Spiral dynamic reciprocating scanning optical system

Abstract

The invention relates to a spiral dynamic reciprocating scanning optical system which comprises a galvanometer scanning device and a workpiece (5) to be scanned, the galvanometer scanning device sequentially comprises a deflection prism (2), a dynamic focus lens (3) and a swing galvanometer (4) according to a light path, one side of the deflection prism (2) is inclined to an optical axis, the other side of the deflection prism (2) is perpendicular to the optical axis, the deflection prism (2) continuously rotates by 360 degrees around the optical axis of the deflection prism (2); the dynamic focus lens (3) does reciprocating rectilinear motion along the X-axis direction; the swinging galvanometer (4) swings back and forth in an X-Y plane around the central axis of the swinging galvanometer (4); the workpiece (5) does reciprocating rectilinear motion in the Z-axis direction. The optical system outputs the scanning laser beam with the motion trail in a spatial spiral shape, can be suitable for the workpiece with the uneven surface to be scanned, can avoid the problem of missing scanning, and remarkably improves the scanning quality and the machining efficiency.

Description

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AI Technical Summary

Benefits of technology

This patented technology allows for better control over how much light energy falls on an area during a process called scanning. It uses special shapes that are made up by curved lines instead of regular circles like those used previously. By doing this, it prevents leaks from being caused due to imperfections such as inclined surfaces or slow movement at high speeds. Additionally, ZigZags scans may also help reduce glare problems while moving around smoothly without interfering too well with other processes. Overall, these technical improvements enhance the accuracy and effectiveness of scanners' performance.

Problems solved by technology

This patented technical problem addressed in the patents relates to improving the accuracy and efficiency of lasers used during manufacturing processes such as machining operations where irregularities can occur due to factors like vibrations caused by other equipment or changes over time (such as temperature).

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