to illuminate the photometer convex mirror. The photometer convex mirror focuses the treatment light emitted by the treatment lamp onto the photosensitive plate, making the light intensity detectable and amplifying. This facilitates the detection of the light intensity of the treatment lamp. Then, the surface condition of the skin to be treated is visually observed by using a test light source in conjunction with a skin-measuring concave mirror. S2. Synchronous calibration of treatment parameters: Based on the detection data in step S1, after the control system reads the parameters of the last red and blue light treatment, it adjusts the various parameters of the treatment device according to the latest state of the surface of the user's target skin using components such as stepper motors and distance sensors. S3. Treatment parameter update and storage: After the treatment parameters are updated in step S2, the control system archives the latest parameters so that the subsequent control system can form a comprehensive file based on the patient's treatment situation each time, which meets the needs of long-term use of the red and blue light therapy device.
[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This solution, through the setting of measurement components, can use a photometer convex lens and photosensitive plate to conduct actual irradiation detection of the treatment lamp, avoiding the blind spot of traditional equipment where "the lamp is effective as long as it is on." It can quantitatively detect light power attenuation, avoiding the problem of insufficient treatment energy and decreased efficacy due to equipment aging. By using a skin-measuring concave lens to scatter light, combined with a high-definition camera and AI visual detection, the judgment of skin condition is transformed from visual inspection to objective data collection. By comparing with the skin condition data of previous treatments, parameter adjustments have a scientific basis, rather than relying solely on experience, thus improving the accuracy of treatment.
[0016] 2. This solution, by adjusting the component settings, can utilize stepper motors, distance sensors, and steering mechanisms to allow the control system to combine with formulas. The system makes real-time adjustments; when the treatment light source moves on a discontinuous plane, the system automatically calculates and adjusts the luminous intensity. Ensure the skin surface receives sufficient irradiance. Maintaining a constant dosage is a control strategy that avoids burns caused by being too close to the treatment site or ineffective treatment caused by being too far away, ensuring the uniformity and consistency of the treatment effect across the entire face.
[0017] 3. This solution, through the configuration of the control system, can create a comprehensive patient file, recording the distance, angle, intensity, and time of each treatment. The file can be directly read during subsequent treatments to quickly reproduce the previous treatment location, ensuring treatment continuity. After reading the file, combined with the latest skin condition detected by AI vision in step S1 (such as inflammation reduction), parameters can be fine-tuned, achieving personalized precision medicine for each patient. Attached Figure Description
[0018] Figure 1 This is a frontal three-dimensional structural diagram of a red and blue light therapy device for dermatological surgery proposed in this invention; Figure 2 This is a three-dimensional structural diagram of the back of a red and blue light therapy device for dermatological surgery proposed in this invention; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the position of the fixation seat in a red and blue light therapy device for dermatological surgery proposed in this invention; Figure 5 This is a schematic diagram of the structure of the steering seat in a red and blue light therapy device for dermatological surgery proposed in this invention; Figure 6 This is a schematic diagram of the adjustment component in a red and blue light therapy device for dermatological surgery proposed in this invention; Figure 7 This is a flowchart of a control system for a red and blue light therapy device for dermatological surgery proposed in this invention; Figure 8 This is a diagram illustrating the operating steps of a red and blue light therapy device control system for dermatological surgery proposed in this invention.
[0019] In the diagram: 1. Placement seat; 2. Treatment lamp; 3. Control seat; 4. Support plate; 5. Guide rail; 6. Guide seat; 7. Photosensitive plate; 8. Steering mechanism; 9. Photometer convex lens; 10. Skin measuring concave lens; 11. Test light source; 12. High-definition camera; 13. Fixing seat; 14. Corrugated compensation sleeve; 15. Steering seat; 16. Shaft fixing plate; 17. Electric hinge; 18. Adjustment plate; 19. Pin; 20. Limiting bead; 21. Distance sensor; 22. Limiting pad; 23. Stepper motor; 24. Driving gear; 25. Driven gear ring. Detailed Implementation
[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.
[0021] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0023] Example, refer to Figures 1 to 8 A red and blue light therapy device for dermatological surgery includes a placement seat 1 and a treatment lamp 2. The placement seat 1 is provided with a control seat 3. The placement seat 1 is connected to the treatment lamp 2 through a support plate 4. Two guide slides 5 are installed on the support plate 4. Guide seats 6 are slidably arranged on each guide slide 5. The lower guide seat 6 is fixed with a photosensitive plate 7 by a hydraulic push rod. The upper guide seat 6 is connected to a measuring component for pretreatment detection. Furthermore, the control base 3 is equipped with a control mainboard for controlling the operation of the treatment device. The placement base 1 is fixedly connected to the support plate 4, and the support plate 4 is fixedly connected to the guide slide rail 5. The measuring component includes a photometer convex lens 9 located above the photosensitive plate 7. The two guide seats 6 located above are fixedly connected to a steering mechanism 8. One side of the steering mechanism 8 is rotatably connected to the photometer convex lens 9, and the other side of the steering mechanism 8 is rotatably connected to a skin measuring concave lens 10. A photoelectric sensor is installed inside the photosensitive plate 7. A test light source 11 is fixedly installed on the side wall of the support plate 4 located on one side of the skin measuring concave lens 10. High-definition cameras 12 are provided above and below the test light source 11, and the high-definition cameras 12 are fixedly connected to the support plate 4. It should be noted that after the treatment device is placed on the placement seat 1, the guide seat 6 on the upper guide slide rail 5 drives the photometer convex lens 9 to rotate below the treatment lamp 2, and the photosensitive plate 7 on the lower guide slide rail 5 is kept on the same vertical plane as the photometer convex lens 9. Then, the treatment lamp 2 is turned on to emit treatment light. After the light passes through the photometer convex lens 9, it is focused onto the photosensitive plate 7, which facilitates the direct detection of the amplified light intensity by the photosensitive plate 7. During this process, the photosensitive plate 7 reciprocates below the photometer convex lens 9 and moves synchronously back and forth using a hydraulic push rod to perform a more comprehensive detection of the area light source, avoiding the attenuation of the light power of the treatment device after long-term use, which would result in poor treatment effect. Then, the skin measuring concave lens 10 is used to scatter the light from the test light source 11 onto the surface of the target skin to be treated, making the condition of the target skin surface and surrounding skin clearer, which is convenient for the high-definition camera 12 to identify. Using AI visual detection technology, the condition of the target skin surface is analyzed and judged. The advantages mentioned above are: it makes it easy to adjust the parameters of the red and blue light therapy device in a timely manner according to the skin condition; A fixed base 13 is fixedly installed at the top of the support plate 4. A steering seat 15 is connected to the top of the fixed base 13 through a corrugated compensation sleeve 14. A fixed shaft sleeve 16 is fixed on the steering seat 15. Two symmetrically arranged adjustment plates 18 are fixed on the fixed base 13. A limiting component for limiting the angle adjustment is provided on the inner side wall of the adjustment plate 18. A stepper motor 23 is installed on one side of the adjustment plate 18. The output end of the stepper motor 23 is connected to the adjustment component through a drive shaft. Furthermore, the fixed shaft sleeve 16 is rotatably connected to the treatment lamp 2 via an electric hinge 17. The fixed shaft sleeve 16 is fixedly installed on the steering seat 15 via a right-angle plate. The limiting component includes limiting pads 22 arranged in an array on the inner side wall of the adjusting plate 18. Pins 19 are fixedly connected to both sides of the steering seat 15. Limiting beads 20 corresponding to the limiting pads 22 are fixed on the outer side wall of the pins 19. The pins 19 are rotatably connected to the adjusting plate 18. A distance sensor 21 is fixed to the end of the pins 19 via a right-angle rod. The adjusting component includes a driven gear ring 25 fixed to the outer side wall of one side of the pins 19. The output end of the stepper motor 23 is fixedly connected to a drive gear 24 via a drive shaft. The drive gear 24 meshes with the driven gear ring 25. It should be noted that during the treatment process, the control system reads the previous treatment parameters and then controls the electric hinge 17 to rotate, adjusting the opening and closing state of the treatment lamp 2 to ensure that the irradiated area is close to the skin area to be treated. When it is necessary to adjust the irradiation angle of red and blue light, the stepper motor 23 is started to drive the active gear 24 to rotate. The rotation of the active gear 24 will drive the meshing driven gear ring 25 to rotate. The driven gear ring 25 will then drive the steering seat 15 to rotate through the pin 19, thereby adjusting the irradiation angle of the treatment lamp 2. During the rotation, the corrugated compensation sleeve 14 acts as a rotation damper to ensure that the angle adjustment is slow and stable. After the angle is adjusted, the limiting bead 20 is engaged and limited on the limiting pad 22. Then, the meshing between the active gear 24 and the driven gear ring 25 is engaged to achieve the limit of the treatment lamp 2 after adjustment. At the same time, the distance sensor 21 on the end of the pin 19 will measure the distance between the treatment lamp 2 and the skin surface to ensure the accuracy of the treatment. The advantages mentioned above are: based on the irradiance received by the target skin surface. The constant is the standard, and the control system adopts the formula. This allows for real-time adjustments, facilitating constant treatment dose control on discontinuous skin surfaces and ensuring better efficacy of the red and blue light therapy device. According to a control system proposed for a red and blue light therapy device for dermatological surgery, during the adjustment process of the treatment lamp 2, in order to ensure that the therapeutic effect received by the target skin is consistent, the irradiance received by the target skin surface is used. As a standard measure, the irradiance received by the target skin surface The calculation formula is: in, : Irradiance received by the target skin surface ( ) The luminous intensity of the light source in the vertical direction ( ) Distance from the light source to the skin ( ) Angle of incidence of light (the angle between the ray and the skin normal) When the user changes distance or angle At that time, the control system automatically calculates the drive current that needs to be adjusted so that the skin surface receives the appropriate current. Keep it constant. That is: Treatment dose calculation: based on the preset energy density (J / cm²) 2 The system automatically calculates the required irradiation time t = energy density / E, which allows for autonomous control of the treatment dose during the treatment process, ensuring better treatment efficacy.
[0024] The operation of the control system includes the following steps: S1. Pre-treatment composite detection: The treatment lamp 2 is turned on to illuminate the photometer convex mirror 9. The photometer convex mirror 9 focuses the treatment light emitted by the treatment lamp 2 onto the photosensitive plate 7, so that the light intensity can be amplified and detected, making it easier to detect the light intensity of the treatment lamp 2. Then, the surface condition of the skin of the target skin is visually observed through the test light source 11 and the skin concave mirror 10. S2. Synchronous calibration of treatment parameters: Based on the detection data in step S1, after the control system reads the parameters of the last red and blue light treatment, the various parameters of the treatment device are adjusted according to the latest state of the surface of the skin to be treated by the user, using components such as stepper motor 23 and distance sensor 21. S3. Treatment parameter update and storage: After the treatment parameters are updated in step S2, the control system archives the latest parameters so that the subsequent control system can form a comprehensive file based on the patient's treatment situation each time, which meets the needs of long-term use of the red and blue light therapy device.
[0025] In use, the therapeutic device is placed on the base 1. First, the guide seat 6 on the upper guide slide rail 5 drives the photometer convex lens 9 to rotate below the therapeutic lamp 2, and the photosensitive plate 7 on the lower guide slide rail 5 is kept on the same vertical plane as the photometer convex lens 9. Then, the therapeutic lamp 2 is turned on to emit therapeutic light. After the light passes through the photometer convex lens 9, it is focused onto the photosensitive plate 7, which facilitates the direct detection of the amplified light intensity. During this process, the photosensitive plate 7 reciprocates below the photometer convex lens 9 and moves synchronously back and forth using a hydraulic push rod to perform a more comprehensive detection of the area light source, avoiding the attenuation of the light power of the therapeutic device after long-term use, which would result in poor treatment effect. Then, the skin concave lens 10 is used to scatter the light from the test light source 11 onto the surface of the target skin to be treated, making the condition of the target skin surface and surrounding skin clearer, which is convenient for the high-definition camera 12 to identify. Using AI visual detection technology, the condition of the target skin surface is analyzed and judged, which facilitates timely adjustment of various parameters of the red and blue light therapy device according to the skin condition. During treatment, the control system reads the previous treatment parameters and then controls the electric hinge 17 to rotate, adjusting the opening and closing state of the treatment lamp 2 to ensure that the illuminated area is close to the skin area to be treated. When it is necessary to adjust the irradiation angle of the red and blue light, the stepper motor 23 is started to drive the drive gear 24 to rotate. The rotation of the drive gear 24 will drive the meshing driven gear ring 25 to rotate, and the driven gear ring 25 will drive the steering seat 15 to rotate through the pin 19, thereby adjusting the irradiation angle of the treatment lamp 2. During the rotation, the corrugated compensation sleeve 14... This is equivalent to rotational damping, ensuring slow and stable angle adjustment. After the angle is adjusted, the limiting bead 20 engages and is limited on the limiting pad 22. Then, it meshes with the driving gear 24 and the driven gear ring 25 to achieve the limited position of the treatment lamp 2 after adjustment. Simultaneously, the distance sensor 21 on the end of the pin 19 measures the distance between the treatment lamp 2 and the skin surface, ensuring the precision of the treatment. During treatment, if treating skin on a non-continuous plane, adjustments are made during the treatment process according to the irradiance received by the target skin surface. The constant is the standard, and the control system adopts the formula. This allows for real-time adjustments, facilitating constant treatment dose control on discontinuous skin surfaces and ensuring better efficacy of the red and blue light therapy device.
[0026] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. A red and blue light therapy device for dermatological surgery, comprising a placement base (1) and a treatment lamp (2), characterized in that, The placement seat (1) is provided with a control seat (3). The placement seat (1) is connected to the treatment lamp (2) through a support plate (4). Two guide rails (5) are installed on the support plate (4). Guide seats (6) are slidably arranged on each guide rail (5). The lower guide seat (6) is fixed with a photosensitive plate (7) by a hydraulic push rod. The upper guide seat (6) is connected with a measuring component for pre-treatment detection. A retaining seat (13) is fixedly installed at the top of the support plate (4). A steering seat (15) is connected to the top of the retaining seat (13) through a corrugated compensation sleeve (14). A shaft fixing plate (16) is fixed on the steering seat (15). Two symmetrically arranged adjusting plates (18) are fixed on the retaining seat (13). A limiting component for limiting the angle adjustment is provided on the inner side wall of the adjusting plate (18). A stepper motor (23) is installed on one side of the adjusting plate (18). The output end of the stepper motor (23) is connected to the adjusting component through a drive shaft.
2. The red and blue light therapy device for dermatological surgery according to claim 1, characterized in that, The control seat (3) is equipped with a control motherboard for controlling the operation of the therapeutic instrument. The placement seat (1) is fixedly connected to the support plate (4), and the support plate (4) is fixedly connected to the guide rail (5).
3. The red and blue light therapy device for dermatological surgery according to claim 1, characterized in that, The measuring assembly includes a photometer convex lens (9) located above the photosensitive plate (7). Both of the two guide seats (6) located above are fixedly connected to a steering mechanism (8). One side of the steering mechanism (8) is rotatably connected to the photometer convex lens (9), and the other side of the steering mechanism (8) is rotatably connected to a skin measuring concave lens (10). A photoelectric sensor is installed inside the photosensitive plate (7).
4. A red and blue light therapy device for dermatological surgery according to claim 3, characterized in that, The support plate (4) has a test light source (11) fixedly installed on the side wall located on one side of the skin measuring concave mirror (10). High-definition cameras (12) are provided above and below the test light source (11), and the high-definition cameras (12) are fixedly connected to the support plate (4).
5. A red and blue light therapy device for dermatological surgery according to claim 1, characterized in that, The fixed shaft sleeve (16) is rotatably connected to the treatment lamp (2) via an electric hinge (17), and the fixed shaft sleeve (16) is fixedly installed on the steering seat (15) via a right angle plate.
6. A red and blue light therapy device for dermatological surgery according to claim 1, characterized in that, The limiting components include limiting pads (22) arranged in an array on the inner sidewall of the adjusting plate (18), pins (19) are fixedly connected to both sides of the steering seat (15), and limiting beads (20) corresponding to the limiting pads (22) are fixed on the outer sidewall of the pins (19). The pins (19) are rotatably connected to the adjusting plate (18), and a distance sensor (21) is fixed to the end of the pins (19) by a right-angle rod.
7. A red and blue light therapy device for dermatological surgery according to claim 6, characterized in that, The adjustment assembly includes a driven gear ring (25) fixed on the outer wall of a pin (19) on one side. The output end of the stepper motor (23) is fixedly connected to a drive gear (24) via a drive shaft. The drive gear (24) meshes with the driven gear ring (25).
8. A control system for a red and blue light therapy device for dermatological surgery as described in any one of claims 1 to 7, characterized in that, During the adjustment process of the treatment lamp (2), in order to ensure that the therapeutic effect received by the target skin is consistent, the irradiance received by the target skin surface is used. As a standard measure, the irradiance received by the target skin surface The calculation formula is: in, : Irradiance received by the target skin surface ( ) The luminous intensity of the light source in the vertical direction ( ) Distance from the light source to the skin ( ) Angle of incidence of light (the angle between the ray and the skin normal) When the user changes distance or angle At that time, the control system automatically calculates the drive current that needs to be adjusted so that the skin surface receives the appropriate current. Keep it constant. That is: Treatment dose calculation: based on the preset energy density (J / cm²) 2 The system automatically calculates the required irradiation time t = energy density / E, which allows for autonomous control of the treatment dose during the treatment process, ensuring better treatment efficacy.
9. The control system according to claim 8, characterized in that, Includes the following steps: S1. Pre-treatment composite detection: The treatment lamp (2) is turned on to irradiate the photometer (9). The photometer (9) focuses the treatment light emitted by the treatment lamp (2) onto the photosensitive plate (7), so that the light intensity can be amplified, which is convenient for detecting the light intensity of the treatment lamp (2). Then, the surface condition of the skin to be treated is visually observed by using the test light source (11) in conjunction with the skin concave mirror (10). S2, Treatment parameter synchronous calibration: Based on the detection data in step S1, after the control system reads the parameters of the last red and blue light treatment, the various parameters of the treatment device are adjusted using components such as stepper motor (23) and distance sensor (21) according to the latest state of the surface of the skin to be treated by the user. S3. Treatment parameter update and storage: After the treatment parameters are updated in step S2, the control system archives the latest parameters so that the subsequent control system can form a comprehensive file based on the patient's treatment situation each time, which meets the needs of long-term use of the red and blue light therapy device.