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Page
51
of
51
Report
No.JSH05090075-001
IEC 60825-1
Clause
Requirement – Test
Result - Remark
Verdict
TRF No: IEC/EN 60065D
TRF originator BEAB
Details of measurement procedure and measurement results:
Step
specified / measured / calculated
unit
Classification, Laser Class
1
-----
Typical wavelength of laser diode
λ = 795 (CD)
λ = 658 (DVD)
nm
nm
Emission duration
t = ∞(see 9.4)
s
Time basis
T = 100
s
Size of apparent source
assumed extended source at outside
mm
Angular subtense
α < αmin
mrad
Limiting angular subtense
α
min
= 1.5
mrad
Angle of acceptance
α
max
= 100
mrad
Diameter of aperture stop
d = 7
mm
Distance of aperture stop to source
r = 14
mm
Calculation of AEL (Class as above) :
(Radiant Power
[W]
)
Used formula
(CD)Class 1: 3.9 x 10
-4
C
4
C
7
(DVD)Class 1: 3.9 x 10
-4
W
W
Used correction factors
C
4
=10
0.002(
λ
-700)
=1.55
C
7
=1
Accessible emission limit
(CD)Class 1: AEL
radiant
= 0.605
(DVD) Class 1: AEL
radiant
= 0.390
mW
mW
Measurement results:
Class 1
Normal condition
(CD)Pm
= 0.052
(DVD) Pm
= 0.053
mW
mW
Abnormal condition:
Total output power
(CD)Pm
= 0.234
(DVD) Pm
= 0.258
mW
mW
