Sick Ag

Helmut Weber

Florian Schneider

Christoph Anselment

Ralf Ulrich Nübling

Sascha Steinkogler

Stefan Seitz

Dirk Strohmeier

Wolfram Runge

Jürgen Reichenbach

Johannes Aschenbrenner

Christofer Roser

Martin Högy

Norbert Schnurr

A polygon scanner () for detecting objects () in a monitored zone () is provided having a light transmitter (); having a light receiver (); having an evaluation unit (); and having a rotatable mirror unit () for a periodic deflection of the light beam () that has a plurality of mirror facets () in order thus to scan an angular section multiple times per rotation of the mirror unit () by a respective mirror facet (), wherein at least some of the mirror facets () have a different curvature from one another. In this respect, at least one of the mirror facets () is configured as a free-form surface whose curvature is adapted to the angle of incidence of the transmitted light beam () on the mirror facet () that varies during the rotation of the mirror unit ().

Polygon scanner and method of detecting objects in a monitored zone

An apparatus () for deflecting and for widening a visible range of a camera () is provided, wherein the apparatus () has a first mirror element () which is tilted with respect to the optical axis of the camera () in a longitudinal direction in order to supply light to the camera () from a visible range lying laterally with respect to the optical axis. In this connection the first mirror element () is additionally tilted in a transverse direction perpendicular to the longitudinal direction and the apparatus has a second mirror element () besides the first mirror element () which is tilted in the longitudinal direction and in the transverse direction with respect to the first mirror element ().

Apparatus for deflecting and for widening a visible range

The invention relates to an image acquisition apparatus, in particular a camera, for the identification of objects, comprising a focusable optical receiving system and an illumination unit including an object illumination and/or positioning illumination, wherein the object illumination and/or positioning illumination is adjustable and can hereby be matched to the focus of the optical receiving system, and wherein the object illumination and/or positioning illumination is coupled to the optical receiving system such that an adjustment of the focus of the optical receiving system automatically effects a matching of the object illumination and/or positioning illumination to the adjusted focus.

Image acquisition apparatus

A code reader comprising an integrated light source for the illumination of a reading region, a sensor matrix and an optical receiving system positioned in front of the latter, wherein the light emergence surface of the light source is located in or closely in front of the depth of field zone of the optical receiving system.

Code reader

The invention relates to an optoelectronic sensor comprising an integrated arrangement of a plurality of light emitting diodes arranged in the region of an optical receiving system for the illumination of a sensing region, with beam-shaping optical elements being associated with the light emitting diodes. The beam-shaping optical elements have optical properties which differ from one another and are dependent on their relative position to the optical receiving system. Furthermore, the beam-shaping optical elements have a wedge shape, with in each case precisely one wedge element or regions of up to four adjacent wedge elements being associated with the light emitting diodes.

Growing community of inventors

Emmendingen, Germany

Helmut Weber