Omnidirectional LED Bulb for Solar Lamp Illumination
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Solution Overview
Problem
Incandescent light bulbs in outdoor solar lamps are inefficient due to high power consumption and short lifespan, and traditional LED light sources have a hemispherical emission pattern that can result in dark spots, limiting their use as replacements.
Innovation Solution
A solar-powered LED light bulb with a transparent or translucent housing, mounted on a pole, featuring a top and side solar photovoltaic panel system for energy collection, low-voltage electrical components, and LEDs arranged on a substrate to provide omnidirectional illumination, mimicking the structure of incandescent bulbs with adjustable mounting patterns and reflectors for optimal light distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If incandescent light bulbs are used in outdoor solar lamps, then they emit light in all directions providing uniform illumination, but they draw significant power and have short lifespan
Solution Approach 1:
The LED light source is segmented into multiple individual LEDs arranged in a three-dimensional configuration around the bulb center, with each LED oriented to emit light in different directions (upward, downward, sideways), collectively achieving omnidirectional illumination that replaces the single incandescent bulb
Solution Approach 2:
The patent transitions from traditional two-dimensional LED panel arrangements to a three-dimensional spatial configuration of multiple LEDs positioned at different heights and radial distances from the bulb center, creating omnidirectional light emission in vertical, horizontal, and diagonal directions simultaneously
2Illumination intensity
If incandescent light bulbs are used in outdoor solar lamps, then they provide light in all directions, but their lifetime is shortened due to high power consumption
Solution Approach 1:
The patent replaces the thermal radiation mechanism of incandescent bulbs with electroluminescence in LEDs, which convert electrical energy directly to light without generating excessive heat, thereby dramatically extending operational lifetime while maintaining omnidirectional illumination through multi-LED spatial arrangement
3Use of energy by moving object
If traditional LED light sources are used to replace incandescent bulbs, then power consumption is reduced and lifetime is extended, but their hemispherical emission pattern creates dark spots
Solution Approach 1:
The patent employs asymmetric positioning of LEDs at different radial distances and heights from the bulb center, with varying orientation angles, creating a non-uniform spatial distribution that collectively produces symmetric omnidirectional illumination coverage when viewed from all directions around the bulb
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 provides efficient, long-lasting, and environmentally friendly lighting with uniform illumination, reducing power consumption and extending bulb life, while eliminating dark spots through omnidirectional LED emission and optimized energy harvesting.
Implementation Method 1
a solar energy collecting portion mounted on the light fixture, the solar energy collecting portion including a top solar photovoltaic panel and side solar photovoltaic panels for collecting and converting incident solar energy to electricity
Implementation Method 2
at least one LED light bulb mounted on the base... the at least one LED light bulb includes one or more LED lights mounted on a substrate
Data Source
AI summary
A lamp includes a light fixture mounted on a pole. The light fixture includes a transparent or translucent housing, and a solar energy collecting portion mounted on the light fixture. The solar energy collecting portion includes a top solar photovoltaic panel and side solar photovoltaic panels for collecting and converting incident solar energy to electricity. An electrical power source is mounted on the solar energy collecting portion. At least one LED light bulb is mounted on the base. The LED light bulb includes one or more LED lights mounted on a substrate provided with electrical wiring and housed in a transparent or translucent bulb enclosure. The substrate is mounted at one end of a slender stem.