What is a lens? A lens is an optical lens. A lens is an optical element that is made of transparent material and the surface is part of a spherical surface. The lens is composed of several lenses. There are two types of plastic lenses and glass lenses. The glass lens is more effective than plastic. Better but the price is also more expensive. Common lenses can be seen on cameras, cameras, car lights, and LEDs. The lens can cut the light and make the light controllable.

What is a lens?

Lens is an optical element made of transparent materials (such as glass, crystal, etc.). The lens is a refracting lens, and its refractive surface is a transparent body with two spherical surfaces, or one spherical surface and one flat surface. The images it forms have real and virtual images.

Convex lens has the function of condensing light, so it is also called "converging lens" and "positive lens" (which can be used for hyperopia and reading glasses). This type of lens can be divided into: biconvex lens-a lens with both sides ground into a convex spherical surface; plano-convex lens-a lens with one convex side and a flat surface; meniscus lens-a lens with one convex and one concave.

Concave lens has the function of diverging light, so it is also called "divergent lens" or "negative lens" (which can be used for myopia glasses). This type of lens can be further divided into: double-concave lens-a lens with two sides; plano-concave lens-a lens with a concave side and a flat surface; a convex-concave lens-a lens with a convex side and a concave side.

The above is the entire content of "What is a lens?" I shared today. I hope it can help you. Generally, automotive lenses are common, and they benefit greatly. The light shape of the lens is the most standard. It can have a clear cut line of light and dark. The problem of astigmatism is solved by the effect of focusing. In foreign countries, xenon lamps are The standard lens is used, this kind of lens belongs to the category of optical lens, we call it "lens". Adopt the advantages of small light loss and so on.