Beam emitter

A Beam Emitter is a Forerunner structure that, as the name implies, emits beams. There are several types of beam emitters on Forerunner installations.

Beam Emitter Towers
Beam Emitter towers are large delta-shaped structures with a cleave down the approximate center. They fire unknown beams upwards, in the case of the Halos to the center, and in the case of the Ark up into space. They are likely used to transport energy for the activation process of the Halo rings or used to get rid of excess energy.

Appearances
Beam emitter towers appear in the following levels:

Halo: Combat Evolved

 * Halo
 * Infinity

Halo 2

 * ''Relic

Halo 3

 * Valhalla
 * The Covenant

Continuous Beam Emitters
This type of Beam Emitter is usually seen in different types of activation structures.


 * The Control Rooms of the Halo installations also possess a type of Beam Emitter. Instead of a single bolts of energy, this type of beam emitter fires a continuous beam from the depths of the Control Room to the top of the structure, and into the center of the ring when the Installation is activated. In case the firing sequence is cancelled, like on Delta Halo, the beam collects into a large bolt of energy, which is fired into the center of the ring.
 * The Ark Portal in Kenya also has this type of Beam Emitter. It's fired when the Portal is activated.
 * The Apex site of the Unnamed Shield World also had this type of beam emitter.

Trivia

 * If you manage to stand at the top of the chute in which the beam shoots from, the beam can either kill you, sending you over a hundred feet in the air, or completely pass through you. When you are killed by the beam, it will say NameHere was Killed by the Guardians


 * It is possible that the beams visible during the campaign of Halo: Combat Evolved are simulated firings of Alpha Halo.