Invention Grant
- Patent Title: Lighting device for vehicles having a primary and secondary hologram
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Application No.: US17255718Application Date: 2019-06-27
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Publication No.: US11339943B2Publication Date: 2022-05-24
- Inventor: Petr Vojtisek
- Applicant: Carl Zeiss Jena GmbH
- Applicant Address: DE Jena
- Assignee: Carl Zeiss Jena GmbH
- Current Assignee: Carl Zeiss Jena GmbH
- Current Assignee Address: DE Jena
- Agency: Kusner & Jaffe
- Priority: DE102018115574.3 20180628
- International Application: PCT/EP2019/067122 WO 20190627
- International Announcement: WO2020/002491 WO 20200102
- Main IPC: G02B5/32
- IPC: G02B5/32 ; F21S43/20 ; F21S43/235 ; G02B5/18 ; F21V8/00 ; G02B27/42
Abstract:
The invention relates to a lighting device for motor vehicles. Said lighting device comprises a primary hologram for providing a lighting function when the primary hologram is illuminated with illumination light. The illumination light is directed towards the primary hologram via a secondary hologram system which comprises a coupling-in hologram, a waveguide substrate and a coupling-out hologram.
Public/Granted literature
- US20210270441A1 LIGHTING DEVICE FOR VEHICLES Public/Granted day:2021-09-02
Information query
