Invention Grant
- Patent Title: Moving indicator for an analogue display device
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Application No.: US17091163Application Date: 2020-11-06
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Publication No.: US11340557B2Publication Date: 2022-05-24
- 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: Sughrue Mion, PLLC
- Priority: EP19220169 20191231
- Main IPC: G04B19/32
- IPC: G04B19/32 ; F21V8/00

Abstract:
A moving indicator for an analogue display device, in particular for a timepiece. The indicator includes a multi-layer part including an opaque metal layer and a transparent light guide layer and forming a body and a head of the indicator. The head is centred relative to a rotational axis of the indicator and arranged to receive a luminous flux on the bottom face thereof. A fluorescent material is arranged on the transparent light guide layer at the head of the indicator to absorb at least part of said luminous flux and to re-emit a second luminous fluorescence flux in the transparent light guide layer. Other aspects comprise a set of indicators, a display device and a watch comprising one or more moving indicators.
Public/Granted literature
- US20210200155A1 MOVING INDICATOR FOR AN ANALOGUE DISPLAY DEVICE Public/Granted day:2021-07-01
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