Color composition by radiometric and photometric calibration of LEDs: Theory and experiment

被引：0

作者：

Santos, Lucas Fugikawa ^{[1
]}

Pereira, Clayton Jose ^{[1
]}

机构：

[1] Univ Estadual Paulista Julio de Mesquita Filho Sa, Dept Fis, Sao Paulo, SP, Brazil

来源：

REVISTA BRASILEIRA DE ENSINO DE FISICA | 2013年 / 35卷 / 02期

关键词：

light-emitting diodes; radiometric calibration; fotometric calibration; CIE coordinates; color composition; picture elements;

D O I：

暂无

中图分类号：

G40 [教育学];

学科分类号：

040101 ; 120403 ;

摘要：

In the present work, the basic concepts of radiometric, photometric and colorimetric calibration are presented, which were applied to three light-emitting diodes (LEDs) used to compose the different color sensations that the human eye perceives in the visible region of the electromagnetic spectrum. In this sense, an experimental setup comprising a LED drive circuit and a home-made integrating sphere was assembled for the initial radiometric and photometric calibration as well as to obtain a set of intensity and spectral combinations associated to different colorimetric CIE (Commission Internationale de l'Eclairage) coordinates. The reader can, therefore, understand, in a simple manner, the process of color composition inside a color monitor or display picture element (pixel).

引用

页数：8