Automobile Lamp Light Guiding Pipe Refraction Contrast
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Solution Overview
Problem
Conventional automobile lamps face challenges in achieving high light-and-shade contrast while maintaining efficient light energy utilization, simplicity in structure, and reducing weight, as they often require additional components like light-shielding sheets that complicate assembly and reduce energy efficiency.
Innovation Solution
The design incorporates a light guiding pipe with a light refracting groove featuring long and short inclined surfaces, a projecting lens, and a lightening body that guides light to create a light-and-shade cut-off line, enhancing contrast without losing energy, and simplifies the structure by eliminating the need for light-shielding sheets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a light-shielding sheet is added to create light-and-shade contrast, then the lighting pattern contrast is improved, but the light energy utilization efficiency decreases
Solution Approach 1:
The invention extracts and removes the light-shielding sheet from the system, replacing it with a light-guiding structure that uses refraction to create the desired light-and-shade contrast without blocking any light energy. The light guiding pipe with its specific refractive index and internal refraction structure directs light to create bright and dark regions without waste.
Solution Approach 2:
The invention replaces the mechanical light-shielding approach (using a physical sheet to block light) with an optical refraction system. The light guiding pipe uses controlled internal refraction at its boundaries to redirect light, creating the contrast effect through optical path manipulation rather than physical obstruction.
2Illumination intensity
If a light-shielding sheet is added to create light-and-shade contrast, then the lighting pattern contrast is improved, but the structure and assembly become more complicated
Solution Approach 1:
The invention merges the light guiding function and the light pattern shaping function into a single integrated light guiding pipe structure. The pipe's specific refractive index and geometric configuration perform both light transmission and contrast creation, eliminating the need for separate light-shielding sheets and simplifying the overall assembly.
Solution Approach 2:
The light guiding pipe serves multiple functions simultaneously: it guides light from the source, controls light distribution, creates the light-and-shade contrast pattern, and defines the output beam shape. This multi-functionality reduces the number of components needed and simplifies the system architecture.
3Illumination intensity
If a light-shielding sheet is added to create light-and-shade contrast, then the lighting pattern contrast is improved, but the weight increases
Solution Approach 1:
The invention extracts and removes the heavy light-shielding sheet from the system, replacing it with a lightweight light guiding pipe made of transparent material with specific refractive properties. The pipe's structure is optimized to provide the necessary optical function with minimal material, significantly reducing the overall weight.
4Illumination intensity
If a light-shielding sheet is added to create light-and-shade contrast, then the lighting pattern contrast is improved, but the structure becomes more complicated
Solution Approach 1:
The invention merges the light guiding function and the light pattern shaping function into a single integrated light guiding pipe structure. The pipe's specific refractive index and geometric configuration perform both light transmission and contrast creation, eliminating the need for separate light-shielding sheets and simplifying the overall assembly.
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
This solution achieves a significant increase in light-and-shade contrast between the left and right sides of the lighting pattern, conforming to stricter regulations while maintaining high light energy utilization efficiency and reducing structural complexity and weight.
Implementation Method 1
a light refracting groove is arranged at a bottom surface formed in front of the light output portion of the light guiding pipe, the light refracting groove includes a long inclined surface and a short inclined surface
Implementation Method 2
the light refracting groove includes a long inclined surface and a short inclined surface, and the long inclined surface is arranged adjacent to the light input surface
Data Source
AI summary
An automobile lamp having a lighting pattern with a light-and-shade contrast comprises a light guiding pipe, a projecting lens, and a lightening body. Two ends of the light guiding pipe are respectively arranged a light input surface and a light output portion. A light refracting groove is arranged at a bottom surface formed in front of the light output portion and includes a long inclined surface and a short inclined surface. The projecting lens has a light input surface and an arc light output surface. The lightening body projects an original light source opposite to the light input surface of the light guiding pipe. One part of lights of the lightening body is guided to the projecting lens for projecting a lighting pattern with a light-and-shade cut-off line, and the other part of lights is guided toward the lighting pattern to partially overlap the lighting pattern.