Compact LED Package with Segmented Array and Diffusing Particles
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional lighting fixtures face challenges in achieving high light intensity within a compact volume, as existing solutions often compromise on brightness or size due to limitations in light-emitting diode (LED) packaging and arrangement.
Innovation Solution
A lighting apparatus is designed with a package structure of less than 5000 mm³ that encloses light-emitting units, featuring a board with strategically arranged LEDs and a circuit structure, allowing for efficient light distribution and intensity enhancement through optimized packaging and circuit design, including the use of diffusing particles to improve light scattering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional LED packaging and arrangement is used, then device complexity is reduced and ease of manufacture is improved, but light intensity and volume efficiency deteriorate
Solution Approach 1:
The lighting apparatus divides the light-emitting function into multiple discrete LED units arranged on a circuit board, with each LED contributing to the overall light output. This segmentation allows for optimized light distribution within the compact package while achieving high total lumens output greater than 150 lumens from the enclosed LED array
Solution Approach 2:
The patent utilizes three-dimensional spatial arrangement of multiple LEDs on the circuit board within the compact package structure. By optimizing the vertical and horizontal positioning of LEDs and incorporating light-diffusing elements, the design achieves high light intensity in a limited volume by effectively utilizing all available spatial dimensions
2Illumination intensity
If LED density is increased to achieve higher light intensity, then illumination improves, but heat generation and thermal management become more difficult
Solution Approach 1:
The patent introduces thermal management intermediaries including heat sinks and thermally conductive materials between the high-density LED array and the package housing. These intermediary elements facilitate efficient heat transfer from the concentrated LED sources to the surrounding environment, managing thermal loads generated by high-density LED arrangements
3Volume of moving object
If compact packaging is implemented to reduce volume, then portability improves, but light distribution and intensity uniformity deteriorate
Solution Approach 1:
The patent employs light-diffusing elements as intermediary components between the LED sources and the external environment. These diffusers scatter and redistribute light rays, creating uniform light distribution across the illumination area while maintaining the compact package volume under 5000 mm³
Solution Approach 2:
The circuit board and package structure incorporate locally optimized light-diffusing features at specific positions to address non-uniform light distribution. By varying the diffusing properties at different locations within the compact package, the design achieves homogeneous light output despite the constrained volume
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 apparatus achieves a light intensity greater than 150 lumens while maintaining a compact form factor, with improved light distribution and efficiency due to the specific arrangement and packaging of LEDs and circuit components.
Implementation Method 1
The light-emitting diodes (LEDs) of the solid-state lighting elements have the characteristics of low power consumption, low heat generation, long operational life, shockproof, small volume, quick response and good opto-electrical property like light emission with a stable wavelength
Implementation Method 2
including the use of diffusing particles to improve light scattering
Data Source
AI summary
A light-emitting unit, having a substrate; a first light-emitting body formed on the substrate, and having a first longer side and a first shorter side; a second light-emitting body formed on the substrate, and having a second longer side and a second shorter side which is parallel to the first longer side; a third light-emitting body formed on the substrate, having a third longer side and a third shorter side which is parallel to the first longer side, and electrically connected to the first light-emitting body and the second light-emitting body; a first electrode covering the first light-emitting body and the second light-emitting body, and electrically connecting to the first light-emitting body; a second electrode separated from the first electrode, and covering the second light-emitting body without covering the first light-emitting body; and a transparent element enclosing the first light-emitting body, the second light-emitting body, and the third light-emitting body.