Laser Lens Module Assembly for Vibration-Stable Beam Positioning
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Solution Overview
Problem
In laser devices used for cutting processes, vibrations can distort the processing position, leading to suboptimal marking, cutting, welding, or heat treatment, thereby deteriorating the processing quality of objects such as display devices.
Innovation Solution
The laser device incorporates a large diameter lens module with a connecting part that has a diameter greater than the individual lens parts, along with a lens adaptor that includes movable adapters to control the gap between them, facilitating easy installation, replacement, and alignment of the lens module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the lens module is fixed to the frame in a cantilever format, then the device complexity is reduced, but the processing position is distorted due to vibration
Solution Approach 1:
The lens module is divided into multiple lens parts (first lens part, second lens part, etc.) that are accommodated in separate lens housings. These segmented lens parts are then collectively supported by a plurality of support members distributed across the frame, rather than using a single cantilever fixation point. This segmentation allows each lens part to be independently positioned and supported, reducing vibration-induced distortion while maintaining structural simplicity.
2Manufacturing precision
If a large diameter lens module is used to improve processing quality, then the manufacturing precision is improved, but the device complexity increases due to additional adaptors and spacing control mechanisms
Solution Approach 1:
The lens adaptor incorporates movable adaptors that can adjust the spacing between lens parts along the optical axis. This dynamic adjustment capability allows the system to accommodate different lens module configurations and optimize processing quality for various applications. The spacing control member enables precise positioning of lens parts while maintaining a relatively simple overall structure through standardized adaptor interfaces.
3Ease of repair
If the lens parts are accommodated in separate lens housings, then the ease of repair is improved, but the device complexity increases due to additional connecting parts
Solution Approach 1:
The lens module is segmented into multiple independent lens parts, each accommodated in its own lens housing. These modular lens assemblies can be independently removed, replaced, or repaired without affecting other lens parts. The connecting parts use standardized interfaces that simplify assembly and disassembly operations, making maintenance and repairs more accessible while keeping the overall structure manageable through modular design.
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
This configuration enhances the stability and precision of the laser device by distributing the load and reducing vulnerability to vibrations, thereby improving the quality of processing tasks such as cutting and marking.
Implementation Method 1
a lens module located on a path of a controlled laser beam, where the lens module converges the laser beam
Data Source
AI summary
A laser device includes a laser source which emits a laser beam, a scanner located on a path of the laser beam emitted from the laser source to control the path of the laser beam, a lens module located on a path of a controlled laser beam to converge the laser beam, and a lens adaptor connecting the lens module to the scanner. The lens module includes a first lens part which accommodates a first lens, a second lens part which accommodates a second lens, and a connecting part located between the first lens part and the second lens part, where the connecting part has a longest diameter greater than a longest diameter of the first lens part and a longest diameter of the second lens part.


