Curved Vehicle Lamp Light Source Unit With Embedded LEDs
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing light source units with light guides face challenges in being mounted in thin, curved spaces due to thickness constraints and interference with wiring and other components.
Innovation Solution
A light source unit comprising a translucent film with embedded light sources and a lens system featuring light collecting and reflective grooves, allowing for thin, flexible installation and directional light emission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a light guide or light pipe is mounted on a light source unit to guide light to a desired position, then light can be emitted from a desired position, but the light source unit requires a certain thickness that interferes with installation in thin, curved spaces
Solution Approach 1:
The patent extracts the light guiding function from a separate light guide component and integrates it directly into the lens structure. The lens itself forms light collecting portions and reflective portions that guide light without requiring an additional light guide layer, thereby eliminating the thickness constraint while maintaining light direction control
Solution Approach 2:
The patent merges the light collecting function and light direction control function into a single integrated lens structure. The lens simultaneously performs light collection from LEDs, light direction control through reflective portions, and light emission, eliminating the need for separate light guide components and reducing overall thickness
2Illumination intensity
If a light guide is mounted on the light source unit, then light can be guided to a desired position, but wiring and arrangement of other components are interfered with in thin spaces
Solution Approach 1:
The patent removes the separate light guide component and its associated wiring structure, extracting only the essential light direction control function and integrating it into the lens. This simplifies the overall device structure and reduces wiring complexity in thin installation spaces
Solution Approach 2:
The lens structure serves multiple functions simultaneously: light collection from LEDs, light direction control through reflective portions, and light emission. This multi-functionality eliminates the need for separate light guide components and simplifies the overall device structure
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
Enables efficient light emission in desired directions with reduced thickness, allowing for novel linear light patterns and flexible installation in limited spaces.
Implementation Method 1
a reflective portion for changing a direction of the light entering at the light collecting portion
Data Source
AI summary
Problem: To provide a light source unit that can be housed in a narrow space, can be curved to match the shape of the space, and can emit linear light in a desired lighting pattern, and a vehicle lamp equipped with this light source unit.Solution: A light source unit 1 is comprised of a strip of translucent film 3 in which LEDs 2 are embedded and strips of lenses 4 that cover the translucent film 3 on the top and back surfaces thereof. The lenses 4 are provided with a light collecting portion 41 that collects the light from the LEDs 2 and a reflective portion 42 that changes the direction of the light incident from the light collecting portion 41 on the surface opposite the surface on which the light collecting portion 41 is provided. The LEDs 2 are arranged linearly along the longitudinal direction of the translucent film 3, and each can be independently controlled for lighting.