LED Rear Light Module 3D Effect via Optical Reflection
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Solution Overview
Problem
Existing rear light systems for motor vehicles face challenges in creating a three-dimensional effect while minimizing volume, as traditional methods often compromise on aesthetics and functionality.
Innovation Solution
A modular, compact rear light device utilizing LEDs, a printed circuit board, light guide, mirror, and semi-transparent screen to create a 3D effect, with optional features for styling and enhanced functionality, ensuring efficient cooling and reduced size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If traditional bulbs and lamps are used in rear light housings, then the lighting function is achieved, but the housing size cannot be reduced
Solution Approach 1:
The patent replaces traditional bulbs and lamps with LED light sources, substituting a mechanical/electrical lighting system with a more compact solid-state lighting system. This substitution enables significant reduction in housing size while maintaining or improving lighting functionality, as LEDs have smaller physical dimensions and can be arranged in various configurations to achieve the required lighting patterns.
Solution Approach 2:
The patent introduces optical elements such as mirrors and light guides that manipulate light in additional spatial dimensions. By using mirrors to reflect light and light guides to redirect and distribute light, the system achieves effective lighting coverage in a compact three-dimensional arrangement, allowing the housing to be smaller while still providing adequate illumination in all necessary directions.
2Volume of moving object
If the housing size is reduced using LEDs, then the volume is minimized, but the 3D effect and virtual depth are compromised
Solution Approach 1:
The patent introduces mirrors and light guides as intermediary optical elements between the LED light sources and the external environment. These intermediaries manipulate the light paths to create virtual images and extend the perceived depth of the lighting elements, thereby achieving a 3D effect without increasing the physical housing volume. The mirrors create virtual extensions of the light sources, giving the illusion of greater depth.
Solution Approach 2:
The patent uses optical elements to add perceived dimensions to the compact housing. By strategically placing mirrors at specific angles and using light guides to extend light paths, the system creates virtual images that appear to exist in additional spatial dimensions, thereby achieving a 3D visual effect while maintaining a compact physical form factor.
3Adaptability or versatility
If multiple optical elements are added to create 3D effect, then the aesthetic functionality is improved, but the device complexity increases
Solution Approach 1:
The patent designs the optical elements to serve multiple functions simultaneously. The mirrors not only create 3D effects but also help distribute light evenly across the housing surface. The light guides serve both to redirect light to achieve desired patterns and to act as structural components of the housing. This multi-functionality reduces the need for separate dedicated components, thereby limiting the increase in overall system complexity.
Solution Approach 2:
The patent integrates multiple optical functions into combined components. For example, certain elements serve as both light guides and structural housings, while mirrors are positioned to simultaneously create 3D effects and assist in light distribution. By merging functions into fewer components, the patent achieves the desired aesthetic functionality without proportionally increasing device complexity.
4Productivity
If LEDs are arranged in compact configuration, then the productivity and output are improved, but the heat dissipation becomes more challenging
Solution Approach 1:
The patent segments the LED array into multiple smaller groups or clusters distributed throughout the housing. This segmentation allows heat to be distributed across multiple smaller heat generation zones rather than concentrated in one location, facilitating more effective heat dissipation. Each LED or small group can be thermally managed independently, preventing overheating while maintaining high overall lighting output.
Solution Approach 2:
The patent utilizes three-dimensional spatial arrangement of LEDs and incorporates heat dissipation structures in multiple dimensions. Heat sinks and thermal management components are positioned in various orientations and locations throughout the housing, utilizing vertical, horizontal, and diagonal spaces to maximize heat dissipation surface area while maintaining compact overall dimensions. This multi-dimensional thermal management approach enables effective heat removal from densely packed LEDs.
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, modular, and functional rear light system that achieves a 3D effect while maintaining standard lighting intensities and distributions, offering improved safety and aesthetic appeal with reduced volume and enhanced flexibility.
Implementation Method 1
a light guide, appropriate optical parts to guide and/or distribute the beams of one or more of said LEDs
Implementation Method 2
a mirror, with or without spare areas
Implementation Method 3
at least one semi-transparent screen
Data Source
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AI summary
The invention relates to a rear light device for motor vehicles, comprising multiple LED-type light sources and formed by a module including the following elements, from back to front in the direction of the substantially parallel light beam(s) emitted by said LEDs, namely: a printed circuit board (PCB) (1) comprising at least 3 LEDs and preferably at least 5 LEDs rendered functional by suitable printed circuits and an external power supply; a light guide (2); optical parts (3, 3') suitable for guiding and/or distributing the beams from one or more of said LEDs as desired; a mirror (4) optionally with transparent or perforated areas (8); at least one semi-transparent screen (5); as well as an optional casing (6) for housing all of said elements in a preferably sealed structure. The invention is suitable for the rear lights of motor vehicles.