Safety Checking Apparatus for Laser Beam Scattering Control
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Solution Overview
Problem
Existing safety measures for high power light sources, such as laser beams, often fail to secure safety for individuals and objects outside the direct light path, as they do not effectively account for scattered and reflected beams, which can cause harm.
Innovation Solution
A safety checking apparatus and method that determines the safety level of assets based on their position, area, and irradiation direction, using energy density calculations and comparison with reference values, to control the properties or stop the irradiation of the beam, ensuring safety for both people and objects within the beam's influence area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If high power light sources are used in open spaces, then the utility and effectiveness of the beam irradiation system is improved, but the safety of persons and objects outside the direct light path deteriorates due to scattered and reflected beams
Solution Approach 1:
The safety checking apparatus performs preliminary safety assessments before beam irradiation by calculating energy density distributions and identifying potential hazard zones. This advance preparation allows the system to establish safety protocols and controlled areas before high power beam activation, preventing harm to persons and objects outside the direct light path.
Solution Approach 2:
The system continuously monitors the beam environment and adjusts irradiation parameters based on real-time safety assessments. The safety checking apparatus provides feedback on energy density levels and hazard zones, enabling dynamic control of the beam properties to maintain safety while preserving utility.
2Reliability
If controlled areas are established to secure safety, then the safety of persons is improved, but the ease of operation and accessibility deteriorates
Solution Approach 1:
The safety checking apparatus identifies specific hazard zones based on calculated energy density distributions rather than establishing blanket controlled areas. This localized approach to safety management restricts access only to regions where scattered and reflected beams pose actual risks, while leaving other areas accessible for normal operations.
Solution Approach 2:
The system dynamically adjusts safety zone boundaries and controlled area definitions based on changing beam parameters such as power level, irradiation direction, and target position. This adaptive approach allows controlled areas to be minimized to only necessary regions, improving accessibility while maintaining safety.
3Reliability
If safety checks are performed for scattered and reflected beams, then the safety level is improved, but the device complexity increases
Solution Approach 1:
The safety checking apparatus integrates multiple functions including energy density calculation, hazard zone identification, and safety assessment into a single unified system. This multi-functional design avoids the need for separate complex subsystems for each safety check, reducing overall device complexity while maintaining comprehensive safety coverage for scattered and reflected beams.
Data Source
AI summary
A safety checking apparatus is provided with a determining section and a result data control section. The determining section determines a safety level of an asset to an incident beam according to an irradiation beam based on the irradiation direction of the irradiation beam and a position or area of the asset. The result data control section carries out a notification to the asset according to the safety level determined by the determining section. Thus, the safety level is determined to a person and a thing one in a region out of a path of the beam.