Laser-Etched Polymeric Articles for Readable Optical Codes
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Solution Overview
Problem
Current methods for forming polymeric articles with visual features, such as electronic codes, are limited in their ability to efficiently produce articles with readable encoded indicia that can be scanned by optical cameras, especially on materials with challenging properties like black or reflective surfaces, and lack integration with augmented reality functionality.
Innovation Solution
An article forming system that includes an extruder, a thermoforming device, and a laser etching unit, where the laser etching unit uses a control system to adjust laser intensity and position based on material characteristics to form encoded visual indicia on polymeric articles, enabling scanning by optical cameras and integration with augmented reality applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional methods are used to form visual features on polymeric articles, then the process is simple, but the encoded indicia are not readable on challenging materials like black or reflective surfaces
Solution Approach 1:
The patent applies parameter changes by adjusting laser intensity, pulse duration, and scanning patterns to optimize the etching process for different material types. The system modifies these parameters dynamically based on material characteristics to achieve readable encoded indicia on challenging surfaces like black or reflective materials while maintaining process simplicity.
2Manufacturing precision
If laser etching is used to form encoded visual indicia, then readable codes can be produced on various materials, but the device complexity increases
Solution Approach 1:
The patent implements universality by designing a laser etching system that can handle multiple material types and produce various encoded indicia formats through a single integrated apparatus. The system uses programmable laser parameters and automated control to perform different etching patterns, depths, and configurations, eliminating the need for multiple specialized devices while maintaining high quality encoded visual indicia.
3Manufacturing precision
If the laser etching unit adjusts parameters based on material characteristics, then the quality of encoded indicia improves, but the control system complexity increases
Solution Approach 1:
The patent applies feedback by incorporating material characterization sensors that automatically detect material properties and adjust laser etching parameters in real-time. This closed-loop control system uses sensor data to dynamically modify laser intensity, speed, and pattern, ensuring high-quality readable indicia without requiring complex manual intervention or overly complicated control architecture.
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
The system effectively produces polymeric articles with readable encoded visual indicia on various materials, including those with difficult properties, and enables interaction with augmented reality, enhancing user experience and recyclability through encoded information.
Implementation Method 1
The laser etching unit includes a laser configured produce a laser beam when energized to etch encoded visual indicia into a surface of each of the plurality of article preforms
Implementation Method 2
the laser forms the encoded visual indicia on the surface of the article preform
Data Source
AI summary
An article forming system includes an extruder configured to extrude a sheet of polymeric material and a thermoforming device configured to form the sheet into a plurality of article preforms a carrier web coupled to each of the article preforms. Polymeric articles formed from the article preforms include encoded visual indicia.