Motor Vehicle Taillight Curved Light Guide Reflector
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Solution Overview
Problem
Taillights with light guide elements often fail to utilize light effectively, leading to reduced visibility in areas where the light guide is curved, resulting in darker appearances compared to other regions.
Innovation Solution
Incorporating a reflector with a curvature matching the light guide element's curved region to redirect diffused light towards the light emission surface, combined with a light body that enhances light homogeneity using optical structures, to improve light distribution and visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a light guide element with a curved region is used to extend visibility across the entire width of the motor vehicle, then the light can reach distant regions, but the curved region causes light to be radiated away from the light emission surface resulting in darker appearance and reduced visibility in that area
Solution Approach 1:
The patent converts the harmful effect of the curved region (which causes light to radiate away and create dark areas) into a beneficial effect by introducing a reflector that captures and redirects this otherwise lost light back toward the light emission surface, thereby improving visibility in the curved region while maintaining the extended coverage area
Solution Approach 2:
The reflector acts as an intermediary element between the curved light guide region and the light emission surface, capturing light that would otherwise be lost and redirecting it to contribute to the visible light output, thus resolving the contradiction between extended coverage and maintained brightness
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 ensures better utilization of light produced by the light source, providing more uniform and enhanced visibility of the taillight, especially in areas where the light guide is curved, by reflecting and diffusing light effectively.
Implementation Method 1
The reflector can be designed to reflect light emitted by the light guide element in the direction of the light emission surface
Implementation Method 2
The light guide element is designed to guide the light from the first end in the direction of a second end
Implementation Method 3
The light source is designed to emit light in the direction of a first end of the light guide element
Data Source
AI summary
A taillight for a motor vehicle, comprising a light guide element, a light source, and a light emission surface. The light source emits light in the direction of a first end of the light guide element. The light guide element is designed to guide the light from the first end in the direction of a second end. The light guide element is designed to output a part of the light between the first end and the second end through the light emission surface to an environment of the taillight. The light guide element has a curved region in which the light guide element is curved away from the light emission surface. The taillight also comprises a reflector designed to reflect light emitted by the light guide element in the direction of the light emission surface. The reflector being arranged directly adjacent to the curved region.