Mobile Laser Glass Processing for EMC-Compatible Coatings
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Solution Overview
Problem
Existing mobile laser devices lack the flexibility and precision needed for processing glass sheets installed in vehicles or structures, particularly in terms of maintaining electromagnetic compatibility while providing high processing quality.
Innovation Solution
A mobile laser device with a gantry system that includes a laser unit with interchangeable radiation sources, an optical z-focus adjustment device, and a distance measuring device, allowing for precise processing of glass sheets at different locations, including vehicles and structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a metallic functional coating is applied to glass sheets for thermal protection, then thermal insulation performance is improved, but electromagnetic wave transmission (mobile phone signal) deteriorates due to Faraday cage effect
Solution Approach 1:
The metallic functional layer is transformed into a porous or mesh-like structure through laser processing, creating openings that allow electromagnetic waves to pass through while maintaining the thermal reflection properties of the metallic coating. This porous structure resolves the contradiction by permitting signal transmission while preserving thermal insulation.
Solution Approach 2:
The metallic coating is selectively processed in specific patterns or regions, creating areas with different properties. Some regions maintain continuous metallic coverage for thermal protection, while other regions have openings or reduced density to allow electromagnetic wave transmission, thus locally optimizing both functions.
2Ease of manufacture
If existing mobile laser devices are used for processing installed glass sheets, then processing capability is provided, but processing precision and flexibility are insufficient
Solution Approach 1:
The patent replaces mechanical measurement and positioning systems with optical-based laser technology. The laser device uses optical sensors and laser ranging to precisely measure distances and positions, eliminating mechanical contact and improving both precision and flexibility for processing installed glass sheets.
Solution Approach 2:
The laser device incorporates dynamic focusing capabilities and adjustable parameters that allow real-time adaptation during processing. The system can dynamically adjust focus distance, laser power, and scanning speed to optimize processing precision for different glass sheet positions and conditions.
3Object-generated harmful factors
If laser processing is performed on glass sheets with functional coatings, then electromagnetic compatibility is improved, but processing quality control becomes difficult
Solution Approach 1:
The laser device incorporates feedback mechanisms through optical sensors that continuously monitor the processing state. The system measures reflected light, temperature changes, or other parameters to detect processing quality in real-time and automatically adjusts laser parameters to maintain consistent quality while achieving electromagnetic compatibility.
Solution Approach 2:
The device performs preliminary measurement and planning before actual laser processing. It scans the glass sheet, identifies the functional coating locations, and pre-calculates the optimal processing path and parameters, ensuring quality control is established before processing begins.
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 mobile laser device enables flexible and high-quality processing of glass sheets, ensuring precise control over the laser focus and allowing for various processing methods, including ablation, modification, and transfer printing, while maintaining electromagnetic compatibility.
Implementation Method 1
the metallic functional layer is processed with a laser. By use of a laser, a structure is engraved into the metallic functional layer, whereby approx. 2.5% of the surface is removed.
Implementation Method 2
The laser device is used to at least partially ablate or to modify the superficial glass pane coating
Data Source
AI summary
A mobile laser device for processing glass sheets installed in an object, preferably in a vehicle, preferably in a train, or in a structure work, preferably in a building, and the use of the laser device and a method for processing a glass sheet.