Laser Power Test

CDRH Laser Devices Class IIIa Power Test

Complied FDA Performance Standards for Laser Products

The CDRH (Center for Devices and Radiological Health)- 21CFR1040.10 procedure for measuring laser output is the energy detectable through a circular aperture stop having a diameter of 7 mm at a distance of 20 cm from the probe tip or laser diodes.

Konftec's visible red laser diode (typical wavelength of 660nm laser diode) equipped in the Klas series is with the specification of beam divergence 9° (Parallel Angle) x 19° (Perpendicular Angle). Because of the divergence of the beam, the distance and the aperture used, the energy detectable falls within the Class IIIa (wavelength 400nm ~ 710nm visible laser with radiation power <5 mW) laser product standard.

The typical average power for all 50mW and some 100mW laser devices shown on the warning logotype in our brochure and user's guide is <5 mW/cm² as measured in accordance with the procedure described above.

Klas Series: Klas-A, Klas-D, Klas-E and Klas-S
Description	NCDRH Test Distance	Parallel Angle	Perpendicular Angle	Horizontal Length	Vertical Length	Radiation Area	Laser Diode Output Power	Laser End Output Power	Test Output Power
Symbol	H	θ//	θ⊥	Dhs	Dvs	A	Pdiode	P0	P1
Unit	(cm)	(°)	(°)	(cm)	(cm)	(cm²)	(mW)	(mW)	(mW/cm²)
Klas-A50	20	9	19	3.15	6.69	16.55	50	47.5	2.87
Klas-D50							50	40	2.42
Klas-D61							100	80	4.83
Klas-E50							50	40	2.42
Klas-E61							100	80	4.83
Klas-S50							50	30	1.81
Klas-S61							100	60	3.63