Abstract: A method and a sensor arrangement for monitoring a protective field on a system is shown and described. The protective field is formed by a light grid. The light grid is created by a plurality of light beams. When an object enters the protective field, the protective field is divided into a first, a second and a tolerance range, wherein the second range is defined by all but the outermost light beams interrupted by the object and a first range is present at all times. After release of an interrupted light beam in the second range, a shutdown signal is generated if not all light beams in the protective field are free after the predefined first time period.

Abstract: An optical device includes a beam-forming element made of a first material with a base surface and a top surface, which are opposite one another, and with a surrounding lateral surface, which connects the base surface and the top surface to one another. The optical device includes a support body made of a second material, which is formed with a receptacle for the beam-forming element and has at least one common contact surface with the lateral surface. The first material and the second material are in direct contact with each other. The first material is permeable to, and the second material is absorbent to, a defined electromagnetic radiation. A defined refractive index (n2) of the second material is set in a defined ratio to a defined refractive index (n1) of the first material in order to set a specific transition characteristic for the defined electromagnetic radiation at the contact surface.

Abstract: A device for detecting objects in a monitoring range is described, comprising a sensor and an emitter, wherein the emitter includes the following components: a housing, a radiation source for emission of electromagnetic rays and a radiation-conducting device, which is designed to conduct the rays on their path from the radiation source to the point of exit from the emitter, wherein the radiation-conducting device has a focusing element for focusing the rays. The radiation-conducting device is designed to deflect the rays on their path from the radiation source to the point of exit from the emitter by two reflections.

Abstract: A light curtain component comprising a housing which extends essentially along a longitudinal direction, and having a plurality of optoelectronic emission or reception elements which are arranged in the housing and are oriented toward an upper side of the housing, and which are separated from one another along the longitudinal direction. The housing comprises, on a front side, a first planar front surface which is arranged at an angle (?) of less than 90°, preferably equal to 45°, with respect to the longitudinal direction. This first planar front surface allows joining two such light curtain components flush with one another in a corner, without undesired formation of dead or blind zones taking place.

Abstract: A light curtain component comprising a housing which extends essentially along a longitudinal direction, and having a plurality of optoelectronic emission or reception elements which are arranged in the housing and are oriented toward an upper side of the housing, and which are separated from one another along the longitudinal direction. The housing comprises, on a front side, a first planar front surface which is arranged at an angle (?) of less than 90°, preferably equal to 45°, with respect to the longitudinal direction. This first planar front surface allows joining two such light curtain components flush with one another in a corner, without undesired formation of dead or blind zones taking place.

Abstract: A device for detecting objects in a monitoring range is described, comprising a sensor and an emitter, wherein the emitter includes the following components: a housing, a radiation source for emission of electromagnetic rays and a radiation-conducting device, which is designed to conduct the rays on their path from the radiation source to the point of exit from the emitter, wherein the radiation-conducting device has a focusing element for focusing the rays. The radiation-conducting device is designed to deflect the rays on their path from the radiation source to the point of exit from the emitter by two reflections.