LED Support Frame with Concave Light Converging Surface
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Solution Overview
Problem
Outdoor LED displays waste energy due to the directional nature of light emission, causing light pollution and inadequate viewing brightness for pedestrians looking up at displays mounted at heights, as most energy is directed upwards and not utilized effectively.
Innovation Solution
An LED support frame with a reflector cup and light converging components on its surface, featuring a concave light converging surface, optionally covered with a reflective material, to redirect and converge light emitted by LED chips, improving light utilization and reducing waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If LED displays are mounted at height for outdoor use, then the display coverage and visibility area are improved, but most light is emitted upward causing energy waste and light pollution
Solution Approach 1:
The patent converts the harmful upward-emitted light into beneficial downward-directed light by using a reflector cup structure. The reflector cup captures light that would otherwise be wasted upward and redirects it downward toward the viewing area, transforming energy loss into useful illumination.
Solution Approach 2:
The patent employs a curved concave light converging surface on the reflector cup to effectively redirect light. The curved geometry is specifically designed to converge scattered light rays into a focused downward direction, maximizing light utilization efficiency.
2Length of moving object
If LED displays are mounted at height, then the display is visible from a distance, but the viewing brightness for pedestrians looking up is insufficient
Solution Approach 1:
The concave curved light converging surface is designed to redirect light downward at optimal angles for pedestrian viewing. This curvature focuses light into a concentrated beam that reaches viewers at ground level, significantly improving viewing brightness while maintaining display distance.
Solution Approach 2:
The patent applies different surface characteristics to different regions: the reflector cup has a specific curved geometry optimized for light convergence, and the light converging component has a concave surface with specific angular properties. These localized geometric features create directional light distribution that enhances viewing brightness in the pedestrian zone.
3Ease of operation
If light is emitted in all directions from LED chips, then the light distribution is uniform, but the light utilization efficiency is low
Solution Approach 1:
The reflector cup structure captures light emitted in upward directions (which would be wasted) and converts it into useful downward-directed light. This transforms the problem of omnidirectional emission into an advantage by collecting light from all angles and redirecting it usefully.
Solution Approach 2:
The curved surfaces of both the reflector cup and the light converging component work together to collect light from multiple angles and converge it into a focused downward beam, significantly improving light utilization efficiency while maintaining adequate distribution.
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 effectively reduces light loss by reflecting and converging light in the visual field, enhancing visible light intensity and reducing light pollution, while allowing for adjustable light direction to optimize viewing angles and energy use.
Implementation Method 1
a concave light converging surface is provided on a side surface of the light converging component adjacent to a cup rim of the reflector cup
Implementation Method 2
light emitted by the LED chip is reflected back upon reaching the light converging surface of the light converging component and then converged in the visual field
Implementation Method 3
the light converging surface is covered with a reflective material layer
Data Source
AI summary
A light emitting diode (LED) support frame (10), LED device adopting the same, and LED display module. The LED support frame (10) comprises a base board (101) and a reflection cup (102). A light converging component (103) is arranged on the reflection cup (102). A concave light converging surface (1030) is provided at a side of the light converging component (103) and adjacent to a reflection cup mouth (1021). A part of a light beam emitted from an LED chip is directed to the light converging surface (1030), reflected by the light converging surface (1030), and finally converged with other light beams emitted from the LED chip to focus at a visual field observed by an observer. Therefore, the embodiment effectively reduces optical loss of lights from different directions in the light converging component (103).