Optical Connector Ferrule With Adjustable Fiber End Positioning
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Solution Overview
Problem
Existing optical connector modules lack the ability to adjust the position of the end portion of optical transmission members after insertion, which affects the optical coupling efficiency.
Innovation Solution
An optical connector with a ferrule that includes an alignment part, a non-contact recess, and a lid for adjusting the position of optical transmission members, allowing precise alignment and fixation using an adhesive.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the optical fiber is inserted into the insertion hole and fixed with adhesive, then the optical fiber is securely fixed, but the position of the end portion cannot be adjusted after insertion
Solution Approach 1:
The insertion hole is divided into two functional regions: a lower recess portion that provides adhesive fixation, and an upper through-hole portion that allows post-fixation adjustment. This segmentation enables the optical fiber to be both securely fixed and adjustable, resolving the contradiction between fixation reliability and position adjustability.
2Reliability
If the pressing surface region is made larger, then the optical transmission members are more securely pressed and positioned, but the adjustment precision is reduced
Solution Approach 1:
The lid is designed with a localized pressing surface that concentrates force on a small region of the optical transmission member. This localized pressing action provides sufficient fixation reliability while maintaining high positioning precision, as the small contact area allows for precise control without the compromises of a larger pressing surface.
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 solution enables easy and precise adjustment of the end portion of optical transmission members, enhancing optical coupling efficiency and reducing the risk of damage during alignment.
Implementation Method 1
filling the recess with an adhesive; fixing the position of the end surface of the plurality of optical transmission members by curing the adhesive
Implementation Method 2
a lid for adjusting a position of the end surface of the plurality of the optical transmission members with respect to the first surface by pressing the plurality of optical transmission members by using a pressing surface of the lid
Implementation Method 3
the first surface being for allowing incidence of light emitted from the plurality of optical transmission members or allowing emission of light traveling inside the optical connector to an outside
Data Source
AI summary
An optical connector includes optical transmission members and a ferrule. The ferrule includes an alignment part for aligning the optical transmission members in a first direction; a first surface disposed to face the end surface of the aligned optical transmission members and for allowing incidence of light emitted from the optical transmission members; a second surface for allowing emission of the light incident on the first surface to the outside; a recess, disposed between the alignment part and the first surface and including a non-contact region corresponding to the end portion of the aligned optical transmission members, where the optical transmission members are disposed without contacting the non-contact region; and a lid for adjusting the position of the end surface of the optical transmission members with respect to the first surface by pressing the optical transmission members with a pressing surface contacting the optical transmission members.