TY - JOUR
AU - Lee, Sun-Kyu
AB - Abstract Light-emitting diodes (LEDs) have been investigated to expand their application to very thin electronic devices, including various optical components in a single device. In such applications, the collimation of light produced by LEDs using a conventional Fresnel lens can be bent at angles greater than 45°, whereas most LEDs radiate at solid angles greater than 60°. This paper describes a miniaturized total internal reflection (TIR) Fresnel lens for such miniature optical LED applications. The proposed lens reduces the solid angle of a LED from 60° to 12°, and was designed to have a thickness of less than 1 mm with eleven facets on a single side. The overall geometry of the TIR lens was calculated numerically using Matlab, and the central hyperboloid was designed using Code V.
TI - Miniaturized TIR Fresnel lens for miniature optical LED applications
JO - "International Journal of Precision Engineering and Manufacturing"
DO - 10.1007/s12541-009-0038-8
DA - 2009-04-01
UR - https://www.deepdyve.com/lp/springer-journals/miniaturized-tir-fresnel-lens-for-miniature-optical-led-applications-FPc0tkwKdw
SP - 137
EP - 140
VL - 10
IS - 2
DP - DeepDyve
ER -