Beam-Shaping Laser Optics for Adjustable Laser Point Positioning
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Solution Overview
Problem
Existing beam-forming laser optics cannot adjust the position of multiple laser points generated in a machining plane, limiting their adaptability to different application scenarios.
Innovation Solution
The use of a lens field with multiple cylinder lenses arranged to shape the laser beam in one direction, combined with a second lens that shapes the beam in a perpendicular direction, allowing for the generation of laser points of desired shape and position, with the ability to displace the optical assembly to change the position and power distribution of the laser points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a lens field with multiple cylinder lenses is used to shape the laser beam, then the beam shaping geometry is maintained, but the position of the laser points cannot be adjusted
Solution Approach 1:
The optical system is divided into two independent parts: a lens field with multiple cylinder lenses for beam shaping, and a separate movable lens for position adjustment. This segmentation allows each component to perform its specific function independently - the lens field maintains stable beam geometry while the movable lens adjusts laser point positions without interfering with the shaping function.
Solution Approach 2:
The system combines static and dynamic elements: the lens field remains stationary to preserve stable beam shaping geometry, while a separate lens is made movable along the optical axis to dynamically adjust the position of laser points. This dynamic element enables adaptability without compromising the stability of the beam shaping function.
2Quantity of substance
If the optical assembly is displaced to change power distribution, then power distribution between laser points changes, but beam shaping geometry changes in the first direction
Solution Approach 1:
The system separates the functions of power distribution adjustment and beam shaping into different components. The lens field with multiple cylinder lenses is responsible for maintaining stable beam shaping geometry, while a separate movable lens handles power distribution adjustment. This segmentation ensures that adjusting power distribution does not affect beam shaping geometry.
Solution Approach 2:
The movable lens acts as an intermediary element between the laser source and the lens field. By positioning this lens at different locations along the optical axis, the system can adjust power distribution to multiple laser points without the displacement affecting the beam shaping function performed by the lens field, thus maintaining geometric stability.
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
Enables the generation of laser points with adjustable position and power distribution, enhancing the adaptability of laser systems for various machining applications, such as welding and soldering, by maintaining the beam shaping geometry in one direction while allowing displacement for position and power changes in the other direction.
Implementation Method 1
a lens field which comprises a plurality of first lenses which are configured and arranged next to one another in a manner such that they effect a beam shaping in a first direction normal to an optical axis
Implementation Method 2
a lens is arranged in the provided beam path next to this lens field, wherein this second lens is an second individual lens which effects a beam shaping in a second direction normal to the mentioned optical axis as well as normal to the described first direction
Data Source
AI summary
Beam-shaping laser optics are provided with a lens field (28) which comprises a plurality of first lenses (32) which are configured and arranged next to one another such that the plurality of first lenses (32) effect a beam shaping in a first direction (y) normal to an optical axis (x), as well as with an individual second lens (30) which is configured such that the individual second lens (30) effects a beam shaping in a second direction (z) normal to the optical axis as well (x) as well as the first direction (y). The lens field (28) and the second lens (30) are arranged in a beam path (12) one after the other along the optical axis (x). A laser system is provided with such beam optics.