Invention Grant
- Patent Title: Luminous display device
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Application No.: US16052762Application Date: 2018-08-02
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Publication No.: US10859978B2Publication Date: 2020-12-08
- Inventor: Pierpasquale Tortora
- Applicant: The Swatch Group Research and Development Ltd
- Applicant Address: CH Marin
- Assignee: The Swatch Group Research and Development Ltd
- Current Assignee: The Swatch Group Research and Development Ltd
- Current Assignee Address: CH Marin
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: EP17187011 20170821
- Main IPC: G04B19/30
- IPC: G04B19/30 ; G03H1/22 ; G04B39/00 ; G04B19/10 ; G04B19/22
Abstract:
The present invention concerns a holographic display device incorporated in a timepiece device comprising at least one movable hand, having a light source at its peripheral end, and a watch glass comprising at least one hologram at its periphery, said light source being arranged on the hand so that it reconstructs said hologram when it moves into a predetermined angular sector.
Public/Granted literature
- US20190056696A1 LUMINOUS DISPLAY DEVICE Public/Granted day:2019-02-21
Information query
