Periscope

A periscope is an optical instrument that uses prisms or mirrors to reflect an image through a tube, allowing the observer to see around, over, or through an obstruction. It's primarily used in submarines, tanks, and other enclosed environments to provide a view of the surroundings without exposing the observer. Periscopes offer a critical advantage by allowing observation from a concealed position, contributing to tactical awareness and safety. The design principle utilizes the reflection of light, enabling a change in the line of sight.

Periscope meaning with examples

• The submarine captain scanned the ocean surface with the periscope, seeking any sign of enemy ships or potential threats. The high-powered optics revealed detailed views, allowing for careful navigation. Submarines rely on this device to surface safely and get clear views from below the waves, an essential tool for naval combat.
• During the tank battle, the gunner carefully adjusted the periscope's settings to accurately target the enemy fortifications. The instrument provided a wide field of vision, allowing them to identify strategic weak points in the opponent's defenses. The periscope provided clear lines of sight over any obstacles.
• From their hidden bunker, the soldiers used a portable periscope to observe enemy troop movements without risk of being detected. The rugged design of the periscope and the ability to extend the viewing area contributed to a long period of surveillance and better strategic decisions.
• The security guard employed a periscope attached to the door to survey the hallway prior to opening, assessing whether any unauthorized personnel were present. It was used to check if anyone was standing outside before opening the door, thus preventing intrusion from intruders.
• Scientists utilized a specialized periscope to inspect the interior of a reactor chamber at a safe distance. With high-resolution optics, the periscope provided insight into the workings of a normally inaccessible area and helped them to examine the inner workings of a dangerous reactor.