Reflective Mirror Alignment Control for Laser Optical Path Correction
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Solution Overview
Problem
Conventional laser apparatuses lack the capability to automatically examine and correct distortion in the optical path of laser beams, leading to deterioration in processing quality due to external forces, wear, and aging of components.
Innovation Solution
A laser apparatus with a mirror mount assembly, aligner, examination module, calculation module, and controller that automatically detects and corrects optical path distortion by recalculating and adjusting the target driving speed and time of a driving motor to ensure the laser beam follows a predetermined reference optical path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional laser apparatus is used without automatic examination and correction capabilities, then the device complexity is low, but the processing quality deteriorates due to optical path distortion
Solution Approach 1:
The examination module performs preliminary detection of optical path distortion before it significantly affects processing quality. By continuously monitoring the optical path and detecting deviations early, the system can initiate correction procedures before the distortion leads to poor processing results, thus maintaining high manufacturing precision
Solution Approach 2:
The system establishes a closed-loop feedback mechanism where the examination module continuously monitors the optical path, compares it with reference values, and feeds this information to the calculation module. The calculation module then determines appropriate correction actions and controls the aligner to adjust optical members, thereby maintaining processing quality through real-time feedback and correction
2Reliability
If an examination module and correction system are added to detect and correct optical path distortion, then the processing quality is maintained, but the device complexity increases
Solution Approach 1:
The examination module is designed to detect various types of optical path deviations using a unified approach. The same examination and correction system can handle different causes of distortion (vibration, thermal expansion, mechanical drift) by monitoring optical path differences against reference values, making the system versatile and reducing the need for multiple specialized components
Solution Approach 2:
The laser apparatus performs self-diagnosis and self-correction of optical path distortion. The examination module automatically detects deviations, the calculation module computes correction parameters, and the aligner executes adjustments without requiring external intervention or complex manual calibration procedures, thereby maintaining reliability while managing system complexity
3Manufacturing precision
If the examination module continuously monitors optical path distortion, then the processing quality is improved, but the loss of time increases due to recalculation and re-adjustment cycles
Solution Approach 1:
The examination module continuously monitors the optical path at high frequency, detecting even minor deviations. Rather than waiting for significant distortion to occur, the system performs partial corrections frequently to maintain optimal optical path accuracy. This approach prevents large deviations that would require more time-consuming corrections
Solution Approach 2:
The system performs preliminary detection and calculation of correction parameters before the optical path distortion significantly impacts processing. By anticipating and addressing deviations early in the correction process, the system minimizes the time required for actual adjustment and maintains continuous operation with minimal interruption
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 solution enables precise correction of optical path distortion, improving processing quality by ensuring the laser beam accurately targets the intended location, thereby enhancing the overall performance and reliability of the laser processing.
Implementation Method 1
a mirror mount assembly including a mount-side reflective mirror for transmitting the laser beam by reflecting the laser beam
Implementation Method 2
an aligner including a dial that is configured to change alignment of the mount-side reflective mirror according to a rotation angle and a rotation direction and is responsible for adjusting, by a degree of displacement of a reflection angle of the mount-side reflective mirror according to change in the alignment state, a processing optical path through which the laser beam travels
Data Source
AI summary
The present disclosure relates to a laser apparatus including a laser oscillator for oscillating a laser beam; a mirror mount assembly including a mount-side reflective mirror for transmitting the laser beam by reflecting the laser beam; an aligner including a dial that is configured to change alignment of the mount-side reflective mirror according to a rotation angle and a rotation direction and is responsible for adjusting, by the degree of displacement of the reflection angle of the mount-side reflective mirror according to change in the alignment state, a processing optical path through which the laser beam travels, and a driving motor for driving rotation of the dial; an examination module for calculating the optical path difference between a predetermined reference processing optical path and the processing optical path and examining whether optical path distortion occurs on the processing optical path; a calculation module for, when the optical path difference exceeds predetermined reference optical path difference, calculating the target driving speed and target driving time of the driving motor for changing alignment of the mount-side reflective mirror to correct the optical path distortion so that the optical path difference is less than or equal to the predetermined reference optical path difference; and a controller for driving the driving motor according to the target driving speed and the target driving time, wherein the examination module recalculates the optical path difference between the reference processing optical path and the processing optical path that has been changed by the driving motor according to the target driving speed and the target driving time and re-examines whether the optical path distortion occurs, the calculation module recalculates the target driving speed and the target driving time based on the recalculated optical path difference when the recalculated optical path difference exceeds the reference optical path difference, and the controller drives the driving motor again according to the recalculated target driving speed and target driving time.