Electro-optical sensor

Electro-optical sensors are electronic detectors that convert light, or a change in light, into an electronic signal. They are used in many industrial and consumer applications, for example:

• Lamps that turn on automatically in response to darkness
• Position sensors that activate when an object interrupts a light beam
• Flash detection, to synchronize one photographic flash to another
• Photoelectric sensors that detect the distance, absence, or presence of an object