1. Supporting Technology: Advanced Internal Heat Dissipation Material (Ceramic Base and Metal Core Plate) [3]
Achieved Advantage: Overcoming "Thermal Degradation" with High Energy Density Comparable to Professional Lasers (25 J/cm²).
Traditional LED chips experience a sharp decline in light output when heated (known as thermal degradation), limiting their use to low-level light therapies. The S-LD employs a specialized heat-conductive substrate structure that allows it to withstand high electrical loads without losing luminous efficiency. This allows the device to successfully deliver an energy density of up to 25 J/cm², reaching a high thermal threshold sufficient to destroy hair follicles.
2. Supporting Technology: Built-in Reflector [3]
Achieved Advantage: Solving the Problem of Light Diffusion, Ensuring Deep Energy Penetration.
Ordinary LED light is diffuse and non-directional, which results in significant loss of energy on the skin surface. The S-LD device incorporates a unique reflector within the lens, which collects and focuses the scattered LED light into a narrow beam of approximately 15°. This ensures that the high-intensity energy is not "scattered" on the skin's surface but instead penetrates deeply into the dermis, precisely targeting the hair follicle roots.
3. Supporting Technology: Specific Near-Infrared Wavelengths (780–850 nm) and Extended Pulse Duration (Up to 750 ms)
Achieved Advantage: Breaking the "Melanin Trap" for Safe Use on Dark Skin (Fitzpatrick IV-VI).
The light energy in this wavelength range effectively bypasses the skin's superficial melanin, directly targeting the hair follicle. [1]
Short pulses from traditional lasers can lead to immediate melanin heat absorption and burning. The S-LD uses pulse durations far exceeding traditional lasers (up to 750 ms), allowing for gradual heating and complete follicle destruction. The longer pulse duration also gives the surrounding skin ample time to dissipate heat, thus preventing the risk of burns. [2]
4. Supporting Technology: "360° Surround Cooling" / Extreme Cold Technology (Temperatures as Low as -15°C)
Achieved Advantage: Significant Reduction in Pain and Heat Buffer Protection.
The S-LD device features an ultra-efficient cooling probe that maintains a skin surface temperature between -5°C to -15°C as strong light passes through the skin. This not only prevents localized tissue overheating but also reduces the sharp pain commonly experienced with traditional lasers, significantly improving the user’s comfort. [1][2]
5. Supporting Technology: Plug-In Design + Continuous Scanning Mode (Scanning Mode)
Achieved Advantage: Unlimited Endurance and Significantly Reduced Treatment Time.
With its plug-in design, the S-LD eliminates the limitations of traditional home-use laser devices (e.g., Tria 4X) with small batteries prone to depletion. It ensures continuous, uninterrupted energy output.
At lower power settings (1-3 levels), the device supports a continuous sliding scan mode. Unlike the traditional "press-wait-press" method, the S-LD flashes continuously at a speed of 5 cm/sec, reducing treatment time for large areas (such as the front of the thighs) from 1-2 hours to approximately 20 minutes, significantly improving operational efficiency.
