Selective Irradiation Control Using Real-Time Dose and Effect Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing irradiation processes lack real-time control over energetic radiation sources, leading to energy and time losses due to continued emission after achieving the desired result or failure to achieve the result due to stopping at predetermined parameters.
Innovation Solution
A method and system for controlled selective irradiation using a programmable emitting device, measurement and analysis device, and controller, which adjusts radiation based on real-time actual energy and effect measurements, including collateral energies, to achieve targeted effects efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If conventional laser systems are used for surface treatment, then the laser beam can be focused to a small spot size, but the irradiation area is limited and treatment time increases
Solution Approach 1:
The laser beam is segmented into multiple independent beamlets using a diffractive optical element (DOE), transforming a single focused spot into multiple simultaneously active spots arranged in specific patterns, thereby increasing the total irradiation area while maintaining treatment precision
Solution Approach 2:
The patent transitions from one-dimensional linear scanning to two-dimensional parallel processing by generating multiple beamlets that can be arranged in linear, areal, or volumetric patterns, enabling simultaneous treatment of multiple locations across the surface
2Productivity
If multiple lasers are used to increase irradiation area, then treatment speed improves, but system complexity and cost increase
Solution Approach 1:
Multiple laser beamlets that would require separate laser sources are merged into a single laser system by using a diffractive optical element to split one laser beam into multiple coherent beamlets, achieving multi-spot treatment with a single laser source
Solution Approach 2:
A diffractive optical element (DOE) serves as an intermediary component that transforms a single laser beam into multiple beamlets, acting as the key mediator that enables complex multi-spot patterns without requiring multiple laser sources or complex mechanical systems
3Power
If high power density is concentrated on a small area, then material processing efficiency is high, but the treated area is limited
Solution Approach 1:
The concentrated power is segmented into multiple beamlets distributed across different spatial locations, maintaining high power density at each spot while collectively covering a larger total area through parallel processing
Solution Approach 2:
The patent changes the spatial distribution parameter of the laser beam by using diffractive optics to create multiple focal spots with controlled intensity profiles, thereby transforming the power distribution from a single concentrated point to multiple distributed points
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
Reduces energy and financial losses by stopping irradiation when the target effect is achieved, minimizes peripheral irradiation, and ensures precise control over the irradiation process, reducing risks of damage to adjacent areas.
Implementation Method 1
a diffractive optical element (DOE) is positioned in the laser beam path upstream of the target area to modulate the laser beam into a plurality of beamlets
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present invention relates to a method for the controlled selective irradiation of a target zone (C) of a surface (S) of a given product or living being, to allow the local irradiation of this target zone (C) in order to obtain a target effect (O), this method being implemented by a system (1) comprising an emitting device (11), at least one measurement and analysis device (12) and a control device (13), this method comprising the steps of: - real-time measurement and recording of the actual principal energy (E1C) at the level of the target zone (C), - analysis and recording of the actual effect (A1C) obtained at the level of this target zone (C), and - real-time control of the emitting device (11) by the control device (13), taking into account the measurement of the actual principal energy (E1C) and the analysis of the actual effect (A1C),which are compared respectively to a predetermined energy threshold (E2C) associated with the target area (C) and to the expected target effect (O), such that, if the predetermined energy threshold (E2C) is not reached but the target effect (O) is obtained, the irradiation of the target area (C) is stopped.