What is a lens?
A car lens is a hemisphercial glass cover, and the light will change when it comes out of the lens.
The lens is divided into single lens and double lens.
1.Single lens is also called low light lens,only low light.
2.The double lens can realize the switching between the high and low light.
When changing the LED headlight,will it be faced with whether to install a lens or not?
1.The light soure of the headlight itself has done a standard tangent design,which can match with the reflecting cup well during instanllation.If the complete tangent is reflected,the lens is not need.
2.If the tangent is not good and the astigmatism does not focus, a lens must be added.
Angle eye and devil eye
"Angle eye" is a luminous circle,decorated with lights outside the lens.
"Devil eye" is also a diaphragm.
The difference between "angle eye" and "devil eye" is that it is installed in the lens,and the light refracts like a ball.
