Transmissive Optical Element Mount for Wear-Free Precision Alignment
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Solution Overview
Problem
Laser processing devices face challenges with holders for transmissive optical elements, as existing adjustment mechanisms are prone to wear and provide non-reproducible, imprecise adjustments, often relying on expensive linear guides or susceptible to material abrasion.
Innovation Solution
A holder with adjusting elements offset at 80° to 100°, featuring a guide pin and pivotable, adjustable components that allow precise and reproducible positioning of the transmissive optical element within a frame, eliminating the need for linear guides and minimizing wear by enabling quasi-linear changes in position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If linear guides are used for adjustment, then adjustment precision is improved, but cost increases and wear susceptibility worsens
Solution Approach 1:
The patent removes the linear guide component from the adjustment mechanism entirely. Instead of using traditional linear guides, the invention employs a mount with adjusting elements that directly engage with the frame through pivoting and length adjustment, eliminating the harmful linear guide component that causes wear and cost issues while maintaining adjustment precision.
Solution Approach 2:
The patent replaces the mechanical linear guide system with a different mechanical arrangement consisting of a mount, adjusting elements, and guide pins that work together through pivoting and length adjustment. This substitution eliminates the wear-prone linear guide while achieving the same positioning function through an alternative mechanical mechanism.
2Ease of operation
If conventional adjustment mechanisms are used, then adjustment capability is provided, but adjustment reproducibility worsens and precision deteriorates
Solution Approach 1:
The adjusting elements are pre-configured with specific geometric relationships (offset angles of 80° to 100°) and engagement features (guide pins positioned centrally between adjusting elements) that establish reproducible positioning before adjustment begins. This preliminary geometric configuration ensures that each adjustment position is precisely defined and reproducible.
Solution Approach 2:
The patent changes the geometric parameters of the adjustment mechanism by specifying offset angles of 80° to 100° between adjusting elements and positioning guide pins centrally between them. These parameter changes create a geometric constraint system that enables precise and reproducible adjustment positions without relying on conventional mechanisms.
3Ease of operation
If movable components are used in adjustment mechanisms, then adjustment functionality is achieved, but material abrasion worsens
Solution Approach 1:
The patent eliminates the harmful sliding contact between moving components by removing the linear guide and replacing it with a pivoting mechanism. The adjusting elements pivot rather than slide, and the guide pin engages with mounting holes, eliminating the continuous sliding friction that causes material abrasion in conventional adjustment mechanisms.
Solution Approach 2:
Instead of using sliding motion for adjustment, the patent inverts the approach by using pivoting motion. The adjusting elements rotate on pivot points rather than sliding along guides, fundamentally changing the type of motion from translational sliding to rotational pivoting, thereby eliminating the abrasion caused by sliding contact.
Data Source
AI summary
A holder for a transmissive optical element is specified, having a frame and a mount for the transmissive optical element. The mount is mounted within the frame with two adjusting elements and with a guide pin arranged between the adjusting elements and its distance from the frame can be adjusted. The adjusting elements are each mounted in the frame so that they can pivot and are adjustable in their respective lengths independently of one another. The mount-side ends of the adjusting elements can each be pivoted in the mount and are attached so that they can be displaced in the longitudinal direction of the respective adjusting element. The frame-side end of the guide pin is fixed to the frame, and the frame-side end of the guide pin is pivotably mounted in the frame in the X and Y directions and slidable in the longitudinal direction of the guide pin. A method for adjusting the position of a transmissive optical element is also specified.