Line Laser Beam Expander With Coaxial Powell Lens Alignment
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Solution Overview
Problem
Existing laser beam fixing devices face challenges in aligning laser beams with Powell lenses, leading to complex alignment processes and potential deviations during use.
Innovation Solution
A fixing device with a laser beam expander featuring emitter and Powell lens embedding grooves, a prism fixing sleeve, and a steering fixing table, which enables unified fixing of the laser emitter and Powell lens, simplifying alignment and preventing deviations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a fixing device with multiple jackscrews and adjusting holes is used to align the laser beam with the Powell lens, then the alignment capability is improved, but the device complexity and ease of operation deteriorate
Solution Approach 1:
The patent merges the laser emitter and Powell lens into a unified integrated structure where the Powell lens is directly mounted on the laser emitter housing. This integration eliminates the need for separate adjusting holes and multiple jackscrews, reducing device complexity while maintaining alignment precision through the built-in coaxial positioning features.
Solution Approach 2:
The patent segments the fixing device into distinct functional modules: the laser emitter assembly with its housing, the Powell lens mounting structure with positioning holes, and the fastening mechanism. This modular segmentation allows for simplified assembly and adjustment while maintaining precise alignment through dedicated positioning features in each module.
2Manufacturing precision
If multiple jackscrews are used for adjustment, then the alignment precision is improved, but the ease of operation deteriorates
Solution Approach 1:
The patent combines multiple adjustment functions into a simplified integrated structure where the Powell lens housing directly provides positioning holes for the laser emitter. This eliminates the need for complex multi-jackscrew adjustment mechanisms, making the device easier to operate while maintaining precise alignment through the built-in coaxial positioning features.
3Adaptability or versatility
If the laser emitter and Powell lens are separately fixed, then the adaptability is improved, but the reliability deteriorates due to potential deviations
Solution Approach 1:
The patent merges the laser emitter and Powell lens into a unified integrated structure where the Powell lens is directly mounted on the laser emitter housing. This integration ensures that both components move together as a single unit, eliminating relative positional deviations and improving reliability, while the modular design still allows for adaptability in different application scenarios.
4Manufacturing precision
If a complex adjustment mechanism is used, then the alignment precision is improved, but the productivity deteriorates due to time-consuming alignment process
Solution Approach 1:
The patent incorporates preliminary action by pre-designing the Powell lens housing with built-in positioning holes that are coaxially aligned with the laser emitter output. This preliminary structural arrangement eliminates the need for time-consuming iterative adjustments during assembly, allowing for rapid alignment while maintaining high precision through the pre-established geometric relationships.
Data Source
AI summary
Provided is a fixing device for line laser output. The device includes a laser beam expander having: a laser via hole defined in an axial direction thereof; an emitter embedding groove disposed at a laser entry end of the laser via hole, the emitter embedding groove having a peripheral wall coaxial with a peripheral wall of the laser via hole, and a bottom wall perpendicular to the peripheral wall of the laser via hole; and a Powell lens embedding groove disposed at a laser exit end of the laser via hole, the Powell lens embedding groove having a peripheral wall coaxial with the peripheral wall of the laser via hole, and a bottom wall perpendicular to the peripheral wall of the laser via hole.