Light Curtains: What are they and how are they used?
The purpose of a light curtain is to ensure that people are protected from dangerous machinery, which is a term that can be applied to any form of machinery or piece of equipment that is capable of moving in such a way that it could potentially harm or kill a human being. So what are light curtains, what do they do and how do they provide safety?
What is a light curtain?
A light curtain is a photoelectric style device that has similarities with an opposed beam photocell but which is arranged in a vertical array along with two or more beams within a variety of spacing configuration in order to create a “curtain”.
To put it simply, a light curtain makes use of the detection of a presence between a receiver and a transmitter, with the latter sending infrared light to the photoelectr...