Periscope: How Reflection and Refraction Work Together

by Yuvi K - December 17, 2023

What is Periscope?

Periscope is a technology that harnesses the power of optics to recreate the real world in a virtual three-dimensional space. Through the use of curved mirrors and lenses, it creates an image of a three-dimensional object that is then projected onto the viewing surface. This technology is used in a variety of applications, such as military operations, aerial photography, and navigation.

How Does Periscope Work?

At the heart of periscope is the concept of reflection and refraction. Reflection is the process where a wave of light is bounced off of a shiny surface. This is also referred to as a mirror image. The angle of incidence, or the angle at which the light approaches the mirror surface, is equal to the angle of reflection, or the angle at which the light leaves the mirror surface. Refraction is also the process by which light is bent when it passes through a transparent medium such as a lens.

Reflection and Refraction in Periscope

In periscope technology, the lenses and curved mirrors are designed and arranged to create an image of a three-dimensional object that is projected onto the viewing surface. The curved surfaces of the mirrors and lenses act to focus and reflect the light rays in such a way that they form an image on the viewing surface. Light rays from the object being viewed first strike the curved mirror surfaces, which reflect them at the same angle as they arrived at the surface. This creates a reflection of the object on the viewing surface. The reflected light then passes through the lenses and is refracted to form an image on the viewing surface.

Reflection and Refraction Working Together

In periscope technology, reflection and refraction work together to produce an image on the viewing surface. The reflection from the curved surface of the mirror creates an image of the object being viewed, while the refraction of the light created by the lens further enhances the image. The combination of the two processes creates a three-dimensional image that can be viewed from different angles with varying degrees of clarity. In order to ensure maximum clarity, the lenses and curved mirrors are precisely positioned so that they create the correct focal length for the desired image.

Benefits of Periscope

Periscope is an invaluable tool for the military, providing it with the capabilities to observe objects and terrain from a distance. By combining the reflective and refractive properties of the lenses and curved mirrors, it provides a three-dimensional image that can be viewed from any angle with varying degrees of clarity. High-powered telescopes are also used to observe stars and planets from extreme distances, while low-powered versions are used for surveillance and navigation. Periscope has also become an invaluable tool for aerial photography, providing photographers with a unique perspective for capturing stunning images of scenery.

Conclusion

Periscope is an invaluable tool for military operations, surveillance, navigation, and aerial photography. The combination of the reflective and refractive properties of curved mirrors and lenses produces a three-dimensional image which can be viewed from any angle with varying degrees of clarity. When used correctly, periscope technology can provide a wealth of information that can be used to further the interests of a wide range of industries.