Vehicle Lamp Modules with Anamorphic Lens for Design Flexibility
Solution Overview
Problem
Current vehicle headlamp designs are limited by the use of single-focus aspheric lenses, which restrict variability in arrangements and sizes, leading to suboptimal optical efficiency and design differentiation, especially when reduced in size.
Innovation Solution
The vehicle lamp is divided into unit modules with different lenses having distinct horizontal and vertical focal points, allowing for varied light distribution patterns and sizes, including a third lens with an anamorphic design that differs in horizontal and vertical focus, enhancing optical efficiency and design flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a single-focus aspheric lens is used to form a light distribution pattern, then the lens structure is simple and easy to manufacture, but the design differentiation is limited and optical efficiency is reduced when size is reduced
Solution Approach 1:
The headlamp is divided into multiple lens units (first lens unit, second lens unit, third lens unit) that can be independently designed and arranged. Each lens unit has its own light distribution pattern capabilities, allowing flexible combination to achieve various design differentiations while maintaining manufacturing simplicity of individual units.
Solution Approach 2:
The patent introduces a third lens unit with different focal lengths in horizontal and vertical directions (first focal length in horizontal direction, second focal length in vertical direction), creating asymmetric optical properties. This asymmetric design enables diverse light distribution patterns and design differentiation while maintaining reasonable manufacturing complexity.
2Volume of moving object
If the headlamp size is reduced, then the device becomes more compact, but optical efficiency is limited at specific height or less
Solution Approach 1:
By segmenting the headlamp into multiple specialized lens units (first lens unit for horizontal distribution, second lens unit for vertical distribution, third lens unit for combined distribution), each unit can be optimized for its specific function at reduced sizes, maintaining high optical efficiency in compact configurations.
Solution Approach 2:
Each lens unit is designed with specific local optical properties tailored to its function. The third lens unit has different focal lengths in horizontal and vertical directions, providing localized optical optimization that maintains efficiency even when the overall headlamp size is reduced.
3Adaptability or versatility
If multiple lens units with different focal properties are introduced to improve design differentiation, then design versatility is enhanced, but device complexity increases
Solution Approach 1:
The headlamp is divided into multiple independent lens units with standardized interfaces and mounting configurations. This segmentation allows complex optical functionality to be achieved through modular assembly rather than a single complex lens, managing device complexity through systematic modularity.
Solution Approach 2:
The multiple lens units are designed to work together in a universal system where each unit can perform its specific function (horizontal distribution, vertical distribution, or combined distribution). This multi-functional modular approach achieves design versatility while managing complexity through standardized interfaces and coordinated operation.
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 approach optimizes optical efficiency and design differentiation by enabling wider angle projections and improved performance, even in compact forms, while ensuring tolerance and manufacturability.
Implementation Method 1
a first lens that forms a first light distribution pattern with light emitted from a first light source device
Implementation Method 2
a second lens that forms a second light distribution pattern with light emitted from a second light source device
Implementation Method 3
a third lens that forms a third light distribution pattern with light emitted from a third light source device... the third lens is formed such that a horizontal focus and a vertical focus differ from each other
Data Source
AI summary
A lamp for a vehicle includes a first lamp module including a first lens that forms a first light distribution pattern with light emitted from a first light source device, a second lamp module including a second lens that forms a second light distribution pattern with light emitted from a second light source device, and a third lamp module including a third lens that forms a third light distribution pattern with light emitted from a third light source device. The first lens and the second lens are formed such that a horizontal focus and a vertical focus are the same as each other, and the third lens is formed such that a horizontal focus and a vertical focus differ from each other.