Shading Module Enhances Headlamp Light Intensity
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Solution Overview
Problem
Conventional vehicular headlamps struggle to enhance light intensity while reducing glare for oncoming vehicles, often compromising recognition for both oncoming and self-lane vehicles due to imperfect light distribution patterns.
Innovation Solution
A shading module with a shade having an arc-recessed front end and inclined reflective surfaces, positioned under the reflector, enhances light intensity by directing light beams effectively through a combination of reflection and refraction, reducing glare and improving recognition for oncoming vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a conventional shade is used to block reflected light, then glare against oncoming vehicles is reduced, but light intensity of the self-lane deteriorates
Solution Approach 1:
The patent converts the harmful reflected light that would cause glare into a beneficial resource by using a reflection body to redirect it. The reflection body captures light reflected from the head-dissipating substrate and redirects it through the projection lens, transforming wasted light into useful illumination for the self-lane while the shade continues to control glare in the opposite lane.
Solution Approach 2:
The patent divides the light control function into separate components: the shade controls light in the opposite lane direction to reduce glare, while the reflection body redirects light to the self-lane. This segmentation allows each component to optimize its specific function without compromising the other, enabling simultaneous glare reduction and self-lane illumination enhancement.
2Loss of information
If supplemental light is added to improve recognition for oncoming vehicles, then recognition is enhanced, but glare against oncoming vehicles increases
Solution Approach 1:
The patent applies local quality by directing supplemental light specifically to the self-lane area where it is needed for recognition, while the shade simultaneously controls the opposite lane to prevent glare. The reflection body is positioned and angled to redirect light only where beneficial, creating localized illumination enhancement without causing harmful glare to oncoming vehicles.
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 achieves improved light intensity and reduced glare for oncoming vehicles, enhancing road recognition and safety by optimizing light distribution patterns, with experimental results showing higher luminous flux and light intensity compared to conventional technologies.
Implementation Method 1
the reflector 16 reflects the light to a projection lens set 18 through the shade 10
Implementation Method 2
The projection lens set 18 refracts the light and projects it on an environment outside a vehicle
Data Source
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AI summary
A shading module for enhancing the light intensity of a vehicular headlamp includes a shade, a reflection body, and a lighting element. The shade is fixed to a reflector of the vehicular headlamp and located under the reflector. The reflection body is extended frontward from the front end of the shade and has a reflective surface and a supplemental light plane. The lighting element emits light to the reflector. The reflector reflects the light to the upper surface of the shade, the reflective surface of the reflection body, and the supplemental light plane, so as to project a main light beam on an environment outside the vehicle. The reflective surface reduces the light intensity of a lower part of the main light beam projected on an opposite lane, and the supplemental light plane enhances the light intensity of an upper part of the main light beam.