Mini-LED ultraviolet radiation system

Abstract

The invention discloses a mini-LED ultraviolet irradiation system, which takes an ultraviolet mini-LED array as an ultraviolet light source, acquires an image of a lesion area through a camera and transmits the image to a micro-processing system, an image processing unit of the micro-processing system processes the image, extracts the shape and distance of the lesion area and transmits data to an irradiation control unit, and the irradiation control unit controls the micro-processing system to perform irradiation. The irradiation control unit row and column driving circuit lightens a specific LED in the ultraviolet mini-LED array in an addressing mode, so that the light spot shape of the ultraviolet light beam corresponds to the lesion area, the ultraviolet light beam is projected to the lesion area through the optical system, the shape and size of the ultraviolet light spot correspond to the lesion area, and therefore precise irradiation on the lesion area is achieved.

Description

Technical Field

[0001] The present invention relates to an ultraviolet light therapy system, and in particular to a mini-LED ultraviolet LED irradiation system. Background Art

[0002] With the development of medical technology, ultraviolet light therapy is increasingly used in the treatment of skin diseases. However, existing ultraviolet light therapy equipment often cannot avoid damaging healthy skin during the irradiation process. Therefore, how to achieve accurate irradiation of ultraviolet light has become an urgent problem to be solved.

[0003] Mini LED is an advanced display technology that uses smaller LED chips (usually less than 100 microns) to achieve high-density LED arrays. The technology can achieve precise control of local areas and is generally used as a backlight source for liquid crystal displays in existing technologies.

[0004] Therefore, the present invention combines Mini LEDD technology to provide a mini-LED ultraviolet irradiation system to solve the above-mentioned problems in the prior art, achieve precise irradiation of the lesion area, improve the treatment effect, and reduce damage to healthy skin. Summary of the invention

[0005] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention.

[0006] To achieve the above-mentioned objectives, the present invention provides a mini-LED ultraviolet irradiation system, which uses an ultraviolet mini-LED array as an ultraviolet light source, collects images of the lesion area through a camera, and transmits them to a microprocessor system. After the image processing unit of the microprocessor processes the image, it extracts the shape and distance of the lesion area, and transmits the data to the irradiation control unit. The row and column driving circuit of the irradiation control unit lights up specific LEDs in the ultraviolet mini-LED array in an addressed manner, so that the spot shape of its ultraviolet light beam corresponds to the lesion area, and projects the ultraviolet light beam to the lesion area through an optical system, so that the shape and size of the ultraviolet spot correspond to the lesion area, thereby achieving precise irradiation of the lesion area.

[0007] Furthermore, the focusing lens unit of the optical system converges the ultraviolet light beam emitted by the ultraviolet mini-LED array and directs it toward the reflector unit. The reflector unit adjusts the angle and reflects the ultraviolet light beam toward the diseased area after passing through the astigmatism lens unit. The astigmatism lens unit diffuses the ultraviolet light according to the distance data of the diseased area, so that the shape and size of the ultraviolet light spot correspond to the diseased area, thereby achieving precise irradiation.

[0008] Furthermore, the image processing unit of the microprocessor system simultaneously analyzes the chromaticity data of the lesion area, thereby distinguishing the severity of the lesion in each part of the lesion area according to the chromaticity and transmitting the data to the irradiation control unit. The irradiation control unit lights up specific LEDs through the row and column driving circuits and uses PWM to adjust the brightness of each LED, so that the LEDs in the areas with severe lesions are brighter, increasing their ultraviolet irradiation values, while the LEDs in the areas with lighter lesions are darker, reducing their ultraviolet irradiation values.

[0009] Furthermore, the mini-LED array is forced to be cooled by air cooling or water cooling.

[0010] The present invention has the following technical effects:

[0011] (1) Achieve precise irradiation of the lesion area:

[0012] By using a high-density arranged ultraviolet mini-LED array as the light source, combined with a camera, image processing and optical system, the diseased area can be accurately located and irradiated, avoiding unnecessary exposure to healthy skin.

[0013] (2) Improve treatment effect and reduce damage to healthy skin:

[0014] By precisely irradiating the lesion area, the treatment can be effectively focused and the treatment effect can be improved. At the same time, the irradiation to the surrounding healthy skin can be reduced, reducing the damage to it.

[0015] (3) Accurate control of radiation dose through PWM technology:

[0016] The system can adjust the brightness of each LED through PWM according to the analysis results of the severity of the lesion area, thereby implementing differentiated irradiation doses for lesion areas of different severity.

[0017] (4) Use forced cooling technology to solve the problem of light source heat dissipation:

[0018] By centrally cooling the ultraviolet mini-LED array using air cooling or water cooling, the heat dissipation problem of the ultraviolet light source can be effectively solved, thereby increasing the available power of the light source.

[0019] In summary, the mini-LED ultraviolet irradiation system of the present invention realizes precise positioning of the diseased area and regulation of irradiation dose, improves the treatment effect and reduces damage to healthy skin. At the same time, it solves the heat dissipation problem of the light source through advanced cooling technology. It is an innovative ultraviolet light treatment technology solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the mini-LED ultraviolet irradiation system of the present invention.

[0021] Figure 2 It is a principle block diagram of the mini-LED ultraviolet irradiation system of the present invention. DETAILED DESCRIPTION

[0022] The following describes several preferred embodiments of the present invention with reference to the drawings in the specification, so that the technical content is clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned in the text.

[0023] like Figure 1 and 2 As shown, a mini-LED ultraviolet irradiation system according to the present invention includes an ultraviolet mini-LED array 1, a row and column driving circuit 2, a microprocessor system 3, a camera 4, an optical system focusing lens unit 5, an optical system reflector unit 6, and an optical system astigmatism lens unit 7. The ultraviolet mini-LED array 1 is composed of ultraviolet mini-LEDs arranged in a high density, thereby forming a controllable high-energy light source, and the row and column driving circuit 2 can control the switches of rows and columns to achieve individual control of the state of each LED in an addressing manner. The camera 4 acquires an image of the skin area and transmits it to the microprocessor system 3. The image processing unit of the microprocessor system 3 identifies the shape and distance of the lesion area 8 through machine learning or computer vision technology, and transmits the identified data to the irradiation control unit. The irradiation control unit lights up a specific LED in the ultraviolet mini-LED array 1 through the row and column driving circuit 2 so that the spot shape of its ultraviolet light beam corresponds to the lesion area. The focusing lens unit 5 of the optical system converges the ultraviolet light beam emitted by the ultraviolet mini-LED array 1 and directs it toward the reflector unit 6. The reflector unit 6 adjusts the angle and reflects the ultraviolet light beam toward the lesion area after passing through the astigmatism lens unit 7. The astigmatism lens unit 7 diffuses the ultraviolet light according to the distance data of the lesion area, so that the shape and size of the ultraviolet spot correspond to the lesion area, thereby achieving precise irradiation.

[0024] Furthermore, the image processing unit of the microprocessor system 3 simultaneously analyzes the chromaticity (grayscale) data of the lesion area, thereby distinguishing the severity of the lesions in each part of the lesion area and transmitting the data to the irradiation control unit. The irradiation control unit uses PWM (pulse width modulation) to adjust the brightness of each LED while lighting a specific LED through the row and column drive circuit 2. PWM (pulse width modulation) is a technology that can control the brightness of LEDs by adjusting the time ratio of the "on" and "off" of the electrical signal. Its basic principle is: the PWM signal is a square wave. By changing the duty cycle of the square wave (i.e., the ratio of the "on" time to the total cycle), the average value of the output voltage can be adjusted. The higher the duty cycle, the brighter the LED; the lower the duty cycle, the darker the LED. Compared with linear dimming, PWM does not adjust the current size, but reduces energy loss through time control. At the same time, by fine-tuning the duty cycle, very fine brightness control can be achieved, and the LED can quickly respond to changes in the PWM signal to achieve real-time adjustment. Therefore, a PWM signal can be generated by the irradiation control unit of the microprocessor system 3, and the brightness of the specific LED can be adjusted by adjusting the duty cycle of the specific LED, so that the LED at the location where the lesion is serious is brighter, increasing its ultraviolet irradiation value, while the LED at the location where the lesion is lighter is darker, reducing its ultraviolet irradiation value.

[0025] Compared with the existing technology of using distributed light sources to achieve precise irradiation, the present invention uses the ultraviolet mini-LED array 1 as the ultraviolet light source. Another advantage is that the heat dissipation problem of the ultraviolet light source can be solved by using air cooling or even water cooling to centrally force the mini-LED array to cool, thereby further improving the available power of the ultraviolet light source.

[0026] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A mini-LED ultraviolet irradiation system, characterized in that: Using the ultraviolet mini-LED array as the ultraviolet light source, the image of the lesion area is collected through the camera and transmitted to the microprocessor system. After processing the image, the image processing unit of the microprocessor extracts the shape and distance of the lesion area, and transmits the data to the irradiation control unit. The row and column driving circuit of the irradiation control unit lights up specific LEDs in the ultraviolet mini-LED array in an addressed manner, so that the spot shape of its ultraviolet light beam corresponds to the lesion area, and projects the ultraviolet light beam to the lesion area through the optical system, so that the shape and size of the ultraviolet spot correspond to the lesion area, thereby achieving precise irradiation of the lesion area.

2. The mini-LED ultraviolet irradiation system according to claim 1, wherein: The focusing lens unit of the optical system converges the ultraviolet light beam emitted by the ultraviolet mini-LED array and directs it toward the reflector unit. The reflector unit adjusts the angle and reflects the ultraviolet light beam toward the diseased area after passing through the astigmatism lens unit. The astigmatism lens unit diffuses the ultraviolet light according to the distance data of the diseased area, so that the shape and size of the ultraviolet spot correspond to the diseased area, thereby achieving precise irradiation.

3. The mini-LED ultraviolet irradiation system according to claim 1, wherein: The image processing unit of the microprocessor system simultaneously analyzes the chromaticity data of the lesion area, thereby distinguishing the severity of the lesion in each part of the lesion area according to the chromaticity and transmitting the data to the irradiation control unit. The irradiation control unit lights up specific LEDs through the row and column drive circuits and uses PWM to adjust the brightness of each LED, so that the LEDs in the areas with severe lesions are brighter, increasing their ultraviolet irradiation values, while the LEDs in the areas with lighter lesions are darker, reducing their ultraviolet irradiation values.

4. The mini-LED ultraviolet irradiation system according to claim 1, wherein: The mini-LED array is forced to be cooled by air cooling or water cooling.

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