EP 2907169 A2 20150819 - LED PACKAGE WITH MULTIPLE ELEMENT LIGHT SOURCE AND ENCAPSULANT HAVING PLANAR SURFACES
Title (en)
LED PACKAGE WITH MULTIPLE ELEMENT LIGHT SOURCE AND ENCAPSULANT HAVING PLANAR SURFACES
Title (de)
LED-GEHÄUSE MIT EINER LICHTQUELLE AUS MEHREREN ELEMENTEN UND KAPSELUNGSMASSE MIT FLACHEN OBERFLÄCHEN
Title (fr)
BOÎTIER DE DIODES ÉLECTROLUMINESCENTES PRÉSENTANT UNE PLURALITÉ DE SOURCES LUMINEUSES ÉLÉMENTAIRES ET ÉLÉMENT D'ENCAPSULATION PRÉSENTANT DES SURFACES PLANES
Publication
Application
Priority
- US 201213649052 A 20121010
- US 201213649067 A 20121010
- US 201313770389 A 20130219
- US 2013062640 W 20130930
Abstract (en)
[origin: WO2014058641A2] LED packages are disclosed that are compact and efficiently emit light, and can comprise encapsulants with planar surfaces that refract and/or reflect light within the package encapsulant. The packages can comprise a submount with one or a plurality of LEDs. In packages with a plurality of LEDs, each LED can emit the same or different wavelengths of light. A blanket conversion material layer can be included on at least some of the LEDs and the submount. The encapsulant with planar surfaces can be on the submount, over at least some of the LEDs, with the planar surfaces causing total internal reflection of light within the package. TIR light within the encapsulant can reach the conversion material, where it can be absorbed and emitted omnidirectionally. TIR light can now escape from the encapsulant and allow for efficient emission and a broader emission profile when compared to conventional packages with hemispheric encapsulants.
IPC 8 full level
H01L 33/54 (2010.01); H01L 33/24 (2010.01); H01L 33/50 (2010.01)
CPC (source: CN EP US)
H01L 33/24 (2013.01 - CN EP US); H01L 33/54 (2013.01 - CN EP); F21V 9/00 (2013.01 - EP US); H01L 33/505 (2013.01 - CN EP); H01L 33/508 (2013.01 - CN EP); H01L 2924/0002 (2013.01 - CN EP)
Citation (search report)
See references of WO 2014058641A2
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2014058641 A2 20140417; WO 2014058641 A3 20140710; CN 104737313 A 20150624; EP 2907169 A2 20150819
DOCDB simple family (application)
US 2013062640 W 20130930; CN 201380053182 A 20130930; EP 13774900 A 20130930