Optical Fiber Lamp Lens Uniform Light Collection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Optical fiber lamp apparatuses face challenges in uniformly collecting light due to differences in radiation angles and diameters of optical fiber strands, leading to non-uniform light distribution and brightness variations across the fibers.
Innovation Solution
A lens design with a first portion having a gradually increasing diameter and a second portion with a gradually decreasing diameter, along with a specific geometry for the incident and exit portions, ensures that light is uniformly collected and distributed across the optical fibers, minimizing brightness differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a conventional lens design is used to collect light from a light source, then light can be directed toward the optical fiber, but due to differences in radiation angles and diameters of optical fiber strands, the light cannot be collected uniformly on all strands, resulting in non-uniform light distribution and brightness variations
Solution Approach 1:
The lens is divided into two distinct portions: a first portion with a first total reflector having a diameter that gradually increases, and a second portion with a second total reflector having a diameter that gradually decreases. This segmentation allows each portion to handle different aspects of light collection and distribution, resolving the contradiction by creating a specialized structure for uniform light collection across multiple optical fiber strands without requiring overly complex manufacturing processes
Solution Approach 2:
The patent introduces dimensional variations in the lens structure through the gradual diameter changes in both portions. The first portion expands in diameter to capture light from a wider radiation angle, while the second portion contracts to match the optical fiber diameter. This dimensional transformation approach enables uniform light distribution across strands with different diameters and radiation angles, solving the uniformity problem without excessive structural complexity
2Productivity
If the light emitted from the light source is collected at a center portion of the optical fiber, then light collection efficiency is improved, but a difference in light occurs in each strand of the optical fiber, leading to brightness variations
Solution Approach 1:
The lens design implements local quality variations through its two portions with different diameter profiles. The first portion has an expanding diameter to efficiently collect light from the light source's radiation angle, while the second portion has a contracting diameter to distribute light uniformly across each optical fiber strand. This local differentiation in structural quality enables both high collection efficiency and uniform brightness distribution, resolving the contradiction between productivity and illumination uniformity
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 lens design achieves uniform light collection and distribution across optical fibers, enhancing the quality of lighting by ensuring each strand emits light with the same brightness.
Implementation Method 1
a first total reflector having a diameter which is gradually increased toward a first side of the first total reflector from the incident portion are formed so that the light irradiated from the light source is reflected to travel toward the other side
Implementation Method 2
a second total reflector extending from the first side of the first total reflector and having a diameter which is gradually decreased and an exit portion facing optical fibers on one side of the second total reflector are formed, wherein the light which is incident to the first portion and then reflected is guided through the exit portion in the second portion to be collected on the optical fibers
Data Source
AI summary
Disclosed herein is a lens of an optical fiber lamp apparatus, which allow light to be entirely collected uniformly on an optical fiber when lighting using the optical fiber to minimize a difference in brightness for each optical fiber, improving quality of lighting through the optical fiber, and an optical fiber lamp apparatus having the same.