Vehicle Lamp Optical Module Layout for Uniform Distant Beam Areas
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Solution Overview
Problem
Conventional vehicle guide lamps struggle with uniformity in luminous intensity, particularly at longer distances, leading to reduced light efficiency and increased costs due to the need for multiple light sources and complex pattern formation.
Innovation Solution
A vehicle lamp with a plurality of optical modules, where the optical axis of at least one module is positioned in a pattern area at the longest distance, and light intensity between modules can differ, improving light uniformity and efficiency by minimizing light loss and allowing for various beam pattern designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple light sources are used to create various patterns, then pattern versatility is improved, but device complexity and cost increase
Solution Approach 1:
The patent divides the lighting system into multiple optical modules, each responsible for specific pattern areas. Each module contains light sources, lenses, and reflectors that can be independently configured to create different beam patterns, allowing versatility without requiring a complete system redesign for each pattern type.
Solution Approach 2:
The optical modules are designed with universal components that can serve multiple functions. The same module structure with adjustable lenses and reflectors can create various beam patterns (circular, rectangular, triangular, etc.), eliminating the need for dedicated hardware for each pattern type and reducing overall system complexity.
2Area of stationary object
If light sources are positioned to cover large areas, then illumination coverage is improved, but luminous intensity uniformity deteriorates
Solution Approach 1:
Different regions of the beam pattern are assigned to different optical modules with optimized local characteristics. Each module is designed to provide uniform illumination within its specific pattern area, with lens and reflector configurations tailored to the local geometric requirements, ensuring consistent luminous intensity across diverse pattern shapes and sizes.
3Device complexity
If a single optical module is used, then device complexity is reduced, but light efficiency at longer distances deteriorates
Solution Approach 1:
The illumination task is segmented across multiple optical modules, each optimized for specific angular ranges and distance zones. This segmentation allows each module to concentrate its light output more effectively in its designated direction, improving overall light efficiency at longer distances while maintaining manageable system complexity through modular architecture.
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
Enhances light uniformity and efficiency across the beam pattern, ensuring consistent illumination even at longer distances and enabling the creation of complex patterns with reduced costs and weight.
Implementation Method 1
a first shield unit interposed between the first light source unit and the first lens unit, to shield a portion of light irradiated by the first light source unit
Implementation Method 2
a first lens unit to project light, which is irradiated by the first light source unit, on a road surface
Data Source
AI summary
A lamp for a vehicle includes an optical unit including a plurality of optical modules to form a specific beam pattern on a road surface, the beam pattern includes a first pattern area and a second pattern area more spaced apart from the optical unit than the first pattern area, the optical unit includes a first optical module to form the first pattern area and a second optical module to form the second pattern area, and the second pattern area is placed on an optical axis of the second optical module.