Planetary shield generator

A planetary shield generator was a type of shield that was projected from a planet or moon to protect a large, nearby object.

They were projected by a focusing dish on the surface of the planet and rose in a funnel-like manner to envelope the object. The shields are cabaple of disintegrating anything that comes into contact with it, whether it be a starship or a laserbolt.

The most well-known example is the shield that protects the second Death Star. The only way for the rebellion to deactivate it was to destroy the focusing dish on the Endor moon.