Para depositar en Docta Complutense, identifícate con tu correo @ucm.es en el SSO institucional: Haz clic en el desplegable de INICIO DE SESIÓN situado en la parte superior derecha de la pantalla. Introduce tu correo electrónico y tu contraseña de la UCM y haz clic en el botón MI CUENTA UCM, no autenticación con contraseña.
 

High efficiency 90° elbow for light guides

Loading...
Thumbnail Image

Full text at PDC

Publication date

2008

Advisors (or tutors)

Journal Title

Journal ISSN

Volume Title

Publisher

SPIE--The International Society for Optical Engineering
Citations
Google Scholar

Citation

Abstract

Transmission of light through a 90 degrees elbow in a hollow light guide is an important step in the development of natural lighting applications. In this paper we present a new design that has more than 260% higher efficiency in flux transfer than a standard bending system for hollow and aluminum light guides. The clue of this new system is to minimize the light angle at the output of the elbow, in such way that it is possible to guide light at higher distances because of the fewer reflections in the light guide. The system works properly for prismatic light guides but is also suitable for aluminum guides where the reduction of reflections permit the use of cheaper aluminum or the increase in length maintaining flux transfer. Also this reduction of reflections in aluminum light guide derives in less change of chromatic coordinates.

Research Projects

Organizational Units

Journal Issue

Description

© (2008) COPYRIGHT SPIE--The International Society for Optical Engineering. Conference on Nonimaging Optics and Efficient Illumination Systems (5ª. 2008. San Diego, California, EE.UU.).

UCM subjects

Keywords