Optical Fiber Connector Protective Coating for End Face Cleaning
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Solution Overview
Problem
The existing optical fiber connectors face challenges in reducing the effort and cost associated with cleaning and polishing the end faces of fiber ferrules, as dirt and dust can cause signal losses and damage during transportation and handling.
Innovation Solution
A protective coating with a glutinous surface is applied to the fiber ferrule end face, made from a cast or elastic material like rubber or silicone, which can be molded over the ferrule to absorb dirt and dust, facilitating easy cleaning and dismounting, and providing impact protection without adhering to the ferrule.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the end face of the fiber ferrule is left exposed, then the connector can be easily assembled, but the end face is vulnerable to pollution and damage during transportation and handling
Solution Approach 1:
A protective coating is applied in advance to the end face of the fiber ferrule before assembly and transportation. This preliminary protective action prevents pollution and damage without interfering with the subsequent assembly process, as the coating is designed to be removed easily when needed.
Solution Approach 2:
The protective coating functions as a thin film layer that covers the end face of the fiber ferrule. This flexible protective layer can be applied as a coating, paint, or adhesive layer that provides protection during handling while allowing easy removal when the connector is ready for use.
2Reliability
If cleaning and polishing of the end face is performed frequently, then the end face remains clean and undamaged, but time and manufacturing costs increase
Solution Approach 1:
The protective coating is applied in advance to prevent pollution and damage before they occur. This preliminary protective measure eliminates the need for frequent cleaning and polishing operations, saving time and reducing manufacturing costs while maintaining end face reliability.
Solution Approach 2:
The protective coating converts the potential harm of handling and transportation into a beneficial protective layer. By allowing controlled application of the coating and its easy removal, the process transforms what would be harmful exposure into a protected state, eliminating the need for corrective cleaning operations.
3Object-affected harmful factors
If a protective coating is applied to the end face, then pollution and damage are prevented, but the coating may adhere to the ferrule and complicate removal
Solution Approach 1:
The protective coating is applied with specific local properties: it provides strong protection where needed on the end face, but is formulated with specific adhesive characteristics that allow easy removal. The coating's quality is optimized locally to balance protection and removability, using materials like rubber, silicone, or specially formulated paints that meet both requirements.
Solution Approach 2:
The coating material's adhesive parameters are carefully selected and controlled. The coating has sufficient adhesion to remain attached during handling and transportation, but its adhesive strength is within a range that allows easy removal when needed. This parameter optimization ensures both protection and ease of operation.
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 protective coating reduces the need for frequent cleaning and polishing, minimizes signal loss, and lowers manufacturing costs by allowing for mass production and easy integration with standard connector configurations, while ensuring precise alignment and protection of the fiber ferrule.
Implementation Method 1
The protective coating has a glutinous surface, at least where its face abuts the end face of the fiber ferrule
Data Source
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AI summary
The present invention relates to an optical fiber connector (1) for connecting a fiber optic cable, the optical fiber connector (1) comprising a housing (2) and a fiber ferrule (6) for receiving an optical fiber, the fiber ferrule (6) having an end face (8), the end face (8) extending outwards from the housing (2). Furthermore, the invention relates to a method of producing an optical fiber connector (1) for connecting a fiber optic cable, comprising a housing (2), and a fiber ferrule (6) having an end face (8), the end face (8) extending outwards from the housing (2). To reduce the effort of cleaning and polishing the end faces of optical fiber connectors (1), in particular of fiber ferrule end faces (8), the optical fiber connector (1) is provided with a protective coating (7), said protective coating (7) encasing the end face (8) of the fiber ferrule (6).