Laser linear position sensor ifm electronic
efector 200

What is a laser?
Laser light consists of light waves of identical length which have a defined phase relation (coherence).

Laser systems also have a relatively small angle of radiation.

What are the distinctive features of laser systems?

Laser systems are used where detection of small objects or precise positioning is required. Due to the small angle of divergence this can be achieved over long ranges.

How dangerous are laser sensors?

Due to the small angle of divergence laser beams are focussed on a small area. The energy and power density on this area is extremely high. Depending on the technical data of the laser transmitter, this is a risk for human health, specially for the eye. ifm laser sensors conform to the Euro standard EN60825 and the international standard IEC60825. These standards describe the operation of laser systems. In the standard laser systems are divided in 5 classes.

ifm laser sensors are classified in the laser protection class 2. Thus the laser power, also in the setting mode is max. 1 mW. When the laser beam hits the human eye the eyelid is instinctively closed. When hitting the unprotected eye the laser beam must cause no damage within a time of 0.25 s.

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