Handheld Laser Welding Beacon for Visible Hazard Warning
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Solution Overview
Problem
Laser welding systems pose hazards due to invisible laser beams and lack of visible warnings, leading to potential eye and skin damage without proper personal protective equipment (PPE) usage.
Innovation Solution
Incorporation of a beacon system that emits visible light to alert operators and bystanders of imminent laser welding, with adjustable intensity and timing to encourage PPE use, and lenses that filter harmful wavelengths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If laser welding is performed without visible warning, then welding speed and productivity are maintained, but safety hazards increase due to invisible laser beams causing eye and skin damage
Solution Approach 1:
The beacon is activated before the laser welding process begins, providing advance warning to operators and bystanders. This preliminary action allows people to take protective measures (such as wearing PPE or moving away) before the invisible harmful laser radiation starts, thus preventing eye and skin damage while maintaining welding productivity.
Solution Approach 2:
The beacon acts as an intermediary between the laser welding system and human operators/bystanders. It translates the invisible laser activation signal into a visible warning that humans can perceive and respond to, bridging the gap between the invisible harmful radiation and human awareness.
2Object-affected harmful factors
If beacon intensity is increased to improve visibility warning, then safety awareness is enhanced, but operator comfort decreases due to excessive light exposure
Solution Approach 1:
The beacon intensity is adjusted to optimal parameters that provide sufficient visibility for safety warning without exceeding comfort thresholds for operators. The system modifies the light intensity parameter to balance effective warning delivery with operator comfort during the welding process.
Solution Approach 2:
The beacon operates periodically or in pulses rather than continuously at maximum intensity. This periodic activation provides repeated warnings to ensure awareness while reducing cumulative light exposure that would cause operator discomfort or strain.
3Object-affected harmful factors
If beacon is activated continuously during welding, then safety warning is maintained, but energy consumption increases
Solution Approach 1:
The beacon is activated periodically during the welding process rather than continuously, maintaining safety warnings at critical moments while reducing overall energy consumption during less critical phases of the welding cycle.
Solution Approach 2:
The beacon is activated in advance before the harmful laser radiation begins and deactivated after the process completes. This preliminary and concluding activation pattern ensures safety coverage during the most critical periods while minimizing unnecessary energy consumption during safe periods.
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
Enhances compliance with PPE usage by providing a visible warning and filtered light view, protecting operators and bystanders from laser hazards.
Implementation Method 1
a beacon system that emits visible light to alert operators and bystanders
Implementation Method 2
lenses that filter harmful wavelengths
Data Source
AI summary
Systems and methods for laser welding are disclosed. A laser welding system employs a beacon to indicate laser welding will or has commenced. The beacon emits an intense light in a visible spectrum, such that a filter or lens is needed to block the intensity of the light.