Fresnel magnifying glass, Fresnel magnifier

Product Informations

WS3LED

WS80

WS7322L

WS7727

WS275205

WS305195

WSA4

Fresnel magnifier Characteristic:

The minimum thickness of Fresnel magnifying glass made of PVC can be between 0.45mm and 0.90mm. Different from ordinary magnifying glass, its surface is covered with tiny stripes, and its vortex like stripes contain many convex lenses (referred to as circular rings), so that the light passing through it bends to produce diffraction phenomenon, so as to form an enlarged image. Fresnel lens is characterized by higher brightness than ordinary lens, flat surface and large radiation area. The diameter of ordinary concave convex lens is very limited, and Fresnel plays a good role in the field of magnifying glass, which can not be achieved by ordinary lens. Moreover, the thickness of the Fresnel magnifying glass is only 0.45mm. In fact, the main function of the portable belt is to reduce the weight and volume of the ordinary plexiglass and glass magnifying glass produced by the traditional magnifying glass.

Card Fresnel magnifier, with a variety of magnification, wide magnifying field of vision and very convenient to use. Because the magnifying glass is made into the shape of a business card, it has small volume and simple storage. For example, it is used for magnifying and consulting the small font of a foreign language pocket dictionary. After use, it can be clamped between the pages as a bookmark. It can also be clamped in books, notebooks, work permits, business card folders and stamp collectors. It can also make a card magnifying glass with a lamp. It is also very convenient to use at night. It has the advantages of light weight, light weight, easy to carry and so on.

APPLICATIONS OF FRESNEL LENS

The applications for Fresnel lenses include lighting, fresnel lamp, lighthouse, overhead projector, Fresnel magnifier, Fresnel TV projection, condenser system, camera fresnel spotlight, automobile headlight, fresnel lens solar energy , rear projection Fresnel screen, passive motion detector, traffic sign, fresnel lens photovoltaic, fresnel solar concentrator, collimator, fresnel flight simulator, optical landing system and LED magnifier.

ADVANTAGES OF FRESNEL LENS

The Fresnel lens can be designed and manufactured in very large sizes with light weight due to less than 4mm thickness, so the cost will be lower than traditional magnifiers. ln contrast, a conventional glass lens would be 200mm thick at the edge, weigh over 50kgs and cost thousand of dollars.
Significantly reduced lens thickness results in a substantial savings in material cost. Fresnel lenses can reduce weight, which reduces mounting and assembly cost. Extremely giant Fresnel lens up to 1000mm can be used to replace a very expensive conventional mirror assemblies in large optical systems.
Full page 3x magnifying sheet with black border magnify up to 300%. It is considered the most comfortable magnification for reading small prints, ideal for Viewing and checking tiny hobby and crafting materials, small electronic gadget parts such as screws and pins.