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LED product safety precautions
iii
Laser products Preventive safety measures for users (summary)
[from JIS “Safety of laser products”]
Classification
Required item/
Article
Class 1 Class 1M
Class 2 Class 2M
Class 3R Class 3B Class 4
Laser
safety manager
10.1
Not necessary, but it is recommended that one be
appointed in the case of applications where laser beams
can be directly observed
Not necessary in
the case of
visible light
beams.
Necessary in the
case of invisible
light beams.
Necessary
Remote
interlock
10.2
Not necessary
Connected to a room or door
circuit
Key control
10.3
Not necessary Remove the key when not in use
Beam attenuator
10.4
Not necessary
Avoid careless irradiation during
use
Emission
indication device
Not necessary
Indicates that
laser is operating
at an invisible
wavelength.
Indicates that laser is operating
Warning
indication
10.5
Not necessary
Follow warning indication
preventive measures
Beam path
10.6
Not necessary
Same as
Class 3B for
Class 1M
Not necessary
Same as
Class 3B for
Class 2M
Terminate beam at end of effective length
Specular
reflection
10.7
No necessary
items
Same as
Class 3B for
Class 1M
No necessary
items
Same as
Class 3R for
Class 2M
Avoid unintended reflection
Eye protection
10.8
No necessary items
Necessary if it is not possible to
execute technical and management
procedures, and if MPE (max.
permissible exposure) is exceeded
Protective
clothing
10.9
No necessary items
Sometimes
necessary
Specific
instructions are
necessary
Training
10.10
No necessary
items
Same as
Class 3R for
Class 1M
No necessary
items
Same as
Class 3B for
Class 2M
Necessary for all operators and maintenance
personnel