IEC 60825-1:2007/COR1:2008

IEC 60825-1
(Second edition – 2007)
Safety of laser products –
Part 1: Equipment classification and requirements

CORRIGENDUM 1
3.37
human access
In item b), instead of:
“.and a length of up to 100 mm.”
read:
“and a length of 100 mm.”
8.3 Classification rules
In the second sentence of Note 1 of item c), instead of:
“.a beam divergence in any plane of 1,5 mrad or less.”
read:
“.a beam divergence of 1,5 mrad or less.”
In item f) 3) b), instead of:
“For varying pulse widths or varying pulse durations:”
read:
“For varying pulse widths or varying pulse intervals:”
Table 4 –Accessible emission limits for Class 1 and Class 1M laser products and C = 1
In the final column for the wavelength range 400 nm to 500 nm, in the expression for the
Class 1 and Class 1M accessible emission limit, instead of:
–5
3,9 × 10 C W
read:
–5
3,9 × 10 C W
as follows:
–3
3,9 × 10 J
–5
3,9 × 10 C W
–3
3,9 × 10 C J
–4 0,75
7 × 10 t J
c
and
–4
3,9 × 10 W
August 2008
Table 5
In the title of the table, instead of:
Table 5 – Accessible emission limits for Class 1 laser products in the wavelength range from
400 nm to 1 400 nm (retinal hazard region): extended sources
read:
Table 5 – Accessible emission limits for Class 1 and Class 1M laser products in the
wavelength range from 400 nm to 1 400 nm (retinal hazard region): extended sources
Table 11 – Measurement aperture diameters and measurement distances for the default
(simplified) evaluation
In the table header, the vertical line to the left of the Condition 3 header is misaligned with the
vertical line for the rows below. Replace this header as follows:
Condition 1 Condition 2
Condition 3
applied to collimated applied to diverging
beam where e.g. beam where e.g. applied to determine irradiation relevant

telescope or binoculars magnifying glasses, for the unaided eye and for scanning
may increase the microscopes may beams
hazard increase the hazard
Aperture Aperture Aperture stop/
Distance Distance
Distance
stop stop
Wavelength
limiting aperture
mm mm
mm
nm
mm mm
mm
9.3.3 Evaluation condition for extended sources
In the first paragraph of item a), instead of:
“. the aperture diameters as specified in Table 11.”
read:
“. the aperture diameters and minimum measuring distances as specified in Table 11.”
Table A.3 – Maximum permissible exposure (MPE) of the skin to laser radiation
-3
In the table, the vertical line for the wavelength region 400 nm to 1400 nm, 10 s, should be
-7
fixed at 10 s.
Thus, instead of:
Wave- Exposure time t
s
length λ
nm
–9 –9 –7 –7 –3 –3 3 3
<10 10 to 10 10 to 10 10 to 10 10 to 10 10 to
3×10
–2
11 –2 –2 4 0,25 –2
400 to 700 2 000 W·m
2×10 W·m 200 J⋅m 1,1×10 t J⋅m
11 –2 –2 4 0,25 –2 –2
700 to 1 400
2×10 C W·m 200 C J⋅m 1,1×10 C t J⋅m 2 000 C W⋅m
4 4 4 4
read:
August 2008
Wave- Exposure time t
length λ s
nm
–9 –9 –7 –7 –3 –3 3 3
<10 10 to 10 10 to 10 10 to 10 10 to 10 10 to
3×10
–2
11 –2 –2 4 0,25 –2
400 to 700 2 000 W·m
2×10 W·m 200 J⋅m 1,1×10 t J⋅m
11 –2 –2 4 0,25 –2 –2
700 to 1 400 2×10 C W·m 200 C J⋅m 1,1×10 C t J⋅m 2 000 C W⋅m
4 4 4 4
A.3 Repetitively pulsed or modulated lasers
In item c) 2), instead of:
“For varying pulse widths or varying pulse durations:”
read:
“For varying pulse widths or varying pulse intervals:”
Figure B.1 – Flowchart guide for the classification of laser products from supplied
output parameters
In the fifth row of the flowchart, in the box with the text beginning “Choose the smallest value of
AEL and AEL ”,
single s.p.T.
instead of:
“Choose the smallest value of AEL and AEL for comparison with the accessible emission
single s.p.T
level of a single pulse in box”
read:
“Choose the smallest value of AEL and AEL for comparison with the accessible emission
single s.p.T
level of a single pulse”
B.3 Examples / Example B.3.1
In the second paragraph of the Solution, instead of:
“For Class 3B, Table 8 gives.”
read:
“For Cla
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