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In life, we always use physics unintentionally. The most basic principle of leverage is very common in life. However, not only physics, physical appliances are also closely related to our lives. Then, the protagonist that Spherical Lens Supplier will introduce to you today is the lens.

There are still many lenses used in our lives. For example, headlights will be applied to lenses. The entire lighting effect has been upgraded by a grade; or convex lens version of the mirror, and concave lenses for the benefit of myopia!

We are familiar with two kinds of headlight lenses:

Single light lens: It is only one light-low beam, generally using halogen bulbs or xenon bulbs.

Double light lens: It is a lens that can realize the switching of the far and near light through the light shield inside the lens! When the shutter is closed, it is low beam, and when the shutter is open, it is high beam! But the lamps in Ball Lenses are not moving, and there is no change!

Just like this, the installation of a two-lens lens also realizes that a xenon bulb performs two functions of high beam and low beam. When it comes to this, some friends may ask: Isn't it enough to install a xenon bulb directly? Because the car headlight assembly does not have a lens, after the HID is installed, the traditional halogen lampshade can not achieve the function of condensing. Not to mention the lighting effect is greatly reduced, the emitted light will definitely diverge, causing a glare effect. It will also seriously affect the normal driving of the oncoming vehicle, which poses great safety risks. The addition of a dual-beam lens will prevent the light from diverging in the state of high beam and low beam, but the lighting effect on the ground is very good, it will not cause glare, and will not affect the normal driving of the oncoming vehicle. Bifocal lenses are commonly used.

Bi-Concave Lens

There are many benefits to installing a lens in a car headlight. For example, on a rainy day, the lens light can perfectly converge, so you can see more clearly, just like your eyes! That talked about automotive lenses, let's talk about concave lenses next. Concave lenses are widely used in the treatment of myopia. Its main function is to astigmatism. In addition, there are Bi-Concave Lens. Convex lenses use parallel rays to deflect through a concave spherical lens. The rays diverge and become divergent rays. Sexual focus, along the opposite extension of the diffused light, intersects at point F on the same side as the projected light, forming a virtual focus.

Speaking of which, we humans really make full use of the phenomenon of light to bring us a different world.