A mirror is an object with a smooth surface and can reflect light. The most common mirror is a flat mirror, which people often use to tidy up their appearance. In science, mirrors are also commonly used in telescopes, lasers, industrial instruments and other instruments. Metal devices with regular reflective properties and glass or metal products coated with metal reflective films are often inlaid with metal, plastic or wooden frames. Mirrors are divided into plane mirrors and curved mirrors. Curved mirrors can be divided into concave mirror and convex mirrors, which are mainly used as dressing mirrors, furniture accessories, architectural decoration parts, optical instruments, solar cookers, reflectors for headlights and searchlights, reflecting telescope, car rearview mirrors, etc.

Everyone is wondering, why does the clothing store look good when it tries on clothes, but it looks different in the mirror when it comes home?

The flat mirror image is the same size as the real thing, and the concave mirror image will be slightly smaller than myself. Most mirrors in clothing stores are concave mirror, but the effect of "slimming" will not be exaggerated because of the tiny radian. Some shops can also adjust the angle of the mirror, and the angle between the mirror bracket and the ground is about 65 degrees. According to the principle of light reflection and refraction, the proportion of the lower body increases obviously after the mirror is tilted. Moreover, the backward portrait lengthens the vertical angle of view, which is similar to the reason why people look taller when lying down than when standing.

The size and shape of the mirror are also very particular. Even if there is a large enough wall, this kind of mirror rarely covers the whole wall, and generally only occupies a small part in the middle of the wall and is placed vertically in a rectangular or elliptical shape. It's not to save money, but the effect of "slimming" with narrow and long mirrors is better. In addition, the more layers of mercury plating, the stronger the photosensitive ability of the mirror. Clothing stores often use a mirror with three layers of mercury, which reflects much more light than a mirror with one layer of mercury, and the outline of a portrait will be more distinct, just like a sharpened photo, which looks very bright and saturated.

With this lying mirror, it's hard for you to love yourself or not to love yourself. Moreover, most clothing stores have soft lighting, which can make the skin color look even and bright. So many times, women choose to buy clothes to relieve stress, not because the clothes they buy look good, but because the process is too enjoyable.