Automotive Light Guide Surface for Dynamic Light Screen Effects
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Solution Overview
Problem
Existing automobile interior and exterior atmosphere lights have limited light emitting forms and effects, primarily relying on static brightness adjustments of LED beads, which fail to achieve dynamic and engaging light screen effects.
Innovation Solution
A light emitting device comprising a light source and a light guide with an uneven emitting surface, capable of reflecting or refracting light on a curved or flat face, forming a bright and dark pattern of light and shade, utilizing a displacement mechanism for dynamic movement and varying light effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional LED beads with static brightness adjustment are used, then the device structure is simple, but the light emitting forms and effects are limited and cannot achieve dynamic light screen effects
Solution Approach 1:
The patent introduces a light guide as an intermediary component between the LED light source and the external environment. The light guide with its specific texture and pattern transforms the simple LED light output into complex light screen effects through reflection and refraction, thereby enhancing adaptability without directly complicating the light source itself
Solution Approach 2:
The patent changes the physical parameters of the light guide, specifically its texture and pattern characteristics. By varying these parameters, the system can produce different light emitting forms and effects (spot, line, facets, etc.) from the same LED source, achieving versatility through parameter variation rather than structural complexity
2Adaptability or versatility
If LED brightness is adjusted to achieve different light effects, then the control method is simple, but the display effects are poor and cannot meet light screen requirements
Solution Approach 1:
The light guide acts as an intermediary that transforms simple brightness control into rich display effects. The textured surface of the light guide modifies the light distribution patterns, converting a single control parameter (brightness) into multiple visual outcomes (different light forms and screen effects)
Solution Approach 2:
The light guide features local variations in its surface texture and pattern, creating different light emitting characteristics at different locations. This local quality variation enables diverse display effects (spot, line, facet patterns) without requiring complex global control mechanisms
3Adaptability or versatility
If a light guide with specific texture and pattern is introduced, then light screen effects are achieved, but the device structure becomes more complex
Solution Approach 1:
Instead of creating complex multi-component structures, the patent achieves light screen effects by changing the surface parameters of a single light guide component. The texture and pattern variations in the light guide provide the necessary complexity for diverse light effects while maintaining a relatively simple overall device structure
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 enhances the visual appeal of automobile lighting by creating a dynamic and varied light screen effect, offering a more engaging and premium lighting experience compared to traditional monotonous designs.
Implementation Method 1
the light emitted by the light source enters into the light guide and is reflected or refracted with a set pattern on a corresponding curved or flat face
Implementation Method 2
the light emitted by the light source enters into the light guide and is reflected or refracted with a set pattern on a corresponding curved or flat face
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
The present invention relates to a light emitting device that achieves a light screen effect, comprising a light source (1) and a light guide (2). The light guide (2) is an elongated part, the light source (1) being arranged at one axial end of the light guide (2), the light guide (2) having an uneven emitting surface (4), wherein the light emitted by the light source (1) enters into the light guide (2) and is reflected/refracted with a set pattern on a corresponding curved or flat face, thereby forming a bright and dark pattern of light and shade. The light guide (2) has an uneven emitting surface (4) capable of reflecting/refracting light on a reflecting curved face and/or a LENS face inside a grille, such that a user can see the light reflected/refracted, which is bright and dark pattern of light and shade, from the outside of an automobile