Combined Multicolored and White LED Lamp Design
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Solution Overview
Problem
Existing multicolored LED lamps struggle to produce a consistent and achromatic white light, as achieving pure white emission with red, green, and blue LEDs is difficult due to process variations and color tint issues, resulting in non-uniform white light output.
Innovation Solution
A combined LED lamp design incorporating a multicolored LED lamp and a white LED lamp, where the white LED is mechanically connected to the multicolored LED lamp, utilizing semiconductor dies that emit various spectral frequencies, including a dedicated white LED die to produce a consistent achromatic white light, and using separate leads or encoded signals to control the color emission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a multicolored LED lamp uses red, green, and blue LEDs to produce white light, then the lamp can emit a full spectrum of visible colors, but the white light output is non-uniform and colored due to process variations and color tint issues
Solution Approach 1:
The invention separates the white light generation function from the multicolored LED by using a dedicated white LED die, while the RGB LED handles only color emission. This segmentation allows each component to specialize in its function, resolving the contradiction between color versatility and white light consistency.
Solution Approach 2:
The invention introduces a yellow phosphor coating on the white LED die as an intermediary that converts blue light from the white LED into yellow light, which then combines with the blue light to produce achromatic white light. This intermediary mechanism ensures consistent white light output independent of RGB LED variations.
2Reliability
If a single white LED die is used to produce white light, then the white light can be consistent and achromatic, but the lamp cannot produce a full spectrum of visible colors
Solution Approach 1:
The invention merges a white LED lamp (providing consistent achromatic white light) with a multicolored LED lamp (providing full spectrum color emission) into a single combined device. This merging allows the system to simultaneously achieve both white light consistency and color versatility by activating different LED components based on the desired output.
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 combined LED lamp achieves a full spectrum of visible colors and a uniform, consistent achromatic white light, overcoming the challenges of achieving bright and pure white light in traditional RGB LED setups.
Implementation Method 1
Light emitting diodes (LEDs) have provided an alternative to standard incandescent lighting systems. LEDs consume considerably less electrical power than incandescent bulbs because of the high efficiency of LEDs in converting electrical energy into photons.
Implementation Method 2
a plurality of light emitting diodes having different colors that are encapsulated in a lens material, to form a multicolored light emitting diode lamp
Data Source
AI summary
Disclosed is a combined light emitting diode lamp that utilizes a multicolored light emitting diode that is capable of creating a full spectrum of colors. Attached to the multicolored lamp is a white light emitting diode lamp that provides a bright white signal that is consistent from one combined LED lamp to another.