Rotating Beam Splitter for Laser Focus Interval Adjustment
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Solution Overview
Problem
Conventional laser processing apparatuses have complex mechanisms for splitting and adjusting laser beam intervals, which hinder productivity improvements.
Innovation Solution
A laser processing apparatus with a splitter element that rotates about an optical axis to adjust the interval between focusing points of split laser beams, using a simplified rotation mechanism to align and focus multiple laser beams on a workpiece.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional mechanism for splitting and adjusting laser beam intervals is used, then the laser processing can be performed, but the device complexity increases and productivity is reduced
Solution Approach 1:
The laser beam is segmented into multiple beams using a beam splitter, allowing simultaneous processing of multiple processing lines. This segmentation enables parallel processing operations, improving productivity without requiring multiple separate laser sources.
Solution Approach 2:
The invention introduces a rotation mechanism that rotates the beam splitter around an optical axis, adding a rotational dimension to the beam adjustment system. This allows interval adjustment between focusing points through rotation rather than requiring complex linear translation mechanisms, simplifying the overall device complexity.
2Manufacturing precision
If a complicated mechanism for adjusting intervals between focusing points is used, then the laser beam focusing can be adjusted, but the device complexity increases
Solution Approach 1:
The invention transforms the interval adjustment problem from a linear translation task into a rotational task. By rotating the beam splitter around the optical axis, the focusing point intervals are adjusted through angular displacement rather than linear displacement, significantly simplifying the mechanism while maintaining precision.
Solution Approach 2:
The invention replaces complex mechanical translation mechanisms with a simpler rotation mechanism. The rotation of the beam splitter around the optical axis provides a more straightforward and reliable method for adjusting focusing point intervals compared to traditional linear adjustment mechanisms.
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 efficient and simplified adjustment of laser beam focusing point intervals, enhancing productivity by simplifying the mechanism and improving processing efficiency.
Implementation Method 1
a splitter element configured to split the laser beam generated by the oscillator into a first laser beam and a second laser beam
Implementation Method 2
a focusing unit including a focusing lens configured to focus the first laser beam split by the splitter element onto the workpiece held by the holding unit and to focus the second laser beam split by the splitter element onto the workpiece held by the holding unit
Data Source
AI summary
A laser processing apparatus includes: a holding unit configured to hold a workpiece; an oscillator configured to generate a laser beam; a splitter element configured to split the laser beam generated by the oscillator into a first laser beam and a second laser beam; a rotation mechanism configured to rotate the splitter element about an axis passing through a center of the splitter element; and a focusing unit including a focusing lens configured to focus the first laser beam split by the splitter element onto the workpiece held by the holding unit and to focus the second laser beam split by the splitter element onto the workpiece held by the holding unit.