Ultraviolet Irradiation Device Visual Confirmation
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Solution Overview
Problem
The existing ultraviolet irradiation devices for fluid sterilization, such as those described in PTL 1, do not allow the lighting state of the light source to be visually confirmed from the outside, making it impossible to determine if the fluid is properly sterilized.
Innovation Solution
An ultraviolet irradiation device that includes a storage wall with a first transmission portion thinner than the rest, which transmits visible light emitted from the light source to the outside while reflecting ultraviolet light, allowing the lighting state of the light source to be visually recognized.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the housing is made of stainless steel to ensure durability and sterilization, then the structural strength and sterilization effectiveness are improved, but the ability to visually confirm the light source operation from outside is lost
Solution Approach 1:
The patent applies a light-transmitting portion with different optical properties to the stainless steel housing. This portion allows visible light to pass through while maintaining the overall stainless steel construction, enabling visual confirmation of the light source operation without compromising the sterilization effectiveness of the complete housing structure.
2Ease of operation
If a light-transmitting portion is added to allow visual confirmation, then the ease of operation is improved, but the structural integrity and sterilization capability may be compromised
Solution Approach 1:
The patent implements a light-transmitting portion at a specific location on the housing rather than making the entire housing transparent or using a separate viewing window. This localized modification allows visual confirmation while maintaining the structural integrity and sterilization capability of the overall stainless steel housing structure.
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 the visual confirmation of the lighting state of the light source from the outside, ensuring proper sterilization of the fluid.
Implementation Method 1
a first transmission portion formed thinner than a region of the storage wall other than the first transmission portion and configured to transmit part of the visible light emitted from the light source to the outside
Implementation Method 2
configured to transmit part of the visible light emitted from the light source to the space
Data Source
AI summary
An ultraviolet irradiation device includes a storage wall defining a space configured to store fluid, and a light source configured to simultaneously emit ultraviolet light and visible light into the space. The storage wall includes a first transmission portion which is formed thinner than other regions of the storage wall and is configured to transmit part of the visible light emitted from the light source to the space.