Convex Mirror and Its Uses – Biri Trading UK

A convex mirror, also known as a diverging mirror or a fish-eye mirror, is a spherical mirror with its reflecting surface curved outward. The center of the mirror bulges outwards, while the edges are thinner. The reflection produced by convex mirrors is smaller than the actual object, which makes the image appear farther away than it really is.

Convex mirrors have a wide range of uses, from automobile side mirrors to decorative mirrors in households. In this article, we will discuss the science behind the convex mirror and its various applications.

Science Behind Convex Mirror

The convex mirror reflects the light rays in such a way that they diverge, or spread out, from the surface of the mirror. This is because the center of the mirror bulges outward, causing the light rays to reflect at an angle away from each other. As a result, the image formed by a convex mirror appears smaller than the actual object.

The focal point of a convex mirror is behind the mirror's surface. This means that the reflected light rays converge at a point behind the mirror, making the image appear farther away than it really is. Due to this property, convex mirrors are often used as rearview mirrors in automobiles, allowing the driver to see a wider field of view behind them.

Applications of Convex Mirror

  1. Automobile Rearview Mirrors

As previously mentioned, convex mirrors are commonly used as rearview mirrors in automobiles. The wider field of view provided by the convex mirror allows the driver to see more of the road behind them, reducing the risk of accidents.

  1. Security Mirrors

Convex mirrors are also used in security settings, such as in stores, warehouses, and parking lots. These mirrors allow security personnel to see around corners and in blind spots, reducing the risk of theft and other security breaches.

  1. Decorative Mirrors

Due to their unique shape and reflective properties, convex mirrors are often used as decorative pieces in households. They can create an illusion of depth and add a unique touch to any room.

  1. Traffic Mirrors

Convex mirrors are used at intersections, driveways, and other places where visibility is limited. These mirrors allow drivers to see around corners, reducing the risk of accidents and increasing safety.

  1. Ophthalmology

Convex mirrors are used in ophthalmology to examine the interior of the eye. These mirrors are placed in front of the patient's eye, reflecting light from the interior of the eye and allowing the ophthalmologist to see the retina and other parts of the eye.


Convex mirrors are an important tool with a wide range of uses. From automobile rearview mirrors to decorative pieces, the unique properties of the convex mirror make it a versatile and valuable tool. By understanding the science behind the convex mirror and its various applications, we can appreciate its significance in our daily lives.