Laser Head Imaging Layout for a Wider Machining View
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Solution Overview
Problem
Existing laser processing devices have limitations in achieving a wide angle of view for the image-capturing unit, which affects the usability and effectiveness of the image-capturing functionality.
Innovation Solution
The laser processing device incorporates a scanner, an emission window, and an image-capturing unit housed within a single structure. The image-capturing unit captures images through the emission window, with its image-capturing axis intersecting the emission window's perpendicular axis at a predetermined distance, allowing for a wide angle of view and improved usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the image-capturing unit is arranged with its optical axis orthogonal to the processing reference plane, then the structure is simple, but the angle of view is limited
Solution Approach 1:
The patent applies asymmetry by positioning the image-capturing unit's optical axis at an inclined angle relative to the processing reference plane, rather than orthogonally. Specifically, the optical axis is arranged to intersect the processing reference plane at an angle between 30° and 60°, which asymmetrically changes the viewing geometry to expand the angle of view while maintaining structural simplicity
Solution Approach 2:
The patent utilizes dimensionality change by adjusting the vertical position (distance) of the image-capturing unit from the processing reference plane. By optimizing this distance, the system expands the angle of view in the vertical dimension while keeping the horizontal structure simple, effectively using spatial repositioning to resolve the contradiction
2Adaptability or versatility
If the image-capturing unit is positioned closer to the processing subject, then the angle of view increases, but the device structure becomes more complex
Solution Approach 1:
The patent merges the image-capturing unit with the housing structure by integrating it into the side surface of the housing that faces the processing subject. This combination allows the image-capturing unit to be positioned optimally for a wide angle of view without requiring separate mounting structures, thus expanding the angle of view while maintaining structural simplicity
Solution Approach 2:
The housing structure serves multiple functions: it accommodates the scanner, provides structural support, and integrates the image-capturing unit. By making the housing multi-functional, the patent avoids adding extra structural elements, thereby achieving a wide angle of view through strategic integration rather than through increased structural 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
This configuration enables the laser processing device to achieve a wide angle of view with a simple structure, enhancing the usability and effectiveness of the image-capturing functionality.
Implementation Method 1
an emission window that transmits the laser beam directed toward the processing subject by the scanner
Implementation Method 2
an image-capturing unit accommodated in the housing, the image-capturing unit capturing an image of the processing subject through the emission window
Data Source
AI summary
This laser processing device includes an imaging portion accommodated in a housing of a head unit that accommodates a scanning portion. The imaging portion acquires a target object image including at least a portion of a machining region, by imaging a machining target through protective glass. The imaging portion is disposed in such a way that an imaging axis for acquiring the target object image intersects a vertical axis of the protective glass in a position a prescribed first distance from the protective glass.