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If you're a young man trying to forgive the leaves on fire with the sun or a person in search of clues, you probably need a magnifying glass encountered in some form. HOLD in the modern world, is one of those voices that people take for granted, as if they were ever given. This article provides a deeper insight into the world of magnifiers. First, we will follow a brief history of the microscope, followed by an analysis of the different types of lenses and many ways to use the magnifying glass at home for business purposes.

History
Although the ancient Romans, first observed the properties of magnifying glass in the 1st century AD, the objective, as we know it today, came to prominence in the 13th century. Called "flea glasses" when the first glasses were used for the complexity of insects. This technology has been perfected during the Renaissance, because it leads to microscopes, telescopes and magnifiers to high power. Although the technology Lupe in all areas of cameras reading glasses used today is the traditional magnifying glasses are still widely used and distributed for various purposes.

Feature
A lens magnifies objects by using a double convex lens. The structure of the double-convex means that the center of the thicker glass and the rim of the glass is thinner. As the light hits the edge of the glass, pushing the convex shape of the light toward the center, thus magnifying glass for each glass element. To create the magnification, the focal length (the radius of the curve lens) must be greater than the distance is a magnifying glass to do what one is tempted to enlarge. If you keep the goal too far, has the opposite effect the object appears smaller than normal.

Types
The most standard lens is a lens of plastic, wood or metal with a handful more often of the same material attached bound. Other goals include a pocket magnifying glass, magnifying glass plate (thin concentric lens, l '(combined in one lens), and the lens is a magnifying glass is very precise use by craftsmen and doctors).

Size
Magnifiers vary in size and capacity expansion. Detailed zoom lenses 10X, 20X or more, while the average target 3X or 5X zoom. In terms of size, the lenses can be extremely low (as the microscope in boxcutter Switzerland) or very large (such as industrial engineering and magnifying glasses).

Potential
Magnifiers are many applications. At home, magnifiers help people see the pictures and maps. For those who can see the problems, a magnifying glass to help the reading. Science and technology, microscopes, magnifiers and magnifying glasses are used with other objects, which to the naked eye, can not illuminate. Craftsmen, as jewelers and watchmakers including magnifiers, to improve the accuracy of their work.

Popular culture
Perhaps the most common image of Sherlock Holmes magnifying glass is looking for a clue. Magnifiers are also known as "research" or "Zoom" icons in several programs, like Spotlight for the Macintosh computer.