Fiber Ferrule Chamfer Imaging With Orthogonal Microscope Alignment
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Solution Overview
Problem
Existing microscopes struggle to accurately image and measure the chamfer angle of fiber optic ferrules due to their coaxial alignment with the optical axis, which prevents imaging of the chamfer and inspection for defects.
Innovation Solution
The microscope is configured to position the mechanical axis of the fiber optic ferrule orthogonal to the optical axis, using a reflective interior surface to enhance image contrast and enable imaging of the ferrule silhouette and chamfer region, allowing for measurements such as chamfer angle and length to be determined.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the ferrule is positioned coaxially with the optical axis for standard microscope operation, then the endface can be imaged clearly, but the chamfer region cannot be imaged and measured
Solution Approach 1:
The microscope system dynamically switches between two operational configurations: a first configuration where the ferrule mechanical axis is orthogonal to the optical axis for chamfer imaging, and a second configuration where the ferrule mechanical axis is coaxial with the optical axis for endface imaging. This dynamic reconfiguration allows the same device to perform multiple measurement functions without requiring permanently separate equipment.
Solution Approach 2:
The connector adapter is segmented into a first portion and a second portion, where the first portion positions the ferrule orthogonally for chamfer imaging and the second portion positions it coaxially for endface imaging. This segmentation allows independent optimization of each positioning function within a single integrated adapter assembly.
2Measurement precision
If the ferrule is positioned orthogonally to the optical axis to image the chamfer, then chamfer measurements can be obtained, but the imaging contrast is insufficient
Solution Approach 1:
A reflective interior surface is introduced as an intermediary element between the light source and the ferrule chamfer region. This reflective surface redirects light onto the chamfer area, enhancing the illumination and image contrast for orthogonal positioning measurements without interfering with the primary optical path.
3Adaptability or versatility
If a single microscope configuration is used, then the device structure remains simple, but both chamfer and endface cannot be imaged effectively
Solution Approach 1:
The connector adapter is designed with multi-functionality, incorporating both a first portion for orthogonal ferrule positioning (chamfer imaging) and a second portion for coaxial ferrule positioning (endface imaging). This universal adapter allows a single microscope to perform both chamfer measurement and endface inspection functions that would otherwise require separate specialized equipment.
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
Enables precise imaging and measurement of the chamfer angle and length of fiber optic ferrules, facilitating proper configuration of mating adapters and inspection for defects.
Implementation Method 1
a light source configured to emit light onto a ferrule of a connector of a fiber optic cable
Implementation Method 2
using a reflective interior surface to enhance image contrast and enable imaging of the ferrule silhouette
Data Source
AI summary
In some implementations, an optical component of a microscope may capture an image of a profile of a ferrule and a connector of an optical fiber based on the ferrule being received by a first opening of a first connector adapter of the microscope. A mechanical axis of the ferrule may be orthogonal to an optical path from a camera of the microscope to the ferrule when the ferrule is received by the first opening. One or more processors associated with the microscope may process the image to determine a measurement of a chamfer of the ferrule. The optical component may capture an image of an endface of the ferrule based on the ferrule being received by a second opening of a second connector adapter. The mechanical axis of the ferrule may be axially aligned with the optical path when the ferrule is received by the second opening.