Appendix C. Laser Safety; Laser Radiation - Datalogic UniQ 1150-1X41 Product Reference Manual

Infrared fiber laser marker

Table of Contents

APPENDIX C

LASER SAFETY

The following information is provided in compliance with regulations set by Interna-

tional Authorities, and it refers to proper use of the laser marker.

Laser radiation is form of electromagnetic emission in the wavelength range from the

ultraviolet (e.g. from excimer lasers), through visible (e.g. HeNe or Argon lasers) and

near infrared (e.g. Yb Doped Fiber and ND:YAG DPSS lasers) up to long infrared (e.g. CO2

lasers). It should be considered as non-ionizing Radiation.

In the UniQ™ laser marker, the laser radiation emission of light is stimulated by "optical

pumping" generated by a Diode Laser. The continuous reflection of Photons, between a

front mirror and rear mirror, creates a positive reaction so that their number continues

to increase, until reaching the concentration necessary to produce a beam which proj-

ects from the semi-reflecting front mirror. The radiation (which we can imagine as a

"Beam of invisible light") is then Collimated and Focused with Lenses at a point where

the intensity becomes high enough to be able to react with various materials producing

an alteration in them due to thermal effect.

The radiations of UniQ™ laser marker are visible and invisible and the Eye receives it

almost in its entirety without using the natural defense provided by pupil reflex! Added

to this is the fact that it is generally very intense, with the result that it can be very

harmful to the eye and present vision problems.

UniQ™ laser markers are classified Class 4 according to applicable norms. This means

that the laser radiation level emitted by these laser markers is dangerous even when not

directly exposed to the laser beam. Partial reflected laser beam or scattered laser radia-

tion surfaces can cause damage to human eye and skin. It is therefore mandatory that

customer apply all applicable regulatory safety protection measures when integrating

these laser markers into their machines including, but not limiting, to individual opera-

tor protection devices such as protective eye goggles, etc.

In addition to possible injuries to human eye and skin, these lasers can ignite flammable

materials and cause fires even at long distances.

UNIQ™

WARNING: Directly viewing a laser beam can cause irreversible damage to

human eye.

WARNING: Viewing of a reflected laser beam can cause irreversible dam-

age to human eye. The use of accessory external optics may increase the

risk of damage.

Table of Contents