Title:
改善された光放射率プロファイルを備えるLED
Document Type and Number:
Japanese Patent JP2008503891
Kind Code:
A
Abstract:
An LED includes a substrate layer with a first surface and a second surface opposing the first surface and having a refractive index of n1. A light emitter is provided on the first surface and an array of particles is arranged on the second surface. The index matching layer between the particles on the second surface has a refractive index of n2being n2≧n1−0.5 and n2≰n1+3. Further, the filling height of the index matching layer is lower than the maximum height of the array of particles.
Inventors:
Bertram Dietrich
Bechtel Helmut
Busselt Wolfgang
Grinell Horst
Bechtel Helmut
Busselt Wolfgang
Grinell Horst
Application Number:
JP2007517620A
Publication Date:
February 07, 2008
Filing Date:
June 21, 2005
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
F21S10/00; H01L33/54; F21Y101/02; H01L33/56
Domestic Patent References:
| JP2004513484A | 2004-04-30 | |||
| JPS5671986A | 1981-06-15 |
Attorney, Agent or Firm:
Susumu Tsugaru
Akihiko Miyazaki
Fueda Shusen
Akihiko Miyazaki
Fueda Shusen