LED Skin Treatment Device with Dynamic Power Adjustment
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Solution Overview
Problem
Existing skin and scalp treatment devices using LEDs face inefficiencies due to heat generation from light sources, leading to uneven light distribution and potential burns, and existing cold solutions struggle to adapt to the skin's curvature, resulting in poor treatment outcomes.
Innovation Solution
A device with a platelike shape featuring an electric power supply circuit and control unit that adjusts LED power based on a constant distance from the skin, using a laminar accommodation element and sensor to ensure uniform light emission, accommodating skin curvatures and types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If traditional light sources (xenon lamps, halogen lamps) are used for skin treatment, then high power and intensity can be achieved, but large amounts of heat are generated causing burns to the patient
Solution Approach 1:
The patent replaces traditional thermal light sources (incandescent lamps, halogen lamps, xenon lamps) with LED light sources that generate light through electroluminescence rather than thermal radiation. This substitution eliminates the heat generation problem while maintaining high light output power, directly resolving the contradiction between achieving high power and avoiding heat-induced burns.
2Ease of operation
If fixed power LED beams are used for treatment, then device simplicity is maintained, but uneven light distribution occurs on curved skin surfaces resulting in overexposure or underexposure
Solution Approach 1:
The patent implements dynamic power adjustment capability in the LED device, allowing the light beam power to be varied based on the distance between the LED and skin surface. This dynamic adjustment ensures uniform treatment dosage across curved skin surfaces while maintaining operational simplicity through automated control, resolving the contradiction between device simplicity and treatment uniformity.
3Productivity
If LEDs are placed close to the skin for effective treatment, then treatment efficiency improves, but heat generation increases causing potential burns
Solution Approach 1:
The patent replaces thermal light sources with LED technology that produces light through electroluminescence, a cold light generation mechanism. This allows the light source to be positioned close to the skin for effective treatment while eliminating heat generation, thus improving treatment efficiency without causing burns.
4Device complexity
If average distance power settings are used for LED treatment, then device simplicity is maintained, but portions of skin receive non-ideal power resulting in poor treatment outcomes
Solution Approach 1:
The patent incorporates dynamic power adjustment mechanisms that automatically adapt the LED light beam power based on the actual distance between the device and skin surface. This ensures optimal treatment effectiveness across all skin areas while maintaining operational simplicity through automated control systems, resolving the contradiction between device complexity and treatment effectiveness.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device provides a safe, efficient, and uniform light treatment by maintaining a consistent distance from the skin and adjusting power according to skin type and condition, preventing over or underexposure, thus enhancing treatment efficacy and user simplicity.
Implementation Method 1
a device for emitting light by means of LEDs
Implementation Method 2
emitting light by means of LEDs of the continuous and pulsed type
Data Source
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AI summary
A device for emitting light by means of LEDs of the continuous and pulsed type for aesthetic and therapeutic treatments, of the type comprising an electric power supply circuit which is connected to a respective external control and management unit and at least one LED controlled by the circuit and oriented toward a surface that is intended to face the skin of the patient in conditions for use, the device having a platelike shape; the at least one LED being arranged on a laminar accommodation element that is arranged at a constant distance from the surface intended to face the skin of the patient in conditions for use; the electric circuit comprising at least one apparatus for adjusting the electric power supply values of the at least one LED controlled by the control and management unit in order to set the power of the light beam emitted by the at least one LED.