Light Guide Homogeneous Diffusion for Skin Treatment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing skin care devices face challenges in providing homogeneous and intense light treatment combined with mechanical massage, often resulting in reduced light efficiency due to suboptimal light source placement and increased costs from the need for multiple LEDs to cover the skin area.
Innovation Solution
A skin care device featuring a light guide with a single-piece design that includes a projection surface and an opposite face with reflective surfaces, optimizing light distribution and concentration, and incorporating light-emitting diodes (LEDs) for efficient and compact illumination, along with mechanical massage means for enhanced skin treatment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple LEDs are arranged in a circle facing the treatment disc to cover the entire projection surface, then the light coverage area is improved, but the device cost increases and the energy loss through the translucent disc increases
Solution Approach 1:
The patent introduces a translucent treatment disc as an intermediary component between the LED light source and the skin. The disc is specifically designed with light-diffusing properties to evenly distribute light from a single LED source across the entire treatment area, eliminating the need for multiple LEDs while maintaining comprehensive coverage. This intermediary structure resolves the contradiction by providing large-area illumination through a single light source rather than requiring multiple LEDs arranged in a circle.
2Device complexity
If the light source is placed far from the tangent plane outside the rollers, then the mechanical treatment structure is simplified, but the light intensity at the treatment area is reduced
Solution Approach 1:
The translucent treatment disc serves as a mediator that allows the light source to be positioned optimally for both mechanical and optical functions. The disc transmits and diffuses light from the LED while maintaining the mechanical integrity of the roller treatment structure, thereby preserving light intensity at the treatment area without compromising mechanical design simplicity.
Solution Approach 2:
The patent changes the optical parameters of the treatment disc by using translucent material with specific light-diffusing properties. This material parameter change enables the disc to transmit and distribute light effectively, ensuring sufficient illumination intensity reaches the skin even when the light source is positioned to accommodate the mechanical treatment structure.
3Stability of the object's composition
If a translucent disc is used to transmit light to the skin, then the homogeneous light distribution is improved, but the energy loss of light passing through the disc increases
Solution Approach 1:
The patent optimizes the optical parameters of the translucent disc by selecting materials and designing thickness profiles that balance light diffusion with energy transmission. The disc is engineered to achieve homogeneous light distribution across the treatment area while minimizing absorption and scattering losses, thereby reducing overall energy loss compared to alternative designs.
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 achieves homogeneous light diffusion and intense illumination over a defined area, improving treatment efficacy while maintaining a compact and cost-effective design, allowing for both mechanical and phototherapy treatments simultaneously.
Implementation Method 1
said distribution means comprise at least one at least partially reflective surface (S1, S2) intended to reflect part of the light towards said projection surface
Data Source
Figure 1
Figure 2~3
Figure 4~6
AI summary
The invention relates to an apparatus (1) for treating skin, including: a body (2) comprising a casing (21, 22) forming a grippable region; electrical means for supplying power, arranged in said body; at least one treatment head (3); at least one light source (4); and at least one light guide (5) having a projection area (51) that is intended to receive the light emitted by said at least one light source (4) and to project at least one light beam intended for a region of skin. According to the invention, said at least one light guide (5) comprises a face opposite said projection area (51), said opposite face comprising distributing means intended to distribute the light over said projection area (51).