Illuminated timepiece display device
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United States of America Patent
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May 17, 2016
Grant Date -
Sep 17, 2015
app pub date -
Sep 20, 2013
filing date -
Oct 4, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A watch includes a mechanical timepiece movement that includes at least one timepiece display device including a mobile timepiece component. The component transmits and diffuses light emitted by at least one light energy source included in the display device. The component is formed of a first material which is silica, or quartz, or single crystal quartz, or glass, or sapphire, or ceramic or material partially transparent to visible or ultraviolet wavelengths, or a transparent or translucent at least partially amorphous material, and of at least a second phosphorescent or fluorescent material applied in a thin layer to at least one of surfaces of the component. The light source, which is active or passive, injects light into one portion of the component which conveys and diffuses the light over at least one portion of the component, or throughout an entirety of the component, to make the component visible in the dark.
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Family
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Cited Art Landscape
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