Ultraviolet ray radiation apparatus
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Ultraviolet ray radiation apparatuses face challenges in maintaining consistent light emission intensity due to ambient temperature and time-related degradation, affecting the effectiveness of sterilization processes.
Innovation Solution
The apparatus includes a light emitter, a light receiver, and protectors to control and stabilize the ultraviolet light emission, using a control unit to adjust the light emitter based on the signal from the light receiver and employing protectors like light shields and reflectors to attenuate and direct ultraviolet light effectively, ensuring stable light output and extending the apparatus' lifespan.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a light emitter is used to emit ultraviolet light for sterilization, then the sterilization effectiveness is improved, but the light emitter deteriorates over time and its light emission intensity decreases due to ambient temperature and usage duration
Solution Approach 1:
The patent employs a feedback control mechanism where a light receiver detects the actual light emission intensity of the UV light emitter, and a control unit adjusts the drive current to the emitter based on the detected intensity to maintain constant light output. This closed-loop feedback system compensates for the natural deterioration of the light emitter over time and under varying temperature conditions, thereby extending its effective operational lifespan while maintaining sterilization effectiveness.
Solution Approach 2:
The control unit dynamically changes the electrical parameters (drive current) supplied to the light emitter based on detected light intensity and temperature conditions. By adjusting these parameters in real-time, the system compensates for the emitter's degradation and environmental variations, maintaining optimal performance throughout its operational life.
2Measurement precision
If the light receiver is exposed to ultraviolet light to detect light intensity, then the detection accuracy is improved, but the light receiver deteriorates due to ultraviolet light exposure
Solution Approach 1:
The patent extracts the harmful ultraviolet light from the detection path by using a filter that allows only the specific wavelength range emitted by the UV light emitter to pass through to the light receiver. This selective extraction of the useful wavelength range while blocking harmful UV radiation enables accurate light intensity detection without causing deterioration to the light receiver.
Solution Approach 2:
The patent introduces an optical filter as an intermediary between the UV light emitter and the light receiver. This filter mediates the interaction by selectively transmitting the desired wavelength range while blocking harmful ultraviolet radiation, thereby protecting the light receiver from deterioration while maintaining detection accuracy.
3Productivity
If the light emission intensity is increased to improve sterilization effectiveness, then the sterilization performance is improved, but the light receiver deteriorates faster due to higher intensity ultraviolet light
Solution Approach 1:
The patent applies local quality by using different optical properties for different parts of the optical path. The filter is designed with specific wavelength-selective properties that allow high-intensity UV light transmission in the sterilization wavelength range while blocking harmful wavelengths. This localized optimization of optical properties enables high-intensity operation for effective sterilization without compromising the light receiver's lifespan.
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
This configuration ensures stable and consistent ultraviolet light emission, effectively sterilizing targets while prolonging the apparatus' operational life by reducing light receiver deterioration and maintaining performance without overdesigning.
Implementation Method 1
a light emitter configured to emit ultraviolet light
Implementation Method 2
a light receiver configured to output a signal varying with an amount of light received
Data Source
AI summary
An ultraviolet ray radiation apparatus includes a light emitter, a light receiver, and a protector. The light emitter emits ultraviolet light. The light receiver outputs a signal varying with an amount of light received. The protector protects the light receiver from ultraviolet light.