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US 11,256,217 B2Granted
Watch including a device for measuring the degree of relative humidity inside the watch case
AssigneeThe Swatch Group Research and Development Ltd
InventorPierpasquale Tortora
Life of this patent
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Abstract
A watch including a watch case, wherein the watch case includes a device for measuring the degree of humidity inside the watch, wherein the device for measuring the degree of humidity is a fibre optic device including a measuring optical fibre, the measuring optical fibre includes a portion configured such that the refractive index of said portion changes in the presence of water vapour inside the watch case.
Claims21
A watch comprising a watch case, wherein the watch case comprises a device for measuring a degree of relative humidity inside the watch;
- wherein said device for measuring the degree of relative humidity is a fibre optic device including a measuring optical fibre, said optical fibre including a portion configured such that a refractive index of said portion changes in a presence of water vapour inside the watch case.
Dependencies are inferred from the claim text.