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US 11,262,029 B2Granted
Lighting device having semiconductor light source and at least one incandescent filament
AssigneeOSRAM Beteiligungsverwaltung GmbH
InventorSebastian Jooss
Life of this patent
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Abstract
A lighting device includes at least one semiconductor light source, at least one incandescent filament configured to emit electromagnetic radiation when energized, and a carrier supporting both the semiconductor light source and the incandescent filament. A screen is defined by the carrier between the semiconductor light source and the incandescent filament, so as to shield the semiconductor light source from the electromagnetic radiation emitted by the incandescent filament. The incandescent filament connected in series with the at least one semiconductor light source.
Claims20
A lighting device comprising:
- at least one semiconductor light source;
- at least one electrical resistance element comprising an incandescent filament operable, when energized, to emit electromagnetic radiation;
- and
- a common carrier on which the at least one semiconductor light source and the at least one resistance element are disposed,
- wherein the at least one resistance element is connected in a series circuit with the at least one semiconductor light source, and
- wherein a portion of the common carrier defines a screen disposed between the at least one resistance element and the at least one semiconductor light source so as to shield the at least one semiconductor light source from the electromagnetic radiation emitted by the incandescent filament.
3 more elements
Dependencies are inferred from the claim text.