Composite Light Source Panels for Constant Far-Field Color
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Solution Overview
Problem
Conventional luminaires focus on aesthetic appeal and indirect lighting, neglecting the design of light-emitting devices, which can appear uninteresting when directly viewed, and struggle to maintain consistent color and luminance in ambient lighting.
Innovation Solution
A composite light source system that includes multiple illumination panels emitting complementary colors and varying luminous intensities, controlled to produce a constant far-field photometric distribution of a target color, such as 'white', while allowing individual panels to display discernible colors and luminance variations over time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If multiple illumination panels of different colors are used to create aesthetic visual interest, then the direct view appearance is improved, but the far-field photometric distribution becomes inconsistent
Solution Approach 1:
The system dynamically adjusts the luminous intensity parameters of individual illumination panels over time while maintaining their complementary color relationships. This allows the direct view appearance to change aesthetically while the far-field photometric distribution remains substantially constant through coordinated parameter modifications across multiple panels.
Solution Approach 2:
The controller monitors the combined light output of complementary color panels and adjusts individual panel intensities to maintain a constant far-field photometric distribution. This feedback mechanism ensures that as individual panels vary in intensity for visual interest, the overall projected light remains stable and consistent.
2Shape
If individual illumination panels vary luminous intensity over time for visual interest, then aesthetic appeal is improved, but maintaining constant combined luminous intensity becomes more complex
Solution Approach 1:
The controller systematically varies the luminous intensity parameters of individual illumination panels according to predetermined patterns or user-selected options. This controlled parameter variation creates visually interesting temporal changes in the direct view appearance while the coordinator maintains the constant combined intensity constraint.
Solution Approach 2:
The coordinator circuit is designed to work with multiple different configurations of illumination panels and color combinations. It provides universal control functionality that handles various panel arrangements and color schemes while consistently maintaining the constant combined luminous intensity requirement across all operating modes.
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 system provides aesthetically interesting direct views while maintaining consistent ambient lighting, ensuring the far-field color and luminance remain constant, even as individual panels change, thus addressing the need for both visual appeal and reliable illumination.
Implementation Method 1
one or more first illumination panels that emit light of a first color and one or more second illumination panels that emit light of a second color
Implementation Method 2
The first color and the second color are complementary to each another, such that a far field photometric distribution produced by the composite light source is of a target color that is intermediate to the first color and the second color
Data Source
AI summary
A composite light source includes a plurality of illumination panels, that emit light of a fixed color and a variable luminous intensity. Over time, the luminous intensities of at least two of the illumination panels vary, while a combined luminous intensity of the illumination panels remains about constant. Another composite light source includes a plurality of illumination panels that emit light. Each illumination panel of at least a first subset of the plurality of illumination panels emits the light with a first luminous intensity, and each illumination panel of at least a second subset of the plurality of illumination panels emits the light with a second luminous intensity that is different from the first luminous intensity.