Integrated Laser Beam Shaping Optical System
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Solution Overview
Problem
Existing optical systems for beam shaping of laser beams are sensitive to tilting of reflection surfaces and require separate adjustment of optical elements, increasing the adjustment effort and limiting adaptability to measurement tasks.
Innovation Solution
Integration of additional optical elements into the base body or cutouts of the optical system, with carefully matched reflection surfaces to ensure 90° deflection of the laser beam, reducing sensitivity to tilting and allowing for a single optical carrier, and the use of diffractive optical elements for flexible beam shaping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate optical elements are used for beam shaping, then the optical system can be adjusted to different measurement tasks, but the adjustment effort increases and the system becomes more complex
Solution Approach 1:
The patent combines multiple optical elements (collimation lens, reflection surfaces, beam shaping elements) into a single integrated optical component. This merging eliminates the need for separate adjustment of multiple elements while maintaining the ability to adapt to different measurement tasks through the integrated design, thereby reducing adjustment effort and system complexity.
Solution Approach 2:
The integrated optical element performs multiple functions simultaneously: collimation, reflection, and beam shaping. This multi-functionality allows the single component to adapt to various measurement tasks without requiring separate optical elements, thus maintaining versatility while reducing the number of components and adjustment steps.
2Reliability
If multiple separate optical elements are used, then beam shaping can be achieved, but the sensitivity to tilting of reflection surfaces increases
Solution Approach 1:
By merging the collimation lens and reflection surfaces into a single integrated optical element, the patent eliminates interfaces between separate elements that would be sensitive to misalignment and tilting. The integrated design ensures fixed geometric relationships between optical surfaces, reducing sensitivity to tilting while maintaining beam shaping capability.
3Ease of operation
If optical elements are integrated into a single carrier, then adjustment effort is reduced, but the manufacturing precision requirements increase
Solution Approach 1:
The patent performs preliminary action by pre-integrating all optical elements during the manufacturing process with precisely matched reflection surfaces and angles. This preliminary integration ensures that the optical paths are correctly established before deployment, eliminating the need for field adjustment while the manufacturing precision is controlled through systematic design of the integrated structure.
4Measurement precision
If the laser beam intensity is adapted to measurement tasks, then the measurement precision improves, but the optical system becomes more complex
Solution Approach 1:
The patent achieves intensity adaptation by changing the geometric parameters of the integrated optical element, specifically the angles of the reflection surfaces and the configuration of beam shaping surfaces. By varying these geometric parameters, the laser beam intensity can be adapted to different measurement tasks without adding complex active control mechanisms, thus maintaining system simplicity while improving measurement precision.
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 reduces adjustment effort, enhances adaptability to measurement tasks, and allows for the production of continuous or punctiform laser markings with improved intensity adaptation, making the optical system more robust and versatile.
Implementation Method 1
the angle between the first reflection surface and the base of the first cutout and the angle between the second reflection surface and the base of the second cutout are matched to one another in such a way that an incident laser beam is deflected by 90°
Implementation Method 2
the use of diffractive optical elements for flexible beam shaping
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
Optical system (2) for beam shaping of a laser beam (6) comprising an optical element which is formed at least partially as a base body (7) with a base surface (10), a top surface (11) and a lateral surface (12) adjoining the base and top surface (10, 11), wherein the lateral surface (12) is formed at least partially as a transmission surface for the laser beam (6) and the base body (7) comprises a first cutout (8) with a base surface (14) which is arranged in the top surface (11) of the base body (7) and a lateral surface (15) which is formed at least partially as a first reflection surface for the laser beam and generates an at least partially annular laser beam (22).The base body (7) comprises a second cutout (9) with a base surface (17) arranged in the base surface (10) of the base body (7), a top surface (18) which is designed at least partially as a transmission surface for the laser beam, and a lateral surface (19) adjoining the base and top surfaces (17, 18) which is designed at least partially as a second reflection surface for the at least partially annular laser beam (22).