Vehicle Light Module with Segmented Reflective Silicone Body
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Solution Overview
Problem
Conventional vehicle headlamp systems face issues with glare due to light spill-over from inactive LEDs, as the reflection from neighboring surfaces makes it difficult to completely prevent illumination into oncoming traffic, leading to excessive glare for oncoming drivers.
Innovation Solution
A modular headlamp system with individually addressable LEDs, a condenser lens, and a reflective silicone body that directs light through transparent silicone guides, preventing light bleed and allowing selective illumination to create specific light patterns, including high and low beams, while avoiding glare by deactivating LEDs aimed at oncoming vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If conventional headlamp systems use multiple LEDs with reflective surfaces, then light distribution coverage is improved, but light spill-over and glare to oncoming traffic increases
Solution Approach 1:
The headlamp system is divided into multiple independently controllable LED modules, each with its own reflector and light guide. This segmentation allows selective activation of specific LED groups to illuminate different road areas while preventing light spill-over to oncoming traffic by deactivating LEDs that would cause glare.
Solution Approach 2:
Different regions of the headlamp system have specialized optical properties. The reflective body has varying reflectivity in different zones, with specific reflector shapes and light guide configurations tailored to direct light from each LED group to specific target areas on the road, optimizing illumination while minimizing glare.
2Object-affected harmful factors
If selective LED activation is implemented to reduce glare, then glare control is improved, but light pattern homogeneity deteriorates
Solution Approach 1:
The lighting system is segmented into multiple LED groups with dedicated reflectors and light guides, allowing independent control of each segment. This enables selective activation of specific groups to create different light patterns (high beam, low beam, cornering lights) while maintaining overall pattern homogeneity through coordinated control.
Solution Approach 2:
The system dynamically adjusts which LED groups are active based on driving conditions, traffic detection, and desired beam pattern. The control system can selectively illuminate or deactivate specific LEDs and reflector assemblies to optimize both glare control and light pattern homogeneity for different operational scenarios.
3Speed
If reflective surfaces are used to direct light, then light directionality is improved, but light bleed between adjacent LEDs increases
Solution Approach 1:
Each LED is equipped with its own dedicated reflector and light guide assembly, creating physically separated optical channels. This segmentation prevents light from one LED from bleeding into adjacent LED pathways, as each light guide is individually contained within the reflective body structure.
Solution Approach 2:
The light guide acts as an intermediary component between the LED and the final light output. It receives light from the LED, confines it within its transparent structure, and directs it along a controlled path to the intended target area, preventing light bleed while maintaining directionality.
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 system effectively reduces glare by controlling light distribution through selective LED activation and optical design, ensuring a more focused and collimated beam pattern, enhancing safety by minimizing light spill-over into oncoming traffic.
Implementation Method 1
A lens arrangement is also disclosed. The lens can be configured to receive an illumination pattern received from the plurality of LEDs, and project into a more collimated pattern. In embodiments, the lens is a condenser lens.
Implementation Method 2
a reflective silicone body that directs light through transparent silicone guides
Data Source
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AI summary
Disclosed is a vehicle lighting module. The module uses material that is configured into conical reflectors which are defined into the body. The reflectors include light guides which, along with the reflectors direct illumination from aligned LEDs into a condenser lens.