Is Car Modification Laser Headlight Safe?

Automotive lighting technology is developing rapidly. Laser headlight has been widely used in luxury cars instead of xenon lamps and LEDs.

But many people will have doubts when they hear that it is a "laser" product. Will it blind our eyes at a glance and make people blind?

The answer is undoubted no!

Now any product development is based on the premise of safety. They are all further developed to meet the individual needs of more car owners. This kind of laser headlight is not the kind of dazzling laser in the movie, it is not even dazzling at all.

The principle of laser headlights

The principle of the laser headlight is that the blue light of the laser light-emitting diode will penetrate the fluorescent powder material in the headlight unit. It utilizes the three characteristics of laser monochromaticity, collimation and coherence. The fluorescent crystal is excited to emit light and mixed with blue light to emit white light, which enhances the brightness and is more eye-friendly.

Features of laser headlights

Monochromaticity, collimation, coherence

In the process of exciting the fluorescent crystal by the laser, the three characteristics of the laser have been converted into ordinary white light, which solves the problem of monochromaticity;

The light emitted by the fluorescent crystal has a large emission angle, which solves the problem of collimated light;

Coherence is a measure of laser safety. Laser light is coherent light, and the characteristic of coherent light is that all its light waves are synchronized. The whole beam of light is like a "wave train".

Then the laser has the characteristics of polarized light, so we can use the polarizer to filter out the laser at a specific angle.

The laser light does not change after passing through the polarizer; after the polarizer is rotated by 90°, part of the laser light is filtered and absorbed by the polarizer. This is the coherent property of laser light.

The laser light is converted into fluorescence by irradiating the fluorescent crystal, and then becomes incoherent light after being scattered by the fluorescent crystal.

The blue light emitted by the automotive lighting laser light source is not significantly weakened after being filtered by the polarizer, that is to say, there is no filtering effect.

This proves that the light of the automotive lighting laser does not contain polarized light components. It shows that the vehicle lighting laser is not coherent light, which solves the problem of coherence;

After the conversion of the fluorescent crystal, the laser becomes a white light close to natural light. It is neither coherent light nor has the high power density of the laser, and naturally does not cause any harm to the human body.

Advantages of laser headlights

The performance of the laser headlights is indeed very powerful. Due to the energy-gathering characteristics of lasers, direct illumination will also cause great harm to human eyes. But the laser headlights on the market now don't have to worry about this at all.

First, current laser headlights don't emit a laser beam directly in front of the vehicle, but instead, within the lens, first emit the laser beam to a set of mirrors. After reflection, the laser energy will be concentrated in a lens filled with yellow phosphorous.

At this time, the yellow phosphorus is excited by the laser and emits a strong white light. This white light is reflected back on the reflector, emitting a bright white light towards the front of the vehicle.

Second, the white light from the lens does not cause irritation or damage to the eyes of humans and animals. And the brightness and color temperature of the laser headlights are in compliance with regulations. And the irradiation effect is in line with the visual habits of the human eye.

Finally, the laser lenses currently on the market are not entirely based on laser light sources. Because the current laser lens is actually still an LED light source for the low beam. And the high beam is a laser light source added to the LED light source.

Conclusion

If you are looking for a Laser Headlight  manufacturer, we hope we will be your best choice.