RT Journal Article
T1 Light losses in hollow, prismatic light guides related to prim defects: a transmittance model
A1 García Fernández, Berta
A1 Vázquez Moliní, Daniel
A1 Álvarez Fernández-Balbuena, Antonio
A1 García Botella, Ángel
A1 Martínez Antón, Juan Carlos
AB Hollow, cylindrical, prismatic light guides (CPLGs) are optical components that, using total internal reflection (TIR), are able to transmit high-diameter light beams in daylight and artificial lighting applications without relevant losses. It is necessary to study the prism defects of their surfaces to quantify the behavior of these optical components. In this Letter, we analyze a CPLG made of a transparent dielectric material. Scanning electron microscopy (SEM) and the topographic optical profilometry by absorption in fluids (TOPAF) imaging technique are conducted to determine if there are defects in the corners of the prisms. A model for light guide transmittance that is dependent on prism defects is proposed. Finally, a simulation and an experimental study are carried out to check the validity of the proposed model.
PB OSA Publishing ; Chinese Laser Press
SN 1671-7694
YR 2015
FD 2015-09-10
LK https://hdl.handle.net/20.500.14352/24652
UL https://hdl.handle.net/20.500.14352/24652
LA eng
NO Received March 5, 2015; accepted June 19, 2015; posted online July 27, 2015
NO Ministerio de Economía y Competitividad (MINECO)
DS Docta Complutense
RD 25 dic 2025