Multi-Faceted Lens Lamp Central Peripheral Light Distribution
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Solution Overview
Problem
Conventional matrix headlamps struggle to clearly distinguish between the central and peripheral areas of the light distribution pattern, leading to difficulties in forming a targeted lighting or non-lighting image.
Innovation Solution
The lamp employs a plurality of light sources and multi-facet lenses (MFLs), where the central MFL forms the central part of the light distribution pattern with a higher intensity, and the peripheral MFLs, with varying orientations and distances from their optical axes, form the peripheral parts with lower intensities and wider distributions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If both central light and peripheral light are turned on to illuminate the front side, then the visibility function is enhanced, but the central area and peripheral area of the light distribution pattern are not clearly distinguished
Solution Approach 1:
The patent divides the light distribution pattern into distinct central and peripheral areas by controlling the light sources and lenses separately. The central light source with its dedicated lens forms a concentrated central pattern, while peripheral light sources with their lenses form separate peripheral patterns, preventing overlap and maintaining clear distinction between areas.
Solution Approach 2:
The patent applies different optical characteristics to different parts of the system. The central lens has specific focal properties optimized for the central light source, while peripheral lenses have different focal distances and orientations optimized for their respective light sources. This creates locally optimized light distribution with clear spatial separation between central and peripheral areas.
2Device complexity
If conventional lenses are used for both central and peripheral light sources, then the structure is simple, but the pattern areas are not clearly distinguished and targeted lighting images cannot be formed
Solution Approach 1:
The patent implements local quality by giving different optical properties to the central lens and peripheral lenses. The central lens has a focal distance optimized for creating a concentrated central pattern, while peripheral lenses have different focal distances and orientations to create spread-out peripheral patterns. This localized optimization enables precise control over light distribution patterns.
Solution Approach 2:
The patent changes key optical parameters between the central lens and peripheral lenses, specifically the focal distance and orientation angle. The peripheral lenses are positioned at greater distances from their respective light sources compared to the central lens, and are oriented at specific angles relative to the optical axis. These parameter changes create distinct light distribution characteristics that enable clear pattern differentiation.
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 configuration allows for clear differentiation between the central and peripheral areas of the light distribution pattern, enabling the formation of a targeted lighting or non-lighting image with improved visibility and aesthetic appeal.
Implementation Method 1
each MFL of the plurality of MFLs is configured to receive the light output from the respective light source and to transmit the received light
Data Source
AI summary
A lamp includes light sources, and MFLs corresponding to the light sources, each light source is configured to output light along an optical axis, each MFL is configured to receive the light output from the respective light source and to transmit the received light, and the MFLs include a central MFL, to which a first light output from a central light source is input, and from which the first light is output to form a central part of a light distribution pattern, a peripheral MFL, to which a second light output from a peripheral light source is input, and from which the second light is output to form a peripheral part of the light distribution pattern, wherein an intensity of illumination of the peripheral part of the light distribution pattern is lower than an intensity of illumination of the central part of the light distribution pattern.