EP 0814388 B1 20020904 - Watch glass
Title (en)
Watch glass
Title (de)
Uhrglas
Title (fr)
Glace de montre
Publication
Application
Priority
CH 152996 A 19960619
Abstract (en)
[origin: EP0814388A1] The watch glass (1) consists of a thin plate (2) which is circular and about 2mm thick. The inner face of the glass has blind emplacements (5,15) which are respectively circular and rectangular in section and are formed by grinding or ultrasonic machining. Lens-pieces (10,16) made to the same height as the emplacements (5,15) are introduced into them and secured by an epoxy glue. The thin plate (2) and the magnifying inserts (10,16) may be made of any hard optically transparent material plain or coloured such as glass, spinel or corundum.
IPC 1-7
IPC 8 full level
G04B 39/00 (2006.01)
CPC (source: EP)
G04B 39/008 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0814388 A1 19971229; EP 0814388 B1 20020904; CH 690521 A5 20000929; DE 69715105 D1 20021010; DE 69715105 T2 20030313
DOCDB simple family (application)
EP 97108556 A 19970528; CH 152996 A 19960619; DE 69715105 T 19970528