The core principle of the pulse biological application of COB LED lies in the use of pulsed light output to accurately regulate the photo biological regulation effect. Its advantages stem from the high power and high uniformity brought by COB packaging technology.
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The “energy factory” in human cells – mitochondria, whose cytochrome c oxidase on the membrane is a key “photoreceptor”. When it absorbs photons of specific wavelengths (especially red light 600-700nm and near-infrared light 780-1100nm), a series of biochemical reactions are activated, promoting the synthesis of energy molecule ATP. This can accelerate cell repair, promote collagen production, and alleviate inflammation.
Unlike continuous illumination, pulse mode allows COB light source to instantly light up at extremely high power and turn off at very short intervals. This method can generate much higher peak power than continuous mode, penetrate tissues deeper, and stimulate stronger biological responses. At the same time, the shutdown period allows the organization time to dissipate heat, effectively controlling temperature rise and avoiding thermal damage, achieving the unity of efficacy and safety.
The technological foundation for achieving these advantages is COB LED, which tightly integrates multiple LED chips on a single substrate. Compared to traditional LED, it brings several key improvements:
High power and deep penetration: COB light source can achieve power density outputs of up to 100-500mW/cm ² or even higher. In pulse mode, the peak power is higher, which can effectively penetrate the subcutaneous tissue 5-10mm or even deeper, reaching the dermis layer and below, providing the possibility for deep treatment.
Ultra high uniformity: Through optimized chip layout, COB modules can achieve a “zero spot” effect with a power density deviation of ≤ 5%. This means that the light energy evenly covers the treatment area, avoiding the possibility of excessive or insufficient local energy that may occur with traditional LEDs.
Precise wavelength control: By selecting specific semiconductor materials, the wavelength deviation can be controlled within ± 3nm, accurately matching the absorption peak of targets such as cytochrome c oxidase, ensuring maximum therapeutic effect.
Excellent heat dissipation capability: During high-power operation, the COB module uses ceramic substrates or even a water cooling system, which can effectively control the chip junction temperature below 85 ℃. Efficient heat dissipation is a prerequisite for stable and safe operation of equipment in high-power pulse mode, and also extends the lifespan of the equipment.
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The pulse mode of COB light source has its unique value in the biomedical field, custom COB LED for various pulse application.
We are committed to COB LED design and production for special project requirements. Over the past decade, we have provided satisfactory technical services for multiple personalized special projects. We have been provide technical support for technological innovation in multiple fields, from pulse applications in medical/biological fields to medical/beauty applications in special wavebands. If your project requires optical technology with special requirements, please contact us now.