Laser Projection Pre-Calibration for Safe Audience Distance
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Solution Overview
Problem
Current laser projection systems require extensive on-site setup and testing by trained laser safety officers, posing safety risks and operational inefficiencies due to the need for precise calibration and potential exposure to dangerous laser light.
Innovation Solution
A self-contained laser projection system with a motorized yoke, optics device, and calibration interface that allows pre-calibration for a safe distance, enabling safe operation with built-in safety monitoring and anti-tampering features, allowing for easy deployment and operation by non-experts while ensuring compliance with safety regulations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional laser projection systems are used with expert operation, then safety is ensured through proper calibration and setup, but extensive on-site setup and testing time is required
Solution Approach 1:
The system performs preliminary calibration and safety checks during manufacturing, storing calibration data in memory. This preliminary action eliminates the need for extensive on-site calibration by a laser safety officer, reducing setup time while maintaining safety through pre-validated parameters.
Solution Approach 2:
The laser projection system automatically performs safety checks and calibration verification using stored data without requiring expert intervention. The system self-validates its safety parameters through built-in monitoring that compares real-time operation against pre-stored calibration data, enabling non-experts to operate safely.
2Reliability
If traditional laser projection systems are used with extensive calibration, then safety is ensured through precise parameter adjustment, but device complexity increases
Solution Approach 1:
The system uses digital copies of calibration data stored in memory rather than requiring physical adjustment of numerous components. The stored calibration data represents the optimal safety parameters, and the system simply references this digital copy during operation, simplifying the physical device while maintaining safety.
Solution Approach 2:
The system replaces complex mechanical calibration adjustments with electronic storage and retrieval of calibration parameters. Instead of requiring physical manipulation of optical components by experts, the system uses digital memory to store and automatically apply calibrated safety parameters, reducing mechanical complexity.
3Reliability
If traditional laser projection systems are used with on-site testing, then safety is ensured through measurement of light output, but other workers are exposed to dangerous laser light
Solution Approach 1:
Safety validation is performed preliminarily during manufacturing before the laser is deployed to venues. Calibration data is stored in memory during controlled factory conditions, eliminating the need for on-site testing that would expose workers to dangerous laser light during installation and setup.
Solution Approach 2:
The stored calibration data acts as an intermediary that carries safety validation information from the factory to the venue without requiring physical re-testing. This digital intermediary transfers the safety assurance without exposing workers to laser light, replacing the need for on-site measurement procedures.
Data Source
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AI summary
A laser projection system having built-in safety systems is disclosed. Further disclosed is a method of operating a laser projection system such that safe operation is a factor only of meeting a threshold distance between the laser unit and an audience member. To accomplish safe operation at the threshold distance, the laser projection system is pre-calibrated to operate below maximum permitted exposure levels at the threshold distance. In this manner of operation, laser lighting can be accomplished by non-laser professionals without the complexity, external sensors, and need for calibration at the venue.