Ultraviolet light emitting device, and air treating device
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Solution Overview
Problem
Existing ultraviolet light emitting devices do not allow subjects to recognize the state of ultraviolet rays emitted, making it difficult to avoid excessive exposure.
Innovation Solution
Incorporating a light emitter that emits visible light to indicate the state of ultraviolet rays, including intensity, wavelength, and irradiation region, allowing subjects to recognize these parameters through illuminance and hue changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ultraviolet rays are emitted into the installation space, then sterilization effect is improved, but subjects cannot recognize the state of ultraviolet rays leading to potential excessive exposure
Solution Approach 1:
The patent employs visible light indicators that change color or illuminate to represent different states of ultraviolet radiation. The light emitter converts invisible UV parameters (intensity, wavelength, irradiation region) into visible color signals, allowing subjects to recognize UV conditions without exposing themselves to harmful radiation levels.
Solution Approach 2:
The patent introduces a light emitter as an intermediary device that mediates between the ultraviolet irradiator and human subjects. This intermediary converts UV information into visible light form, enabling indirect observation of UV states without direct exposure, thus resolving the contradiction between effective sterilization and safe recognizability.
2Loss of information
If visible light indicators are added to indicate UV state, then recognizability is improved, but device complexity increases
Solution Approach 1:
The light emitter serves multiple functions simultaneously: it acts as a visible indicator for UV state recognition, provides spatial orientation of the irradiator, and communicates operational status. This multi-functionality reduces the need for separate indicator systems, thereby limiting the increase in device complexity while achieving improved recognizability.
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
Enables subjects to quickly and accurately determine the ultraviolet light conditions, facilitating safe exposure and effective sterilization by avoiding excessive UV exposure.
Implementation Method 1
a light emitter configured to emit visible light in accordance with the state of the ultraviolet light
Data Source
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AI summary
An ultraviolet light emitting device includes: an irradiator (20) configured to emit ultraviolet light into a target space (S) where a subject is present; and a recognizer (30) configured to notify the subject of a state of the ultraviolet light emitted from the irradiator (20).