Laser Area; Laser Shutter - Aerotech AGV3D Series Hardware Manual

Laser Area

Laser Area
The area in which the maximum permitted radiation value can be exceeded is defined as the laser area. In
general, a laser area is applicable to Class IIIa, IIIb and IV laser systems. A laser area may also be produced
by focusing the beam of a Class I, IIa, or II laser device.
The AGV3D has the capability of aiming the laser beam over an approximately pyramidal volume. When the
scan head is used in conjunction with a laser device capable of generating a sufficiently intense beam, a
laser area will be produced that includes the aiming volume as well as the reflections from all objects that
can be exposed to the radiation. It is important to note that even apparently diffuse surfaces can reflect laser
radiation and a laser beam that has been reflected several times can still be dangerous.
The laser area must be designated by suitable warning signs or lamps and protected by appropriate shading
and interlock switches.

Laser Shutter

A laser attenuator (beam shutter) is a mechanical or electrical device that blocks the emission of laser
radiation. It is a requirement for most classes of laser systems. The attenuator must be available for use at
all times during operation of the laser system. Power switches and key controls do not satisfy the attenuator
requirement.
The AGV3D scan head does not include a laser attenuator, and therefore it cannot block or weaken the laser
beam. Due to the unique properties of each laser, it is the user's responsibility to incorporate an appropriate
shutter as per any and all applicable regulations in order to prevent unwanted emission of the laser beam.
The beam shutter should be fitted between the laser source and the scan head (refer to
8
Figure 1: Laser Area of an AGV3D Scan Head
AGV3D Hardware Manual
Figure 1).
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