94
LASER RADIATION
Laser radiation is an electromagnetic emission with a micrometric wavelength which ranges from the long
infrared (CO
2
Laser), close infrared (Nd Laser: Yag, Nd: YVO
4
), visible (He Laser: Ne or Argon) and
ultraviolet (excimer laser).
It should be considered non-Ionizing Radiation. In the Vlase
TM
marking system, the emission of a crystal bar
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 projects from the semi-reflecting front
mirror. The radiation (which we can imagine as a “Beam of invisible light”) is then Collimated and Focalized
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 the Vlase
TM
marking system 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.
WARNING!
Directly viewing a laser beam
can cause irreversible damage
to vision.
To prevent permanent damage to vision, a few precautions must be taken.
All individuals who may be exposed to dangerous levels of laser radiation, must know that the laser is active
and wear protective goggles if necessary.
Due to its high power, the laser integrated in the Datalogic system provokes reflected laser light from flat
surfaces. Reflected light is potentially dangerous for the eyes and skin. Electromagnetic emission with a
micrometric wave length is placed in long infrared, and is therefore invisible, thus it is not clear where
reflected beams are aimed.
WARNING!
It is indispensable to protect yourself from reflected light beams
, because they can be
sufficiently intense to create permanent injury to the eyes or skin.
In addition to possible injury to the eyes or skin, direct laser emission can cause flammable materials to burn
like organic solvents (alcohol, acetone) or gasoline and cause fabric and clothing to burn.
WARNING!
This marking system is classified as
Class 4
. Class 4 includes lasers which can produce risks, not
only from
direct
or
reflected
radiation, but also from
scattered
radiation! The laser sources may be
a significant risk for the skin and risk of burning flammable materials.
Summary of Contents for VLASE IR 1PWX-TLS2
Page 1: ...USER S MANUAL VLASETM IR ...
Page 34: ...VLASETM IR 34 2 2 6 CONNECTION EXAMPLES Figure 27 Connection examples ...
Page 85: ...85 EXTERNAL LABEL PLACING Figure 67 Positioning of external labels rack ...
Page 86: ...86 Figure 68 Positioning of external labels resonator ...
Page 90: ...90 BLOCK DIAGRAM VLASETM SAFETY LOGIC DETAILS FOR AUTOMATIC PRODUCTION LINE ...
Page 108: ...108 APPENDIX G MECHANICAL DRAWINGS ...
Page 109: ...109 NOTE Please refer to Datalogic website for detailed drawings ...
Page 112: ......