光电传感器

The Optoelectronic Sensors for use as light sensors (energetic or with background suppression) or as reflection light barriers. Light transmitter and receiver are both mounted in the same housing. The emitting diode emits radiation with a wavelength of 660 nm with red-light switches or. 880 nm with infrared switches. When hitting the detected object the pulsed light is reflected diffusely and partially impinges on the receiver. With energetic sensors the received energy is evaluated whereby the possible sensing distance is dependent on the colour/reflection characteristics and dimension/design of the object. By using sensors with background suppression the angle of incidence is evaluated and thus the sensing distance is to a great extent independent of the object's characteristics. For example, these sensors are applicable to detect objects in front of bright or strongly reflecting surfaces.