The lens prism is an optical element made of transparent material on the surface. It consists of several lenses. There are two kinds of lenses: plastic and glass. Glass lenses are more expensive than plastics. Usually camera lenses are constructed: 1P, 2P, 1G1P, 1G2P, 2G2P, 4G and so on. The more lens, the higher the cost. Therefore, a good quality camera should be made of glass lens, and its imaging effect is better than that of plastic lens. It plays an important role in astronomy, military, transportation, medicine, art and other fields.
Lens can be widely applied in various fields, such as security, vehicle, digital camera, laser, optical instrument and so on. With the continuous development of market, lens technology is more and more widely applied.
(lens) a lens is made from the law of refraction of light. A lens is an optical element made of transparent substances (such as glass, crystal, etc.). A lens is a refracting mirror, the refraction surface of which is a transparent body of a plane with two spheres (a sphere) or a sphere (a part of a sphere). It looks like a real images also have virtual image.
Convex lens: middle thick, the edge is thin, there are three kinds of convex, flat convex, concave and convex.
Concave lens: middle thin, thick edge, a flat concave, convex, concave three.