Safety
Atmospheric Single-Arm Robot
Laser Hazards
User’s Manual
Brooks Automation
2-20
Revision 1
Laser Hazards
Brooks Automation robots with or without laser scanners are sold solely as a compo-
nent intended for incorporation into another product. The laser scanner is used to
detect the presence of wafers and whether or not they are cross-slotted.
When approved Laser Scanning devices are installed as an option, the Brooks Auto-
mation Robotic Systems are CLASS 1 Laser Products, in accordance with CDRH Per-
formance Standard 21 CFR Chapter 1, Sub-Chapter J.
Although Class 1 lasers do not pose a hazard, avoid staring into the laser beam or
direct exposure to the laser beam. Two warning labels are affixed to the laser scanner.
End users reselling equipment containing laser devices must submit their own CDRH
filing, Laser Product Report, to comply with 21 CFR Chapter 1, Sub-chapter J.
WARNING
Avoid exposure to potential laser hazards. Do not look directly at or
into the laser beam (no matter what class of laser), follow any posted
laser warnings or labels, and do not attempt to service, repair, or
remove the protective housing of the laser device.
The following describes the laser Class I classification, general safety issues and laser
handling precautions. Laser diodes have three properties that distinguish them from
standard light emitting diodes. First, they can produce much brighter beams of light
(by a factor of 1000 or more). Second, the beam from a laser can be very narrow
(where the spot of light is almost the same size whether projected a few inches or
many feet). Third, laser light is a very pure color with a single wavelength, which
makes the spot look speckled and shimmery.
National and international standards classify low power laser systems as the follow-
ing:
Class I: Very low power (<CW: 0.4µWatts at visible wavelengths) -- does not
emit laser radiation at known hazard levels (eye damage occurs at 1µW).
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