Covered Fiber Bundle for Vehicle Lighting Efficiency

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Solution Overview

Problem

Current vehicle lighting systems suffer from significant light decoupling in the fiber bundle region, leading to reduced efficiency and an aesthetically unpleasing appearance, with the decoupled light not being utilized for additional lighting functions or styling.

Innovation Solution

A fiber bundle with a bundling element and a fiber cover having a predetermined cross-sectional shape to hold optical fibers in a bundled position, allowing for efficient light transmission and utilization of decoupled light for both functional and styling purposes, including the use of phosphors or quantum dots to modify light output.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If optical fibers are used for vehicle lighting, then lighting functionality is achieved, but light decoupling occurs in the fiber bundle region reducing efficiency

Engineering Contradiction:
Improvelighting efficiencyVSAvoidlight decoupling loss
Core Design Contradiction:
ProductivityVSLoss of energy

Solution Approach 1:

The patent captures the decoupled light that would otherwise be wasted in the fiber bundle region and redirects it through a reflector and lens system to contribute to the vehicle lighting function. This converts the harmful light loss into a beneficial contribution to overall lighting efficiency, directly resolving the contradiction between achieving lighting functionality and minimizing energy loss.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

2Illumination intensity

If decoupled light is not utilized, then the fiber bundle region appears aesthetically unpleasing, but lighting efficiency is reduced

Engineering Contradiction:
Improvelighting efficiencyVSAvoidaesthetic appearance
Core Design Contradiction:
Illumination intensityVSShape

Solution Approach 1:

The fiber bundle region serves multiple functions: it maintains its primary role of light transmission while also becoming an aesthetic styling element through the integrated reflector, lens, and clear cover assembly. The decoupled light is converted into a design feature that enhances both lighting efficiency and visual appeal, allowing the same structure to fulfill multiple purposes simultaneously.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Stability of the object's composition

If a fiber cover is added to hold optical fibers in bundled position, then structural stability is improved, but device complexity increases

Engineering Contradiction:
Improvefiber bundle stabilityVSAvoidstructure complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent combines the fiber cover, reflector, lens, and clear cover into a single integrated assembly that performs multiple functions simultaneously. This merging approach provides structural stability for the fiber bundle while also capturing and redirecting decoupled light, and serving as an aesthetic element, thereby reducing overall device complexity compared to separate components for each function.

Inventive Principle:
Principle #5Merging (Combining)

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 enhances lighting efficiency by utilizing decoupled light for various vehicle lighting functions and serves as a styling element, improving the aesthetic appeal of vehicle lighting systems.

Implementation Method 1

a plurality of optical fibers, a light source coupled to the plurality of optical fibers and operable to direct light into input ends of the plurality of optical fibers

Methodology Applied
Scientific EffectLight transmission: Optical Fibre

Implementation Method 2

a fiber cover having a predetermined cross-sectional shape configured to hold the plurality of optical fibers in a bundled position and to transmit light into an outer region of the plurality of optical fibers defining an illumination region

Methodology Applied
Scientific EffectLight transmission: Refraction

Implementation Method 3

The fiber cover includes phosphors or quantum dots

Methodology Applied
Scientific EffectPhotoluminescence: Photoluminescence

Data Source

PatentUS10222022B2Covered fiber bundle for lighting modules
Publication Date: 2019.03.05 VALEO NORTH AMERICA INC(US)
  • US10222022B2 patent drawing
  • US10222022B2 patent drawing
  • US10222022B2 patent drawing

AI summary

A fiber bundle includes a plurality of optical fibers, a light source, and a fiber cover. The light source is coupled to the plurality of optical fibers and operable to direct light into input ends of the plurality of optical fibers. The fiber cover has a predetermined cross-sectional shape configured to hold the plurality of optical fibers in a bundled position and to transmit light into an outer region of the plurality of optical fibers defining an illumination region for vehicle lighting functions.