Fresnel magnifier is a slim magnifying glass. Made of transparent plexiglass (and more materials ，of course ).
Fresnel magnifier made of PVC, the minimum thickness can be between 0.45mm~0.90mm, unlike ordinary magnifiers.
Its surface is covered with tiny stripes, and its spiral stripes contain a number of convex lenses (referred to as the ring shape), so that the light passing through it bends to produce diffraction.
Thereby forming an enlarged image. The Fresnel lens is characterized by a higher brightness and a flat surface than a normal lens, and a large radiation area.
Generally, the ordinary meniscus lens has a very limited diameter, and Fresnel plays a very good role in the field of the magnifying glass, achieving the effect that ordinary ordinary lenses cannot achieve.
Moreover, the Fresnel magnifier made now has a thickness of only 0.45mm. The main purpose of the portable belt is to reduce the weight and volume of ordinary plexiglass and glass magnifier made by traditional magnifiers.
The high-definition reading magnifier produced by our company is produced by the principle of Fresnel lens. It is widely used in teaching demonstration, reading of the elderly, reading newspapers, viewing maps, and cultivation of edible fungi.
Can be customized according to customer requirements.
Features: high magnification, not easy to scratch, not easy to break, light weight, high transparency, easy to use, free