Multi-dimensional LED Device with Mixed Light Sources
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current LED-based white light production methods face challenges in achieving low cost, low power consumption, and good color rendering, particularly in standardized power supply systems.
Innovation Solution
A multi-dimensional light-emitting device is designed with a carrier, a blue light-emitting diode array, and second optoelectronic elements such as red and green light-emitting diodes, where the materials, structures, and light colors are varied to produce mixed light with specific color temperatures, utilizing wavelength converters and heat dissipation structures to optimize light efficiency and color rendering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If blue LED array with wavelength converter is used to produce white light, then power consumption is reduced, but color rendering is insufficient
Solution Approach 1:
The patent combines multiple light sources (blue LED array with wavelength converter and red/green LED arrays) into a single illumination system. This merging allows the device to achieve both energy efficiency from LEDs and superior color rendering by mixing lights of different wavelengths, resolving the contradiction between power consumption and color rendering quality.
Solution Approach 2:
The patent uses composite light generation by combining light from blue LEDs with wavelength converters (phosphors) and light from red/green LEDs. This composite approach creates a mixed light output that maintains low power consumption while achieving excellent color rendering properties that single-source LEDs cannot provide alone.
2Illumination intensity
If multiple optoelectronic elements with different materials and structures are used, then color rendering is improved, but device complexity increases
Solution Approach 1:
The patent divides the illumination device into distinct functional regions: a first region containing blue LED array with wavelength converter, and second regions containing red and green LED arrays. This segmentation allows each region to be optimized independently for its specific light emission function, simplifying the design and manufacturing of each component while achieving complex overall color rendering performance.
Solution Approach 2:
Different regions of the device use different optoelectronic elements with specific materials and structures tailored to emit specific colors. The blue LED region uses phosphor converters, while red and green regions use corresponding LED chips. This local optimization of quality in different regions achieves superior overall color rendering without requiring uniform complexity throughout the entire device.
3Productivity
If optoelectronic elements are arranged on different elevations, then light mixing efficiency is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent transitions from a two-dimensional planar arrangement to a three-dimensional structure by placing optoelectronic elements on different elevations (first region and second regions at different heights). This dimensional change enables more effective light mixing and reduces mutual interference between different color lights, improving overall light efficiency while the modular design helps manage manufacturing precision requirements.
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 low power consumption and good color rendering by mixing lights from different optoelectronic elements, allowing for a range of color temperatures and luminous efficiencies, effectively addressing the limitations of existing LED technologies.
Implementation Method 1
a blue light-emitting diode array and a first wavelength converter such as a phosphor, a semiconductor, and a dye. The blue light-emitting diode array includes blue light-emitting diode chips
Implementation Method 2
The first wavelength converter can be overlaid on the blue light-emitting diode array
Implementation Method 3
at least part of the second optoelectronic elements can emit a second light which can be mixed with the first light to produce a mixed light
Implementation Method 4
a first wavelength converter such as a phosphor, a semiconductor, and a dye
Data Source
AI summary
The present application provides a multi-dimensional light-emitting device electrically connected to a power supply system. The multi-dimensional light-emitting device comprises a substrate, a blue light-emitting diode array and one or more phosphor layers. The blue light-emitting diode array, disposed on the substrate, comprises a plurality of blue light-emitting diode chips which are electrically connected. The multi-dimensional light-emitting device comprises a central area and a plurality of peripheral areas, which are arranged around the central area. The phosphor layer covers the central area. When the power supply system provides a high voltage, the central area and the peripheral areas of the multi-dimensional light-emitting device provide a first light and a plurality of second lights, respectively. The first light and the second lights are blended into a mixed light.