Modular Light Guide With Transmission Elements
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Solution Overview
Problem
Conventional light guide assemblies often result in a dark central area, leading to non-uniform light distribution across the lens, which affects the overall luminance and aesthetic appeal.
Innovation Solution
A light guide assembly featuring a base with a removably secured light source and a light distributor with a primary reflection surface and transmission elements, which includes a collimator and beam splitter to distribute light uniformly across the lens by using a combination of refracting and reflecting surfaces to ensure even light emission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a conventional light guide assembly uses a simple light source and basic light distribution structure, then the device complexity is low, but the luminance uniformity across the lens deteriorates (dark central area appears)
Solution Approach 1:
The light distributor is segmented into multiple functional zones: a primary reflection surface for redirecting light and transmission elements (apertures) for allowing direct light passage. This segmentation enables different regions to perform specialized functions, achieving uniform luminance distribution across the lens while maintaining a manageable structural complexity.
2Illumination intensity
If transmission elements are added to the primary reflection surface, then the luminance uniformity improves (dark central area eliminated), but the manufacturing complexity increases
Solution Approach 1:
The transmission elements are designed with specific parameters including aperture size (e.g., 0.5mm to 2mm diameter), spacing patterns, and depth variations relative to the primary reflection surface. By optimizing these parameters, the design achieves uniform light distribution while accommodating standard manufacturing processes for plastic or glass components.
3Illumination intensity
If the light distributor uses both reflection and transmission mechanisms, then the light distribution uniformity improves, but the device complexity increases
Solution Approach 1:
The light distributor merges two optical mechanisms into a single integrated component: the primary reflection surface (which redirects light at specific angles) and transmission elements (which allow direct light passage). This combination is achieved within one monolithic or assembled light distributor structure, providing uniform light distribution without requiring separate reflection and transmission components.
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 achieves a uniform luminance distribution across the entire light exit surface, eliminating the dark central area and providing a visually appealing, evenly lit appearance.
Implementation Method 1
transmission elements extending out from the primary reflection surface therealong to allow a portion of the light to pass through the transmission elements of the primary reflection surface without being reflected
Implementation Method 2
primary reflection surface with a plurality of transmission elements extending out from the primary reflection surface
Data Source
AI summary
A light guide assembly includes a base and a light source that are removably secured to the base. The light source is oriented to emit light out and away from the base. A light distributor is spaced apart from the light source and distributes the light across the light guide assembly. The light distributor includes a primary reflection surface with a plurality of transmission elements extending out from the primary reflection surface therealong to allow a portion of the light to pass through the transmission elements of the primary reflection surface without being reflected by the primary reflection surface. This facilitates the creation of a uniform beam of light being emitted by the light guide assembly.