Vehicle Grill Lighting via Segmented Reflective Optical Path
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Solution Overview
Problem
Existing vehicle grill lighting systems require numerous light sources, increasing product costs and energy consumption, particularly in electric vehicles that have removed radiator grills.
Innovation Solution
A lighting device comprising a housing unit with a reflective unit and a screen unit, where the light source unit emits light that is reflected by the reflective unit and transmitted through the screen unit to create grill lighting, minimizing the number of light sources needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If many light sources are used to generate grill lighting, then the illumination intensity is improved, but the product cost increases and energy consumption increases
Solution Approach 1:
The reflective unit is divided into multiple reflective elements (first reflective element, second reflective element, third reflective element) that work together to distribute and redirect light from a single light source across the screen unit, achieving uniform illumination without requiring multiple light sources
Solution Approach 2:
The reflective unit acts as an intermediary between the light source unit and the screen unit, using reflective surfaces to redirect and distribute light from one light source across the entire screen area, eliminating the need for multiple light sources while maintaining illumination intensity
2Illumination intensity
If many light sources are used to generate grill lighting, then the illumination intensity is improved, but the energy consumption increases
Solution Approach 1:
The reflective unit serves as a light redistribution intermediary, capturing light from a single low-power source and redirecting it across the screen unit through multiple reflective surfaces, achieving high illumination intensity while minimizing energy consumption by avoiding the need for multiple high-power light sources
3Illumination intensity
If many light sources are used to generate grill lighting, then the illumination coverage is improved, but the device complexity increases
Solution Approach 1:
The reflective unit is segmented into multiple reflective elements with different orientations and positions (first reflective element at first angle, second reflective element at second angle, third reflective element at third angle), each contributing to different portions of the illumination coverage, achieving comprehensive coverage through optical geometry rather than multiple light sources
Solution Approach 2:
The solution transitions from a one-dimensional approach (multiple light sources arranged linearly) to a three-dimensional optical path approach, using reflective surfaces oriented at different angles to redirect light from a single source across the two-dimensional screen area, reducing complexity by utilizing spatial geometry
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 enables effective grill lighting for vehicles while reducing the number of light sources, thereby lowering costs and energy consumption, and can be installed on various parts of the vehicle body.
Implementation Method 1
a reflective unit provided in the housing unit and configured to reflect light emitted from the light source unit
Implementation Method 2
a screen unit mounted on the housing unit and configured to cover the opened portion of the housing unit and transmit the light reflected by the reflective unit
Data Source
AI summary
Provided is a grill lighting device for a vehicle including a housing unit positioned on a vehicle body and having a shape whose one side is opened, a light source unit positioned on the housing unit and configured to emit light, a reflective unit provided in the housing unit and configured to reflect light emitted from the light source unit, and a screen unit positioned on the housing unit and configured to cover the opened portion of the housing unit and transmit the light reflected by the reflective unit to generate grill lighting.