US 12,306,591 B2
Watch comprising an optical filtering element
Edoardo Franzi, Cheseaux-Noréaz (CH); Andrea Dunbar, Saint-Blaise (CH); and Patrick Stadelmann, Boudry (CH)
Assigned to OMEGA SA, Biel/Bienne (CH)
Appl. No. 17/782,759
Filed by Omega SA, Biel/Bienne (CH)
PCT Filed Dec. 9, 2020, PCT No. PCT/EP2020/085360
§ 371(c)(1), (2) Date Jun. 6, 2022,
PCT Pub. No. WO2021/116220, PCT Pub. Date Jun. 17, 2021.
Claims priority of application No. 19214444 (EP), filed on Dec. 9, 2019.
Prior Publication US 2023/0004128 A1, Jan. 5, 2023
Int. Cl. G04G 17/08 (2006.01); G02B 5/20 (2006.01); G04B 37/02 (2006.01)
CPC G04G 17/083 (2013.01) [G02B 5/208 (2013.01); G04B 37/02 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A watch comprising:
a bracelet;
a watch case including at least one electrical or electronic component;
at least one Dewar device configured to enclose said at least one electrical or electronic components, and comprising inner and outer walls and a vacuum or quasi-vacuum space defined between the inner and outer walls, the inner wall delimiting a volume in which said at least one electrical or electronic component is arranged; and
an optical filtering element defined in only a part of a visible outer face of said case, said filtering element being capable of transmitting only the visible electromagnetic spectrum,
wherein the Dewar device comprises two thin inner and outer walls, the inner wall nested inside the outer wall, the inner wall delimiting the volume inside which the or each electrical or electronic component is arranged, the outer wall which is arranged on the outer side of the watch, the vacuum or quasi-vacuum space separating the inner wall from the outer wall.