Light Guide Tail Lamp with Embedded LEDs for Compact Uniform Illumination
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Solution Overview
Problem
Existing tail lamps are bulky, inconvenient to maintain, have non-uniform light emission, high energy consumption, and affect the aesthetic appeal of vehicles due to their size and design.
Innovation Solution
A light and thin tail lamp design featuring a high refractive index light guide structure with embedded light sources and a low refractive index lampshade, which reduces thickness, size, and energy consumption while providing uniform and soft light emission, integrated functions, and improved concealment of light sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a traditional incandescent lamp bulb is used as the light source, then the tail lamp can emit light, but the space in the cavity is larger and the lamp bulb is larger in size occupying more space
Solution Approach 1:
The patent replaces the traditional incandescent lamp bulb with an LED light source combined with a light guide plate. The LED emits light that is guided and distributed through the light guide plate, substituting the bulky incandescent bulb mechanism with a more compact LED system that achieves the same or better light emission效果 with reduced space occupation.
Solution Approach 2:
The light guide plate acts as an intermediary between the LED light source and the lampshade. It receives light from the LED and distributes it uniformly across the tail lamp assembly, enabling compact LED sources to produce uniform illumination that previously required larger incandescent bulbs.
2Adaptability or versatility
If multiple independent lamp regions are used for brake lamp, steering lamp, and reversing lamp, then each function can be independently implemented, but the tail lamp becomes troublesome in mounting and poor in integrity
Solution Approach 1:
The patent implements multiple lighting functions (brake lamp, steering lamp, reversing lamp) within a single integrated tail lamp assembly. The light guide plate structure allows different functional regions to be combined in one unit, enabling the tail lamp to perform multiple functions while maintaining structural integrity and simplifying mounting procedures.
3Use of energy by moving object
If traditional incandescent lamp bulbs are used, then light can be emitted, but the energy consumption is high and the life is short
Solution Approach 1:
The patent substitutes incandescent lamp bulbs with LED light sources. LEDs consume significantly less energy and have much longer operational lifetimes compared to incandescent bulbs, directly addressing the energy consumption and reliability concerns while maintaining light emission functionality.
4Illumination intensity
If incandescent lamp bulbs are used as point light sources, then light can be emitted, but the light emergence is nonuniform and relatively dazzling
Solution Approach 1:
The light guide plate serves as an intermediary that receives point-source light from the LED and transforms it into uniform distributed light. The light guide plate's optical properties diffuse and redistribute the light evenly across the tail lamp assembly, eliminating the non-uniform emergence and reducing the dazzling effect of point light sources.
Solution Approach 2:
The light guide plate has varying optical properties across its surface, with different regions designed to control light distribution. This allows the system to achieve uniform light emergence across the entire tail lamp assembly by strategically managing light propagation and distribution through the light guide plate structure.
5Illumination intensity
If large incandescent lamp bulbs are used, then sufficient light can be emitted, but the lamp bulb is conspicuous in the lampshade and affects the aesthetic degree
Solution Approach 1:
The patent replaces conspicuous incandescent lamp bulbs with compact LED light sources combined with a light guide plate. This substitution enables sufficient light emission while maintaining a sleek, modern appearance that enhances rather than detracts from the vehicle's aesthetic appeal.
Solution Approach 2:
The light guide plate acts as an intermediary that conceals the compact LED light source while providing uniform light emission. The light guide plate's surface becomes the visible light-emitting element, hiding the actual light source and creating a clean, aesthetic appearance that large incandescent bulbs cannot achieve.
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 results in a compact, easy-to-maintain tail lamp with uniform and non-dazzling light emission, reduced energy consumption, and enhanced aesthetic appeal by utilizing a light guide structure that integrates multiple functions into a single unit.
Implementation Method 1
the light guide structure is made of an optical material which is high in refractive index... rays emitted from the light sources enter the light guide structure through the incident surfaces... rays are uniformly emitted from the whole emergent surface after being reflected by the reflective surface and refracted by the emergent surface
Implementation Method 2
the other surface of the light guide structure is a reflective surface... rays are uniformly emitted from the whole emergent surface after being reflected by the reflective surface and refracted by the emergent surface
Data Source
AI summary
The present invention discloses a light and thin tail lamp comprising a light guide structure and a lampshade, wherein the light guide structure is arranged in the lampshade, one surface of the light guide structure is an emergent surface, and the other surface of the light guide structure is a reflective surface; two incident surfaces are arranged on opposite positions at two sides of the light guide structure, at least one of the incident surfaces is provided with light sources, and rays emitted from the light sources enter the light guide structure through the incident surfaces; and the light sources are connected with a control circuit. The light and thin tail lamp disclosed by the present invention is reasonable in design, small in thickness, size and occupied space, and convenient to mount; and the light and thin tail lamp is high in brightness, uniform in light emergence and non-dazzling.