Optical characteristics of spherical glass encapsulated LEDs

Nobuhiro NAKAMURA; Minoru SEKINE; Shuji MATSUMOTO; Kazunari WATANABE; Naoki SUGIMOTO

doi:10.2109/jcersj2.116.1075

Journal of the Ceramic Society of Japan

Online ISSN : 1348-6535
Print ISSN : 1882-0743
ISSN-L : 1348-6535

Papers

Optical characteristics of spherical glass encapsulated LEDs

Nobuhiro NAKAMURA, Minoru SEKINE, Shuji MATSUMOTO, Kazunari WATANABE, Naoki SUGIMOTO

Author information

Keywords: LED, Glass, Out-coupling, Encapsulation, Spherical Lens

JOURNAL FREE ACCESS

2008 Volume 116 Issue 1358 Pages 1075-1078

DOI https://doi.org/10.2109/jcersj2.116.1075

Details

Abstract

A glass material and a spherical glass encapsulation process for LEDs were developed. An LED encapsulated by the spherical glass exhibits high directional characteristic and emits collimated lights. This glass encapsulated LEDs are potent for light sources for displays such as portable projection systems and LCD back lights.

Content from these authors

Favorites & Alerts

Corresponding author

Register with J-STAGE for free!