Title:
|
Spectral variability of light-emitting diodes with angle
|
Author:
|
Martínez, Óscar; Vilaseca Ricart, Meritxell; Pizarro Bondia, Carlos; Ferrer, Edgard; Arjona Carbonell, Mª Montserrat; Pujol Ramo, Jaume
|
Other authors:
|
Universitat Politècnica de Catalunya. Departament d'Òptica i Optometria; Universitat Politècnica de Catalunya. GREO - Grup de Recerca en Enginyeria Òptica |
Abstract:
|
Multispectral systems allow the spectral characterization of the scene through several acquisition channels with different
spectral features. The spectral sampling can be done by using transmittance filters and a white light source or illuminating the
scene using light sources with different spectral emission characteristics. Light-emitting diodes based light sources have
started to be used in multispectral systems, mainly to develop low-cost devices for the industry. In this study we analyze the
spectral power distribution and color variability of white and single color light-emitting diodes relative to the viewing angle, and highlight some aspects that must be taken into account if these light sources want to be used in a multispectral system. |
Abstract:
|
Peer Reviewed |
Subject(s):
|
-Àrees temàtiques de la UPC::Ciències de la visió::Instruments òptics i optomètrics -Light emitting diodes -Díodes emissors de llum -LED |
Rights:
|
|
Document type:
|
Article - Published version Conference Object |
Share:
|
|