US 11,720,065 B2
Device for measuring a horological component
Mathieu Amstutz, Les Brenets (CH); Rowan Luthi, Bienne (CH); Christian Mougin, Bienne (CH); Olivier Perrinjaquet, Savagnier (CH); and Yves Salvadé, Saint Imier (CH)
Assigned to ROLEX SA, Geneva (CH)
Filed by ROLEX SA, Geneva (CH)
Filed on Jun. 9, 2021, as Appl. No. 17/343,049.
Claims priority of application No. 20181027.2 (EP), filed on Jun. 19, 2020.
Prior Publication US 2021/0397136 A1, Dec. 23, 2021
Int. Cl. G01B 13/00 (2006.01); G04D 7/00 (2006.01); G01B 11/02 (2006.01); G01B 11/08 (2006.01); G01B 13/04 (2006.01); G01B 13/08 (2006.01)
CPC G04D 7/00 (2013.01) [G01B 11/02 (2013.01); G01B 11/08 (2013.01); G01B 13/04 (2013.01); G01B 13/08 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A device for measuring a horological component, wherein the device comprises:
(a) a measurement cell comprising:
(i) a measurement channel extending in a longitudinal direction and filled with a liquid, capable of displacing a horological component;
(ii) outer faces that are flat and parallel pairwise,
(b) at least two optical systems arranged opposite at least a part of the outer faces of the measurement cell at a measurement zone of the measurement cell, each of the optical systems comprising:
(iii) a light emitter suitable for emitting a collimated light in a predefined wavelength or a defined polarization in the direction of the measurement channel through an outer face of the measurement cell, so as to be able to illuminate a horological component present and being displaced in the measurement channel in the measurement zone, and
(iv) an optical sensor associated with the light emitter for receiving at least a part of the light emitted by the light emitter,
the at least two optical systems comprising light emitters operating in different respective wavelengths or polarizations,
(c) a driver unit, capable of driving the optical systems and of processing digital data obtained from the optical systems, configured to implement calculations of at least one dimension of a horological component.