Vehicle Lighting Apparatus with Multi-Stage Reflector Redirection
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Solution Overview
Problem
Existing vehicle lighting apparatuses suffer from low light efficiency due to a significant amount of light being reflected from the reflector but not incident on the lens, leading to degraded light source efficiency.
Innovation Solution
A lighting apparatus for vehicles is designed with an extended reflector and multiple reflecting bodies to redirect light not initially incident on the lens, including a first reflecting body between the lens and the reflector and a second reflecting body to guide light to the lens, along with a refraction part on the lens to ensure light is within a preset distribution range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the reflector is extended forward to reflect more light, then the light efficiency is improved, but the device complexity increases
Solution Approach 1:
The reflector is divided into multiple segments: the main reflector body and an extension portion. This segmentation allows the extension to capture and redirect additional light that would otherwise be lost, improving light efficiency without requiring a complete redesign of the entire reflector structure.
Solution Approach 2:
The extension portion is positioned at a different spatial location (forward extension) relative to the main reflector body. This dimensional extension into the forward direction creates additional light reflection paths, enabling the system to capture light from angles that would otherwise miss the lens.
2Loss of energy
If multiple reflecting bodies are added to redirect light, then light efficiency is improved, but the device complexity increases
Solution Approach 1:
The extension portion serves multiple functions: it acts as both a structural extension of the reflector and an additional reflecting surface. This multi-functionality allows a single component to perform both structural support and light redirection, reducing the need for separate additional reflecting bodies.
Solution Approach 2:
The extension portion acts as an intermediary element between the main reflector and the lens. It captures light that misses the main reflector and redirects it toward the lens, serving as a mediator that improves light efficiency without requiring direct modification of the main reflector or lens structures.
3Illumination intensity
If the reflector extension is added to capture more light, then the light distribution range is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The extension portion is merged with the main reflector body as an integrated structure. This merging ensures that both components work together as a unified optical system, maintaining consistent alignment and reducing the need for high-precision separate positioning of multiple independent reflecting elements.
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
This configuration increases light efficiency, enhancing the brightness of light irradiated on the road surface while reducing energy consumption and production costs without replacing the light source.
Implementation Method 1
a reflector configured to reflect light generated from a light source forward
Implementation Method 2
a lens configured to be disposed in front of the reflector to receive the light reflected from the reflector
Implementation Method 3
a first reflecting body configured to be disposed between the lens and the reflector to receive light not received in the lens among the light reflected from the reflector
Implementation Method 4
a second reflecting body configured to guide the light reflected from the first reflecting body to the lens
Data Source
AI summary
A lighting apparatus for a vehicle may include a reflector configured to reflect light generated from a light source forward, a lens configured to be disposed in front of the reflector to receive the light reflected from the reflector, a first reflecting body configured to be disposed between the lens and the reflector to receive light not received in the lens among the light reflected from the reflector, and a second reflecting body configured to guide the light reflected from the first reflecting body to the lens.