Laser Irradiation Overlap Control for Precise Surface Patterning
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Solution Overview
Problem
Existing processing apparatuses struggle to accurately form structures on objects using laser light, particularly in forming precise patterns and patterns that extend in desired directions, due to limitations in controlling the overlap and relative positioning of irradiation areas.
Innovation Solution
A processing apparatus and system that utilize a light irradiation apparatus to form multiple overlapping irradiation areas with controlled overlap states, combined with movable apparatuses to adjust relative positions and optical systems to direct processing lights, enabling precise pattern formation on objects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple processing lights are used to form overlapping irradiation areas, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The processing apparatus divides a single laser beam into multiple processing lights using optical splitting elements (beam splitters, mirrors, or diffraction gratings). Each processing light forms a separate irradiation area on the object, and by controlling the overlap of these areas, precise pattern formation is achieved. This segmentation approach allows multiple irradiation zones to be processed simultaneously or sequentially with high precision without requiring multiple independent laser sources.
Solution Approach 2:
The patent employs movable apparatuses that operate in different spatial dimensions to adjust the relative positions of irradiation areas. By introducing controlled movement in specific directions (along the surface or perpendicular to it), the system can create and modify overlapping patterns dynamically, enabling precise structure formation while maintaining a relatively simple optical configuration.
2Manufacturing precision
If movable apparatuses are used to adjust relative positions of irradiation areas, then manufacturing precision is improved, but productivity decreases
Solution Approach 1:
The movable apparatuses are configured to pre-adjust the relative positions of irradiation areas before the actual processing begins. By establishing the correct geometric arrangement and overlap of processing lights in advance, the system eliminates the need for continuous real-time adjustments during processing, thereby maintaining high positioning precision while avoiding productivity losses from frequent movements.
Solution Approach 2:
The system incorporates movable components that can dynamically adjust the position and orientation of irradiation areas during processing. This dynamic capability allows the apparatus to adapt to different processing requirements and maintain optimal positioning without requiring complete reconfiguration, thus balancing precision and productivity.
3Manufacturing precision
If the overlap state of irradiation areas is changed, then manufacturing precision is improved, but loss of time increases
Solution Approach 1:
The processing apparatus employs periodic or pulsed illumination modes where the processing lights are activated in sequences or patterns. By using periodic action, the system can create complex overlapping patterns through time-multiplexed illumination, achieving high precision pattern formation without requiring continuous physical movement or reconfiguration of the optical paths, thus minimizing time loss.
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
Enables the formation of desired pattern structures with high precision and control, allowing for the creation of structures that extend in specific directions on the object's surface.
Implementation Method 1
a light irradiation apparatus that emits first processing light to form a first irradiation area on the surface and emits second processing light to form a second irradiation area
Data Source
AI summary
A processing apparatus is a processing apparatus that irradiates a surface of an object with processing light to process an object and is provided with: a light irradiation apparatus that emits first processing light to form a first irradiation area on the surface and emits second processing light to form a second irradiation area, at least a part of which overlaps with the first irradiation area, on the surface, and has a change member that is configured to change a state of an overlap between the first and second irradiation areas.