Photo Optics

Photo optics use light to detect the presence or absence of an object. When an obstruction interrupts the beam of light and reception is blocked, the system sends a signal to motor controls to stop and/or reverse motion.

Photo eyes are commonly used to guard the entrapment zones around commercial motorized doors, automated vehicular gates, and in industrial automation and manufacturing. They can also be used for elevator doors and counting.

The Miller Edge photo optics collection includes single-beam photo optics utilizing one beam of light and light curtains offering multiple beams of light to guard a greater vertical range.

Technology

Thru-beam technology utilizes an emitter and a receiver. Mounted opposite of each other, the sending unit emits an infrared beam of light, which is received by the receiver. A retro-reflective system houses both the light emitter and receiver in one unit. A beam of light is emitted to a retro-reflector and bounced back to be received by the emitter/receiver unit.