Adjustable Mirror Mount Design for Low Cross-Coupling Laser Steering
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Solution Overview
Problem
Existing optical systems, such as flow cytometry systems, face sensitivity degradation and alignment challenges due to misaligned laser beams, which are exacerbated by large and cumbersome beam steering systems that introduce axis cross-coupling and complex configuration issues.
Innovation Solution
The development of an adjustable mirror mount with a compact, T- or L-shaped design that allows precise rotation and adjustment of mirrors in two axes, minimizing cross-coupling and enabling accurate alignment of laser beams in tight spaces, using a combination of vertical and horizontal adjustment arms with fine pitch screws and biasing springs to maintain precise beam steering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional beam steering systems are used to align laser beams, then alignment capability is provided, but axis cross-coupling occurs and system complexity increases
Solution Approach 1:
The beam steering system is segmented into independent rotational stages, with each stage controlling rotation about a specific axis. The mirror mount includes a first rotational stage for rotating the mirror about a first axis and a second rotational stage for rotating about a second axis, allowing independent adjustment without cross-coupling effects.
Solution Approach 2:
A precision rotation stage serves as an intermediary mechanism between the mirror and the adjustment screws. This intermediary provides a controlled rotational interface that eliminates direct mechanical coupling between adjustment axes, thereby preventing cross-coupling while maintaining alignment precision.
2Length of moving object
If compact mirror mount design is implemented, then spatial displacement is reduced, but adjustment precision may be compromised
Solution Approach 1:
The mirror mount employs dynamic adjustment mechanisms with fine-pitch screws that provide precise control within a compact form factor. The first and second adjustment screws with fine threads enable high-resolution angular adjustment, maintaining beam alignment precision while minimizing the spatial footprint of the mirror mount.
Solution Approach 2:
The design changes the pitch parameter of the adjustment screws to a fine value, allowing large rotational adjustments to be achieved through small linear displacements. This enables precise beam alignment within a compact space by transforming the relationship between screw rotation and mirror angle.
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 solution provides a compact, high-precision beam steering system that reduces axis cross-coupling, allowing for accurate alignment of multiple laser beams in flow cytometry systems, enhancing sensitivity and ease of use by minimizing spatial displacement and beam dispersion.
Implementation Method 1
a spring may connect the cleat with the horizontal adjustment arm and apply a biasing force to the horizontal adjustment arm
Implementation Method 2
a spring may connect the vertical adjustment arm with the horizontal adjustment arm and apply a biasing force to the vertical adjustment arm
Implementation Method 3
an adjustable mirror mount for rotating a reflection surface of a mirror
Data Source
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AI summary
Disclosed is an adjustable mirror mount that is capable of adjusting a mirror in two axes with a high degree of precision and low cross-coupling. Long horizontal and vertical adjustment arms are used to allow the precision adjustment about both a horizontal axis and a vertical axis.