CIE 1931 web-based app

By E H H Hasabeldaim

Department of Physics, University of the Free State, Bloemfontein, 9300, South Africa

Published 2021

Abstract

An online and interactive CIE 1931 chromaticity diagram app was successfully developed. This app can be used by scientist and professionals in different fields including luminescent materials, color science and technology, color related product design or anyone interested in color space. The color gamut was constructed based on the data obtained by commission internationale de l'eclairage 1931. The color matching functions were used to calculate the CIE coordinates X, Y, and Z.

User guidance video

Features

This app allow the user to

1. upload data in text format (comma/ tab delimited ).
2. Calculate the X Y coordinates and the color corelated temperature (CCT).
3. Add multiple CIE points on the CIE diagram.
4. Configure the diagram layout including the axis width, color, font, font size.
5. Save the final diagram as png file format.

Necessary information for accurate calculations:

1. The color matching function (data) used is 1931 2 deg.
2. Data wavelength range from 360 to 830 nm.
3. User data wavelength interval can be 1 nm, 2 nm, or 5 nm for the best estimate. However, any wavelenth interval will give reasonable estimate
4. You may use text/csv file depending on you browser.
5. Download test file from Here.txt or Here.csv

ACKNOWLEDGMENTS
This work is based on the research supported by the South Africa research chair initiative of the Department of Science and Technology and the National Research Foundation

By using the software you are obliged to cite the Article:
E. H. H. Hasabeldaim, H. C. Swart, and R. E. Kroon “Luminescence and stability of Tb doped CaF2 nanoparticles” RSC Adv. 13 (2023) 5353-5366. https://doi.org/10.1039/D2RA07897J