A device used on fibre optic networks. Using an LED or laser, it emits pulses of light onto a fibre optic cable.

a light-emitting diode (LED) or a laser which transmits an optical pulse along the fibre

1. The sensor containing the source of sensing energy in opposed-mode sensing. 2. The emitting device within any sensor (e.g. LED, laser diode, ultrasonic transducer, etc.).

A component of a safety light curtain that consists of a row of synchronized / modulated light emitting diodes. The emitter, together with the receiver that is placed opposite, creates a curtain of light called the protective field.

An emitter is any device used to emit any signal, beacon, light, odor, liquid, fragrance, or the like.