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A convex mirror is a reflective surface that bulges towards the light source. It is also referred to as a fish eye mirror because of its appearance. A convex mirror is not used to focus or concentrate light, it simply reflects the light outwards and produces virtual images, irrespective of the distance between the object and the mirror.
The use of a convex mirror is widespread. They are commonly found in cars, airplanes and even in some automated teller machines to provide the user with a wider view of what is behind them and thus to improve safety.
They are also used in buildings’ hallways and even in parking lots to allow security guards or office workers to see people approaching from behind them. These are especially helpful in detecting burglary, theft of cash or other smuggling activities.
Convex mirrors are often coloured to blend into their environment (or to meet industry standards) so they can be easily distinguished from other mirrors, and also to aid in search and inspection tasks. They are also available in a range of materials, sizes and styles to suit specific needs or to complement the buildings design.
When an object is placed at infinity, a virtual image is formed at the focal point between the pole and the center of curvature behind the mirror. It is a highly diminished and virtual image, which is smaller than the actual object.
