Multiband phototherapy ultra-thin strip lamp integrating terahertz wave regulation and biomagnetic effect

Abstract

The application discloses a multi-band light therapy ultra-thin line lamp integrated with terahertz wave regulation and biological magnetic effect, and belongs to the technical field of light therapy and health care instruments. The line lamp is 0.4-0.6 mm thick, and comprises a flexible base material layer, a light-emitting module, a terahertz regulation layer, a negative ion and biological magnetic composite layer and an antibacterial layer. The negative ion and biological magnetic composite layer adopts an intrinsic spontaneous ionization material, spontaneously releases high-concentration negative ions, and is integrated with magnetic powder; the terahertz regulation layer comprises a plurality of metal / mineral composite materials, has the on / off absorption state / non-absorption state switching effect and constant non-absorption state characteristics in the 3.9-4.0 THz state with or without power supply; the light-emitting module is integrated with multi-band LED chips; and the antibacterial layer contains nano-silver and nano-zinc oxide. The application organically integrates multi-band pulsed light, negative ions, terahertz waves, biological magnetism and antibacterial functions in the ultra-thin thickness, realizes the synergistic effect of multiple physical fields, and takes into account civil health care and medical repair.

Description

Technical Field

[0001] This invention relates to the field of phototherapy and health care equipment technology, specifically to an ultra-thin multi-functional linear light with a thickness of 0.4-0.6 mm, which integrates multi-band pulsed phototherapy, intrinsically self-ionized high-concentration negative ion release, terahertz wave intelligent control, biomagnetic effect and metal / mineral antibacterial function, and can be used in the fields of civilian health care and medical deep repair. Background Technology

[0002] Phototherapy, as a non-invasive physical therapy method, has broad application prospects in fields such as skin aesthetics, anti-inflammatory repair, and tissue regeneration. Currently, most phototherapy cosmetic devices focus on the visible to near-infrared band (such as red light, blue light, yellow light, and near-infrared light), using specific wavelengths of light energy to act on target points in various layers of the skin to achieve effects such as promoting collagen synthesis, killing Propionibacterium acnes, inhibiting melanin production, and promoting cell metabolism.

[0003] In recent years, terahertz waves (0.1–10 THz) have shown great potential in cell metabolism regulation and anti-inflammatory repair due to their resonance effect with the hydrogen bond vibrations and rotational energy levels of biological macromolecules. Studies have shown that terahertz waves can affect the hydrogen bond network structure of water molecule clusters, thereby regulating body fluid activity and cellular metabolic state. However, current phototherapy devices have not yet involved active modulation of the terahertz band, nor have they systematically integrated terahertz wave technology into phototherapy products.

[0004] Meanwhile, negative ion technology, as a passive physical therapy, has been proven to have positive effects on the human body, such as anti-oxidation, regulation of autonomic nerve function, and improvement of microcirculation. Although there have been attempts to apply negative ion materials to health care products in existing technologies, the following shortcomings are generally present: (1) Most of them rely on high-voltage ionization or light / piezoelectric external field excitation, which poses safety hazards and structural complexity problems; (2) The concentration of negative ions released is low and the stability is poor, making it difficult to meet the needs of continuous care; (3) The release of negative ions has not been systematically and deeply integrated with phototherapy, terahertz wave regulation, and biomagnetic effects.

[0005] In the field of biomagnetic technology, the efficacy of steady-state magnetic fields in promoting blood circulation, relieving pain, and assisting tissue repair has been widely verified. However, there are no reports in the existing technology of synergistic integration of biomagnetism with terahertz wave modulation, negative ion release, and multi-band phototherapy, nor are there clear standards for classifying the magnetic induction intensity of civilian and medical products.

[0006] Furthermore, existing phototherapy devices are mostly rigid structures with considerable thickness, making it difficult to conform to the body's curves and limiting their application in wearable care scenarios. Achieving ultra-thin flexibility while ensuring multifunctional integration is another technical challenge facing this field.

[0007] A search revealed that Chinese patent CN112920550A discloses a combination device of a terahertz converter and an LED array, but its terahertz conversion relies on a cup-shaped shell polymer structure, making flexible ultrathin integration difficult. Chinese patent CN211301767U discloses a device for treating skin diseases using terahertz waves combined with pulsed millimeter waves and mid-infrared radiation, but it does not involve the synergistic integration of negative ion release and biomagnetic effects. Existing far-infrared negative ion magnetic therapy patches, while achieving a combination of tourmaline, magnets, and negative ions, lack active control functionality in the terahertz band. None of the aforementioned prior art documents disclose or imply a technical solution integrating intrinsically self-releasing negative ions, intelligent terahertz wave transmission / absorption switching materials, biomagnetism, and multi-band pulsed light into an ultrathin flexible carrier of 0.4–0.6 mm, nor do they involve the synergistic enhancement mechanism between various physical fields.

[0008] In summary, the following technical problems urgently need to be solved in the existing technology: (1) How to achieve intrinsic spontaneous ionization and stable release of high-concentration negative ions without the need for high-voltage external field and without relying on light / piezoelectric excitation, and integrate them into an ultrathin flexible carrier; (2) How to achieve intelligent dual-function control of "absorption state / non-absorption state" of terahertz waves in a specific frequency band under different power-on states, and organically combine it with multi-band pulsed phototherapy; (3) How to organically integrate various physical / chemical factors such as negative ion release, terahertz wave modulation, biomagnetic effect and multi-band phototherapy within a nanometer-thickness to achieve synergistic effects beyond the superposition of single technologies. Summary of the Invention

[0009] To address the aforementioned issues, this invention provides a multi-band phototherapy ultrathin linear lamp that integrates terahertz wave modulation and biomagnetic effects.

[0010] To achieve the above objectives, the technical solution adopted by this invention is: a multifunctional composite phototherapy linear lamp with an overall thickness of 0.4–0.6 mm, comprising a flexible substrate layer, a light-emitting module, a terahertz modulation layer, a negative ion biomagnetic composite layer, and an antibacterial functional layer. Its core innovation lies in the first-ever organic integration of a multi-metal and / or mineral element functional composite material with a "terahertz wave switching effect," an intrinsically self-releasing high-concentration negative ion precision formulation system, multi-band pulsed phototherapy, and biomagnetic effects within a nanometer-thickness range.

[0011] 1. Negative Ion Biomagnetic Composite Layer – A Finely Formulated System Based on Intrinsic Spontaneous Ionization

[0012] The negative ion biomagnetic composite layer utilizes a self-releasing negative ion material that generates ions intrinsically without high voltage or external light / piezoelectric fields. Its core formula is selected from globally published precision formulas, enabling high-concentration negative ion release (up to 1.46 × 10⁻⁶) under standard operating conditions (25℃, normal pressure, RH 50%). 6 ~2.35×10 6 (ions / cm³). Considering the structural features and ultra-thin requirements of the linear light of this invention, the following preferred formulations can be used, but are not limited to: Preferred Formula 1 (Shanghai Institute of Ceramics, Chinese Academy of Sciences system, mass production grade S, medium cost): The mass ratio is 63.5% lithium tourmaline, 27.5% diatomaceous earth, 4.2% CeO2, and 4.8% carbon nanotubes (onion); the core particle size D50 is 25nm for tourmaline, 250 mesh for diatomaceous earth, and 12nm for rare earth elements; the preparation process is: high-energy ball milling in ethanol medium at 3400 rpm / 2h → vacuum drying at 60℃ for 8h → Ar / O2 plasma activation for 12min → nitrogen annealing at 330℃ for 1.2h; the negative ion concentration is 1.67 × 10⁻⁶. 6 ions / cm³; the performance retention rate of the coating after mixing is 94%, and the proportion of small-diameter ions is 92.5%.

[0013] Preferred Formula Two (Northwestern University system, mass production grade B, high cost): The mass ratio is 65.8% Nd-magnesium tourmaline, 8.2% few-layer V2CMXene, 24.5% SBA-15 molecular sieve, and 1.5% CeO2; the negative ion concentration is 2.12 × 10⁻⁶. 6 ions / cm³, surface potential -146mV; RH 20%-90% total humidity fluctuation <12%, small particle size ions account for 94.0%.

[0014] Preferred Formula 3 (Swiss EPFL system, mass production grade B, high cost): The mass ratio is 64.2% manganese lithium tourmaline solid solution, 26.8% nano-aluminosilicate, 3.5% La₂O₃, 1.5% Dy₂O₃, and 4.0% nano-germanium; the negative ion concentration is 2.03 × 10⁻⁶. 6 ions / cm³, surface potential -142mV; small-diameter ions account for 93.8%, and the retention rate at RH20% low humidity is 79%.

[0015] Preferred Formula 4 (Hong Kong University of Science and Technology system, mass production grade B, high cost): The mass ratio is 8.8% MoS2 (few-layered) and 91.2% nano-lithium tourmaline; the negative ion concentration is 1.72 × 10⁻⁶. 6 ions / cm³, concentration of 1.65×10⁻⁶ for 20μm flexible film 6 Small-diameter ions account for 94.3%, and the surface potential is -139mV, making it especially suitable for flexible skin-adhesive products.

[0016] Optimal Formula 5 (Guangzhou Institute of Advanced Technology, Chinese Academy of Sciences, Mass Production Grade S, Low Cost): The mass ratio is 61.8% iron tourmaline, 29.8% diatomaceous earth, 2.9% CeO2, 2.9% La2O3, and 2.6% nano-germanium; the negative ion concentration is 1.54 × 10⁻⁶. 6 ions / cm³; coating retention rate of 93%, plastic granulation retention rate of 88%, excellent adaptability for large-scale mass production.

[0017] The negative ion biomagnetic composite layer integrates rare earth magnetic powder (such as neodymium iron boron), and its magnetic induction intensity is designed according to the product application: the magnetic induction intensity of civilian products is equal to or lower than 100 Gauss (10mT); the magnetic induction intensity of medical products is greater than 100 Gauss to meet the needs of medical-grade treatment. The introduction of the biomagnetic field not only stabilizes the release of negative ions, but also forms a multi-physics synergistic effect with terahertz waves and pulsed light.

[0018] 2. Terahertz modulation layer – intelligent transmission / absorption switching effect of various metals and / or mineral elements

[0019] The terahertz modulation layer comprises a functional composite material containing various metal and / or mineral elements. This composite material can be integrated into the flexible substrate of the LED chip's encapsulation, fluorescent adhesive layer, or lamp body through coating, doping, blending, or impregnation.

[0020] Based on test results of samples prepared using different LED types and material ratios, the functional composite material exhibits unique and tunable terahertz wave absorption and emission characteristics. For example, the terahertz time-domain spectral characteristics of a combination of a white LED and a first-ratio composite material (material H) and a blue LED and a second-ratio composite material (material D) are described below: (1) Broadband absorption characteristics (0–3.6 THz): Regardless of whether the LED is energized or in a static state, the functional composite material exhibits absorption characteristics within a wide frequency range of 0–3.6 THz, with almost consistent radiation intensity before and after. Its benefits include: effectively absorbing background terahertz stray waves from the environment and the human body itself, creating an "electromagnetically clean" microenvironment, reducing disordered stimulation, and converting energy into beneficial local biological effects through resonant absorption.

[0021] It is important to emphasize that the aforementioned broadband absorption characteristics of 0–3.6 THz and the non-absorbing / absorbing state switching characteristics of the 3.9–4.0 THz band occur in different frequency ranges, and they do not overlap or conflict: the material is always in the absorbing state within the 0–3.6 THz range, while within the 3.9–4.0 THz range (outside the 0–3.6 THz range), the material can switch between the non-absorbing and absorbing states depending on the applied current. Both characteristics can be realized in parallel within the same material system without interference.

[0022] (2) Intelligent transmission / absorption switching effect of D material (3.9-4.0THz): D material (combined with blue LED and a variety of metal / mineral composite materials in a specific ratio) exhibits significant reverse response characteristics in the 3.9-4.0THz frequency band—when not powered (static conditions), it exhibits a non-absorption state (enhanced transmission) for terahertz waves in the 3.9-4.0THz frequency band, allowing terahertz waves in this frequency band to pass through; after being powered, it changes to an absorption state (weakened transmission). This characteristic makes D material a "smart transmission / absorption switch" for terahertz waves. When not powered, the terahertz waves in this frequency band that it allows to pass through correspond to the hydrogen bond vibration energy level of water molecule clusters, which can promote body fluid activity and cell metabolism; when powered, the bactericidal and anti-inflammatory effects of blue light are activated, and at the same time, the transmission of terahertz waves is turned off and converted to absorption, thereby intelligently balancing the photo-biological effects and avoiding excessive stimulation.

[0023] The mechanism is speculated to be as follows: Under energized conditions, the Joule heating or electric field effect generated by the LED chip alters the carrier concentration in the functional composite material, thereby modulating the imaginary part of the dielectric constant in the 3.9–4.0 THz frequency band, achieving a switch from a non-absorption state (high transmission) to an absorption state (low transmission). Since the H material contains manganese but not selenium, its band structure remains unchanged before and after energization, thus maintaining constant non-absorption characteristics. This mechanism is for illustrative purposes only and does not constitute any limitation on the present invention.

[0024] Further evidence for the mechanism is reported in the literature that the ZnSe nanosystem exhibits ultrafast carrier response characteristics in the terahertz band (displaying a Drude-Smith type photoconductive response under optically pumped-terahertz probe spectroscopy), and Cu-based nanomaterials also exhibit a Lorentz and Drude-Smith composite dielectric response in the terahertz band. In the Zn / Cu / Se / Ge quaternary nanocomposite system of this invention, changes in carrier concentration and mobility under energized conditions can modulate the imaginary part of the dielectric constant in the 3.9–4.0 THz frequency band, thereby achieving reversible switching between non-absorbing and absorbing states. The introduction of Se plays a crucial role in regulating the carrier relaxation time in this frequency band, which is the main reason why H materials (with Mn replacing Se) do not exhibit a switching effect.

[0025] To facilitate the reproduction of the technical solution of this invention by those skilled in the art, exemplary characterization data of material D in the 3.95THz frequency band are provided below (data format example, specific values ​​are subject to actual testing):

[0026] The data above shows that when no power is applied, material D exhibits high transmission (non-absorption state) for 3.95 THz terahertz waves, with low carrier concentration and a small imaginary part of the dielectric constant. After power is applied, the carrier concentration increases by approximately 40 times, the imaginary part of the dielectric constant increases, and the material switches to the absorption state. This synergistic modulation of the carrier concentration change and the imaginary part of the dielectric constant is the physical basis for achieving reversible switching between the non-absorption and absorption states in the 3.9–4.0 THz frequency band.

[0027] (3) Constant non-absorption state characteristics of H material (3.9–4.0 THz): H material (a combination of white LED and another specific ratio of various metal / mineral composite materials) consistently exhibits a non-absorption state (enhanced transmission) in the 3.9–4.0 THz frequency band, regardless of whether it is powered on or not, and there is a segment where the terahertz wave transmission intensity is higher than the background value. This characteristic allows continuous and stable terahertz waves to pass through and act on the human body, for deep cell activation, improvement of microcirculation, and assistance in anti-aging and anti-inflammation.

[0028] 3. Multi-band functional pulsed light module

[0029] The light-emitting module integrates LED chips of multiple wavelengths, and its parameters are configured based on published photobiology and dermatological research data from both domestic and international sources. Red light band (620-750nm, with peak values ​​preferably at 630nm and 660nm): Outputs in continuous or pulsed mode, penetrating to the dermis to promote collagen synthesis and blood circulation, and has effects on dark circles, anti-aging, and anti-inflammation. Blue light band (400-480nm, peak 415nm, 450nm): kills Propionibacterium acnes and other bacteria, achieving rapid anti-inflammatory and antibacterial effects; Yellow light band (570-590nm, peak 590nm): Reduces melanin production, brightens skin tone, and is used for whitening; Near-infrared band (780-1400nm, preferably 830nm or 940nm): Pulse output penetrates deep into subcutaneous tissue to promote cell metabolism and repair, and assist in anti-aging and inflammation reduction.

[0030] The aforementioned bands can be controlled independently or combined and activated at different times to achieve precise application for different levels of care.

[0031] 4. Antibacterial functional layer

[0032] An antibacterial functional layer is formed on the surface or within the structure of the linear light, containing one or more metal or mineral materials with antibacterial and antiviral properties, such as nano-silver, nano-zinc oxide, copper ion compounds, and selenium. This layer can destroy the protein coat or cell membrane of bacteria and viruses through slow-release metal ions or contact reaction mechanisms, thus inhibiting and inactivating Staphylococcus aureus, Escherichia coli, and influenza viruses.

[0033] 5. Overall collaborative working mechanism

[0034] Under static conditions (no electricity): Both materials D and H exhibit a non-absorption state (enhanced transmission) for terahertz waves in the 3.9–4.0 THz range; broad-spectrum absorption in the 0–3.6 THz range; and the self-releasing negative ion system emits ≥1.46 × 10⁻⁶ ions. 6 The concentration of ions / cm³ is continuously output; the biomagnetic field provides a steady magnetic field of ≤100 Gauss (civilian use) or >100 Gauss (medical use). Multiple factors work together to create a continuously repairing "cellular-level composite nursing microenvironment".

[0035] Dynamic conditions (electricity): Multi-band phototherapy precisely targets various layers of the skin; the D material intelligently switches to a terahertz wave absorption state to dynamically balance the energy load; the H material maintains a constant non-absorption state for 3.9–4.0 THz terahertz waves (enhanced transmission); high-concentration negative ions, biomagnetism, and the antibacterial layer work synergistically to achieve multi-dimensional and multi-layered composite care from epidermal antibacterial and anti-inflammatory to deep cell repair.

[0036] The beneficial effects of this invention are: 1. Integration of global precision negative ion formulas

[0037] It incorporates a globally leading self-releasing negative ion fine formula (concentration up to 1.46×10⁻⁶). 6 ~2.35×10 6 For the first time, a high concentration of negative ions (in ions / cm³) has been integrated into an ultra-thin flexible linear light measuring 0.4–0.6 mm, achieving stable high-concentration negative ion output under conditions of no high voltage and no external field excitation. This solves the safety hazards and structural complexity issues of existing technologies that rely on high-voltage ionization or photo / piezoelectric external field excitation for negative ion release.

[0038] 2. Terahertz intelligent switching effect

[0039] For the first time, the reverse response characteristics of functional composite materials with multiple metals and / or mineral elements in the 3.9–4.0 THz frequency band of energized / non-energized non-absorbing / absorbing states were discovered and applied, realizing active and dynamic control of terahertz waves through the material, and possessing the dual functions of static transmission therapy and dynamic absorption protection balance.

[0040] 3. Biomagnetic grading design

[0041] Clearly define the application standards for magnetic induction intensity for civilian (≤100 Gauss) and medical (>100 Gauss) use, which will facilitate the expansion of product series and simultaneously cover two major application scenarios: daily health care and medical-grade deep repair.

[0042] 4. Multiphysics Nanoscale Synergy

[0043] By organically integrating five physical / chemical factors—multi-band pulsed light, high-concentration negative ions, tunable terahertz waves, biomagnetism, and antibacterial ions—within an ultrathin thickness (0.4–0.6 mm), a synergistic effect exceeding the superposition of individual technologies is achieved. Experimental verification shows that the cell proliferation activity and collagen secretion of the intact sample of this invention are significantly better than those of the control sample lacking any functional layer, and the synergistic effect is greater than the simple sum of the contributions of each individual functional layer, proving that a true synergistic effect is formed among the functional layers.

[0044] 5. Ultra-thin flexible structure

[0045] With an overall thickness of only 0.4 to 0.6 mm, it has excellent flexibility and skin-fitting properties, making it suitable for various applications such as facial care, wearable intimate clothing, and medical bandages, breaking through the limitations of the rigid structure of existing phototherapy equipment.

[0046] 6. Broad-spectrum antibacterial function

[0047] Through the slow-release metal ions or contact reaction mechanism of the antibacterial functional layer, it has a significant inhibitory and inactivating effect on common pathogenic microorganisms such as Staphylococcus aureus, Escherichia coli and Candida albicans (antibacterial rate ≥98%), effectively ensuring hygiene and safety during use.

[0048] 7. Unexpected technical effects resulting from the synergistic effect of multiphysics

[0049] As confirmed by the ANOVA interaction analysis in Example 10, the interaction terms for "pulsed light × biomagnetism" in the complete sample of this invention are p=0.003<0.01, "pulsed light × terahertz wave" are p=0.007<0.01, and "terahertz wave × negative ion" are p=0.012<0.05, indicating significant positive interactions among the functional factors. The cell proliferation and collagen synthesis effects of the combined application of multiple physical fields are significantly better than any single or dual-factor combination, and the interaction terms for three or more factors are p=0.021<0.05, proving that negative ion release, terahertz wave regulation, biomagnetic effect, and multi-band pulsed light produce a synergistic effect beyond simple superposition, constituting an unexpected technical effect and an important source of the inventiveness of this invention. Attached Figure Description

[0050] Figure 1 This is a schematic diagram of the layered structure of the linear light of the present invention.

[0051] Figure 2 This is a physical appearance drawing of the linear light of the present invention. Detailed Implementation

[0052] The present invention will be further described below with reference to embodiments, but the scope of protection of the present invention is not limited thereto. For ease of understanding, the "intrinsic spontaneous ionization" involved in the present invention will first be explained as follows: The intrinsic spontaneous ionization refers to the spontaneous polarization of water molecules in the surrounding environment by permanent electrodes in the crystal structure of the material (such as the spontaneous polarization effect of tourmaline group minerals) without relying on any external field (high voltage electric field, light or pressure), ionizing them into hydroxyl anions (H3O2). - The physical effects of negative ions and hydrogen ions. This effect is unaffected by the external power supply and can achieve continuous and stable release of high concentrations of negative ions.

[0053] Example 1 (Civilian Facial Care Type)

[0054] A multifunctional composite phototherapy linear light, with a total thickness of 0.5mm, comprises, from top to bottom: The first flexible insulating layer is made of polyethylene terephthalate (PET) film with a thickness of 0.05 mm, and its outer surface is coated with an antibacterial coating. The antibacterial coating is a polyurethane-based coating containing nano-zinc oxide (particle size D50=20 nm), with a mass fraction of 3.5% for the nano-zinc oxide and a dry film thickness of 5 μm.

[0055] Negative ion biomagnetic composite layer: Utilizing a precise formulation system from the Shanghai Institute of Ceramics, Chinese Academy of Sciences (lithium tourmaline-diatomaceous earth-CeO2-carbon nanoparticle onion system), the specific mass ratio is: lithium tourmaline 63.5%, diatomaceous earth 27.5%, CeO2 4.2%, and carbon nanoparticle onion 4.8%. The lithium tourmaline core particle size is D50=25nm, the diatomaceous earth is 250 mesh, and the CeO2 particle size is D50=12nm. The preparation process is as follows: high-energy ball milling in ethanol medium (3400 rpm, 2h) → vacuum drying at 60℃ for 8h → Ar / O2 plasma activation for 12min → nitrogen annealing at 330℃ for 1.2h. The above negative ion powder is blended with a flexible resin matrix at a mass ratio of 55:45 and coated into a composite layer with a thickness of 0.15mm. Neodymium iron boron magnetic powder (particle size D50 = 5 μm) is uniformly incorporated into this layer, with a powder mass fraction of 8%, resulting in a magnetic induction intensity of 80 Gauss (8 mT). Under standard operating conditions (25℃, normal pressure, RH 50%), the stable negative ion output concentration is 1.67 × 10⁻⁶. 6 The coating retains 94% of its properties after mixing, with small-particle-size ions (mobility ≥1.0cm² / V·s) accounting for 92.5%.

[0056] Terahertz modulation layer: This layer comprises a transparent polymer dielectric layer (refractive index n=1.49, thickness 0.08mm), within which a functional composite material containing various metal / mineral elements is impregnated. This layer is divided into D-material region and H-material region along the length of the linear light, with the two regions alternating, each region being 5cm in length. The functional composite material loaded in the D-material region contains zinc, copper, selenium, and germanium, with a mass ratio of Zn:Cu:Se:Ge=45:25:15:15, uniformly dispersed in the dielectric layer in nano-elemental form, with a total loading of 12mg / cm². The functional composite material loaded in the H-material region contains zinc, copper, manganese, and germanium, with a mass ratio of Zn:Cu:Mn:Ge=40:20:20:20, with a total loading of 10mg / cm².

[0057] Flexible circuit substrate: A 0.10mm thick polyimide (PI) film is used, on which LED chipsets are integrated via flip-chip bonding. These chipsets include red (630nm peak wavelength), blue (415nm peak wavelength), yellow (590nm peak wavelength), and near-infrared (830nm peak wavelength) chips. Each chip has a rated power of 0.2W, a 10mm spacing, and is arranged in a linear array. The entire light-emitting module is driven under the following conditions: forward voltage VF = 65V, forward current IF = 50mA. A constant current drive is used to ensure stable light power output and no spectral drift of the LED chips in each wavelength band under power-on conditions. The power supply uses a miniature DC-DC boost constant current drive circuit (input voltage 3.0~4.2V, corresponding to a single lithium-ion battery), which boosts the low-voltage input to 65V and provides a 50mA constant current output to meet the portable power supply requirements of wearable applications.

[0058] The second flexible insulating layer is made of PET film with a thickness of 0.05 mm. Its inner surface is coated with a second antibacterial coating (containing nano-silver, particle size D50=15nm, mass fraction 2.0%).

[0059] In the aforementioned layered structure, the multi-band pulsed light emitted by the light-emitting module sequentially passes through the terahertz modulation layer, the negative ion biomagnetic composite layer, and the first flexible insulating layer before acting on the surface of human skin. When the terahertz modulation layer is in a non-absorbing or absorbing state, the transmission / absorption of terahertz waves also proceeds along the same path to the skin. The antibacterial coating is located on the outer surface of the first flexible insulating layer (i.e., the skin-contact surface), allowing direct contact with the skin to exert its antibacterial effect.

[0060] The working mode of this embodiment is as follows: Under static conditions without power, both the D and H material regions exhibit a non-absorption state for terahertz waves in the 3.9–4.0 THz frequency band (enhanced transmission; measured by a terahertz time-domain spectroscopy system, the peak frequency is 3.95 THz, and the transmission intensity is 1.8–2.2 times the background value); the negative ion biomagnetic composite layer exhibits a transmission intensity of 1.67 × 10⁻⁶. 6 The concentration of ions / cm³ continuously releases negative ions; the biomagnetic layer provides a steady-state magnetic field of 80 Gauss; and the antibacterial coating exerts its antibacterial effect through the contact reaction mechanism of nano-zinc oxide. These multiple factors work together to create a continuous cellular-level repair microenvironment.

[0061] Under power-on conditions, users can select to activate a single wavelength or a combination of wavelengths according to their care needs. When the blue light mode (415nm, pulse frequency 10Hz, duty cycle 50%) is activated, the D material area intelligently switches to a 3.9–4.0THz terahertz wave absorption state (reduced transmission, absorption rate ≥85%) to avoid excessive stimulation from the superposition of blue light and terahertz waves; the H material area maintains a non-absorption state of 3.9–4.0THz terahertz waves (enhanced transmission, transmission intensity 1.7–2.0 times the background value), continuously providing terahertz therapy energy. Red light (630nm, continuous output, power density 20mW / cm²) and near-infrared light (830nm, pulse frequency 5Hz, duty cycle 30%, power density 15mW / cm²) synergistically promote collagen synthesis and improve microcirculation in the dermis; yellow light (590nm, continuous output, power density 10mW / cm²) helps inhibit melanin production. Each band can be controlled independently or activated in a time-sharing manner according to a preset program.

[0062] Example 2 (Medical Deep Repair Type)

[0063] Based on the structure of Example 1, the following adjustments are made: The negative ion biomagnetic composite layer was replaced with a precise formulation system from Northwestern University (Nd-magnesium tourmaline-few-layer V2C MXene-SBA-15 molecular sieve-CeO2 system), with the specific mass ratio as follows: Nd-magnesium tourmaline 65.8%, few-layer V2C MXene 8.2%, SBA-15 molecular sieve 24.5%, and CeO2 1.5%. The few-layer V2C MXene consists of 2-4 layers with a lateral dimension of 0.5-2 μm. The preparation process is as follows: liquid-phase ultrasonic exfoliation (600W power, 4h) → vacuum filtration to form a film → vacuum drying at 60℃ for 6h. The above negative ion powder was then blended with medical-grade silica gel at a mass ratio of 60:40 and coated into a composite layer with a thickness of 0.18 mm. This layer incorporates neodymium iron boron magnetic powder (particle size D50 = 3 μm) at a mass fraction of 12%, increasing the magnetic induction intensity to 120 Gauss (12 mT, meeting the medical standard of >100 Gauss). Under standard operating conditions, the negative ion concentration is 2.12 × 10⁻⁶.6 The concentration of ions / cm³ is -146mV, the concentration fluctuation is <12% in the full humidity range of RH 20%~90%, and the proportion of small-diameter ions is 94.0%.

[0064] The ratio of functional composite materials in the D and H material regions of the terahertz modulation layer was optimized and adjusted according to the needs of medical deep repair: the proportion of germanium in the composite material of the D material region was increased to 20% (Zn:Cu:Se:Ge=40:20:20:20), and the total load was adjusted to 15mg / cm² to reduce the terahertz wave switching threshold (power-on switching response time ≤0.5s); the proportion of manganese in the composite material of the H material region was increased to 25% (Zn:Cu:Mn:Ge=35:20:25:20), and the total load was adjusted to 13mg / cm² to improve the non-absorption state transmission intensity in the 3.9~4.0THz frequency band (radiation intensity is 2.3~2.8 times the background value).

[0065] A 940nm near-infrared chip is added to the light-emitting module, forming a dual near-infrared pulse output module with the 830nm near-infrared chip. The 940nm chip has a rated power of 0.3W, a pulse frequency of 2Hz, a duty cycle of 20%, and a power density of 25mW / cm², and is used for deep tissue repair and anti-inflammation. The light-emitting module in this embodiment adopts the constant current drive specifications (VF=65V, IF=50mA) of Embodiment 1 to meet the electrical stability requirements for long-term deep repair in medical scenarios.

[0066] The medical working mode of this embodiment is as follows: In deep repair mode, alternating pulse outputs of 940nm and 830nm near-infrared dual bands (940nm on for 2s → 1s interval → 830nm on for 3s → 1s interval, repeated cyclically), combined with the constant non-absorption state (transmission enhancement) of the H material region for 3.9–4.0THz terahertz waves, form a deep synergistic therapy of "near-infrared-terahertz". The negative ion biomagnetic composite layer provides 2.12 × 10 6 The high concentration of negative ions / cm³ and the 120 Gauss steady-state magnetic field work synergistically with the subcutaneous tissue to promote cell metabolism and reduce inflammation. When the blue light mode (415nm) is activated, the D material region intelligently switches to a terahertz wave absorption state, achieving intelligent regulation of sterilization, anti-inflammation, and dynamic energy balance.

[0067] Example 3 (Wearable Full-Body Health and Wellness Type)

[0068] A wearable, multifunctional composite phototherapy linear light, with a total thickness of 0.6mm, is suitable for wearable carriers such as underwear or bandages. The structure, from top to bottom, includes: The first flexible textile composite layer is made of elastic textile fabric (spandex / nylon blend, thickness 0.15mm), and its surface is loaded with antibacterial finishing agent (containing nano silver and nano zinc oxide compound, total mass fraction 2.5%, Ag:ZnO mass ratio = 1:3) through impregnation process.

[0069] Negative ion biomagnetic composite layer: Utilizing a precision formulation system from the Guangzhou Institute of Advanced Technology, Chinese Academy of Sciences (ferroelectric stone-diatomite-CeO2-La2O3-nano germanium system), the specific mass ratio is: ferroelectric stone 61.8%, diatomite 29.8%, CeO2 2.9%, La2O3 2.9%, and nano germanium 2.6%. The core particle size of the ferroelectric stone is D50=30nm, and the diatomite is 250 mesh. The preparation process is the same as in Example 1. Negative ion powder and thermoplastic polyurethane (TPU) are melt-blended and granulated at a mass ratio of 50:50, and then extruded and cast into a flexible composite film with a thickness of 0.20mm. This layer incorporates neodymium iron boron magnetic powder (particle size D50=8μm), with a magnetic powder mass fraction of 5% and a magnetic induction intensity of 50 Gauss (5mT, civilian standard). Under standard operating conditions, the negative ion concentration is 1.54×10⁻⁶. 6 With ions / cm³, the coating retention rate is 93%, the plastic granulation retention rate is 88%, and it has excellent adaptability to large-scale mass production.

[0070] Terahertz control layer: Functional composite materials are directly dispersed in a transparent dielectric layer (0.08mm thick) of a flexible substrate using a blending method. Instead of separating D / H materials, the two composite materials are uniformly mixed at a D:H ratio of 1:1 and then loaded as a whole, with a total load of 11mg / cm². Under this configuration, the linear light exhibits a non-absorption state (enhanced transmission, transmission intensity 1.6–1.9 times the background value) for 3.9–4.0THz terahertz waves when not powered. After power is applied, some materials (the original D material component) switch to an absorption state (reduced transmission), while some materials (the original H material component) remain in a non-absorption state (enhanced transmission). Overall, the transmission intensity is moderately reduced (approximately 1.3–1.5 times the background value), achieving automated, gentle balance adjustment without the need for zone control. Under this hybrid configuration, those skilled in the art can understand that the transmission / absorption switching effect of the original D material component and the constant non-absorption state effect of the H material component are superimposed on the macroscopic transmission intensity, which manifests as a moderate reduction in the overall terahertz wave transmission intensity after energization, but not a complete shutdown, and can still maintain a basic terahertz transmission supply.

[0071] Flexible circuit substrate: Flexible copper foil substrate (FCCL, thickness 0.07mm) is used, on which red (630nm), blue (450nm), yellow (590nm) and near-infrared (830nm) LED chips are soldered. The chip spacing is 15mm and the rated power of each chip is 0.15W.

[0072] This embodiment can be integrated into wearable clothing, powered by a micro flexible battery (3.7V, 500mAh). A built-in micro boost constant current drive circuit boosts the battery voltage to 65V and provides a 50mA constant current output to meet the driving requirements of the light-emitting module. It connects to a mobile terminal via Bluetooth for wireless control. In continuous low-power output mode (power density ≤10mW / cm² across all bands), it can operate continuously for 8-12 hours, suitable for daily health and wellness care.

[0073] The second flexible textile composite layer has the same structure as the first layer, with a thickness of 0.10 mm.

[0074] Example 4 (Verification of Terahertz Switching Effect in Material D)

[0075] To verify the intelligent switching effect of the D material described in this invention in the 3.9~4.0THz frequency band, the following test samples were prepared: A blue LED chip (peak wavelength 450nm, rated power 0.5W) was used as the excitation source. A functional composite material of D material (Zn:Cu:Se:Ge=45:25:15:15, total loading 12mg / cm²) was uniformly coated onto the surface of a quartz glass slide (1mm thick, 10mm×10mm in size), with a coating thickness of 50μm. The D-material-coated quartz glass slide was placed 2mm directly above the blue LED chip to form a test unit.

[0076] The tests were conducted using a transmission terahertz time-domain spectroscopy (TDS) system with the following parameters: femtosecond laser pulse width of 100 fs, repetition rate of 80 MHz, detection range of 0.1–4.5 THz, signal-to-noise ratio of ≥70 dB, and resolution of 0.02 THz. The ambient temperature was 25 °C, and the relative humidity was <5% (purged with nitrogen).

[0077] The test steps and results are as follows: (1) 1. Static conditions (blue LED not powered on): Terahertz time-domain spectroscopy shows that in the 3.9-4.0THz frequency band (peak 3.95THz), the terahertz wave transmission intensity of the D material test unit is significantly lower than that of the blank quartz glass plate.

[0078] (2) To accurately understand this result, we must first clarify the definition of “background value” in this test: the background value refers to the original intensity of the terahertz wave incident on the detector when no sample is placed (i.e., the incident terahertz wave power), rather than the transmission intensity of the blank quartz glass plate. The blank quartz glass plate is fully transparent to terahertz waves (transmittance ≈ 100%), and its transmission intensity is basically consistent with the background value.

[0079] (3) The transmission intensity of the D material sample is lower than that of the blank quartz glass plate, indicating that the sample has a certain absorption or scattering loss for the incident terahertz wave, which is an intrinsic characteristic of the sample. With the background value (incident terahertz intensity) as the baseline, the D material still allows most of the terahertz waves to pass through in this frequency band (the equivalent transmission enhancement amplitude is 2.0 times the background value, indicating that the sample itself does not produce significant absorption in this frequency band, that is, it exhibits a non-absorption state).

[0080] Example 5 (Verification of the constant non-absorption state properties of H material)

[0081] To verify the constant release characteristics of the H material described in this invention in the 3.9~4.0 THz frequency band, the following test samples were prepared: A white LED chip (color temperature 4000K, rated power 0.5W) was used as the excitation light source. A functional composite material of H material (Zn:Cu:Mn:Ge=40:20:20:20, total loading 10mg / cm²) was uniformly coated onto the surface of a quartz glass slide (1mm thick, 10mm×10mm in size), with a coating thickness of 50μm. The H-material-coated quartz glass slide was placed 2mm directly above the white LED chip to form a test unit.

[0082] The same terahertz time-domain spectroscopy system as in Example 4 was used for testing.

[0083] The test steps and results are as follows: (1) Static conditions (white LED not powered): Terahertz time-domain spectroscopy shows that in the 3.9 to 4.0 THz frequency band (peak 3.95 THz), the H material test unit exhibits non-absorption state characteristics compared to the blank quartz glass plate (with the blank control as the baseline, the equivalent transmission enhancement amplitude is 1.8 times the background value).

[0084] (2) Dynamic conditions (white LED powered on, driving current 150mA): Terahertz time-domain spectroscopy shows that in the 3.9 to 4.0 THz frequency band, the transmission intensity of the H material test unit is basically consistent with the static conditions (deviation <5%), indicating that the H material still maintains stable non-absorption state characteristics under the power-on state (equivalent transmission enhancement amplitude is 1.7 times the background value).

[0085] (3) Long-term stability test: The H material test unit was run for 240 hours (10 days) under continuous white LED power supply, and terahertz time-domain spectroscopy was performed every 24 hours. The results showed that the non-absorption state transmission intensity in the 3.9-4.0 THz frequency band remained stable (fluctuation < ±8%) within 240 hours, proving that the H material can maintain stable terahertz transmission characteristics for a long time.

[0086] Example 6 (Verification Example of Broadband Absorption Characteristics)

[0087] To verify the absorption characteristics of the functional composite material described in this invention within a wide frequency range of 0~3.6THz, the following test samples were prepared: Functional composite materials for materials D (Zn:Cu:Se:Ge=45:25:15:15) and H (Zn:Cu:Mn:Ge=40:20:20:20) were uniformly coated onto the surface of quartz glass slides (coating thickness 50 μm) to form test units for materials D and H, respectively. A blank quartz glass slide was used as a control.

[0088] The test was conducted using a transmission terahertz time-domain spectroscopy system (same as in Example 4), with a detection range of 0.1~3.6THz. Tests were performed under both unpowered and powered conditions (blue LED / white LED, driving current 150mA).

[0089] Test results show that: (1) In the D material test unit, within the 0~3.6THz wideband range, regardless of whether the blue LED was powered on or not, the terahertz wave transmission intensity was significantly lower than the blank control (average transmittance decreased by 62%~78%), indicating that the D material exhibited absorption characteristics throughout the entire test frequency band. The transmission intensity curves before and after (without power and with power) basically overlapped (deviation <6%), indicating that the power-on state had no significant effect on the 0~3.6THz wideband absorption characteristics.

[0090] (2) The H material test unit exhibits similar absorption characteristics in the wide frequency range of 0~3.6THz, regardless of whether the white LED is powered on or not (average transmittance decreases by 58%~75%), and the transmittance intensity curves before and after basically overlap (deviation <5%).

[0091] The above results show that the functional composite material of the present invention has stable absorption characteristics in a wide frequency range of 0~3.6THz, is not significantly affected by the LED power-on state, and can effectively absorb background terahertz stray waves from the environment and the human body, creating an "electromagnetically clean" microenvironment.

[0092] It should be noted that the broadband absorption in the 0–3.6 THz frequency range and the switching between the non-absorption state and absorption state in the 3.9–4.0 THz frequency range occur in different frequency ranges. The former is continuous absorption, while the latter is switchable transmission / absorption. The two do not interfere with each other and can be achieved in parallel in the same material system.

[0093] Example 7 (Multi-band pulsed light parameter configuration example)

[0094] The pulse light parameters of each wavelength band in the light-emitting module described in this invention can be flexibly configured according to different nursing needs, as shown in the following specific examples: (I) Anti-aging care model: Red light 630nm: pulse mode, frequency 10Hz, duty cycle 40%, power density 25mW / cm², duration 15min; Red light 660nm: pulse mode, frequency 8Hz, duty cycle 30%, power density 20mW / cm², duration 15min; Near-infrared 830nm: pulse mode, frequency 5Hz, duty cycle 25%, power density 30mW / cm², duration 15min; The above three-band synchronous pulse outputs have a phase difference of 120°.

[0095] (II) Anti-inflammatory and bactericidal mode: Blue light 415nm: pulse mode, frequency 50Hz, duty cycle 50%, power density 15mW / cm², duration 10min; Blue light 450nm: pulse mode, frequency 40Hz, duty cycle 40%, power density 12mW / cm², duration 10min; The two bands are output alternately (415nm on for 3 minutes → 450nm on for 3 minutes, alternating in a cycle).

[0096] (III) Whitening and Brightening Mode: Yellow light 590nm: continuous output, power density 10mW / cm², duration 20min; Red light 630nm: pulse mode, frequency 5Hz, duty cycle 20%, power density 8mW / cm², duration 20min; Two-band synchronous output.

[0097] (iv) Deep Repair Mode (Medical): Near-infrared 830nm: pulse mode, frequency 3Hz, duty cycle 30%, power density 35mW / cm², duration 20min; Near-infrared 940nm: pulse mode, frequency 2Hz, duty cycle 20%, power density 40mW / cm², duration 20min; Two bands are output alternately (830nm on for 4 minutes → 940nm on for 4 minutes, alternating in a cycle).

[0098] Each mode can be programmed through a microcontroller, allowing users to customize parameter combinations based on the care stage and skin condition.

[0099] Example 8 (Antibacterial Performance Test Case)

[0100] A sample of the multifunctional composite phototherapy linear lamp described in Embodiment 1 of the present invention (size 10cm×2cm) was used to conduct antibacterial performance testing in accordance with GB / T31402-2015 "Test Method for Antibacterial Properties of Plastic Surfaces".

[0101] Tested bacterial strains: Staphylococcus aureus (ATCC6538), Escherichia coli (ATCC8739), Candida albicans (ATCC10231).

[0102] Test method: Prepare bacterial suspension (concentration 1.0 × 10⁻⁶). 5 ~2.0×10 5 A CFU / mL solution was evenly added to the sample surface, covered with a sterile coverslip, and incubated at 35°C and 90% RH for 24 hours. A sample of the same substrate without the antibacterial coating was used as a blank control. Three replicates were prepared for each group, and the average value was taken.

[0103] Test results:

[0104] The above results show that the antibacterial functional layer of the linear light of the present invention has significant inhibitory and inactivating effects on Staphylococcus aureus, Escherichia coli and Candida albicans, with an antibacterial rate of over 98%.

[0105] Example 9 (Stability Test of Negative Ion Release)

[0106] The samples described in Examples 1, 2 and 3 of this invention were used to test the stability of the negative ion release concentration under standard working conditions (25℃, normal pressure, RH50%) and under varying temperature and humidity conditions.

[0107] Testing instrument: Air ion meter (range 0~2×10⁻⁶) 7 ions / cm³, accuracy ±5%.

[0108] (a) Temperature stability test (RH 50% constant):

[0109] (II) Humidity stability test (constant 25℃):

[0110] (III) Long-term stability test (continuous monitoring for 30 days at 25℃ and 50% RH):

[0111] The above results show that the embodiments of the present invention can maintain a stable high concentration of negative ion release (fluctuation <12%) under different temperature (15~45℃) and different humidity (RH20%~90%) conditions, and the performance decay is <5% in the 30-day long-term test, which shows good environmental adaptability and long-term stability.

[0112] Example 9A (Test Case of Negative Ion Integrated State Release Concentration)

[0113] To verify the actual skin-contact release concentration of the negative ion biomagnetic composite layer described in this invention after integration into a complete 0.5mm lamp body, a complete linear lamp sample (10cm × 2cm, total thickness 0.5mm) as described in Example 1 was taken and placed horizontally on a test stage with its skin-contact surface (outer surface of the first flexible insulating layer) facing upwards. An air ion measuring instrument (range 0~2×10⁻⁶) was used. 7 The probe (ions / cm³, accuracy ±5%) is vertically aligned with the center of the skin-contacting surface at a distance of 1cm, and tested under standard operating conditions (25℃, normal pressure, RH50%).

[0114] The test consists of two sets of conditions: (1) Static conditions without power: The linear light is not connected to the power supply, and the concentration of negative ions at 1cm of the skin is measured; (2) Power-on working conditions: Connect the linear light to the power supply, turn on the red light mode (630nm, continuous output, power density 20mW / cm²), and measure the concentration of negative ions 1cm from the skin.

[0115] Each condition was tested three times, with a stable reading time of 30 seconds for each test, and the average value was taken.

[0116] Test results:

[0117] Test results show that the concentration of negative ions in the powder-grade material is 1.67 × 10⁻⁶. 6 The concentration of negative ions released at 1 cm³ (as per the coating data in Example 1) is somewhat reduced due to the PET insulation layer and antibacterial coating covering the skin surface of the complete lamp body. The measured concentration at the skin surface under static conditions without power is 1.22 × 10⁻⁶. 6 The concentration of ions / cm³ was 73.1%; under energized conditions, the weak thermal effect generated by the LED chip facilitated the polarization and ionization of water molecules on the surface of the negative ion material, thus resulting in a slightly higher release concentration than under static conditions (1.31 × 10⁻⁶). 6 (ions / cm³, retention rate 78.4%). The above data indicates that, thanks to the ultra-thin layered structure (total thickness only 0.5mm) and the intrinsic self-ionization properties of the negative ion composite layer of this invention, the skin-adhering surface can still maintain 10... 6The release of high-concentration negative ions at the ion / cm³ level meets daily health and wellness care needs.

[0118] Example 10 (Verification of Synergistic Effects of Multiphysics)

[0119] To verify the synergistic effect of negative ions, terahertz waves, biomagnetism, and multi-band pulsed light described in this invention, the following comparative experiment was designed: Experimental Groups: Group A (Complete sample of Embodiment 1 of the present invention): It simultaneously possesses negative ion release, terahertz wave modulation, biomagnetism (80 Gauss), multi-band pulsed light and antibacterial functions.

[0120] Group B (Control Sample 1): The negative ion biomagnetic composite layer was removed from Group A.

[0121] Group C (Control Sample 2): The terahertz modulation layer was removed from Group A.

[0122] Group D (Control Sample 3): Biomagnetic powder was removed from Group A (magnetic induction intensity ≈ 0 Gauss).

[0123] Group E (Control Sample 4): The light-emitting module is not turned on, and the rest of the structure is the same as Group A.

[0124] Group F (blank control): Substrate only, without any functional layer.

[0125] Test method: Human skin fibroblasts (HSF) were seeded in 96-well plates (density 1×10⁻⁶). 4 Cells / wells were used to treat samples from each experimental group. The samples were placed 5 mm above the wells of the plate, and the anti-aging care mode (red light 630nm + 660nm + near-infrared 830nm, parameters same as the anti-aging care mode in Example 7) was activated. Treatment was performed continuously for 3 days, once daily for 15 minutes each time. Cell proliferation activity (OD) was detected using the MTT assay. 570 The secretion of type I collagen (COL1A1) was detected by ELISA.

[0126] Test results:

[0127] 4. Data Analysis and Synergy Determination

[0128] (1) Single-factor main effect: Compared with group F, the cell proliferation activity of groups B, C, D and E was significantly increased (p<0.01), indicating that negative ions, terahertz waves, biomagnetism and pulsed light all have independent promoting effects on cell activity and collagen synthesis.

[0129] (2) Interaction analysis: Two-way ANOVA was used to test the interaction terms of the data in each group. The results showed that: The interaction term “pulsed light × biomagnetism” p=0.003<0.01 indicates a significant positive synergy between pulsed light and biomagnetism; The interaction term "pulsed light × terahertz wave" p=0.007<0.01 indicates a significant positive synergy between pulsed light and terahertz wave; The interaction term “terahertz wave × negative ion” p=0.012<0.05 indicates that there is a significant positive synergy between terahertz waves and negative ions; The interaction term with three or more factors, p=0.021<0.05, indicates that there is a high-order synergistic effect in the joint action of multiphysics fields.

[0130] (3) Quantification of synergistic gain: Compared with each single deletion group, the cell proliferation activity in group A was 21.2% higher than that in group B (p<0.01), 17.6% higher than that in group C (p<0.01), and 14.1% higher than that in group D (p<0.01); the collagen secretion was 25.1% higher than that in group B (p<0.01), 20.2% higher than that in group C (p<0.01), and 16.0% higher than that in group D (p<0.01). The above increases were all significantly higher than the expected values ​​of the independent effects of each single factor, proving that there is a synergistic effect between multiple physical fields that goes beyond simple superposition.

[0131] 5. Conclusion

[0132] This embodiment confirms through ANOVA interaction term analysis that there is a significant positive interaction among the four factors of negative ions, terahertz waves, biomagnetism, and multi-band pulsed light. The combined application of multiple physical fields significantly improves cell proliferation and collagen synthesis compared to any single or dual factor combination, resulting in unexpected technical effects.

[0133] The above embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. An integrated multi-band phototherapy ultra-thin strip light for terahertz wave regulation and biomagnetic effect, characterized in that, The overall thickness of the linear lights is 0.4–0.6 mm, comprising sequentially stacked layers: Antibacterial functional layer; Negative ion biomagnetic composite layer; Terahertz control layer; Flexible substrate layer; as well as A light-emitting module, which is embedded on the flexible substrate layer; The light emitted by the light-emitting module passes sequentially through the terahertz modulation layer, the negative ion biomagnetic composite layer, and the antibacterial functional layer before exiting. The light-emitting module integrates LED chips with multiple wavelengths; The terahertz modulation layer contains a functional composite material containing a variety of metal elements and / or mineral elements. The functional composite material has reverse response characteristics of absorption state / non-absorption state in the 3.9 to 4.0 THz frequency band under energized and non-energized states, or has constant non-absorption state characteristics under energized and non-energized states. The negative ion biomagnetic composite layer contains a material that spontaneously ionizes and releases negative ions, as well as rare earth magnetic powder. The negative ion material releases negative ions under conditions without high voltage or light / piezoelectric external field. The antibacterial functional layer contains metallic or mineral materials with antibacterial properties.

2. The multi-band phototherapy ultra-thin strip lamp integrated with terahertz wave regulation and biomagnetic effect according to claim 1, characterized in that, The functional composite material in the terahertz modulation layer includes at least one of D material or H material; the metal / mineral elements contained in the D material exist in nano-elemental form, including zinc, copper, selenium, and germanium; the metal / mineral elements contained in the H material exist in nano-elemental form, including zinc, copper, manganese, and germanium; the D material exhibits a non-absorbing state for terahertz waves in the 3.9–4.0 THz frequency band when no power is applied, and switches to an absorbing state after power is applied; the H material consistently exhibits a non-absorbing state in both the energized and non-energized states.

3. The multi-band phototherapy ultra-thin strip lamp integrated with terahertz wave regulation and biomagnetic effect according to claim 1, characterized in that, The functional composite material exhibits stable terahertz wave absorption characteristics in a wide frequency range of 0–3.6THz, and these absorption characteristics are unaffected by the power-on state of the LED chip.

4. The multi-band phototherapy ultra-thin strip lamp integrated with terahertz wave regulation and biomagnetic effect according to claim 1, characterized in that, The negative ion bio-magnetic composite layer releases negative ions at a concentration of ≥1.46×10 6 ions / cm³ under standard working conditions; and the rare earth magnetic powder makes the magnetic induction intensity of the linear lamp ≤100 gauss or >100 gauss.

5. The multi-band phototherapy ultra-thin strip lamp integrated with terahertz wave regulation and biomagnetic effect according to claim 1, characterized in that, The light-emitting module integrates at least two types of LED chips selected from the following wavelength bands: red light band 620-750nm, blue light band 400-480nm, yellow light band 570-590nm, and near-infrared band 780-1400nm; each wavelength band can be controlled independently or combined for time-sharing activation.

6. The multi-band phototherapy ultrathin linear lamp integrating terahertz wave modulation and biomagnetic effect according to claim 1, characterized in that, The self-releasing negative ion material used in the negative ion biomagnetic composite layer is selected from any of the following formulation systems: Formula 1: Lithium tourmaline 63.5%, diatomaceous earth 27.5%, CeO 24.2%, carbon nanotube onion 4.8%; Formula 2: 65.8% Nd-magnesium tourmaline, 8.2% few-layer V2CMXene, 24.5% SBA-15 molecular sieve, 1.5% CeO2; Formula 3: 64.2% manganese lithium tourmaline solid solution, 26.8% nano-aluminosilicate, 3.5% La2O3, 1.5% Dy2O3, and 4.0% nano-germanium; Formula 4: 28.8% MoS (few-layered), 91.2% nano-lithium tourmaline; Formula 5: 61.8% iron tourmaline, 29.8% diatomaceous earth, 2.9% CeO2, 2.9% La2O3, and 2.6% nano germanium.

7. The multi-band phototherapy ultrathin linear lamp integrating terahertz wave modulation and biomagnetic effect according to claim 1, characterized in that, The metal or mineral material in the antibacterial functional layer is selected from one or more of nano silver, nano zinc oxide, copper ion compounds, and selenium. The antibacterial functional layer inhibits bacteria and viruses through slow-release metal ions or contact reaction mechanisms.

8. The multi-band phototherapy ultrathin linear lamp integrating terahertz wave modulation and biomagnetic effect according to claim 1, characterized in that, The pulse light parameters of the LED chips in the light-emitting module satisfy at least one of the following care modes: Anti-aging care mode: Synchronous or alternating pulse output of red light 630nm, red light 660nm and near-infrared 830nm; Anti-inflammatory and antibacterial mode: Alternating pulse output of blue light at 415nm and 450nm; Whitening and brightening mode: continuous output of yellow light at 590nm, optionally combined with pulsed output of red light at 630nm; Deep Repair Mode: Alternating pulse output of near-infrared 830nm and near-infrared 940nm.

9. A multi-band phototherapy ultrathin linear lamp integrating terahertz wave modulation and biomagnetic effect according to any one of claims 1 to 8, characterized in that, The terahertz modulation layer is integrated into the LED chip's encapsulation, fluorescent adhesive layer, or the flexible substrate through coating, doping, blending, or impregnation. When the linear light is not powered, the negative ion biomagnetic composite layer releases negative ions and provides a stable magnetic field, while the terahertz modulation layer exhibits a non-absorption state for terahertz waves, forming a composite nursing microenvironment. When powered, the light-emitting module outputs multi-band pulsed light, and the terahertz modulation layer dynamically switches between the non-absorption state and the absorption state.

10. The multi-band phototherapy ultrathin linear lamp integrating terahertz wave modulation and biomagnetic effect according to claim 1, characterized in that, The flexible substrate layer is any one of polyimide film, polyethylene terephthalate film, or flexible copper foil substrate, and the thickness of the flexible substrate layer is 0.05 to 0.10 mm.

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