Floating Light Source Structure for Low-Cost Water Treatment
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Solution Overview
Problem
There is a need for a cost-effective solution to efficiently treat water in regions with water pollution and limited access to large-scale purification facilities.
Innovation Solution
A light emitting device with a buoyant main body and a light source unit emitting light towards the water, utilizing semiconductor layers doped with different conductivity types and an active layer, is used to treat water, which can be mounted on a water surface and move with the surface, ensuring close proximity for efficient treatment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a light emitting device is mounted on the water surface to treat water, then the treatment efficiency is improved due to close proximity, but the device complexity increases due to the need for buoyancy control and surface movement adaptation
Solution Approach 1:
The patent employs a buoyant main body filled with air or a material having lower specific gravity than water to counteract the weight of the light source unit and electronic components. This buoyancy mechanism enables the device to float on the water surface, maintaining close proximity to the water for efficient treatment while simplifying the overall structure compared to submerged designs.
Solution Approach 2:
The patent designs the main body to be movable both vertically and laterally in response to water surface movement. This dynamic adaptation ensures the light source unit maintains optimal position and orientation relative to the water surface, improving treatment efficiency while using simple passive motion response rather than complex active control systems.
2Loss of time
If the light source unit is positioned close to the water surface to minimize treatment time, then the treatment time is reduced, but the reliability decreases due to potential instability on the water surface
Solution Approach 1:
The buoyant main body provides stable flotation on the water surface, supporting the light source unit at the optimal position for minimal treatment time. The buoyancy force counteracts gravitational force, maintaining device stability without requiring complex stabilization mechanisms.
Solution Approach 2:
The main body is designed to dynamically follow water surface movements while maintaining vertical orientation. This passive dynamic response ensures the light source unit remains stable and properly positioned relative to the water surface, combining treatment time efficiency with reliability through simple mechanical adaptation rather than active control.
3Productivity
If the main body is designed to move with the water surface to maintain close proximity, then the treatment efficiency is improved, but the ease of operation decreases due to the need for surface movement adaptation
Solution Approach 1:
The main body is designed with passive dynamic characteristics that automatically adapt to water surface movements. The buoyant structure naturally follows surface waves and movements without requiring active control systems, sensors, or user intervention. This maintains treatment efficiency through continuous close proximity to the water surface while preserving ease of operation through completely passive operation.
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 efficiently treats water at a low cost, effectively sterilizing and purifying water by minimizing distance and time required for treatment, making it suitable for regions with limited resources.
Implementation Method 1
a light source unit mounted on the main body and emitting light toward the liquid to treat the liquid, wherein the light source unit includes a light emitting diode
Implementation Method 2
emitting light toward the liquid to treat the liquid
Implementation Method 3
emitting light toward the liquid to treat the liquid
Implementation Method 4
a main body disposed on a liquid surface forming a boundary between air and a liquid and movable vertically and laterally in response to movement of the liquid surface
Data Source
AI summary
A light emitting device comprises: a body which is arranged on the liquid surface that forms the boundary between air and liquid, and which can move up, down, right, or left in accordance with the floating of the liquid surface; and a light source unit, which is mounted on the body so as to emit light at the liquid, thereby processing the liquid.