US 12,235,611 B2
Watch glass with a decorative element
Michael Bonke, Oberwil bei Zug (CH)
Assigned to REALIZATION DESAL AG, Oberwil (CH)
Appl. No. 17/631,202
Filed by Realization Desal AG, Oberwil bei Zug (CH)
PCT Filed Apr. 29, 2021, PCT No. PCT/EP2021/061339
§ 371(c)(1), (2) Date Jan. 28, 2022,
PCT Pub. No. WO2021/224116, PCT Pub. Date Nov. 11, 2021.
Claims priority of application No. 10 2020 112 523.2 (DE), filed on May 8, 2020.
Prior Publication US 2022/0276612 A1, Sep. 1, 2022
Int. Cl. G04B 39/00 (2006.01); A44C 17/02 (2006.01); G04B 19/12 (2006.01); G04B 47/04 (2006.01)
CPC G04B 39/002 (2013.01) [A44C 17/0258 (2013.01); G04B 47/042 (2013.01); G04B 19/12 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A watch glass, comprising:
a first glass,
a second glass, and
a decorative element that is a gemstone,
wherein the first glass and the second glass are connected to one another via a connecting intermediate layer,
wherein the first glass comprises a continuous recess,
wherein the decorative element comprises a base region, which is arranged in the recess settingless and in direct contact with the connecting intermediate layer,
wherein the decorative element comprises an additional region, which extends beyond the first glass, and
wherein a ratio of a length of the base region of the decorative element in the thickness direction of the glasses to a length of an overhang of the additional region in the direction perpendicular to the thickness direction is selected such that reflectable light from the base region is totally reflectable at an inner surface of an upper surface of the first glass, and/or that at least a part of the light which enters the first glass does not reach the base region.