Optical coin sensing station

Details Optical coin sensing station Optical coin sensing station

G - Physics

07

D

G07D 9/00 (2006.01) G07D 5/00 (2006.01) G07D 5/02 (2006.01) G07F 9/00 (2006.01)

Patent

CA 2200564

In a coin sensing station, coins pass edgewise along a passageway (10) through a transparent block (9) and interrupt three optical sensing beams (34, 37, 38) that transverse the passageway at spaced locations. The beams are produced by light emitting diodes (18, 19) which direct light into the block (9) where it is directed by reflection from inclined surfaces (29, 32, 36, 40, 33, 28) integrally moulded into the block. Beam splitters (32, 33) direct part of the beams (30, 31) as beams (34, 38), across the passageway and the remainder forms beam (37).

Dans un poste de détection optique pour pièces de monnaie, des pièces passent sur leur chant le long d'un passage (10) au travers d'un bloc transparent (9) et coupent trois faisceaux de détection optique (34, 37, 38) qui traversent ce passage en des points espacés. Ces faisceaux proviennent de diodes électroluminescentes (18, 19) qui dirigent leur lumière dans ce bloc (9) où elle est réfléchie par des surfaces inclinées (29, 32, 36, 40, 33, 28) montées d'un seul tenant dans ce bloc. Des diviseurs de faisceaux (32, 33) orientent une partie des faisceaux (30, 31), sous forme de faisceaux (34, 38), transversalement au passage, et le reste devient le faisceau (37).

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