OPTISK AVSOKNINGSANORDNING FOR AVSOKNING AV OPTISKT LESBARA TECKEN PA ETT FOREMAL I ETT AVSOKNINGSPLAN

摘要

An optical scanner mechanism, especially for optically discernible characters associated with or applied to articles, for scanning each article by means of a bundle of scanning light rays which in accordance with the rotational- or oscillating movement of a part of a beam deflection mechanism for further transmitting the bundle of light rays scans a surface or plane determined by guide means. A bundle of light rays emanating from a light source is directed by optical means against a reflecting surface of the beam deflecting mechanism. The bundle of scanning light rays reflected by this reflecting surface is transmitted towards a concave mirror or reflector by means of a torus-shaped meniscus lens arranged intermediate the beam deflecting mechanism and the concave mirror. The bundle of scanning light rays or beam reflected by the concave mirror is focused by the latter in a plane determined by the guide means.