Optical Fiber LED Light String for Obstacle-Resistant Brightness

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Solution Overview

Problem

Conventional light strings using light-emitting diodes face issues with brightness reduction due to obstacles blocking diodes, leading to increased power consumption and costs when more diodes are used to compensate for the loss in brightness.

Innovation Solution

A light-emitting diode light string with an optical fiber design that conducts light through an optical fiber, extending the light exiting position and preventing obstacles from blocking the light, while reducing the number of diodes needed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If the quantity of light-emitting diodes is increased to compensate for brightness reduction caused by obstacles, then the overall brightness is improved, but power consumption and cost increase

Engineering Contradiction:
Improveoverall brightnessVSAvoidpower consumption
Core Design Contradiction:
Illumination intensityVSUse of energy by moving object

Solution Approach 1:

The patent extends light emission from a single-point LED into a three-dimensional spatial distribution using optical fibers. The optical fibers conduct light from the LED and emit it at multiple positions along the fiber length, creating a distributed light source that illuminates obstacles from multiple spatial dimensions, thereby maintaining overall brightness without increasing LED quantity or power consumption

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Illumination intensity

If the quantity of light-emitting diodes is increased to compensate for brightness reduction caused by obstacles, then the overall brightness is improved, but product cost increases

Engineering Contradiction:
Improveoverall brightnessVSAvoidproduct cost
Core Design Contradiction:
Illumination intensityVSDevice complexity

Solution Approach 1:

The patent uses optical fibers to transform light emission from a single-point source into a distributed three-dimensional illumination system. This allows one LED to effectively replace multiple LEDs by emitting light at multiple positions along the optical fiber, reducing the total number of LEDs needed and thereby lowering product cost while maintaining overall brightness

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Reliability

If a housing is added outside the light-emitting diode to increase visual effect, then the structural protection is improved, but light transmission is reduced and energy is lost

Engineering Contradiction:
Improvestructural protectionVSAvoidlight energy
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The patent introduces optical fiber as an intermediary medium between the LED and the surrounding environment. The optical fiber conducts light from the LED and emits it at multiple positions along its length, eliminating the need for a housing that would block or reduce light transmission. This intermediary approach maintains structural protection while preserving light energy through the optical fiber's light-conducting properties

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Enhances overall brightness and visual effect by extending the light exiting position, reducing the number of diodes required, and lowering power consumption and costs.

Implementation Method 1

The optical fiber has a light entering end, a light exiting end, and a side light exiting portion

Methodology Applied
Scientific EffectTotal internal reflection: Total Internal Reflection

Implementation Method 2

the optical fiber has a plurality of optical structures, each of the optical structures is located at the light exiting end, and the light passes through the plurality of optical structures to form a scattered light

Methodology Applied
Scientific EffectLight scattering: Scattering

Data Source

PatentUS12352398B1Light-emitting diode light string with optical fiber
Publication Date: 2025.07.08 SHAO SHU FA
  • US12352398B1 patent drawing
  • US12352398B1 patent drawing
  • US12352398B1 patent drawing

AI summary

A light-emitting diode light string with an optical fiber includes a first wire, a second wire, a light-emitting diode, and an optical fiber. The light-emitting diode is connected in parallel between the first wire and the second wire, which has a light-emitting surface, and when activated, generates a light at the light-emitting surface to have a first brightness. The optical fiber has a light entering end, a side light exiting portion, and a light exiting end. The light entering end is connected to the light-emitting surface, and the light entering end, the light exiting end, and the light-emitting surface are substantially aligned with a plumb line. The light has a second brightness at the light exiting end, the light has a third brightness at the side light exiting portion, the first brightness is substantially equal to the second brightness, and the second brightness is greater than the third brightness.