Abstract: The invention relates to an explosion-protected housing for means for transmitting and/or receiving electromagnetic radiation. The housing comprises a housing body that is configured to receive such transmission and/or reception means and a window element having a first side that faces the housing interior and an opposite second side that faces away from the housing interior, wherein the window element transmits electromagnetic radiation. The housing body has a flanging on the second side of the window element, said flanging pressing the window element in the direction of a seat that is formed in the interior of the housing such that the housing is formed as a pressure-resistant housing and/or as a dust-tight housing.

Abstract: The invention relates to an explosion-protected housing for means for transmitting and/or receiving electromagnetic radiation (2, 2a, 2b). The housing comprises a housing body (1) that is configured to receive such transmission and/or reception means (2, 2a, 2b) and a window element (5) having a first side (7) that faces the housing interior and an opposite second side (6) that faces away from the housing interior, wherein the window element (5) transmits electromagnetic radiation. The housing body (1) has a flanging (11) on the second side (6) of the window element (5), said flanging pressing the window element (5) in the direction of a seat (13) that is formed in the interior of the housing such that the housing is formed as a pressure-resistant housing and/or as a dust-tight housing.

Abstract: The invention relates to a housing for a detection unit for optically detecting smoke particles. The detection unit has a light source for emitting radiation to be scattered by smoke particles to be detected and a light detector for detecting the scattered radiation. The housing 2 has a cylindrical outer surface 7 having smoke openings 8 through which the smoke particles enter housing 2, and a radially symmetric light-guiding structure 9 with guide members. The guide members are so designed that adjacent guide members each form a guide channel through which the radiation emitted from the light source and not scattered by the smoke particles is guidable to the outside in the direction of the smoke openings 8 by multiple reflection. Higher detection sensitivity for optically detecting smoke particles can be achieved as a result.

Abstract: The invention relates to an explosion-protected housing for means for transmitting and/or receiving electromagnetic radiation (2, 2a, 2b). The housing comprises a housing body (1) that is configured to receive such transmission and/or reception means (2, 2a, 2b) and a window element (5) having a first side (7) that faces the housing interior and an opposite second side (6) that faces away from the housing interior, wherein the window element (5) transmits electromagnetic radiation. The housing body (1) has a flanging (11) on the second side (6) of the window element (5), said flanging pressing the window element (5) in the direction of a seat (13) that is formed in the interior of the housing such that the housing is formed as a pressure-resistant housing and/or as a dust-tight housing.