Invention Grant
- Patent Title: Automotive solid-state retrofit headlamp
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Application No.: US17907060Application Date: 2021-03-22
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Publication No.: US11761601B2Publication Date: 2023-09-19
- Inventor: Christian Seichter , Kevin Bayer , Hans Guenter Mayer , Ralf Lindner
- Applicant: OSRAM GmbH
- Applicant Address: DE Munich
- Assignee: OSRAM GmbH
- Current Assignee: OSRAM GmbH
- Current Assignee Address: DE Munich
- Agency: Slater Matsil, LLP
- Priority: DE 2020203736.1 2020.03.23
- International Application: PCT/EP2021/057252 2021.03.22
- International Announcement: WO2021/191139A 2021.09.30
- Date entered country: 2022-09-22
- Main IPC: F21S41/153
- IPC: F21S41/153 ; F21S41/33 ; F21S41/365 ; F21S41/143

Abstract:
In an embodiment an automotive solid-state headlamp includes a lamp body extending in a longitudinal direction, the lamp body having a rear base portion and a front portion and including a support member disposed in a light-transmissive housing, a plurality of solid-state light sources arranged on the support member at the rear base portion of the lamp body, and a drive circuitry electrically coupled to the light sources and arranged at the rear base portion of the lamp body and configured to operate the plurality of light sources when energized, wherein the plurality of light sources, when energized, are configured to cause the solid-state lamp to emit, through the light-transmissive housing (a) a luminous flux of at least 1500 lumens +/−10% when energized with a 13.2 Volt test voltage, or of at least 1750 lumens +/−10% when energized with a 28 Volt test voltage, or (b) a luminous flux of at least 1350 lumens +/−10% when energized with a 13.2 Volt test voltage, or of at least 1600 lumens +/−10% when energized with a 28 Volt test voltage.
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