Abstract: An infrared device comprises a substrate. A configuration for emitting infrared radiation is supported by the substrate. The configuration comprises an electrically conducting layer arrangement of less than 50 nm thickness between dielectric layers. In addition, a heater arranged for heating the configuration to emit the infrared radiation is supported by the substrate.

Abstract: Method and system of calibrating a sensor system which comprises sensor A and sensor B. Sensor A has a transmitter TXA for emitting a signal STXA and a receiver RXA for receiving a signal SRXA, wherein RXA and TXA operate independently in a radar mode of sensor A. Sensor B has a transmitter TXB, a receiver RXB, and a unit D, which is used to connect TXB to RXB in a transponder mode of sensor B, with the result that a signal SRXB received by RXB is emitted again by TXB as a signal STXB. A gain Gcon,B between signal SRXB and signal STXB is predefined. In a radar mode of sensor B, TXB is not connected to RXB, with the result that TXB and RXB operate independently. Emitted signals may be radar, light, or acoustic signals. The method and system can calibrate radar systems, lidar systems, or sonar systems.

Abstract: An infrared device comprises a substrate. A configuration for emitting infrared radiation is supported by the substrate. The configuration comprises an electrically conducting layer arrangement of less than 50 nm thickness between dielectric layers. In addition, a heater arranged for heating the configuration to emit the infrared radiation is supported by the substrate.

Abstract: The invention relates to a method for calibrating an active sensor system which comprises at least one active sensor A and one active sensor B. The term “active” indicates that the sensors A and B actively emit signals. The sensor A has a transmitter TXA for emitting a signal STXA and a receiver RXA for receiving a signal S RXA, wherein the receiver RX A and the transmitter TXA operate independently of one another to the greatest possible extent in a radar mode of the sensor A. The sensor B has a transmitter TXB, a receiver RXB, and a unit D, which is used to connect the transmitter TXB to the receiver RXB in a transponder mode of the sensor B, with the result that a signal SRXB received by the receiver RXB is emitted again by the transmitter TXB as a signal STXB. A gain Gcon,B between the received signal SRXB and the signal STXB which is emitted again is predefined in this case.