Vehicle Light Guide With Side Emission for Lateral Visibility
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Solution Overview
Problem
Existing vehicle position lights are optimized for a single side and require two lights to cover both sides, consuming installation space and failing to meet visibility requirements from lateral angles.
Innovation Solution
A light guide with a main radiation surface and a side emitting surface, featuring smooth and rough surfaces, allows light to be directed in a main beam direction and diffusely reflected laterally, enhancing visibility from 45° to 80° off-axis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If two position lights are used to cover both sides of a vehicle, then lateral visibility is improved, but installation space consumption increases
Solution Approach 1:
The patent merges the functions of two separate position lights into a single lighting element. The light guide integrates multiple radiation surfaces (front, rear, and lateral sides) that can be illuminated by a single light source, eliminating the need for two separate position lights while maintaining visibility on both sides of the vehicle.
Solution Approach 2:
The lighting element is designed with multi-functionality to serve as a position light that radiates light in multiple directions (front, rear, and lateral) simultaneously. This universal design allows a single element to replace multiple specialized lights, reducing installation space while maintaining comprehensive visibility.
2Ease of manufacture
If a position light is optimized for a single side, then manufacturing simplicity is improved, but adaptability to cover both sides deteriorates
Solution Approach 1:
The light guide incorporates different surface qualities in different regions: smooth surfaces for directed light transmission in the main beam direction and rough surfaces for diffuse reflection in lateral directions. This local differentiation allows a single manufactured component to achieve multiple radiation patterns without requiring separate lights for each side.
Solution Approach 2:
The invention transitions from a two-dimensional optimization (single side coverage) to three-dimensional light distribution by adding lateral radiation surfaces. The light guide is designed with extended lateral surfaces that radiate light in previously uncovered angular ranges (45° to 80°), adding a spatial dimension to the lighting coverage.
3Speed
If smooth surfaces are used for light transmission, then light beam directionality is improved, but lateral visibility deteriorates
Solution Approach 1:
The light guide incorporates different surface qualities in different regions: smooth surfaces for directed light transmission in the main beam direction and rough surfaces for diffuse reflection in lateral directions. This local differentiation allows a single manufactured component to achieve multiple radiation patterns without requiring separate lights for each side.
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 light guide ensures compact design and improved lateral visibility, making it suitable for vehicles with limited space, particularly motorcycles.
Implementation Method 1
respective rough surfaces are configured to diffusely reflect light beams in such a manner that at least a portion of light beams reflected by respective rough surfaces exit the lighting body through the side emitting surface
Implementation Method 2
respective transmitting surfaces are configured to transmit light beams within the lighting body
Data Source
AI summary
The present invention relates to a light guide for a lighting element, wherein the light guide comprises a lighting body, wherein the lighting body comprises an interface for coupling in light beams.