MirrorsA mirror is a flat or curved surface that reflects light in such a way as to preserve much of its original quality. This is typically achieved by coating the mirror surface with a thin layer of a highly reflective material, such as silver or aluminum. Mirrors are commonly used in a variety of applications, including telescopes, microscopes, and other optical instruments, as well as in everyday items such as mirrors for personal grooming and rearview mirrors in vehicles. Mirrors can also be used to redirect light in optical systems, such as in laser beam expanders and optical fibers.