Abstract:
Provided is a timepiece including, in addition to a crystal, the following external elements: a back (2), a middle part (1), a dial (3), and two bracelet strands (30), at least one of these external elements includes a body formed of a first portion made of a first opaque material and of a second portion made of a second partially transparent or translucent material. The first material being integral with the second material and the timepiece also includes at least one light source (10) producing light which passes through the second portion made of a partially transparent or translucent ceramic material comprising zirconia.
Abstract:
A mechanical or electromechanical timepiece including a watch case delimiting an internal volume, the watch case including a back delimiting the watch case at the bottom; a crystal closing the watch case at the top, the crystal defining a useful display aperture; a middle part connecting the back and the crystal to one another; a horological movement housed in the internal volume of the watch case; at least one hand for displaying information visible via a useful display aperture and rotated with respect to the watch case by the horological movement with at least one driving belt extending at least partially in the useful display aperture, the timepiece includes the internal volume of the watch case filled with a fluid wherein at least one driving belt is submerged, and wherein the driving belt is made of a material wherein the optical refractive index is equal or substantially equal to that of the fluid.
Abstract:
A timepiece with, in order to regulate the speed of rotation of a rotating wheel set, a regulating device including a microgenerator and an LED powered by the microgenerator without storage of electrical energy and arranged such that, for a range of functional speeds of the rotating wheel set, the corresponding range of frequencies of rotation of the rotor of the microgenerator generates, in its coils, an induced voltage range whose maximum voltage value for the maximum frequency is greater than a threshold voltage, preferably also the minimum voltage value for the minimum frequency, the motor device which drives the rotating wheel set being arranged to have a useful motor torque range allowing the rotating wheel set to be driven within the functional speed range. Also a related method.
Abstract:
The invention relates to a display device (10), in particular for watchmaking, the display device including at least one dial (13) and a first movable body (12), for example a first hand, the first movable body (12) being configured to move relative to the dial (13) so as to indicate a plurality of positions on the dial (13), characterised in that it comprises a light source (18) arranged to emit a light radiation (16) through the dial (13), and in that the first movable body (12) comprises a colour filter (21) allowing modifying the colour of part of the light radiation (17) passing through the first movable body (12), so that the first movable body (12) has a different colour from the dial (13). The invention also relates to a timepiece comprising such a display device (10).
Abstract:
Device for detecting the position of at least a first and a second hand of an electromechanical watch, said first and second hands moving above a dial, the detection device including a single light source emitting a light beam towards the first and second hands, and a first and a second light detection system, the light source and the first and second light detection systems being mounted on or underneath the dial, the light source and the first and second light detection systems being arranged so that, in a determined position of the first hand, the light beam emitted by the light source is reflected by the first hand towards the first detection system, and in a determined position of the second hand, the light beam emitted by the light source is reflected by the second hand towards the second detection system.
Abstract:
Device for detecting and synchronising the position of at least one first wheel (16) of a timepiece mechanism (1) for an electronic analogue watch, wherein this first wheel (16) extends in one plane, the detection and synchronisation device (30) comprises at least one light source (32) emitting a light beam (34) and at least one light detection system (36), and this detection and synchronisation device is characterised in that a first light-reflecting element (40) projects from one of the upper or lower surfaces of the first wheel (16) of the timepiece mechanism (1), wherein the light source (32) and the light detection system (36) are arranged so that in a determined position of the first wheel (16) of the timepiece mechanism (1), the light beam (34) emitted by the light source (32) is reflected by the first reflective element (40) in the direction of the light detection system (36).
Abstract:
A time-limited power generation device (100) for a timepiece (1000), including a manoeuvring member (1) manoeuvrable by a user against an elastic return (2) arranged to indirectly drive an electric generator (6) for generating an electric current for a limited time period, and including a toothed member (3) movable with a degree of freedom relative to said manoeuvring member (1) and delimiting therewith a separate chamber (20) for receiving each elastic return (2), held compressed in its chamber (20) between a pre-stressed position of rest and a maximum compression position, between a first support banking (11) that includes the manoeuvring member (1) and a second support banking (32) that includes the toothed member (3), arranged to be driven by the elastic return (2) for driving the electric generator (6) directly or indirectly through a geartrain.
Abstract:
A method for manufacturing a luminescent hand for a horological movement, preferably for a watch. The method includes providing a support comprising a light guide and structuring an emergent surface of the light guide so as to extract a maximum amount of light from the luminescent hand. The luminescent hand includes, over a lower face, a layer of luminescent material including one or more deposit(s) of fluorescent material, opposite a light source. The light source is laced at locations close to the axis of rotation or away from the axis of rotation but at a distance from the luminescent material. Thus, the light source is not placed on the luminescent hand.
Abstract:
A watch includes a control member which makes it possible to manage one or more electronic functions. The control member includes an optical guide, which extends between a proximal face and a distal face with respect to the middle. A light source is arranged such that it can illuminate the distal face through the optical guide, and an imaging device, including a photodetector, is arranged to capture an image of a portion of the finger of a user of the watch, when they touch the distal face. A processor generates commands based on signals generated by the photodetector, in the way of an optical mouse, for example, to make it possible for the user to browse in a menu displayed on a digital screen.
Abstract:
Device for detecting the position of at least a first and a second hand of an electromechanical watch, said first and second hands moving above a dial, the detection device including a single light source emitting a light beam towards the first and second hands, and a first and a second light detection system, the light source and the first and second light detection systems being mounted on or underneath the dial, the light source and the first and second light detection systems being arranged so that, in a determined position of the first hand, the light beam emitted by the light source is reflected by the first hand towards the first detection system, and in a determined position of the second hand, the light beam emitted by the light source is reflected by the second hand towards the second detection system.