Spot-Gridded Beam Collimation for Offset and Distortion Correction
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Solution Overview
Problem
Conventional optical technologies struggle to adapt to random environmental changes and dynamic disturbances, leading to beam deviation and quality degradation during long-distance laser transmission, which affects measurement accuracy and system operation.
Innovation Solution
An adaptive beam collimation and quality optimization system using spot gridding and image processing to correct beam offset and distortion by combining spot gridding with piezoelectric ceramic modules and real-time image feedback control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If adaptive optical technology is used to improve beam wavefront quality, then beam quality is improved, but beam divergence after long-distance transmission cannot be solved
Solution Approach 1:
The patent segments the spot image into multiple small unit spots through gridding, allowing independent analysis and correction of different regions. This segmentation enables the system to address both wavefront quality and beam collimation by treating different spatial regions separately, resolving the contradiction between improving wavefront quality and maintaining beam collimation over long distances
Solution Approach 2:
The patent introduces intensity distribution analysis as an additional dimension for beam quality assessment. By analyzing not only wavefront phase but also intensity variations across the spot profile, the system gains comprehensive control over both beam quality and collimation, transforming a single-parameter optimization problem into a multi-dimensional solution space
2Measurement precision
If conventional optical technology is used to reduce beam deviation, then measurement accuracy is improved, but the system cannot adapt to random environmental changes
Solution Approach 1:
The patent implements real-time feedback control by continuously monitoring spot position and intensity distribution, comparing them against reference values, and dynamically adjusting optical elements to compensate for environmental disturbances. This feedback mechanism enables the system to maintain measurement accuracy while adapting to random environmental changes such as temperature fluctuations and atmospheric turbulence
Solution Approach 2:
The system performs self-diagnosis and self-correction by automatically detecting beam deviations and quality degradation, then triggering appropriate compensation actions without external intervention. This self-service capability allows the system to maintain measurement precision under varying environmental conditions while reducing operational complexity
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
Simultaneously corrects beam offset and distortion caused by random factors like vibration, temperature, and atmospheric turbulence, achieving adaptive collimation and quality optimization with ease of installation, low cost, and electromagnetic shielding.
Implementation Method 1
an X-axis piezoelectric ceramic module controller, a Y-axis piezoelectric ceramic module controller, a spot unit piezoelectric ceramic module controller, an X-axis piezoelectric ceramic module, a Y-axis piezoelectric ceramic module, and a spot unit piezoelectric ceramic array module
Data Source
AI summary
The present disclosure discloses an adaptive beam collimation and quality optimization system and method based on spot gridding, which belongs to the field of laser transmission. In the adaptive beam collimation and quality optimization system, a first optical reflector is installed at the front end of a three-module optical mirror frame, and an incident laser beam is reflected by a first optical reflector to reach a second optical reflector, and then the beam is output after being reflected by the second optical reflector again; an image collector collects a spot image on the second optical reflector and stores it to a computer; a computer processes the collected spot image, extracts a real-time relative position of the spot on the second optical reflector, compares the real-time relative position information with a pre-calibrated position to obtain the offset of the spot, correct the offset of the reflected beam, and feedback the intensity information of the adjacent small unit spot to a spot unit piezoelectric ceramic array module controller to correct the distortion of the reflected beam. The present disclosure can realize adaptive beam collimation and spot optimization without manual guarding and operation, and is applicable to the collimation and spot optimization of large-diameter beam transmission.