Perimeter Spaced LED Landscape Light Uniform Illumination
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Solution Overview
Problem
Cluster-based LED pathway and landscape lights suffer from undesirable shadow effects and uneven illumination, resulting in inadequate lighting for walkers due to harsh bright spots and dim areas, which can lead to safety issues with obstructions not being visible.
Innovation Solution
The use of perimeter spaced apart LED light sources arranged in configurations such as triangular, square, or hexagonal patterns around a disc-shaped mount, with a central LED, to provide uniform and 360-degree illumination, eliminating shadow effects and enhancing light distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a cluster of closely spaced LEDs is used as a light source, then the light intensity is increased, but shadow effects and uneven illumination are created
Solution Approach 1:
The patent divides the light source into multiple individual LEDs spaced apart from each other, rather than using a single cluster. This segmentation allows each LED to illuminate different areas independently, eliminating the shadow effects and uneven illumination caused by clustered LEDs while maintaining overall high light intensity through the combined output of multiple LEDs.
2Power
If a cluster of closely spaced LEDs is used, then light emission is concentrated, but harsh bright spots and dim areas are created
Solution Approach 1:
The patent applies local quality by spacing LEDs apart so that each LED provides focused illumination in its specific local area, creating uniform brightness distribution across the ground surface. This prevents the formation of harsh bright spots and dim areas that occur with clustered LEDs, as each spaced-apart LED contributes to overall uniform illumination without creating localized intensity extremes.
3Object-affected harmful factors
If perimeter spaced apart LEDs are used, then uniform illumination is achieved, but the complexity of LED arrangement increases
Solution Approach 1:
The patent transitions from a two-dimensional clustered arrangement to a perimeter-based arrangement that utilizes the dimensional space around the light fixture. By positioning LEDs along the perimeter at spaced intervals, the system achieves uniform 360-degree illumination without the complexity of precise clustering, as the perimeter arrangement naturally distributes light evenly across all directions.
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 softer, more uniform light emissions with increased brightness across the entire ground surface, ensuring thorough illumination and improved safety by eliminating dark spots and harsh bright areas, providing at least equivalent or greater light coverage than traditional cluster-based systems.
Implementation Method 1
LEDS (light emitting diodes) have become increasingly popular over the years as a light source
Implementation Method 2
A light shade lens can have a bottom end attached to a ground engaging post
Data Source
AI summary
Ground directed pathway/landscape lights with perimeter spaced apart LED (light emitting diodes). Disc shaped-mounts have LEDs arranged perimeter edges of a lower face. A shade can have an upper end attached to the lower disc face, and a bottom attached to a post, so light is directed in a 360 degree outwardly expanding direction expanding outward on the ground where the post is in the center of the 360 degree illumination. Another has a single LED on the disc bottom. LEDs can be arranged in different configurations, that include, but not limited to triangular, rectangular, square, hexagon, and the like. The mount can be but not limited to triangular, square, rectangular, hexagon, and the like. Light can be powered by low voltage or solar, and has for uniform light beam emissions without shadow spots and effects.