Merit function for the evaluation of color uniformity in the far field of LED spot lights

Teupner, Anne; Bergenek, Krister; Wirth, Ralph; Miñano Dominguez, Juan Carlos y Benitez Gimenez, Pablo (2014). Merit function for the evaluation of color uniformity in the far field of LED spot lights. En: "Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XVIII", 01/02/2014, San Francisco, California, EE.UU. pp. 1-8. https://doi.org/10.1117/12.2043545.

Descripción

Título: Merit function for the evaluation of color uniformity in the far field of LED spot lights
Autor/es:
  • Teupner, Anne
  • Bergenek, Krister
  • Wirth, Ralph
  • Miñano Dominguez, Juan Carlos
  • Benitez Gimenez, Pablo
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XVIII
Fechas del Evento: 01/02/2014
Lugar del Evento: San Francisco, California, EE.UU
Título del Libro: Proceedings of the SPIE
Título de Revista/Publicación: LIGHT-EMITTING DIODES: MATERIALS, DEVICES, AND APPLICATIONS FOR SOLID STATE LIGHTING XVIII
Fecha: 2014
Volumen: 9003
Materias:
Palabras Clave Informales: LED, color uniformity, color blending, optical systems,color perception
Escuela: E.T.S.I. Telecomunicación (UPM)
Departamento: Electrónica Física
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

Texto completo

[img]
Vista Previa
PDF (Document Portable Format) - Se necesita un visor de ficheros PDF, como GSview, Xpdf o Adobe Acrobat Reader
Descargar (498kB) | Vista Previa

Resumen

The scope of the present paper is the derivation of a merit function which predicts the visual perception of LED spot lights. The color uniformity level Usl is described by a linear regression function of the spatial color distribution in the far field. Hereby, the function is derived from four basic functions. They describe the color uniformity of spot lights through different features. The result is a reliable prediction for the perceived color uniformity in spot lights. A human factor experiment was performed to evaluate the visual preferences for colors and patterns. A perceived rank order was derived from the subjects’ answers and compared with the four basic functions. The correlation between the perceived rank order and the basic functions was calculated resulting in the definition of the merit function Usl. The application of this function is shown by a comparison of visual evaluations and measurements of LED retrofit spot lamps. The results enable a prediction of color uniformity levels of simulations and measurements concerning the visual perception. The function provides a possibility to evaluate the far field of spot lights without individual subjective judgment. © (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.

Más información

ID de Registro: 36075
Identificador DC: http://oa.upm.es/36075/
Identificador OAI: oai:oa.upm.es:36075
Identificador DOI: 10.1117/12.2043545
Depositado por: Memoria Investigacion
Depositado el: 29 Jul 2015 17:18
Ultima Modificación: 29 Jul 2015 17:18
  • Open Access
  • Open Access
  • Sherpa-Romeo
    Compruebe si la revista anglosajona en la que ha publicado un artículo permite también su publicación en abierto.
  • Dulcinea
    Compruebe si la revista española en la que ha publicado un artículo permite también su publicación en abierto.
  • Recolecta
  • e-ciencia
  • Observatorio I+D+i UPM
  • OpenCourseWare UPM