Vehicle Lighting Device Using Segmented Reflection for Grill Patterns
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Solution Overview
Problem
Conventional lighting systems for vehicles require numerous light sources to implement grill lighting, increasing the unit cost and energy consumption.
Innovation Solution
A lighting device comprising a housing unit with a light source unit, a reflection unit, and a screen unit that minimizes the number of light sources by using a light source unit to emit light, which is reflected by the reflection unit and transmitted through the screen unit to create grill lighting patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If many light sources are used to implement grill lighting, then the lighting coverage and effect are improved, but the unit cost and energy consumption increase
Solution Approach 1:
The reflection unit is divided into multiple sections (first reflection section, second reflection section, third reflection section) with different reflection angles. Each section directs light to different areas of the screen unit, enabling comprehensive grill lighting coverage while using only a single light source. This segmentation of the reflection function allows one light source to effectively illuminate the entire grill area.
Solution Approach 2:
The patent introduces a three-dimensional reflection structure with surfaces oriented at different angles (first reflection surface, second reflection surface, third reflection surface) to redirect light in multiple directions. By utilizing spatial dimensionality and angular variation in the reflection unit, a single light source can project light across the entire grill area, replacing the need for multiple light sources.
2Illumination intensity
If many light sources are used to implement grill lighting, then the lighting coverage is improved, but the device complexity increases
Solution Approach 1:
The patent combines the functions of multiple light sources into a single integrated lighting system consisting of one light source unit and a multi-section reflection unit. The reflection unit integrates multiple reflection surfaces with different angles into a unified structure that performs the function of multiple light sources, thereby reducing device complexity while maintaining comprehensive lighting coverage.
Solution Approach 2:
The reflection unit serves multiple functions simultaneously: it reflects light from the single light source in multiple directions, distributes light across different areas of the screen unit, and creates comprehensive grill lighting coverage. This multi-functional design eliminates the need for multiple separate light sources and their associated control systems, reducing overall device complexity.
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 allows for effective implementation of grill lighting while reducing the number of light sources, thereby lowering costs and energy consumption, and enabling flexible lighting patterns through adjustable reflection and transmission configurations.
Implementation Method 1
a reflection unit provided in the housing unit and configured to reflect the light radiated by the light source unit by differently setting a reflection angle for each section
Implementation Method 2
a screen unit mounted on the housing unit and configured to cover the open portion and implement grill lighting by transmitting the light reflected by the reflection unit
Data Source
AI summary
The present disclosure relates to a lighting device for a vehicle, including a housing unit positioned on a vehicle body and configured to have an opening, a light source unit positioned on the housing unit and configured to radiate light, a reflection unit provided in the housing unit and configured to reflect the light, radiated by the light source unit, by differently setting a reflection angle for each section, and a screen unit positioned on the housing unit and configured to cover the opening and implement grill lighting by transmitting the light reflected by the reflection unit.