Collection:Light Sensors For Pneumatic Cylinders

View Tameson's range of light sensors.

The diffuse-reflective photoelectric sensor has a transmitter and receiver integrated within the same housing, similar to the retroreflective photoelectric sensor. As opposed to retroreflective photoelectric sensors, this one does not require a reflector. An object's light reflection is evaluated by the sensor. When an object reflects a light beam, the sensor's output is connected to the receiver. Scanning distances are specified for a standard object with 90% re-emission (white paper).

A diffuse-reflective photoelectric sensor with background fade-out only reacts to objects that are at a different, varying distance from it. The rest of the objects are ignored.

In a retroreflective photoelectric sensor, the transmitter and receiver are integrated into one housing. A reflector reflects the light beam back from the transmitter to the receiver. Light beams are interrupted by objects to be acquired, and outputs are connected through them. The color or shape of the object does not affect its function. Compared to the one-way light barrier, the retroreflective photoelectric sensor only requires one active component.