EP 0060937 B1 19840926 - ARRANGEMENT FOR REPRESENTING THE RESULT OF COUNT-ON-DRUM COUNTERS IN THE FORM OF ELECTRIC SIGNALS
Title (en)
ARRANGEMENT FOR REPRESENTING THE RESULT OF COUNT-ON-DRUM COUNTERS IN THE FORM OF ELECTRIC SIGNALS
Publication
Application
Priority
CH 179081 A 19810317
Abstract (en)
[origin: EP0060937A1] 1. An arrangement for representing the content of number disc counters in the form of electrical signals, comprising optical markings (16) disposed on the peripheral surface of at least one number disc (11; 12; 13; 21; 23; 25) and a photoelectric sensing means (17) for sensing the markings (16), the sensing means including a light source (18) and light receivers (19), characterised in that associated with each number of the number disc (11; 12; 13; 21; 23; 25) is a single individual marking (16) in the form of a reflection phase diffraction grating or reflection phase hologram for modifying the ray path of the sensing means (17) by optical diffraction, and that each light receiver (19) is receptive of a narrow light beam from the light diffracted at the respective marking (16) lit.
IPC 1-7
IPC 8 full level
G06M 1/272 (2006.01); G06M 3/06 (2006.01)
CPC (source: EP)
G06M 1/272 (2013.01); G06M 3/06 (2013.01)
Designated contracting state (EPC)
AT BE DE FR NL SE
DOCDB simple family (publication)
EP 0060937 A1 19820929; EP 0060937 B1 19840926; AT E9620 T1 19841015; CH 650089 A5 19850628; DE 3166368 D1 19841031
DOCDB simple family (application)
EP 81110234 A 19811208; AT 81110234 T 19811208; CH 179081 A 19810317; DE 3166368 T 19811208