Patent ID: 9342050
Filing Date: 2016-05-17
CPC Classification: G04B

Claim Text:
1. A watch comprising: a mechanical timepiece movement which includes at least one timepiece display device, the display device including at least one mobile component deforming due to a function thereof during operation of the movement, the mobile component being a slender, elastic component whose function is related to its elastic nature, wherein the mobile component transmits and diffuses light emitted by at least one light energy source comprised in the timepiece display device, and wherein the mobile component includes at least one elastic and deformable portion, and diffusion of light through the mobile component varies with stresses in the elastic and deformable portion, wherein the mobile timepiece component is formed of a first material which is silica, or quartz, or single crystal quartz, or glass, or sapphire, or ceramic, or a 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 mobile component, and wherein the light energy source, which is active or passive, is configured to inject light into one portion of the mobile component which conveys and diffuses the light over at least one portion of the mobile component, or throughout an entirety of the mobile component, to make the mobile component visible in the dark.