Vehicle Lamp Light Guide Assembly with Patterned Middle Element
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Solution Overview
Problem
Existing vehicle light-emitting assemblies using light guide rods lack the ability to display predetermined information effectively, limiting their functionality in signaling and lighting applications.
Innovation Solution
A light-emitting assembly comprising a first and second light guide element connected at end sections with a middle element between them, featuring a light-transmitting region on the middle element that allows for the emission of predetermined patterns or text, enhancing the display effect by directing light through specific areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If light guide rods are used for signaling and lighting functions, then the structure is simple and reliable, but the ability to display predetermined information is lacking
Solution Approach 1:
The middle element is segmented into different functional regions: a light-transmitting region with predetermined shape (for displaying information such as logos or text) and a light-blocking region (for structural support and light guidance). This segmentation enables the single middle element to simultaneously provide both information display and structural functions without requiring multiple separate components.
Solution Approach 2:
The middle element serves multiple functions: it acts as a structural connector between light guide elements, provides light guidance through its light-transmitting region, displays predetermined information through its shaped light-transmitting region, and offers structural support through its light-blocking region. This multi-functionality resolves the contradiction by enhancing display capability while maintaining structural simplicity.
2Adaptability or versatility
If a middle element is added between light guide sections to enable information display, then the display effect is enriched, but the structural complexity increases
Solution Approach 1:
The patent merges the display function and structural support function into a single middle element. The light-transmitting region with predetermined shape provides information display, while the light-blocking region provides structural support. This merging approach enables information display functionality to be added without increasing the number of separate components, thus resolving the contradiction between enhanced display capability and structural complexity.
3Loss of information
If the light-transmitting region occupies only a part of the middle element face, then predetermined information can be displayed effectively, but the light transmission area is reduced
Solution Approach 1:
The middle element exhibits local quality differentiation: the light-transmitting region with predetermined shape allows light transmission for information display, while the light-blocking region prevents light transmission for structural support and light guidance. This local quality approach ensures that information is displayed clearly in the light-transmitting region while maintaining overall light transmission efficiency through proper positioning and sizing of the light-transmitting region within the middle element.
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
Enables the effective display of information such as logos or text by controlling light emission through the light-transmitting region, enriching the display effect and providing a simple yet functional structure for vehicle lamps.
Implementation Method 1
light emitted by the light source is coupled into the light guide rod and propagates in the light guide rod. The light that is coupled into the light guide rod is reflected by a light decoupling structure of the light guide rod, in order to destroy the conditions for total reflection of light in the light guide rod
Implementation Method 2
The light that is coupled into the light guide rod is reflected by a light decoupling structure of the light guide rod, in order to destroy the conditions for total reflection of light in the light guide rod, so that the light can be emitted from the light guide rod
Data Source
AI summary
A light-emitting assembly includes a first light guide element and a second light guide element, which have end sections connected to each other, the end sections having a main light propagation direction. The first and second light guide elements further having light guide sections which spread out from the top of a connection region of the end sections. A middle element is located between the light guide sections of the light guide elements and spaced apart from the top, the middle element having a light entry face and a light exit face which is opposite the light entry face and configured to emit light between the spread-out light guide sections. At least one of the light entry face and the light exit face has a light-transmitting region with a predetermined shape, the light-transmitting region occupying a part of a corresponding face of the middle element.