Independently Driven LED Portions for Adjustable Color Temperature
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Solution Overview
Problem
Conventional light emitting apparatuses are cumbersome and costly to manufacture and mount due to the need for multiple units to achieve varying light emitting intensities and color temperatures, which limits their application and efficiency in different environments.
Innovation Solution
A light emitting apparatus with a first portion emitting white light at 5700K or more and a second portion capable of adjusting color temperature, both independently drivable, allowing for a single package to produce a range of light intensities and temperatures by combining blue light emitting diodes and phosphors, or ultraviolet diodes with red, green, and blue phosphors, and multiple diode chips with different wavelengths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple light emitting apparatuses are manufactured to achieve different color temperatures and light intensities, then the required light emitting performance is achieved, but the manufacturing cost and mounting space increase
Solution Approach 1:
The light emitting apparatus is divided into multiple independent light emitting portions (first, second, third portions) within a single package, each capable of emitting light with different characteristics. This segmentation allows different light types (white, blue, yellow-green) to be generated by separate LED chips, enabling flexible combination to achieve various color temperatures and intensities without requiring multiple separate apparatuses.
Solution Approach 2:
Multiple light emitting portions that would traditionally require separate apparatuses are merged into a single integrated package. The patent combines white light emitting portion, blue light emitting portion, and yellow-green light emitting portion in one unit, allowing them to be controlled together to achieve different color temperatures and light intensities, thereby reducing the number of separate devices needed.
2Adaptability or versatility
If multiple light emitting apparatuses are used to achieve varying light emitting intensities and color temperatures, then the desired light characteristics are achieved, but the mounting space increases
Solution Approach 1:
The light emitting apparatus is divided into multiple independent light emitting portions (first, second, third portions) within a single package, each capable of emitting light with different characteristics. This segmentation allows different light types (white, blue, yellow-green) to be generated by separate LED chips, enabling flexible combination to achieve various color temperatures and intensities without requiring multiple separate apparatuses.
Solution Approach 2:
Multiple light emitting portions that would traditionally require separate apparatuses are merged into a single integrated package. The patent combines white light emitting portion, blue light emitting portion, and yellow-green light emitting portion in one unit, allowing them to be controlled together to achieve different color temperatures and light intensities, thereby reducing the number of separate devices needed.
3Adaptability or versatility
If multiple light emitting apparatuses are manufactured for different uses, then the specific light requirements are met, but the manufacturing cost increases
Solution Approach 1:
The light emitting apparatus is divided into multiple independent light emitting portions (first, second, third portions) within a single package, each capable of emitting light with different characteristics. This segmentation allows different light types (white, blue, yellow-green) to be generated by separate LED chips, enabling flexible combination to achieve various color temperatures and intensities without requiring multiple separate apparatuses.
Solution Approach 2:
The single light emitting apparatus is designed to perform multiple functions by incorporating different types of LED chips (white light, blue light, yellow-green light) that can be independently or simultaneously activated. This multi-functionality allows the device to adapt to different lighting requirements (daytime concentration, nighttime relaxation, plant growth) without requiring separate specialized devices, thereby reducing manufacturing costs.
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
This solution enables a single package to produce daylight and warm white light, enhancing space efficiency and reducing manufacturing costs while allowing for versatile application in various environments by adjusting light intensity and color temperature.
Implementation Method 1
A light emitting diode (LED) is an element in which minority carriers (electrons or holes) are produced using a P-N junction structure of a compound semiconductor and certain light is emitted through recombination of the carriers
Implementation Method 2
a first light emitting portion for emitting white light with a color temperature of 5700K or more
Data Source
AI summary
The present invention provides a light emitting apparatus comprising: a first light emitting portion for emitting white light with a color temperature of 5700K or more; and a second light emitting portion capable of changing the color temperature of the white light emitted from the first light emitting portion, wherein the first and second light emitting portions are independently driven. Accordingly, the present invention has the advantage that it can be diversely applied to desired atmospheres and uses by implementing white light with various light emitting intensities and color temperatures. Further, there is an advantage in that the cumbersomeness in a process is reduced, the space efficiency is enhanced, and the costs are reduced.