Shared-Aperture Headlight Optics for Multi-Mode Beam Control
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Solution Overview
Problem
Existing vehicle headlight systems lack a compact and efficient solution for providing high-beam, low-beam, and cornering light functionalities, often requiring multiple light sources and reflectors that are not optimized for shared illumination patterns and increased intensity in dim ambient conditions.
Innovation Solution
A headlight design incorporating a housing with a first light source for high-beam and low-beam modes, a second light source for cornering light, and additional light sources along the projection lens periphery, utilizing a shutter for cutoff patterns and reflectors to enhance illumination, allowing for shared components and improved visibility in multiple modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate light sources and reflectors are used for high-beam, low-beam, and cornering light functionalities, then each lighting mode can be optimized independently, but the device complexity and size increase
Solution Approach 1:
The patent implements multi-functionality by enabling a single light source to perform multiple lighting modes (high-beam, low-beam, and cornering light) through a shared optical system. The projection lens and shutter mechanism allow one light source to dynamically switch between different illumination patterns, eliminating the need for separate dedicated light sources for each mode and thereby reducing structural complexity while maintaining functional versatility
Solution Approach 2:
The patent applies dynamics through the use of a movable shutter that can change position to dynamically alter the optical path. The shutter transitions between different positions to switch between high-beam, low-beam, and cornering light modes, allowing the system to adapt its illumination pattern in real-time without requiring separate static optical systems for each mode
2Device complexity
If a single light source is used for multiple modes, then device complexity is reduced, but illumination intensity and optimization for each mode may be compromised
Solution Approach 1:
The patent applies preliminary action by pre-positioning the shutter in specific locations within the optical path before mode switching occurs. The shutter is designed with predetermined positions that correspond to each lighting mode (high-beam, low-beam, cornering light), allowing the single light source to achieve optimized illumination patterns for each mode without requiring complex real-time adjustments during operation
Solution Approach 2:
The patent uses the shutter as an intermediary element between the single light source and the projection lens. The shutter mediates the light path by selectively blocking or directing light to create different illumination patterns, enabling one light source to achieve the illumination intensity and pattern optimization typically requiring multiple dedicated light sources
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 provides a compact headlight system capable of high-beam, low-beam, and cornering light functionalities, enhancing visibility in front and peripheral areas, particularly in dim conditions, by leveraging shared components and optimized illumination patterns.
Implementation Method 1
A shutter (e.g., actuated by a solenoid) may provide a cutoff pattern when in a first position to block a portion of the light emitted from the first light source for the low-beam mode
Implementation Method 2
The first light source may be backed by a first reflector and may provide light through a projection lens onto the exterior of the vehicle
Implementation Method 3
The first light source may be backed by a first reflector and may provide light through a projection lens onto the exterior of the vehicle
Implementation Method 4
A shutter (e.g., actuated by a solenoid) may provide a cutoff pattern when in a first position
Data Source
AI summary
A system may have lights. A light may include a first light source and a first reflector configured to provide lighting for a high-beam mode and for a low-beam mode. The light may include a second light source and a second reflector configured to provide lighting for a cornering light mode. The lighting provided by the first light source and the lighting provided by the second light source may pass through the same headlight lens aperture. A light blocking structure may provide a cutoff pattern that define the illumination pattern of the low-beam lighting and the cornering lighting. One or more additional light sources may be provided to boost the intensity of a hot spot for high-beam lighting.