Vehicle Headlamp Optical Layout for Single-Aperture Multi-Function Lighting
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Solution Overview
Problem
Existing headlamp designs require multiple apertures for each function, constraining aesthetic design and making it difficult to integrate high-resolution projection systems like HD lighting technologies, which lack a modular package option.
Innovation Solution
A lighting system that combines multiple light modules into a single composite output beam using an optical device, such as a prism or mirror, to direct individual beams through a single aperture, allowing for multiple functions without multiple output apertures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple light sources and functions are integrated into a headlamp, then the functionality and performance are improved, but the number of output apertures increases which constrains aesthetic design
Solution Approach 1:
The patent combines multiple output beams from different light sources (high beam, low beam, fog light, daytime running light) into a single composite output beam using an optical device. This merging allows all lighting functions to share one output aperture, eliminating the need for multiple separate apertures and thus freeing up aesthetic design space while maintaining full functionality.
Solution Approach 2:
The patent introduces an optical device as an intermediary component between multiple light sources and the output aperture. This optical device (comprising reflective and refractive elements) acts as a mediator that redirects and combines the beams from different light sources into a single unified beam path, enabling multiple functions to exit through one aperture.
2Adaptability or versatility
If multiple light modules are used to enhance performance, then the versatility and illumination quality are improved, but the space required and device complexity increase
Solution Approach 1:
The patent merges multiple light modules (projector modules for high beam, low beam, fog light, and daytime running light) into a single integrated lighting system. By combining their output beams through the optical device, the system achieves enhanced performance and versatility while occupying less space than separate independent light modules would require.
Solution Approach 2:
The patent creates a universal lighting system where a single optical device and single output aperture serve multiple functions simultaneously. The optical device is designed to handle different beam types and directions, making the system multi-functional and space-efficient compared to dedicated separate systems for each lighting function.
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 a streamlined headlamp design with enhanced performance and versatility, saving space and allowing for individual beam control and optimal light distribution.
Implementation Method 1
The optical device comprises at least one reflective surface facing a light module and reflecting its output beam as a component of the composite output beam
Implementation Method 2
the optical device comprises at least one prism having at least one reflective surface which reflects a light module output beam off the reflective surface of the prism and directs it as a component of the composite output beam
Data Source
AI summary
A headlamp with a streamlined design that has one aperture for multiple functions, using a device that combines the outputs from individual light sources into a single visible output aperture. The device includes at least one mirror surface facing the light source and reflecting the output beam towards the visible output aperture, which can be achieved through the use of prisms or mirrors that are carefully positioned and angled to direct the individual beams towards the aperture.