Circular Light-Guiding Structure for Uniform Illumination
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Solution Overview
Problem
Conventional light-guiding devices with a small number of light-emitting diodes face challenges in achieving uniform light emission, leading to increased costs, power consumption, and reduced substrate area due to inefficient light distribution and lack of effective light-shielding, resulting in insufficient brightness.
Innovation Solution
A circular light-guiding structure with specific design features such as light source receiving slots, trenches, and microstructures that diffuse and scatter light uniformly, using a minimal number of light-emitting diodes, and incorporating light-shielding members to enhance light output and reduce loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a small number of light-emitting diodes is used, then cost and power consumption are reduced, but uniform light emission across the light circle cannot be achieved
Solution Approach 1:
The light-guiding structure is divided into multiple light-guiding portions (first, second, third, and fourth portions) with different light transmission rates. This segmentation allows each portion to control light distribution in specific directions, enabling uniform light emission across the entire light circle even with fewer light-emitting diodes.
Solution Approach 2:
Different portions of the light-guiding structure have different light transmission rates tailored to their specific functions. The first light-guiding portion has a higher light transmission rate to direct more light upward, while the second portion has a lower rate to control lateral light distribution. This local optimization of light transmission properties achieves uniform overall illumination.
2Illumination intensity
If eight to twenty-four light-emitting diodes are used, then uniform light emission is achieved, but cost, power consumption, and substrate area occupation increase
Solution Approach 1:
The invention transitions from controlling light distribution solely through the quantity of light-emitting diodes to controlling it through the spatial and optical properties of the light-guiding structure. By varying the light transmission rate in different spatial portions and directions, the system achieves uniform illumination with fewer light sources.
Solution Approach 2:
The light-guiding structure acts as an intermediary between the light-emitting diodes and the final light output. It mediates the light distribution by selectively transmitting and blocking light in different portions, transforming the output from a small number of point sources into uniform circular illumination.
3Device complexity
If only top cover and substrate provide light-shielding effect, then structure is simple, but light loss occurs and brightness of light circle is insufficient
Solution Approach 1:
The light-guiding structure incorporates light-shielding portions at specific locations where light blocking is needed. The first light-guiding portion includes a light-shielding portion to prevent light from reaching the inner peripheral side, while the second light-guiding portion includes a light-shielding portion to prevent light from reaching the outer peripheral side. This localized light shielding reduces light loss without requiring a complete light-shielding enclosure.
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 allows for even light emission from a small number of light-emitting diodes, reducing costs and power consumption while increasing the available substrate area and improving brightness by effectively dispersing and scattering light.
Implementation Method 1
A circular light-guiding structure with specific design features such as light source receiving slots, trenches, and microstructures that diffuse and scatter light uniformly
Implementation Method 2
A circular light-guiding structure with specific design features such as light source receiving slots, trenches, and microstructures that diffuse and scatter light uniformly
Implementation Method 3
a light-reflecting portion (131) disposed around an outer peripheral side of the light-guiding portion (12) in a surrounding manner and having a light-reflecting surface (1311)
Data Source
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AI summary
A circular light-guiding structure is disclosed, comprising a hollow-out portion, a light-guiding portion and a light circle; the light-guiding portion comprising at least three light source receiving slots, at least three trenches and a plurality of microstructures, and the at least three light source receiving slots being arranged at intervals at an inner peripheral side of the light-guiding portion and in communication with the hollow-out portion; the at least three trenches being respectively disposed outside the at least three light source receiving slots, and the microstructures being disposed at bottom surface of the light-guiding portion; the light circle having light transmissibility and comprising a light-reflecting portion and a light-emitting portion; the light-reflecting portion being disposed around an outer peripheral side of the light-guiding portion and having a light-reflecting surface, and the light-emitting portion being disposed above the light-reflecting portion.