Efficient light emitting device and method for manufacturing such a device

The invention relates to a light emitting device comprising a primary light source, a light converting medium and an optical structure are disclosed. The invention also relates to a method for manufacturing such a device. The primary light source, e.g. light emitting devices, is arranged for emittin...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SMITS, WIM, FANCSALI, ERNO, BLOEMEN, PASCAL JEAN HENRI
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention relates to a light emitting device comprising a primary light source, a light converting medium and an optical structure are disclosed. The invention also relates to a method for manufacturing such a device. The primary light source, e.g. light emitting devices, is arranged for emitting primary light and is disposed on a substrate. The light converting medium comprising phosphors is arranged for converting at least a part of the primary light to secondary light of a wavelength different from the wavelength of the primary light. The light converting medium is disposed in a second plane at a distance from the first plane, thereby forming a remote phosphor configuration. The optical structure is arranged for receiving a part of the secondary light from the light converting medium and is configured for redirecting the part of the secondary light in a direction towards the first plane and away for the primary light source to enable transmission of the secondary light. By providing an optical structur