Force field (fiction)
（重定向自ForceField）
In fictional works, a force field, sometimes known as an energy shield, force shield, or deflector shield, is a barrier made of energy or particles. It protects a person, area, or object from attacks or intrusions. This fictional technology is created as a field of energy without mass that acts as a wall, so that objects affected by the particular force relating to the field are unable to pass through the field and reach the other side. There is ongoing scientific research into real force fields, primarily to protect against radiation.