EP 1519250 A1 20050330 - Thermally compensated balance-hairspring resonator
Title (en)
Thermally compensated balance-hairspring resonator
Title (de)
Spiralfeder-Unruh-Resonator mit Thermokompensation
Title (fr)
Résonateur balancier-spiral thermocompensé
Publication
Application
Priority
EP 03021787 A 20030926
Abstract (en)
The resonator has an elastic spiral with coils and formed from a quartz mono crystal, and a balancer with a moment of inertia. The spiral is engraved in a precut plate (3) such that the height of the coils forms an angle with a cryptographic axis, after rotating around an x-axis, to adapt the thermal property of the spiral to that of the balancer. An independent claim is also included for a method of manufacturing a resonator.
Abstract (fr)
Le spiral est structuré par photolithographie et gravure dans une lame préalablement découpée dans un monocristal de quartz de sorte que la hauteur h des spires forment avec l'axe cristallographique z un angle θ permettant d'adapter le comportement thermique du spiral à celui du balancier en réduisant ainsi l'écart de marche du aux variations de température. <IMAGE>
IPC 1-7
IPC 8 full level
G04B 17/06 (2006.01); G04B 17/22 (2006.01); G04B 18/04 (2006.01)
CPC (source: EP KR US)
G04B 17/222 (2013.01 - EP KR US); G04B 18/04 (2013.01 - KR)
Citation (applicant)
EP 0732635 A1 19960918 - SUISSE ELECTRONIQUE MICROTECH [CH]
Citation (search report)
- [XAY] EP 0732635 A1 19960918 - SUISSE ELECTRONIQUE MICROTECH [CH]
- [Y] EP 1302821 A2 20030416 - FRANCK MULLER WATCHLAND SA [CH]
- [A] US 2003011119 A1 20030116 - IMAI MASATO [JP]
Designated contracting state (EPC)
CH DE FR GB IT LI
DOCDB simple family (publication)
EP 1519250 A1 20050330; EP 1519250 B1 20100630; CN 100483271 C 20090429; CN 1601402 A 20050330; DE 60333191 D1 20100812; HK 1073697 A1 20051014; JP 2005106819 A 20050421; JP 4805560 B2 20111102; KR 20050030558 A 20050330; TW 200512553 A 20050401; TW I372952 B 20120921; US 2005068852 A1 20050331; US 7503688 B2 20090317
DOCDB simple family (application)
EP 03021787 A 20030926; CN 200410080124 A 20040923; DE 60333191 T 20030926; HK 05106159 A 20050721; JP 2004279139 A 20040927; KR 20040075712 A 20040922; TW 93128448 A 20040920; US 94385504 A 20040920