Adjustable Optical Fiber Bundle for Variable Soldering Patterns
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Solution Overview
Problem
Conventional fiber-optic processing equipment faces challenges in achieving precise and adjustable irradiation patterns for soldering on printed circuit boards, leading to issues such as incomplete heating and increased production costs due to the need for multiple fiber-bundles with different configurations and complex control structures.
Innovation Solution
A fiber-bundle configuration with adjustable optical fibers, where the positions of multiple optical fibers can be precisely controlled using a mechanical adjuster, allowing for continuous variation of the irradiation pattern without the need for multiple fiber-bundles, enabling flexible and high-quality soldering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fiber-bundle with fixed configuration is used, then the structure is simple and production cost is low, but the irradiation pattern cannot be adjusted for different processing requirements
Solution Approach 1:
The patent applies the dynamics principle by making the optical fibers movable within the fiber-bundle structure. The adjuster mechanism allows optical fibers to be repositioned dynamically along the bundle length, enabling continuous adjustment of the irradiation pattern from spot to annular shapes without changing the physical fiber-bundle configuration. This resolves the contradiction by providing adaptability through dynamic repositioning rather than through multiple fixed configurations.
2Adaptability or versatility
If multiple fiber-bundles with different configurations are prepared, then various irradiation patterns can be achieved, but production cost increases and workability decreases
Solution Approach 1:
The patent implements universality by designing a single fiber-bundle structure that can perform multiple irradiation functions. By incorporating an adjuster mechanism that enables continuous repositioning of optical fibers, one universal fiber-bundle can replace multiple specialized fiber-bundles, achieving various irradiation patterns (spot, annular, continuous, discontinuous) without requiring separate configurations for each pattern.
3Manufacturing precision
If optical fibers are densely packed in the fiber-bundle, then the structure is compact, but the irradiation area cannot be adjusted finely for precision soldering
Solution Approach 1:
The patent replaces complex mechanical adjustment mechanisms with a simpler structure where optical fibers can be repositioned by relatively moving the entire fiber-bundle with respect to the processing objective. This substitution allows fine adjustment of the irradiation area through controlled movement of the fiber-bundle itself, achieving precision soldering requirements without requiring complex individual fiber adjustment mechanisms.
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 allows for a wide range of irradiation patterns to be achieved easily and precisely, improving soldering quality by ensuring accurate heat distribution without the need for multiple fiber-bundles or complex control structures, thus reducing production costs and enhancing workability.
Implementation Method 1
a fiber-bundle (20) having a plurality of optical fibers (2) each receives light beam in one end and emits the light beam from the other end
Implementation Method 2
an adjuster (18) to adjust positions of a plurality of the optical fibers (2)
Implementation Method 3
a condenser lens 106 as shown in FIG. 6. The equipment allows a light beam emitted from the LD element to enter into optical fiber 113 to be guided to a predetermined position to carry out for instance soldering component parts on a printed circuit board by irradiating the light beam from optical fiber 113 to be focused on a soldering area by condenser lens 106
Implementation Method 4
a light source such as for instance a semiconductor laser or the like
Data Source
AI summary
A fiber-bundle disclosed has: a bundle of a plurality of optical fibers each receives a light beam in one end and emits the light beam from the other end; and an adjuster to adjust positions of a plurality of optical fibers. The configuration can realize a wide variety of irradiation patterns easily and freely.