Outdoor Lamp LED Groups for Color Gradient and Luminous Flux
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Solution Overview
Problem
Conventional color-changing outdoor lamps using RGB LEDs require low luminous flux to achieve a noticeable color-changing effect, limiting their effectiveness in providing sufficient illumination and visual impact.
Innovation Solution
An outdoor lamp design that incorporates a printed circuit board assembly (PCBA) with LED groups comprising both white/warm white LEDs and RGB LEDs, where the LED driver controls the simultaneous or individual emission of light from these LEDs to increase luminous flux and create a color gradient effect, enhancing both illumination and color-changing visual impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If RGB LEDs are driven with high luminous flux to provide sufficient illumination, then the illumination intensity is improved, but the color-changing effect becomes less obvious
Solution Approach 1:
The LED light module is segmented into multiple LED groups, where each group contains both RGB LEDs and white/warm white LEDs. This segmentation allows independent control of illumination function (white LEDs) and color-changing function (RGB LEDs), resolving the contradiction between high luminous flux and obvious color-changing effect.
Solution Approach 2:
The patent merges RGB LEDs and white/warm white LEDs into the same LED groups on a single PCBA. This combination allows the system to simultaneously achieve high illumination (through white LEDs) and obvious color-changing effects (through RGB LEDs), as both types of LEDs work together in a coordinated manner.
2Adaptability or versatility
If RGB LEDs are used alone for color-changing outdoor lamps, then the color-changing effect is achieved, but the luminous flux is insufficient
Solution Approach 1:
The LED light module achieves multi-functionality by integrating both RGB LEDs (for color-changing) and white/warm white LEDs (for illumination) into the same system. This universal design allows the outdoor lamp to simultaneously provide sufficient illumination and impressive color-changing effects, overcoming the limitations of using RGB LEDs alone.
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 increases the luminous flux of the LED light module, allowing for a more noticeable color-changing effect while maintaining sufficient illumination, thereby overcoming the limitations of conventional outdoor lamps.
Implementation Method 1
The LED driver drives and controls each of the white/warm white LED and the RGB LED to emit light simultaneously or individually
Implementation Method 2
the luminous flux of the LED light module is increased through the white light/warm white light emitted by the white/warm white LED
Implementation Method 3
When the RGB LED emits light in a fixed color manner or in a color-changing manner, the luminous flux of the LED light module is increased through the white light/warm white light emitted by the white/warm white LED, thereby overcoming the problem of dusk because the luminous flux of the conventional outdoor lamp is not enough. With the configuration of the number of white/warm white LEDs and RGB LEDs, the colored light is presented in a gradient effect.
Data Source
AI summary
An outdoor lamp capable of changing colors includes a support member, a lamp holder disposed on the support member, and an LED light module disposed in the lamp holder. The LED light module includes at least one PCBA (printed circuit board assembly) arrayed with a plurality of LED groups. Each of the LED groups is composed of at least one white/warm white LED and at least one RGB LED adjacent to each other. Each of the white/warm white LED and the RGB LED can emit light simultaneously or individually. When the RGB LED emits light to change colors, the luminous flux of the entire LED light module can be improved by the aid of the white/warm white LED, and a color gradient effect is generated.