Lumiramic™ - A New Phosphor Technology for High Performance Solid State Light Sources

被引：21

作者：

Bechtel, Helmut ^{[1
]}

Schmidt, Peter ^{[1
]}

Busselt, Wolfgang ^{[1
]}

Schreinemacher, Baby S. ^{[1
]}

机构：

[1] Philips Res Europe Aachen, D-52066 Aachen, Germany

来源：

EIGHTH INTERNATIONAL CONFERENCE ON SOLID STATE LIGHTING | 2008年 / 7058卷

关键词：

Lumiramic; phosphor converted LEDs (pcLEDs); ceramic color converter; white LEDs; (Y; Gd)AG:Ce; color targeting; Mie-scattering; EMITTING-DIODES; INORGANIC SCINTILLATORS;

D O I：

10.1117/12.794941

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A new phosphor technology for phosphor converted light-emitting diodes (pcLEDs) is presented. A polycrystalline ceramic plate (Lumiramic (TM)) of Ce (III) doped yttrium gadolinium aluminum garnet (Y,GdAG:Ce) is combined with a blue LED to produce white light in the range of 5000 K correlated color temperature. Scattering and light extraction means of the Lumiramic ceramic color converter plates enable production of reliable and efficient white pcLEDs. Measurement of the optical properties of the Lumiramic plates before the final LED assembly allows pick and place packaging with exact targeting of the desired white color point of the LED. Combination with a red phosphor powder layer, coated onto the Lumiramic plate, results in high quality white pcLEDs with any color temperature required for the general lighting market.

引用

页数：10