Irregular Light Guide Components for Uniform Brightness
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Solution Overview
Problem
Conventional light guides used in computer and peripheral devices suffer from uneven brightness and glare due to direct light transmission, which is exacerbated by the use of light diffusing agents that shorten light projection distance and range, resulting in a less aesthetically pleasing and less effective lighting effect.
Innovation Solution
A light guide device made of a diffusing agent-free, transmissive material with continuously connected and irregularly configured components that project light at varying angles, enhancing brightness uniformity and increasing light projection distance and range without the need for diffusing agents, while maintaining a smooth surface to prevent fogging and blurring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a light diffusing agent is added to the light guide material, then brightness uniformity is improved, but light projection distance and range are shortened
Solution Approach 1:
The patent removes the light diffusing agent from the light guide material, extracting the harmful element that caused light scattering and fogging. This allows light to maintain its original projection distance and range while achieving brightness uniformity through the irregular geometric configuration of the light guide components instead
Solution Approach 2:
The patent employs irregularly configured light guide components with asymmetric geometries that have multiple light-emitting surfaces at different angles. This asymmetric design creates uneven light projection patterns that, when combined, achieve overall brightness uniformity without requiring diffusing agents, thus preserving light projection distance
2Illumination intensity
If a light diffusing agent is added to the light guide material, then light scattering is enhanced, but the lighting effect becomes less aesthetic due to fogging
Solution Approach 1:
The patent extracts and removes the light diffusing agent from the system, eliminating the source of fogging and multiple light refractions. The desired light scattering effect is achieved instead through the geometric arrangement and angular configuration of the light guide components, maintaining aesthetic quality
Solution Approach 2:
The patent applies different geometric configurations and angles to different regions of the light guide components. Each local region has specific angular characteristics that control light emission direction, creating localized light scattering effects without the fogging caused by diffusing agents
3Ease of manufacture
If conventional flat strip light guides are used, then manufacturing is simplified, but the optical visual effect becomes tedious and lacks gorgeous light refraction
Solution Approach 1:
The patent transitions from conventional symmetric flat strip designs to asymmetric irregularly configured light guide components with multiple light-emitting surfaces at various angles. This asymmetric geometry creates complex and gorgeous light refraction effects while remaining manufacturable through standard molding processes
Solution Approach 2:
The patent adds angular dimensionality to the light guide components by creating multiple light-emitting surfaces at different angles rather than relying solely on the planar dimension. This multi-dimensional geometric configuration produces rich optical visual effects and gorgeous light refraction patterns
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 uniform brightness and a dazzling aurora-like effect, reducing manufacturing costs and extending light projection range, while maintaining a high-quality refractive effect and prolonging the service life of the light guide device.
Implementation Method 1
Each light-emitting surface defines with the base a respective contained angle that causes a glare effect when light passes through the respective light guide component
Data Source
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AI summary
A light guide device made of a light diffusing agent-free light transmissive material is disclosed to include a base provided with a light-incident surface at one side thereof to face toward the light-emitting side of a plurality of predetermined light-emitting devices, and a plurality of continuously connected and irregularly configured light guide components located on at least one side of the base and capable of unevenly projecting light passing therethrough toward the outside and respectively provided with at least three light-emitting surfaces, each light-emitting surface defining with the base a respective contained angle that causes a glare effect when light passes through the respective the light guide component.