Kaleidoscopic Mirror Vision Platform for Single-Motion 3D Scanning
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Solution Overview
Problem
Existing robot vision platforms for projecting sweeping laser beams are limited by high cost, mechanical complexity, energy consumption, and physical size due to the use of multiple moving structures.
Innovation Solution
A kaleidoscopic geometric vision platform (KGVP) that uses a spindle mirror mechanism with reflective facets to project laser beams, allowing a single moving structure to emit diverse patterns, reducing mechanical complexity and energy consumption while maintaining precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple moving structures are used to project diverse laser beam patterns, then the diversity of laser beam emission apertures and directions is improved, but the device complexity and mechanical reliability deteriorate
Solution Approach 1:
The patent merges multiple moving structures into a single moving structure (the polygon mirror). Instead of using multiple independent mirrors or projectors, a single polygon mirror with multiple reflective facets combines the functions of multiple moving components, reducing mechanical complexity while maintaining the ability to project diverse laser beam patterns in different directions
Solution Approach 2:
The single moving structure (polygon mirror) performs multiple functions by reflecting laser beams from a single emission aperture into multiple different directions. Each facet of the polygon mirror enables the system to project laser beams in different directions, making the single component universal and multi-functional, replacing what would traditionally require multiple specialized components
2Measurement precision
If multiple moving structures are used to emit diverse laser beam patterns, then the precision of three-dimensional metrology is improved, but the energy consumption and mechanical reliability worsen
Solution Approach 1:
The patent combines multiple moving structures into one polygon mirror that rotates on a single axis. This single rotating component replaces what would traditionally require multiple independent moving structures, each consuming energy. The unified structure reduces total energy consumption while maintaining the precision needed for three-dimensional metrology through its ability to project beams in multiple directions
3Adaptability or versatility
If multiple moving structures are used to project laser beams, then the diversity of directions is improved, but the physical size and device complexity worsen
Solution Approach 1:
The patent merges multiple moving structures into a single polygon mirror component. Instead of requiring space for multiple separate mirrors or projectors, the single polygon mirror consolidates all directional control functions into one compact component, significantly reducing the physical volume occupied by moving parts while maintaining the ability to project beams in diverse directions
Solution Approach 2:
The patent uses a rotating polygon mirror that introduces temporal dimension to spatial beam direction control. By rotating the mirror, a single static component can dynamically project beams in multiple directions that would traditionally require multiple spatially distributed components, effectively using time-based rotation to achieve what would otherwise require additional spatial volume
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
The KGVP achieves increased precision, reduced mechanical complexity, and improved energy efficiency compared to traditional systems, enabling precise three-dimensional metrology and complex surface scanning with a single moving mechanism.
Implementation Method 1
The pattern is swept in a diversity of directions by a plurality of reflective facets
Data Source
AI summary
A Kaleidoscopic Geometric Vision Platform (KGVP) that transforms three-dimensional (3D) machine vision through an optical system that creates multiple virtual laser projectors from a single moving component. A spindle mirror mechanism (SMM) rotates a reflective surface to sweep collimated laser beams in circular patterns. These beams strike a series of kaleidoscopic mirror facets (KMFs) arranged concentrically around the SMM in a concave configuration. Each KMF redirects the rotating beam, creating a virtual projector with a distinct origin point and sweep direction. As the SMM completes one rotation, it generates N distinct laser trajectories (where N equals the number of KMFs), each sweeping from a different virtual origin point. Event-based cameras/sensors positioned strategically around the KMFs detect laser light reflected from object surfaces with microsecond precision. The KGVP triangulates 3D surface coordinates by determining correspondence between detected light and specific virtual projectors based on precise timing information.