Implementation method for UVB lamp bead screening and vitamin D3 synthesis improvement

Abstract

The invention belongs to the technical field of ultraviolet phototherapy, and particularly relates to a method for realizing UVB lamp bead screening and vitamin D synthesis improvement, which comprises the following steps: selecting UVB lamp bead parameters: dividing the UVB lamp bead parameters into key parameters, main parameters and general parameters; the UVB lamp bead inspection standards comprise inspection equipment, inspection equipment benchmarking, inspection operation flow and inspection error analysis; setting a UVB lamp bead matrix: adjusting the number of lamp beads according to the size of an area light source, and adjusting matrix arrangement according to a driving current and a light chamber; de-noising the UVB spectrum: determining an effective wavelength range of the spectrum by adopting a background light removal method; and calculating the synthesis efficiency of the vitamin D: calculating the efficiency based on the UVB spectrum effective wavelength range and a vitamin D synthesis efficiency model.

Description

Technical Field

[0001] The present invention belongs to the technical field of ultraviolet light therapy, and in particular relates to a method for screening UVB lamp beads and enhancing vitamin D3 synthesis. Background Art

[0002] Vitamin D3 is an essential nutrient for maintaining life in higher animals and crucial for bone health, yet vitamin D3 deficiency is widespread. A study of 2,173 Chinese residents found that 94.6% had varying degrees of vitamin D3 deficiency. While vitamin D3 can be supplemented through sunlight and dietary intake, insufficient sunlight exposure is common due to lifestyle, work, and other factors. Coupled with the shorter daylight hours and weaker ultraviolet rays in winter, as well as a lack of outdoor activities in winter and spring, diseases caused by vitamin D3 deficiency are increasing year by year among urban residents. Existing phototherapy technologies primarily utilize UVB wavelengths (280-320nm). UVB rays have an erythematous effect on the human body, but UVB exposure can promote mineral metabolism and the efficient synthesis of vitamin D3.

[0003] While UVB phototherapy has demonstrated significant application value in promoting vitamin D3 synthesis, existing methods still suffer from significant technical shortcomings. Lamp screening lacks precise, hierarchical control of parameters such as peak wavelength, half-wavelength width, and light radiation flux, and testing equipment lacks a standardized benchmarking mechanism, leading to the infiltration of substandard lamps and compromising spectral effectiveness. Lamp matrix layout often relies on empirical design, without quantitative optimization of surface light source size, drive current, and optical chamber structure, which can lead to uneven energy distribution across the irradiated area. Spectral processing fails to effectively eliminate low-intensity noise bands, and synthesis efficiency calculation lacks a precise model coupled with actual spectral characteristics, resulting in a discrepancy between theoretical efficiency and actual results. With the increasing problem of vitamin D3 deficiency associated with urbanization and the rapid growth of market demand for artificial phototherapy devices, the shortcomings of existing technologies in spectral energy utilization, device compatibility, and synthesis efficiency stability have become increasingly prominent. A systematic solution encompassing lamp screening, layout design, spectral optimization, and efficiency calculation is urgently needed to overcome traditional technical bottlenecks and enhance the practicality and reliability of phototherapy equipment. Summary of the Invention

[0004] In response to the technical problems existing in the above-mentioned existing UVB phototherapy technology, the present invention provides a method for screening UVB lamp beads and improving vitamin D3 synthesis.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: A method for screening UVB lamp beads and enhancing vitamin D3 synthesis, comprising: Parameter selection of UVB lamp beads: UVB lamp beads parameters are divided into key parameters, main parameters and general parameters; Inspection standards for UVB lamp beads: including inspection equipment, inspection equipment benchmarking, inspection operation procedures and inspection error analysis; UVB lamp matrix settings: adjust the number of lamps according to the size of the surface light source, and adjust the matrix arrangement according to the driving current and light chamber; Denoising of UVB spectrum: Background light removal method is used to determine the effective wavelength range of the spectrum; Calculation of vitamin D3 synthesis efficiency: The efficiency is calculated based on the effective wavelength range of the UVB spectrum and the vitamin D3 synthesis efficiency model.

[0006] The key parameters include peak wavelength, half-wave width and 1 / 10 wave width, among which the peak wavelength is 297nm±3nm, the half-wave width is 9~12nm, and the 1 / 10 wave width is ≤25nm. If any parameter is unqualified, the lamp bead is unqualified.

[0007] The main parameters include light radiation flux and grading. Under the rated driving current of 10mA, the light radiation flux ranges from 1.6mW to 4.0mW, and the grading is (N+0.1)mW, where N is a non-negative integer multiple of 0.05, and the allowable error is ≤±10%. If any parameter fails to meet the requirements as a whole, the lamp bead is unqualified.

[0008] The general parameters include rated drive current (10mA±5%), maximum drive current (100mA±5%), drive voltage range (4.0V~6.0V), luminous angle (≥110°), epitaxial chip (1020 or 2020) and package (3030 or 3535), which need to be combined with drive circuit analysis or be indicators that are easy for suppliers to achieve.

[0009] The inspection equipment is an ultraviolet light detection integrating sphere, and its core components include a standard instrument and a spectrometer. The wavelength detection range is required to include 200nm to 400nm, the spectral resolution is ≤0.1nm, and the minimum order of magnitude of the radiation flux is ≤0.1mW.

[0010] The inspection equipment benchmarking is to benchmark the spectral parameters of the supplier's and the user's integrating spheres and sorting machines to ensure that the supply parameters of the lamp beads are consistent with the demand parameters.

[0011] In the UVB lamp bead matrix, the distance between the lamp beads is (K+0.5cm) between the center points of adjacent rows and columns, where K is a non-negative integer multiple of 0.1, and the shortest distance between the edge lamp beads and the edge of the light board is (P+0.3)cm, where P is a non-negative integer multiple of 0.1.

[0012] In the UVB spectrum denoising, 0.1 μW / cm² is used as the light irradiance limit value, and the band below this value is regarded as noise; the starting point of the spectrum denoising is the minimum wavelength where the light irradiance intensity is continuously ≥ the limit value, and the ending point is the maximum wavelength.

[0013] The theoretical effective wavelength range in the calculation of vitamin D3 synthesis efficiency is 263nm to 312nm. The final effective wavelength range is the intersection of the denoised spectrum and the theoretical effective wavelength range. The calculation formula is: in, Indicates the final effective wavelength range, is the minimum wavelength, is the maximum wavelength.

[0014] The vitamin D3 synthesis efficiency calculation formula is: in The ratio of vitamin D3 synthesis within the final effective wavelength range is the efficiency of vitamin D3 synthesis. is the UV radiation intensity at wavelength λ, The wavelength is λ When vitamin D3 synthesis efficiency is weighted, is the wavelength bandwidth.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention establishes a multi-level screening system by scientifically classifying UVB lamp parameters into key parameters, main parameters, and general parameters. Among the key parameters, strict limits on peak wavelength (297nm±3nm), half-wavewidth (9-12nm), and 1 / 10 wavelength (≤25nm) ensure that the lamp emission spectrum is concentrated in the core effective band for vitamin D synthesis, eliminating substandard products with large spectral deviations at the source. The main parameters, including tiered control of light radiation flux (1.6mW to 4.0mW, with a tiered accuracy of 0.1mW) and specification of general parameters such as drive current and voltage, ensure the stability of the lamp's luminous performance while adapting to mainstream drive circuit designs and improving device compatibility.

[0016] 2. This invention utilizes an integrating sphere for UV detection as its core testing equipment. Its wavelength detection range (200nm-400nm), spectral resolution (≤0.1nm), and radiant flux detection accuracy (≤0.1mW) meet the requirements for precise UVB spectrum detection. Through a supplier-user equipment benchmarking mechanism, systematic errors across different testing platforms are eliminated, ensuring that the supplied parameters of the lamp beads fully match actual application requirements and preventing fluctuations in vitamin D3 synthesis efficiency due to parameter drift. The testing process and error analysis steps further enhance screening reliability, providing quality assurance for large-scale production.

[0017] 3. This invention dynamically adjusts the number of lamp beads based on the size of the surface light source and optimizes the matrix layout based on the drive current and light chamber structure. Through quantitative design of the lamp bead spacing (K + 0.5cm) and edge distance (P + 0.3cm), it achieves uniform distribution of UV radiation intensity within the irradiation area. This layout effectively avoids the edge light decay problem of traditional lamp panels, ensuring that UVB energy received by all points on the illuminated object's surface is balanced, providing a stable lighting environment for vitamin D3 synthesis. It is particularly suitable for engineering applications of large-area phototherapy equipment.

[0018] 4. This invention uses 0.1 μW / cm² as the light irradiation intensity limit, determines the effective spectral range through continuous threshold detection, and eliminates low-intensity noise bands, precisely focusing the final effective wavelength range at the intersection of the theoretical synthesis range (263nm-312nm) and the actual spectrum. This denoising method effectively filters out ineffective UV radiation and concentrates energy on the key wavelengths for vitamin D3 synthesis, reducing energy consumption while avoiding potential harm to the human body from unnecessary wavelengths.

[0019] 5. The present invention is based on an integral calculation model of the weighted value of ultraviolet radiation intensity and vitamin D3 synthesis efficiency, and quantifies the contribution of different wavelengths to the synthesis efficiency through mathematical modeling. This model not only provides a quantifiable efficiency evaluation standard for lamp bead screening, but also guides the spectral optimization design of phototherapy equipment - by adjusting the lamp bead matrix parameters or driving current, the energy distribution within the effective wavelength range is dynamically optimized to maximize the vitamin D3 synthesis efficiency. According to actual measurements, the phototherapy equipment using this method has a synthesis efficiency improvement of more than 30% compared to the traditional scheme, and the energy utilization rate is improved by 25%, significantly enhancing the practicality and economy of UVB phototherapy technology.

[0020] This comprehensive technology system, from bead screening to efficiency improvement, accurately simulates the key spectral components of sunlight that promote vitamin D3 synthesis in a controlled indoor environment, overcoming the seasonal and regional limitations of natural sunlight. It is particularly suitable for scenarios such as winter sunlight shortages and long-term indoor office work, providing an efficient and safe technical solution for preventing and improving vitamin D3 deficiency-related diseases (such as osteoporosis and immunodeficiency), with significant social and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0022] The structures, proportions, sizes, etc. illustrated in this specification are intended solely to complement the contents disclosed herein and to facilitate understanding and reading by persons skilled in the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in sizes, without affecting the efficacy and objectives of the present invention, shall remain within the scope of the technical contents disclosed herein.

[0023] Figure 1 This is a schematic diagram of the structure of the UVB lamp matrix of the present invention; Figure 2 Schematic diagram of UVB spectrum denoising of the present invention; Figure 3 Schematic diagram of selection of effective wavelength range for calculation of vitamin D3 synthesis efficiency of the present invention; Figure 4 This is the vitamin D3 synthesis efficiency table from the paper "CIE 174:2006: ACTION SPECTRUM FOR THE PRODUCTION OF PREVITAMIN D3 IN HUMAN SKIN".

[0024] Where: 1 is the UVB lamp matrix, 1-1 is the UVB lamp, 1-2 is the UVB lamp board, 1-3 is the distance between the UVB lamps, 1-4 is the distance between the UVB lamps and the edge of the UVB lamp matrix, 2 is the UVB spectrum, 2-1 is the light irradiation intensity limit value for spectrum denoising, 2-2 is the starting point of spectrum denoising, 2-3 is the ending point of spectrum denoising, 3 is the UVB pure spectrum, 3-1 is the starting point of the effective wavelength range, and 3-2 is the ending point of the effective wavelength range. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of this application, not all the embodiments. These descriptions are only to further illustrate the features and advantages of the present invention, rather than to limit the claims of the present invention. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0026] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following embodiments are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0027] The present invention provides a method for screening UVB lamp beads and improving vitamin D3 synthesis, which comprises parameter selection of UVB lamp beads, inspection standards of UVB lamp beads, setting of a UVB lamp bead matrix, denoising of the UVB spectrum and calculation of vitamin D3 synthesis efficiency.

[0028] The UVB lamp bead parameters of the present invention include key parameters, main parameters and general parameters. The key parameters are key indicator parameters for whether the UVB lamp bead is qualified. Any failure in any parameter will be used as a basis for judging whether the UVB lamp bead is unqualified. The key parameters include peak wavelength, half-wave width, and 1 / 10 wave width; the peak wavelength is 297nm±3nm, the half-wave width is 9-12nm, and the 1 / 10 wave width is no more than 25nm. The main parameters are the main indicator parameters for the safety and reliability of the conversion between the electrical performance and optical performance of UVB lamp beads. They need to be analyzed in conjunction with the specific driving circuit to determine the numerical range, error range and allowable failure rate of the main parameters. Taking into account the numerical range, error range and allowable failure rate of each main parameter, the overall failure of any main parameter will be used as the basis for judging the failure of UVB lamp beads. The main parameters include: light radiation flux, light radiation flux classification; at the rated driving current of 10mA, the light radiation flux range is 1.6mW~4.0mW, the light radiation flux classification is (N+0.1)mW, N is a non-negative integer multiple of 0.05, and the allowable error is not higher than ±10%. General parameters are non-critical parameters for the safe and stable operation of UVB lamp beads. They need to be analyzed in conjunction with the specific drive circuit to determine the numerical range, error range and allowable failure rate of the general parameters, or suppliers can easily achieve these parameters as indicators that are not a R&D problem. Taking into account the numerical range, error range and allowable failure rate of each general parameter, the overall failure of the general parameters needs to be analyzed and judged based on actual use, and then used as the basis for determining whether the UVB lamp beads are qualified. General parameters include rated drive current, maximum drive current, drive voltage range, drive voltage classification, light-emitting angle, epitaxial chip size and package size; the rated drive current is 10mA±5%, the maximum drive current is 100mA±5%, the drive voltage range is 4.0V~6.0V, the drive voltage classification is (M+0.1)V, M is a non-negative integer multiple of 0.05, the allowable error is not higher than ±5%, the light-emitting angle is not less than 110°, the epitaxial chip uses 1020 or 2020, and the package uses 3030 or 3535.

[0029] The inspection standards for UVB lamp beads of the present invention include inspection equipment for UVB lamp beads, benchmarking of inspection equipment for UVB lamp beads, inspection operation procedures for UVB lamp beads, and inspection error analysis of UVB lamp beads. The inspection equipment for UVB lamp beads is an integrating sphere for ultraviolet light detection, with core components being a standard and a spectrometer. The inspection wavelength range is required to include the UVB band of 200nm to 400nm, the spectral wavelength resolution is required to be no greater than 0.1nm, and the minimum order of magnitude of the spectral radiation flux is required to be no greater than 0.1mW. Benchmarking of inspection equipment for UVB lamp beads refers to benchmarking the spectral parameters of the integrating sphere or sorting machine used by the UVB lamp bead supplier with the integrating sphere used by the UVB lamp bead user to ensure the consistency of the supply parameters of the UVB lamp beads with the numerical values ​​of the demand parameters. The UVB lamp inspection process is agreed upon by UVB lamp users and UVB lamp suppliers. Integrating sphere operating procedures are developed and implemented. These procedures are used by both UVB lamp suppliers and users to ensure they adhere to a unified process when inspecting UVB lamps. This prevents inconsistencies in the inspection process from causing errors in the inspection method. UVB lamp inspection error analysis includes objective errors (i.e., equipment error and benchmarking error) and subjective errors (i.e., inspection method error, environmental error, and human error). Equipment error is objective and can be eliminated, but can be relatively reduced through equipment benchmarking. Inspection method error is subjective and can be eliminated through consistency of inspection methods. Environmental error is subjective and can be largely mitigated through benchmarking against environmental requirements. Human error is subjective and can be reduced through operator training and assessment. By analyzing UVB lamp inspection errors, the magnitude of each error and the proportion of influencing factors are determined, facilitating effective error control and elimination. Combined with actual product tolerances, practical and efficient standards for UVB lamp inspection are identified.

[0030] The UVB lamp bead matrix 1 of the present invention is arranged as follows Figure 1 As shown, the UVB lamp matrix 1 includes UVB lamp beads 1-1, UVB lamp panels 1-2, UVB lamp spacing 1-3, and distances 1-4 between the UVB lamp beads and the edge of the UVB lamp matrix. UVB lamp beads 1-1 are welded to UVB lamp panels 1-2, forming a regular matrix distribution of point light sources within the UVB lamp matrix, producing a UVB spectrum that efficiently synthesizes vitamin D3. The UVB lamp spacing 1-3 defines the distance between the center points of adjacent lamp beads in rows and columns, which is (K + 0.5) cm, where K is a non-negative integer multiple of 0.1. The distances 1-4 between the UVB lamp beads and the edge of the UVB lamp matrix define the shortest horizontal and vertical distances between the UVB lamp beads at the edge and the adjacent UVB lamp panel 1-2, which is (P + 0.3) cm, where P is a non-negative integer multiple of 0.1. The number of UVB lamp beads, the UVB lamp spacing 1-3, and the distances 1-4 between the UVB lamp beads and the edge of the UVB lamp matrix form the regular pattern of the lamp matrix.

[0031] The UVB spectrum denoising of the present invention is as follows Figure 2 As shown, UVB spectrum 2 includes a light irradiation intensity limit value 2-1 for spectrum denoising, a starting point 2-2 for spectrum denoising, and an ending point 2-3 for spectrum denoising. The light irradiation intensity limit value 2-1 for spectrum denoising is the intensity limit value of the spectrum noise. According to the smallest light irradiation intensity test instrument currently on the market, the accuracy is 0.1μW / cm 2 Set the light irradiance intensity limit value 2-1 for spectrum denoising to 0.1 μW / cm 2 , the bands below this value are optimized as noise; the starting point 2-2 of spectral denoising is the minimum wavelength corresponding to when the light irradiation intensity in UVB spectrum 2 is continuously not lower than the light irradiation intensity limit value 2-1 of spectral denoising; the ending point 2-3 of spectral denoising is the maximum wavelength corresponding to when the light irradiation intensity in UVB spectrum 2 is continuously not lower than the light irradiation intensity limit value 2-1 of spectral denoising; the starting point 2-2 and the ending point 2-3 of spectral denoising and the intermediate wavelengths constitute the effective wavelength range of the UVB spectrum.

[0032] The calculation of the vitamin D3 synthesis efficiency of the present invention is as follows: Figure 3 As shown, the UVB pure spectrum 3 (i.e., the UVB denoised spectrum) includes the starting point 3-1 of the effective wavelength range and the ending point 3-2 of the effective wavelength range. Figure 4 As shown, the effective range of the UVB pure spectrum is selected based on the vitamin D3 synthesis efficiency of not less than 0.1 in Table 1 of the paper "CIE 174:2006: ACTION SPECTRUM FOR THE PRODUCTION OF PREVITAMIN D3 IN HUMAN SKIN" as the limit value. Then the starting point 3-1 of the effective wavelength range is 263nm, and the ending point 3-2 of the effective wavelength range is 312nm. The range of UVB pure spectrum 3 is 263nm to 312nm. The calculation of vitamin D3 synthesis efficiency requires the intersection of the effective wavelength range of the UVB spectrum after denoising UVB spectrum 2 and the UVB pure spectrum 3 as the final effective wavelength range of vitamin D3 synthesis efficiency; the final effective wavelength range of vitamin D3 synthesis efficiency includes the minimum wavelength , maximum wavelength and the middle wavelength, the calculation formula is: in, Indicates the final effective wavelength range, is the minimum wavelength, is the maximum wavelength.

[0033] The formula for calculating the efficiency of vitamin D3 synthesis is: in The ratio of vitamin D3 synthesis within the final effective wavelength range is the efficiency of vitamin D3 synthesis. is the UV radiation intensity at wavelength λ, The wavelength is λ When vitamin D3 synthesis efficiency is weighted, is the wavelength bandwidth.

[0034] The method of the present invention is a method for screening UVB lamp beads and improving vitamin D3 synthesis, which aims to provide an innovative method that can meet the needs of efficient vitamin D3 improvement, and provide guidance for verifying the use of UVB spectrum for efficient vitamin D3 synthesis experiments and medical device research and development and manufacturers' research on the use of UVB spectrum for efficient vitamin D3 synthesis products.

[0035] The above only describes in detail the preferred embodiments of the present invention, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in this field without departing from the purpose of the present invention, and various changes should be included in the scope of protection of the present invention.

Claims

1. A method for UVB lamp bead screening and vitamin D3 synthesis enhancement, characterized in that: include: Parameter selection of UVB lamp beads: UVB lamp beads parameters are divided into key parameters, main parameters and general parameters; Inspection standards for UVB lamp beads: including inspection equipment, inspection equipment benchmarking, inspection operation procedures and inspection error analysis; UVB lamp matrix settings: adjust the number of lamps according to the size of the surface light source, and adjust the matrix arrangement according to the driving current and light chamber; Denoising of UVB spectrum: Background light removal method is used to determine the effective wavelength range of the spectrum; Calculation of vitamin D3 synthesis efficiency: The efficiency is calculated based on the effective wavelength range of the UVB spectrum and the vitamin D3 synthesis efficiency model.

2. The method for screening UVB lamp beads and enhancing vitamin D3 synthesis according to claim 1, characterized in that: The key parameters include peak wavelength, half-wave width and 1 / 10 wave width, among which the peak wavelength is 297nm±3nm, the half-wave width is 9~12nm, and the 1 / 10 wave width is ≤25nm. If any parameter is unqualified, the lamp bead is unqualified.

3. The method for screening UVB lamp beads and enhancing vitamin D3 synthesis according to claim 1, characterized in that: The main parameters include light radiation flux and grading. Under the rated driving current of 10mA, the light radiation flux ranges from 1.6mW to 4.0mW, and the grading is (N+0.1)mW, where N is a non-negative integer multiple of 0.05, and the allowable error is ≤±10%. If any parameter fails to meet the requirements as a whole, the lamp bead is unqualified.

4. The method for implementing UVB lamp screening and vitamin D3 synthesis enhancement according to claim 1, characterized in that: The general parameters include rated drive current (10mA±5%), maximum drive current (100mA±5%), drive voltage range (4.0V~6.0V), luminous angle (≥110°), epitaxial chip (1020 or 2020) and package (3030 or 3535), which need to be combined with drive circuit analysis or be indicators that are easy for suppliers to achieve.

5. The method for implementing UVB lamp screening and vitamin D3 synthesis enhancement according to claim 1, characterized in that: The inspection equipment is an ultraviolet light detection integrating sphere, and its core components include a standard instrument and a spectrometer. The wavelength detection range is required to include 200nm to 400nm, the spectral resolution is ≤0.1nm, and the minimum order of magnitude of the radiation flux is ≤0.1mW.

6. The method for implementing UVB lamp screening and vitamin D3 synthesis enhancement according to claim 1, characterized in that: The inspection equipment benchmarking is to benchmark the spectral parameters of the supplier's and the user's integrating spheres and sorting machines to ensure that the supply parameters of the lamp beads are consistent with the demand parameters.

7. The method for selecting UVB lamp beads and enhancing vitamin D3 synthesis according to claim 1, characterized in that: In the UVB lamp bead matrix, the distance between the lamp beads is (K+0.5cm) between the center points of adjacent rows and columns, where K is a non-negative integer multiple of 0.1, and the shortest distance between the edge lamp beads and the edge of the light board is (P+0.3)cm, where P is a non-negative integer multiple of 0.

1.

8. The method for selecting UVB lamp beads and improving vitamin D3 synthesis according to claim 1, characterized in that: In the UVB spectrum denoising, 0.1 μW / cm² is used as the light irradiance limit value, and the band below this value is regarded as noise; the starting point of the spectrum denoising is the minimum wavelength where the light irradiance intensity is continuously ≥ the limit value, and the ending point is the maximum wavelength.

9. The method for implementing UVB lamp screening and vitamin D3 synthesis enhancement according to claim 1, characterized in that: The theoretical effective wavelength range in the calculation of vitamin D synthesis efficiency is 263 nm to 312 nm. The final effective wavelength range is the intersection of the denoised spectrum and the theoretical effective wavelength range. The calculation formula is: in, Indicates the final effective wavelength range, is the minimum wavelength, is the maximum wavelength.

10. The method for selecting UVB lamp beads and enhancing vitamin D3 synthesis according to claim 9, characterized in that: The vitamin D3 synthesis efficiency calculation formula is: in The ratio of vitamin D3 synthesis within the final effective wavelength range is the efficiency of vitamin D3 synthesis. is the UV radiation intensity at wavelength λ, The wavelength is λ When vitamin D3 synthesis efficiency is weighted, is the wavelength bandwidth.

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