Electrician Face Shield UV IR Radiation Protection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electrician face protection visors fail to effectively protect against radiant heat and UV/IR radiation from arc faults without impairing the wearer's vision or increasing the risk of accidents due to color distortion, and they are often heavy, conductive, or difficult to manufacture.
Innovation Solution
A transparent plastic visor coated with a special self-adhesive plastic film that maintains high visual transmission and color rendering index while reflecting and absorbing UV and IR radiation, using lightweight, flame-retardant, and electrically insulating materials like polycarbonate and acetate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If transparent plastic panes with high light transmission are used, then visibility is improved, but protection against UV and IR radiation is insufficient
Solution Approach 1:
The patent uses a composite structure consisting of a transparent plastic pane (polycarbonate or acetate) combined with a specially coated layer that selectively filters UV and IR radiation while maintaining high visible light transmission. This composite approach allows the visor to provide both excellent visibility and comprehensive radiation protection without the drawbacks of colored filters.
2Object-affected harmful factors
If colored panes are used to filter UV and IR radiation, then radiation protection is improved, but color perception is distorted
Solution Approach 1:
The patent applies a selective filtering approach where the coating on the transparent pane is designed to block specific wavelengths (UV and IR) while allowing visible light wavelengths to pass through unchanged. This localized filtering in the spectral domain maintains color accuracy for visible light while providing protection against harmful radiation, avoiding the color distortion associated with colored panes.
3Temperature
If metal layers are deposited to reflect heat, then thermal protection is improved, but electrical conductivity increases
Solution Approach 1:
The patent changes the material parameters by using non-conductive ceramic coatings or specialized polymer coatings instead of metal layers. These alternative materials provide thermal reflection and radiation blocking properties while maintaining electrical insulation, thus protecting against both thermal hazards and electrical shock without the conductivity problem of metal coatings.
4Object-affected harmful factors
If glass panes with special coatings are used, then radiation protection is improved, but weight increases
Solution Approach 1:
The patent changes from glass material to lightweight plastic materials (polycarbonate or acetate) with thickness optimized for protection. By combining the inherent strength and radiation-blocking properties of these plastics with selective coating layers, the visor achieves adequate radiation protection at a fraction of the weight of traditional glass construction, improving comfort and wearability.
5Object-affected harmful factors
If thick plastic panes are used to block radiation, then radiation protection is improved, but visibility and field of view are reduced
Solution Approach 1:
The patent uses a thin transparent plastic pane combined with a specialized coating layer that provides the radiation blocking function. This composite structure achieves effective UV and IR radiation protection without requiring increased thickness, thereby maintaining excellent visual clarity and an unobstructed field of view that is critical for electrical work.
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 provides effective protection against radiant heat and UV/IR radiation with minimal impairment to the wearer's vision, reducing temperature increase and radiation exposure during arc faults, and is simple and cost-effective to produce.
Implementation Method 1
A transparent plastic visor coated with a special self-adhesive plastic film that maintains high visual transmission and color rendering index while reflecting and absorbing UV and IR radiation
Implementation Method 2
A transparent plastic visor coated with a special self-adhesive plastic film that maintains high visual transmission and color rendering index while reflecting and absorbing UV and IR radiation
Implementation Method 3
using lightweight, flame-retardant, and electrically insulating materials like polycarbonate and acetate
Implementation Method 4
using lightweight, flame-retardant, and electrically insulating materials like polycarbonate and acetate
Data Source
Figure 1
Figure 2
AI summary
The invention relates to a face shield for an electrician for protecting against accidental arcs, comprising a viewing pane, for working on or near electrical installations and operating equipment. The face shield comprises a protective shield arranged on a supporting body or framed in textile materials. The protective shield comprises a transparent plastic plate having a thickness between 1 and 10 mm, the color rendering index according to EN 410 of which should be greater than 90. The thickness and quality are selected in such a way that breakdown cannot occur in the event of an accidental arc. A thin, flexible plastic film is applied to the plastic plate, the thickness of which plastic film is selected between 0.01 mm and 0.5 mm. Said plastic film has a visual transmittance according to EN 410 of at least 40% and a color rendering index according to EN 410 greater than 90.