Multi Purpose Magnifier

Magnifying glasses make objects look larger because their outward curved (convex) lenses bend light rays so they come together. Basically, magnifying glasses trick your eyes into seeing something differently - larger - than it really is.

Normally, light rays bounce off objects and travel to your eyes along straight parallel lines. But when we use a magnifying glass, the convex lens bends the rays so that they come closer together and make a changed 'imaginary' image on the retinas inside your eyes. Even though the magnifying glass bends the light rays on the way to your eyes, your eyes track the light rays straight back to the 'imaginary image. This tricks your eyes and brain into thinking the image is further away and bigger) than it really is, due to principles of geometry (how shapes appear inspace).