Optical Fiber Coiling Guide for Uniform Illumination
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Solution Overview
Problem
Conventional optical methods for measuring three-dimensional profiles of semiconductor fine patterns face limitations due to non-uniformity of light transmission through multi-mode optical fibers, which is exacerbated by the variability in coiling tasks performed by workers.
Innovation Solution
A light source uniformity adjusting device and method that includes a base plate with holes, fixing portions, and a post portion to route the optical fiber into curved shapes, ensuring consistent light transmission by allowing precise coiling of the optical fiber.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If manual coiling of multi-mode optical fiber is performed to achieve uniform light transmission, then light uniformity is improved, but task quality varies depending on worker skill-level and task time variation increases
Solution Approach 1:
The optical fiber routing structure enables the optical fiber to self-coil uniformly by passing through guide holes and being fixed at predetermined positions, eliminating the need for manual coiling operations. The structure guides the fiber to form consistent loops automatically, ensuring uniform light transmission without relying on worker skill.
Solution Approach 2:
The invention changes the physical parameters of the optical fiber routing by defining specific guide hole positions, sizes, and patterns on the circuit board. By controlling the geometric parameters of the routing path and the number of coils, the system achieves consistent light uniformity while reducing variability in task execution.
2Illumination intensity
If manual coiling task is performed to route optical fiber, then light transmission uniformity is improved, but task time variation increases
Solution Approach 1:
The circuit board is pre-designed with guide holes positioned at optimal locations to automatically guide the optical fiber into the correct coiling pattern. This preliminary preparation of the routing structure eliminates the need for workers to spend time planning and executing complex coiling maneuvers, reducing task time variation.
Solution Approach 2:
The optical fiber routing structure enables the optical fiber to self-coil uniformly by passing through guide holes and being fixed at predetermined positions, eliminating the need for manual coiling operations. The structure guides the fiber to form consistent loops automatically, ensuring uniform light transmission without relying on worker skill.
3Illumination intensity
If optical fiber is coiled to improve light uniformity, then illumination consistency is improved, but device complexity increases
Solution Approach 1:
The circuit board serves as an intermediary structure that provides guide holes to route and coil the optical fiber. This intermediary component simplifies the overall system by integrating the coiling function into the existing circuit board structure, avoiding the need for separate complex coiling mechanisms or fixtures.
Data Source
AI summary
A light source uniformity adjusting device is provided, which easily and exactly performs a coiling task of an optical fiber. The light source uniformity adjusting device includes a base plate including a plurality of holes therein; a first fixing portion on one side of the base plate, fixing a first portion of an optical fiber; a second fixing portion disposed on another side of the base plate, fixing a second portion of the optical fiber; and a post portion inserted into at least one hole from among the plurality of holes, the post portion routing the optical fiber on the base plate such that the optical fiber has at least one curved shape between the first portion and the second portion.