Abstract: The invention relates to an optoelectronic sensor arrangement (1), with a plurality of optical transmitters (21, 22) positioned side by side in an optical transmitter strip (12), such that each optical transmitter (21, 22) transmits the light of a transmitted cone (?1, ?2) into a surveillance area (50), and with a plurality of optical receivers (31, 32) positioned side by side in an optical receiver strip (14), which optical receivers (31, 32) receive the light of a received cone (?1, ?2) from the surveillance area (50), where each receiver (31, 32) exhibits a laterally-resolving element (41, 42), such that each optical transmitter (21, 22) and optical receiver (31, 32) form an optical receiver/transmitter pair, and a control unit contains means for determining the optical incident point (L1, L1?, L2, L3) on one of the optical receivers (31, 32) of the transmitted cone (?1, ?2) of each optical transmitter (21, 22) and/or of a foreign light source (G1).

Abstract: A light grid which has a housing made from an extruded profile. An electronic component plate is movably insertable into the interior of the housing and carries the optical components of an emitter unit or a receiver unit, respectively. The housing has a support plate and an intermediate web which connect spaced-apart side walls of the profile and include openings. The support plate also has openings into which corresponding optical function elements are inserted. The openings in the intermediate webs serve as apertures. To precisely align the component plate with the optoelectronic components thereon relative to the housing, positioning pins are inserted through openings in the support plate and the intermediate web and which further engage locating holes in the component plate.

Abstract: A strip-like housing of a light grid has two side walls that extend over its entire housing length and that are joined together by cross braces. The cross braces form a honeycomb structure, in which the transmitting and receiving elements of the light grid are installed.

Abstract: A light grid which has a housing made from an extruded profile. An electronic component plate is movably insertable into the interior of the housing and carries the optical components of an emitter unit or a receiver unit, respectively. The housing has a support plate and an intermediate web which connect spaced-apart side walls of the profile and include openings. The support plate also has openings into which corresponding optical function elements are inserted. The openings in the intermediate webs serve as apertures. To precisely align the component plate with the optoelectronic components thereon relative to the housing, positioning pins are inserted through openings in the support plate and the intermediate web and which further engage locating holes in the component plate.

Abstract: A strip-like housing of a light grid has two side walls that extend over its entire housing length and that are joined together by cross braces. The cross braces form a honeycomb structure, in which the transmitting and receiving elements of the light grid are installed.

Abstract: A method and apparatus for the monitoring of areas with several light emitters arranged alongside each other, which emit light along a light emitter cone, and several light receivers arranged alongside each other, which receive light from a light receiver cone. The emitters and receivers form several interacting pairs which can be activated individually, in temporal succession (sequentially) and/or cyclically by a control unit during a monitoring mode of operation. The distance of the light emitters from the corresponding light receivers is determined during a distance determining mode of operation from the number of light emitters visible to a light receiver and/or from the number of light receivers seeing a light emitter.

Abstract: A tube (1) is shown for coupling with, in particular, optical transmitter and/or receiver elements (2), and with means for suppressing interfering radiation, in which the means for suppressing interfering radiation consist of multiply reflecting surfaces (15) which absorb interfering radiation and which are formed by a plurality of ribs (11) which respectively extend substantially along a plane extending through the optical axis of the tube (1).