Vehicle Reverse Lamp Optics for Rear Road Pattern Visibility
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle lamps do not effectively form a rear road surface pattern when a vehicle reverses, which can lead to reduced visibility and awareness for drivers and pedestrians during low-light conditions.
Innovation Solution
A vehicle lamp comprising a light source unit, a shield unit, and a lens unit that concentrates light onto a road surface to create a pattern, using a combination of main and auxiliary transmission apertures and lenses to enhance brightness and visibility, with the light source unit emitting light in a linear direction and the lens unit including convex and concave lenses to focus light onto specific areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a conventional reverse light is used, then the light source is simple and easy to manufacture, but the visibility and awareness for drivers and pedestrians during low-light conditions is insufficient
Solution Approach 1:
The reverse light is divided into multiple light sources arranged in a specific pattern (e.g., three light sources in a triangular arrangement). Each light source contributes to forming a recognizable geometric pattern on the road surface, enhancing visibility without requiring a single complex high-intensity source
Solution Approach 2:
Different regions of the road surface receive different lighting characteristics. The patterned arrangement creates specific illuminated zones that form a recognizable shape, allowing pedestrians and drivers to quickly identify the vehicle's presence and reversal state through the unique local lighting pattern
2Illumination intensity
If multiple light sources are arranged to form a pattern, then the visibility is improved, but the device complexity increases
Solution Approach 1:
Multiple light sources are integrated into a single housing unit with a unified optical system. The housing combines the mounting structure, light source holders, and diffusing elements into one assembly, reducing the number of separate components while maintaining the multi-source patterned illumination
Solution Approach 2:
The light housing serves multiple functions: it provides structural support for the light sources, acts as a mounting interface for the reverse light assembly, and incorporates diffusing or directing elements to shape the light pattern. This multi-functionality reduces the need for additional separate components
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 effectively forms a visible rear road surface pattern when a vehicle reverses, improving visibility and awareness for drivers and pedestrians by concentrating light onto specific areas, thereby enhancing safety during low-light conditions.
Implementation Method 1
a lens unit configured to concentrate the light transmitted through the shield unit onto a road surface
Implementation Method 2
a shield unit configured to selectively transmit a portion of the light generated from the light source unit
Implementation Method 3
a light source unit configured to generate light, and an optical part that allows the light to be emitted in one direction with linearity
Data Source
AI summary
A lamp for a vehicle forms a rear road surface pattern when the vehicle moves backward. The lamp for the vehicle includes a light source unit configured to generate light, a shield unit configured to selectively transmit a portion of the light generated from the light source unit, and a lens unit configured to concentrate the light transmitted through the shield unit onto a road surface. The lens unit includes a first lens part and a second lens part, and the second lens part includes an inner space through which the light emitted from the light source unit is transmitted.