Abstract: A device for controlling the atmosphere in a space (16) which is partly delimited by at least one glass component (12, 13; 61) and which is separated from the environment (17, 18), with at least one connection between the space and the environment, and with at least one electrically actuatable valve (32, 33; 47, 48) associated with the connection, which valve is connected to an electric control unit (24); the valve (32, 33; 47, 48) is arranged in a connecting passage (34) within a member (15A) delimiting the space (16), namely in the case of an insulating glass assembly (11), a connecting ledge (15) arranged between two glass panes (12, 13) or, in the case of a lamp (60), in a socket (64), and the control unit (24) provided for an automatic actuation of the valve is also arranged in said member (15A).

Abstract: A device for controlling the atmosphere in a space (16) which is partly delimited by at least one glass component (12, 13; 61) and which is separated from the environment (17, 18), with at least one connection between the space and the environment, and with at least one electrically actuatable valve (32, 33; 47, 48) associated with the connection, which valve is connected to an electric control unit (24); the valve (32, 33; 47, 48) is arranged in a connecting passage (34) within a member (15A) delimiting the space (16), namely in the case of an insulating glass assembly (11), a connecting ledge (15) arranged between two glass panes (12, 13) or, in the case of a lamp (60), in a socket (64), and the control unit (24) provided for an automatic actuation of the valve is also arranged in said member (15A).

Abstract: In a room lighting system (1; 27), e.g. an architectural lighting system, including two alignedly arranged refractive elements (9, 10) whose centers are substantially located in the beam axis (11) of a light source (7) and one (10) of which is mounted to be rotatable about said beam axis (11), also the other refractive element (9) is mounted to be rotatable about said beam axis (11), wherein drive means (18, 19; 13 to 17) plus control means (20) are associated with to the two refractive elements (9, 10) for selective rotation in the same sense or in opposite senses, and both of the refractive elements (9, 10) are prism elements, wherein at least the two refractive prism elements (9, 10) are arranged in a common housing (2; 28).

Abstract: In a room lighting system (1; 27), e.g. an architectural lighting system, including two alignedly arranged refractive elements (9, 10) whose centers are substantially located in the beam axis (11) of a light source (7) and one (10) of which is mounted to be rotatable about said beam axis (11), also the other refractive element (9) is mounted to be rotatable about said beam axis (11), wherein drive means (18, 19; 13 to 17) plus control means (20) are associated with to the two refractive elements (9, 10) for selective rotation in the same sense or in opposite senses, and both of the refractive elements (9, 10) are prism elements, wherein at least the two refractive prism elements (9, 10) are arranged in a common housing (2; 28).