Light emitting device
AssigneeAvago Technologies ECBU IP (Singapore) Pte. Ltd.
InventorsSiang Ling Oon, Ju Chin Poh, Boon Keat Tan
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Abstract
A light emitting device is disclosed herein which includes a substrate, a housing, a light emitting die, and a cup with a reflective inner surface. The housing has an upper surface and at least one sidewall and is mounted on the upper surface of the substrate, thereby forming a cavity. The light emitting die is mounted on the upper surface of the substrate within the cavity. The cup is positioned within the cavity and is supported by the housing. The cup has a continuous sidewall with a reflective inner surface surrounding the light emitting die and a lowermost edge that is suspended above, detached and spaced away from the upper surface of the substrate.
Claims22
A light emitting device, comprising:
- a substrate having an upper surface;
- a housing having an upper surface and at least one sidewall, wherein the housing is mounted on the substrate thereby forming a cavity;
- a light emitting die mounted on the upper surface of the substrate within the cavity;
- a cup positioned within the cavity and supported by the housing, the cup having a continuous sidewall with a reflective inner surface surrounding the light emitting die and a lowermost edge that is suspended above, detached and spaced away from the upper surface of the substrate, wherein;
- the light emitting die has an upper surface through which light is emitted and a height that is measured from the upper surface of the substrate to the upper surface of the light emitting die;
- and
- a distance that the lowermost edge of the cup is spaced away from the upper surface of the substrate is less than the height of the light emitting die.
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A light emitting device, comprising:
- a substrate having an upper surface;
- a housing having an upper surface and at least one sidewall, wherein the housing is mounted on the upper surface of the substrate thereby forming a cavity;
- a light emitting die mounted on the upper surface of the substrate within the cavity;
- a cup positioned within the cavity, the cup having an upper lip supported by the upper surface of the housing, a continuous sidewall with a reflective inner surface surrounding the light emitting die, and a lowermost edge that is suspended above, detached and spaced away from the upper surface of the substrate, wherein the upper lip surrounds an open top, and the lowermost edge circumferentially surrounds an open bottom;
- wherein the sidewall of the housing has an inner surface and the sidewall of the cup has an outer surface, and the inner surface of the sidewall of the housing closely conforms to the outer surface of the sidewall of the cup.
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A light emitting device comprising:
- a first substrate having an upper surface;
- a light emitting die mounted on the upper surface with a light emitting portion thereof positioned at a first height above the upper surface;
- a housing mounted on the upper surface and having a cavity therein positioned in circumscribing relationship with the light emitting die;
- a tubular reflector cup disposed in the cavity and having a lowermost edge positioned in spaced relationship with the upper surface at a second height thereabove that is less than the first height.
Dependencies are inferred from the claim text.