Laser Line Generator Lens Mount for Precise Angle Adjustment
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Solution Overview
Problem
Existing laser line generators face complications in adjusting the angle of the conversion lens, with mechanisms requiring complex operations and potentially allowing irregular lens movement due to gaps, leading to improper adjustments.
Innovation Solution
A laser line generator design incorporating a laser beam source, conversion lens, lens holder, rotation axis, rotation support, biasing portion, and gap adjuster, which allows for easy adjustment of the lens angle by modifying the gap dimension between the lens holder and rotation support, enabling precise control of the conversion lens's position and attitude relative to the optical axis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a mechanism using two adjustment screws is used to adjust lens angle, then the lens angle can be adjusted, but the adjustment operation becomes complicated
Solution Approach 1:
The patent extracts the angle adjustment function from the complex two-screw mechanism and implements it through a simpler hinge shaft and screw mechanism. The hinge shaft is taken out as a separate rotational support element, allowing the lens holder to rotate independently while the screw provides controlled positioning, thereby simplifying the overall adjustment operation.
Solution Approach 2:
The patent introduces dynamic adjustability through the hinge shaft mechanism, which allows the lens holder to rotate freely during adjustment and then be locked at the desired angle. This dynamic capability replaces the static, complex two-screw system with a more flexible and easier-to-operate mechanism that combines rotational freedom with positional control.
2Ease of operation
If a mechanism using hinge shaft and screw is used to adjust lens angle, then the adjustment operation is simplified, but the lens may move irregularly due to gap causing improper adjustment
Solution Approach 1:
The patent applies beforehand cushioning by introducing a biasing portion (spring) that pre-compresses the gap between the lens holder and rotation support. This spring provides continuous contact force that eliminates play and irregular movement while maintaining the simplicity of the hinge shaft and screw adjustment mechanism, ensuring reliable and precise lens positioning.
Solution Approach 2:
The biasing portion acts as an intermediary element between the lens holder and rotation support, mediating the contact and eliminating direct gap-related irregularities. The spring provides a controlled elastic force that ensures stable contact without introducing the complexity of additional adjustment mechanisms, thereby maintaining reliability while preserving ease of operation.
3Ease of operation
If gap is provided for smooth rotation of hinge shaft, then rotation is facilitated, but lens movement along roll direction occurs causing irregular adjustment
Solution Approach 1:
The patent uses the biasing portion (spring) to beforehand cushion the rotational movement by maintaining constant contact pressure between the lens holder and rotation support. This eliminates the harmful effects of the gap while preserving smooth rotation, as the spring force ensures continuous engagement without binding, thereby achieving both ease of rotation and adjustment precision.
Solution Approach 2:
The patent changes the physical state of the gap from a static void to a dynamically controlled space through the spring's elastic deformation. The spring compresses and extends during rotation, transforming the gap into a controlled elastic element that facilitates smooth rotation while preventing irregular lens movement, thus resolving the contradiction between rotation smoothness and adjustment precision.
Data Source
AI summary
One aspect of the present disclosure provides a laser line generator that includes a laser beam source, a conversion lens, a lens holder, a rotation axis, a rotation support, a biasing portion, and a gap adjuster. The rotation support abuts the rotation axis and supports the lens holder such that the lens holder rotates about the rotation axis. The biasing portion brings the lens holder and the rotation support closer to each other. The gap adjuster adjusts a gap dimension between the lens holder and the rotation support that are brought closer to each other by the biasing portion.