Invention Grant
- Patent Title: Lighting device having semiconductor light source and at least one incandescent filament
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Application No.: US17273835Application Date: 2019-07-23
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Publication No.: US11262029B2Publication Date: 2022-03-01
- Inventor: Sebastian Jooss
- Applicant: OSRAM Beteiligungsverwaltung GmbH
- Applicant Address: DE Grünwald
- Assignee: OSRAM Beteiligungsverwaltung GmbH
- Current Assignee: OSRAM Beteiligungsverwaltung GmbH
- Current Assignee Address: DE Grünwald
- Agent Edward S. Podszus
- Priority: DE102018215128.8 20180906,DE102018221236.8 20181207
- International Application: PCT/EP2019/069849 WO 20190723
- International Announcement: WO2020/048676 WO 20200312
- Main IPC: F21S41/14
- IPC: F21S41/14 ; F21K9/232 ; F21K9/235 ; F21S45/60 ; F21S41/13 ; F21S41/162 ; F21S41/148 ; F21S45/47 ; F21Y115/10

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.
Public/Granted literature
- US20210317955A1 LIGHTING DEVICE HAVING AT LEAST ONE SEMICONDUCTOR LIGHT SOURCE Public/Granted day:2021-10-14
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