How to Use Convex & Concave Mirrors

From the home to the car to the dentist's chair, mirrors are used in most aspects of everyday life. But not all mirrors are the same. Some are convex, and some are concave.
A mirror with a curved reflective surface receives one of two classifications: convex (meaning it has an outward bend) or concave (meaning it has an inward bend). A convex mirror reflects light away from the viewing object. As a result of its spherical shape and how light is reflected, objects that are viewed in the mirror appear smaller, providing a wider field of view. A concave mirror reflects light inward and toward the viewing object, making such images easier to view close up.

Things You'll Need

• Mirror stand

Instructions

1. Use a concave mirror to view the face when shaving. Concave mirrors are commonly joined as a two-sided "shaver's mirror" and can be purchased at most drugstores. You can also purchase a single concave mirror and use when shaving or plucking your eyebrows.

2. Hold the concave mirror at a comfortable angle or use a concave mirror already attached to a stand. Remain at a close distance to the concave mirror and trace the razor along the skin moving in an upward motion. It is necessary to remain close to eliminate distortion and prevent the obstruction of your view. The concave mirror will reflect small articles on the face, including pours and stray hairs, making it optimum for shaving, plucking, waxing or even viewing lines and wrinkles.

3. Use a convex mirror to replace a side-view mirror in your vehicle. A convex mirror allows you to see other motorists on the road; however, the image may be closer than the actual object.

4. 

   Attach a convex mirror on the side of your property to view the sides of your property or areas where children will be playing. Allow for easy visibility by placing the convex mirror high and away from large trees or window panels.

5. 

   Attach a convex mirror at the door of your garage to see objects when exiting the structure. This is especially true when young children are present in the home. Every year, hundreds of children and pets are injured by vehicles that are backing out of a garage. Place the convex mirror on the outside or inside frame of the garage door where it can provide a clear view without damaging the function of the garage door.

Tips & Warnings

• If a convex or concave mirror breaks, it can cause serious injury.