Photoelectric sensors and light curtain sensors are among the most commonly used sensing devices in factories. Photoelectric ...

Safety light curtains play an important role in many machine-safety strategies. Light curtains consist of two linear arrays of through-beam optical sensors commonly referred to as light bars. Only one ...

Light sensors often use an infrared LED as a light source. Infrared LEDs have a greater intensity than LEDs that emit visible light. And when infrared photodiodes are used the sensors are relatively ...

A new breed of light curtain is gaining recognition in the United States. Developed in Europe and classified as "Type 2," it is a lower-cost, reduced-capability alternative to the more robust "Type 4" ...