line of sight

• Ligne droite continue entre un observateur et un objet, ou capacité de voir directement quelque chose sans obstacle. S'emploie aussi au sens figuré pour désigner un chemin clair ou un accès direct à un objectif.

An unobstructed straight line between an observer and an object, or the ability to see something directly without obstacles. Also used figuratively to mean a clear path or direct access to a goal.

1. Direct visual pathB2formal

   An unobstructed straight line between an observer and an object being viewed.

   Ligne de visée

   • The sniper needed a clear line of sight to the target.
   • Tall buildings blocked our line of sight to the mountains.
   • The camera must have a direct line of sight to the subject.

2. Communication or transmission pathC1formal

   A direct, unobstructed path for signals, such as radio, light, or wireless communication.

   ligne de visée

   • The satellite dish requires a clear line of sight to the sky.
   • Wi-Fi signals can be weakened if there is no direct line of sight.
   • Laser communication works best with a direct line of sight.