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Characterization and control of a multi-primary LED light lab.

Michael J Murdoch

|December 10, 2017

Summary

Researchers developed a new light lab to study human visual adaptation to changing light. The lab uses advanced LED technology and a color model for precise lighting control and accurate color rendition measurements.

Area of Science:

Lighting research
Human visual perception
Color science

Background:

Temporal dynamic lighting research requires advanced control systems.
Accurate spectral modeling is crucial for precise color reproduction.
Human visual adaptation to changing light conditions is not fully understood.

Purpose of the Study:

To establish a new light laboratory for studying human visual adaptation.
To develop and validate a multi-primary additive color model for precise lighting control.
To compare different spectral tuning strategies for optimized lighting solutions.

Main Methods:

Commissioning of a five-channel LED luminaire system with high bit-depth control (16 bits per channel) via DMX.
Development of a multi-primary additive color model based on spectral measurements.

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Evaluation of spectral tuning and multi-primary solutions using accuracy metrics and IES TM-30-15 color rendition data.

Main Results:

A highly accurate multi-primary additive color model was successfully implemented.
The model allows for optimization of lighting solutions based on spectral accuracy, color fidelity, and gamut.
Comparative analysis of different spectral tuning methods demonstrated varying performance in color rendition and accuracy.

Conclusions:

The new light lab provides a powerful platform for investigating human visual adaptation to dynamic lighting.
The developed color model offers advanced control for spectral accuracy and color quality in lighting applications.
Further research can leverage this facility to explore the impact of dynamic lighting on visual perception and performance.