Periscope
A periscope is an optical instrument used to observe objects, typically while remaining concealed from view. It consists of a tube with mirrors or prisms at each end, allowing an observer to see around obstacles or over obstacles that would otherwise obstruct their view. Periscopes are commonly used in various applications, including submarines, armored vehicles, and certain types of buildings.
Parts of Periscope
- Main Tube
- Prism or Mirror
- Eyepiece
- Objective Lens
- Handles
- Adjustment Mechanism
Working of Periscope
In a periscope, light from an object strikes the top mirror at 45° and bounces off at the same angle. This sends light directly down the tube and onto the lower mirror. This mirror, also at a 45° angle, reflects light directly to your eye. Periscopes are widely used in military vehicles, tanks, and armored personnel carriers to allow soldiers to observe their surroundings from inside a protected enclosure.
Optical Instruments
Optical instruments are devices designed to manipulate and detect light for various purposes, ranging from imaging to measurement and analysis. They utilize the principles of optics, which is the branch of physics that deals with the behavior and properties of light.
In this article, we will study about optical instruments, different types of optical instruments such as eye, lens, microscope, telescope, periscope, and kaleidoscope, and their working.
Table of Content
- What are Optical Instruments?
- Different Types of Optical Instruments
- Eye
- Lens
- Microscope
- Magnifying glass
- Telescopes