Optoelectronic arrangement to recognize defined contrast pattern marks on either side of object fed between deflection mirrors

摘要

Emitted light beams (8) deflected from deflection mirror (9) contact at least two stationary deflection mirrors (18,19). They contact first deflection mirror (18) inside section ( DELTA alpha 1) of angle ( DELTA alpha ) and contact second deflection mirror (19) inside second section ( DELTA alpha 2) of angle ( DELTA alpha ). The marked object (14) in the detection plane is fed in between the two mirrors so light fed from mirrors detects mark (2). Mirrors are parallel to detection plane of object.