Fragor

Frequently asked questions

What is laser?

Laser is a short word for Light Amplification by Stimulated Emission of Radiation.
Light consists of different wavelengths. The human eye is sensitive for the visible light that has wavelengths between 350-680nm. Laser light differs from visible light by being monochromatic and not diffuse. Compare this to an ordinary lamp, where the light is spread in all directions.

Laser light is parallel and coherent which means that the frequency is stable. The light is total focused and gathered into a perfect beam.

Is laser dangerous?

Laser is divided into different safety classes depending on output power and focus. The laser class is noted on every laser. Latronix sells lasers up to laser class that make damage to skin.

Does the laser do any harm to my body?

A laser of laser class 3R is dangerous to the retina in the eye. Latronix sells lasers up to laser class that make damage to skin.

Can a laser pointer by dangerous?

Laser pointers (the ones that are for sale in ordinary shops, not provided by Latronix) are normally not dangerous toward eyes. But do never watch into any laser beam! There are several laser pointers on the market that have doubtable quality (not provided by Latronix). These lasers might be marked with wrong laser class!

Which wavelengths are visible?

The human eye is sensitive for the visible light that has wavelengths from 350nm (violet) to 680nm (deep red).

Is the eye more sensitive for green light than it is for red?

Yes. The eye is sensitive for green light (500nm) and the sensitivity decreases further from green.

Is there anything special I should have in mind when I use laser?

A laser of laser class 3R is dangerous to the retina in the eye. Latronix sells lasers up to laser class that make damage to skin. Together with optics (e.g. ordinary glasses or magnifying glasses), the laser might be dangerous anyway. It is therefore important to never let children play alone with laser!

Which wavelength suits my camera?

That depends on the camera. Contact your camera supplier for information.

Can I increase the signal/noise ratio in my camera/laser application?

Use a thin colour filter that stops all light but light from the laser.

Why shall I use laser with modulation?

You can e.g. control the pulse frequency on a laser with modulation. This means that you can control when to turn on/off the laser. It is also possible to regulate the output power from zero to max.