LED Unit of Compact, High Power and Long Lifetime

The encapsulation optical component shaped in an elliptical dome over the LED chip and the mixing of multiple types of fluorescent materials in an appropriate ratio improves colour rendering properties and distribution controllability while suppressing colour variation. The developed technologies ca...

Full description

Saved in:
Bibliographic Details
Published inJournal of Light & Visual Environment Vol. 32; no. 2; pp. 196 - 201
Main Authors SUGIMOTO, Masaru, URANO, Yoji, KUZUHARA, Ikko, HAYASHI, Takao, MASUI, Mikiko, TANAKA, Ken-ichi
Format Journal Article
LanguageEnglish
Published Tokyo The Illuminating Engineering Institute of Japan 2008
Japan Science and Technology Agency
Subjects
compact
CRI
GaN
high power
InGaN
LED
life
luminaire
unit
white
Online AccessGet full text

Cover

More Information
Summary:The encapsulation optical component shaped in an elliptical dome over the LED chip and the mixing of multiple types of fluorescent materials in an appropriate ratio improves colour rendering properties and distribution controllability while suppressing colour variation. The developed technologies can be applied to produce an LED luminaire that resembles a compact ceiling-light but can be used as a downlight with the light intensity equivalent to a 60W incandescent lamp and light quality comparable to a fluorescent lamp.
ISSN:0387-8805
1349-8398
DOI:10.2150/jlve.32.196