Welding Helmet Side Light Switching Window
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Solution Overview
Problem
Welding helmets with conventional semitransparent side surfaces are hindered by external light, leading to reduced worker concentration and increased uneasiness due to excessive brightness.
Innovation Solution
A welding helmet with a light switching window on its side surface, comprising a semitransparent window and a rotatable light switching cover, allows for convenient transmission or blocking of external light, enhancing visibility and safety by controlling light entry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a semitransparent window is formed on the side surface of the welding helmet, then the worker can see the surrounding environment, but external light enters the helmet causing worker uneasiness and reduced concentration
Solution Approach 1:
The patent applies a rotatable light switching cover that can dynamically change between transparent and opaque states. This dynamic element allows the side window to adapt its light transmission properties based on working conditions, resolving the contradiction between needing visibility and needing light blocking by making the optical property changeable rather than fixed
Solution Approach 2:
The patent changes the optical parameter (transparency) of the side window by providing a light switching cover that rotates to expose either the transparent window or an opaque portion. This parameter change allows the same physical structure to provide different optical characteristics depending on the rotational position, thereby resolving the contradiction between visibility and light interference
2Loss of information
If the side surface of the welding helmet is made transparent for visibility, then the worker can monitor the environment, but worker concentration deteriorates under bright external light
Solution Approach 1:
The rotatable light switching cover provides dynamic control over light transmission, allowing the worker to switch between transparent and opaque states based on whether environmental monitoring or concentration is the priority. This dynamic adjustment capability resolves the contradiction by making the system adaptable to different working phases
Solution Approach 2:
The light switching mechanism is designed to be easily operable by the worker themselves, allowing self-adjustment of light transmission without requiring assistance. The worker can independently control the transparency state to match their immediate needs, thereby maintaining both environmental awareness and concentration as needed
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 light switching window enables workers to identify risk factors, enlarge their operating radius, prevent uneasiness, block unnecessary light, and maintain concentration by adjusting light entry, thereby improving work efficiency and safety.
Implementation Method 1
a light switching window formed on a side surface of the helmet body portion such that external light is conveniently transmitted or blocked by the light switching window
Data Source
AI summary
Disclosed herein is a welding helmet in which a worker may transmit and block external light as necessary by forming a light switching window for blocking external light from a side surface of the welding helmet (helmet). The welding helmet equipped with a light switching window, which includes a helmet body portion which protects the worker's face and a cartridge which blocks harmful light generated during welding to protect the worker's eyes, includes a light switching window formed on a side surface of the helmet body portion such that external light is transmitted or blocked by the light switching window. The light switching window has a structure in which it may be possible to identify risk factors around a work area and a worker may block unnecessary light as necessary. Particularly, since an operating radius is enlarged, it may be possible to provide the worker with convenience.