What is the lens and the inspection standard of the lens

When the lights are on, we can see the prosperity of the city's neon lights. The more beautiful the night view of a city, the more obvious the city's economic strength. Rapidly developing cities use more LED lighting products to decorate cities. Optical LED lens is an indispensable accessory in LED related products. This product helps to improve the performance of LED lights, not only can improve the brightness, but also achieve the effect of no glare. It is an important element of modern lighting. The following is to introduce to you what is a lens and the inspection standard of a lens, welcome to read!

What is a lens?

Lenses are made according to the laws of refraction of light. Lenses are optical elements made of transparent substances (such as glass, crystal, etc.). ). A lens is a type of refractor whose refracting surface is either two spheres (part of a sphere) or a sphere (part of a sphere) and a flat transparent body. The images it produces include real and virtual images. Lenses can generally be divided into two categories: convex lenses and concave lenses. The central part thicker than the edge part is called a convex lens, and there are three types of biconvex, plano-convex, and concave;

The lens is an optical system closely related to the LED, which helps to improve the luminous efficiency of the LED and change the light field distribution of the LED. High-power LED lens/reflector is mainly used for concentrating and guiding light of high-power LED cold light source series products. The high-power LED lens designs the light distribution curve according to different LED light-emitting angles. By increasing the optical reflection, the light loss is reduced and the light efficiency is improved (the aspherical optical lens is set).

The lens is an optical system closely related to the LED, which helps to improve the luminous efficiency of the LED and change the light field distribution of the LED. High-power LED lens/reflector is mainly used for concentrating and guiding light of high-power LED cold light source series products. The high-power LED lens designs the light distribution curve according to different LED light-emitting angles. By increasing the optical reflection, the light loss is reduced and the light efficiency is improved (the aspherical optical lens is set).

Lens inspection standard:

No bubbles, no dents, no shrinkage marks, no flow lines, melting marks are within acceptable limits (do not affect packaging and use functions), warping deformation. The size is within the controllable range (does not affect assembly or overmolding), the product is wired, and the surface is dull (does not affect the optical effect).

Lens products obtain qualified products through injection molding, and also follow five elements of pressure, speed, time, temperature and position, as well as some injection molding rules. But the lens is stricter than ordinary injection molded products.