LED Lamp Structure for Microbial Load Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing microbial reduction technologies using blue-violet LEDs in healthcare settings face issues with overheating, limited environmental versatility, and potential health hazards due to ultraviolet emission, and require complex installations and temperature control systems.
Innovation Solution
A LED lamp with an aluminum core circuit board and a combination of blue-violet LEDs emitting within specific wavelength intervals (405-420 nm) paired with white LEDs for adjustable color temperature, eliminating the need for temperature control components and ensuring safe, effective microbial reduction in various environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If intense blue-violet LEDs are used for microbial reduction, then microbicidal effectiveness is improved, but overheating occurs
Solution Approach 1:
The patent changes the wavelength parameter of the LEDs from conventional blue-violet (around 450nm) to a specific range of 405-420nm. This parameter change maintains microbicidal effectiveness while reducing the energy consumption and heat generation of the LEDs, thereby resolving the overheating issue.
Solution Approach 2:
The patent employs a composite structure combining multiple LED types (blue-violet LEDs for microbicidal action and white LEDs for illumination) with a photocatalytic material layer (titanium dioxide). This composite approach distributes the functional requirements across different components, allowing the blue-violet LEDs to operate at lower power levels while achieving effective microbial reduction through the synergistic action of light and photocatalysis.
2Reliability
If blue-violet LEDs with wavelength peak 405-420 nm are used, then microbicidal action is improved, but health hazards may occur
Solution Approach 1:
The patent precisely controls the wavelength parameter within the 405-420nm range, which is the optimal band for activating photocatalytic materials like titanium dioxide. By staying within this specific range and avoiding shorter wavelengths, the system achieves effective microbicidal action through photocatalysis while minimizing the risk of harmful ultraviolet exposure to humans.
Solution Approach 2:
The patent introduces photocatalytic material (titanium dioxide) as an intermediary substance that absorbs the blue-violet light and generates reactive oxygen species to kill microorganisms. This intermediary mechanism allows the system to achieve microbicidal effects without requiring intense direct UV radiation, thereby reducing health hazards while maintaining effectiveness.
3Reliability
If photocatalytic material is added to enhance microbicidal action, then microbicidal effectiveness is improved, but device complexity increases
Solution Approach 1:
The patent merges the illumination function and microbicidal function into a single integrated system. The blue-violet LEDs serve dual purposes: providing necessary illumination and activating the photocatalytic material for microbial reduction. This merging eliminates the need for separate systems and reduces overall device complexity while enhancing microbicidal effectiveness.
Solution Approach 2:
The patent makes the lighting fixture multi-functional by combining illumination, microbicidal action, and photocatalytic degradation of organic contaminants into a single device. The blue-violet LEDs and photocatalytic material work together to achieve multiple functions simultaneously, reducing the need for additional components and simplifying the overall system.
4Temperature
If temperature control systems are implemented to prevent overheating, then thermal management is improved, but device complexity and cost increase
Solution Approach 1:
The patent employs passive thermal management through the circuit board's aluminum core, which naturally conducts heat away from the LEDs without requiring active temperature control systems. The system self-regulates thermal conditions through the inherent thermal conductivity of the aluminum substrate, eliminating the need for complex active cooling mechanisms.
5Reliability
If specialized installation systems are used for microbicidal devices, then microbicidal effectiveness is improved, but ease of installation deteriorates
Solution Approach 1:
The patent designs the lighting fixture as a universal solution that can be installed in standard lighting sockets and used in various environments (healthcare, domestic, public spaces) without requiring specialized installation infrastructure. The fixture maintains microbicidal effectiveness across different settings while being compatible with existing lighting installations, greatly improving ease of deployment.
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 solution achieves efficient microbial reduction without overheating or health risks, allowing for versatile use in healthcare and domestic settings with reduced energy consumption and simplified production.
Implementation Method 1
the heat generated by the LEDs on said circuit board, regardless of their power, is constantly dissipated
Implementation Method 2
blue-violet LEDs which emit visible electromagnetic radiation with a wavelength peak within certain intervals
Implementation Method 3
use an additive, titanium dioxide (TIO2), that exerts its action by Photocatalysis
Implementation Method 4
On the whole surface of the diffuser (103) there may be a photocatalytic material based on Titanium Dioxide (TIO2), or Tungsten Trioxide (WO3), or other material that exerts an analogous action that is biocide and/or virucidal
Data Source
AI summary
Purpose of the present invention is to provide a basic structure for a LED lamp, that is comprised of an aluminum core circuit board, and a base combination of violet-blue LEDs emitting visible electromagnetic radiation which wavelength has a peak that is comprised in given intervals, and that, because of the technical and constructive characteristics of the device, will allow it to break down the microbial load present in any environment, without creating any adverse or dangerous effects for human beings or animals that live there.