A guide to convex observation mirrors

Convex mirrors can be used for a wide variety of purposes, from helping shopkeepers check for thieves to giving greater visibility when entering or exiting your driveway.

Here we take an in-depth look at convex observation mirrors so, if you’re thinking about purchasing one for your home or business, read on!

What is a convex mirror?

A convex mirror is a curved mirror, where the mirror lens curves outwards to provide a wider angle of view. These mirrors are also sometimes known as diverging mirrors, convex traffic mirrors or convex security mirrors and they can be used in many locations to improve safety and security.

How do convex mirrors work?

A convex mirror bulges outwards slightly and reflects light out towards its edges. Although it presents a distorted reflection, it gives you a wider field of view than a standard, flat mirror so you can see further around corners in your premises or bends in the road.

What are convex mirrors used for?

Traffic surveillance

Homeowners or people who regularly park on a driveway with a bend may find convex mirrors to be of great value. They can be positioned on the roadside, which allows drivers to check and see if anyone is coming before pulling out. They can also be used outside busy schools where visibility is limited, or at busy junctions so cars can navigate the area more safely.

Indoor surveillance

Convex mirrors can be used as a cheaper alternative to security cameras as they allow shopkeepers to monitor their premises. This can help to increase safety within the shop and reduce the risk of theft.

Industrial safety

In construction sites and industrial spaces there may be a lot of blind spots. This increases the risk of accidents and injuries so convex mirrors are used to reduce this possibility. They can be installed in many  locations, such as in vehicle compounds, at entrances and exits or in delivery and dispatch areas.

Which type of convex mirror is right for me?

There are several factors that you should take into consideration before purchasing your convex mirror. By thinking about certain factors beforehand you can ensure your mirror meets your expectations and fulfils your need for better visibility.


The bigger the mirror you choose, the more visibility you will get. Convex mirrors are available in a wide variety of sizes and so it’s important to think about where you can locate your mirror and what field of view you need to achieve.


Convex mirrors are available in many different shapes, sizes and angles. Some examples of angle size include a full-dome for a 360-degree view, a half dome for a 180-degree view, and a quarter dome for a 90-degree view.

Indoor or outdoor use

Where you are going to place your mirror will have a large impact on what features it will come with. If you are purchasing for outdoor use choose one with anti-frost and anti-condensation features.


Some convex mirrors are specially toughened with shock-resistant properties for use on busy roadsides or in factories and warehouses; others are made from lightweight acrylic materials that offer excellent visibility and ease of installation while also avoiding the safety risks associated with glass.

How do I maintain my convex mirror?

The great thing about convex mirrors is that they require very little maintenance. Once you install your mirror where you need it to go, it will serve you for years on end without needing more than a quick wipe clean to keep it in tip-top condition and ensure clear visibility every time you use it.

Christopher Stern

Christopher Stern is a Washington-based reporter. Chris spent many years covering tech policy as a business reporter for renowned publications. He has extensive experience covering Congress, the Federal Communications Commission, and the Federal Trade Commissions. He is a graduate of Middlebury College. Email:[email protected]

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