Start // Laser for Machine Vision // Llg // Compact Micro Line Generator with a fan angle by Schäfter + Kirchhoff - 5LM8-S50+25CM-639-17-H18-A8-S-6


Compact Micro Line Generator with a fan angle



Compact laser line with a fan angle and Gaussian intensity distribution.
  • Line length: 6.6 mm
  • Line width: 21 µm
  • Wavelength: 639 nm
  • Working distance: 42 mm
  • Micro Line Generator for small laser line widths and high power density in the focal plane
Micro Line Generator for small laser line widths and high power density in the focal plane


The laser diode beam source type 5LM8-S50+25CM-639-17-H18-A8-S-6 has a fan angle of 8°.

The intensity profile is Gaussian in line direction clipped by an aperture with an edge intensity of 44 %. The line width is constant along the laser line. Across the laser line the intensity distribution is Gaussian.

The laser has integrated electronics type S for control of the laser output power. The output power can be controlled using the modulation input ports (TTL and analog) or manually using the potentiometer.

The working distance can be adjusted by adjusting the focus setting. Please note that beam parameters like line length and line width increase proportionally to the working distance.

A fine-adjustment of the distance between laser and target is recommended for fine-focusing.

Technical data


Order Code
Line profile
Gaussian Intensity Distribution
Line type
Laser Micro Line
639 +10/-10 nm
Laser output power
17 mW
Laser safety class
Fan angle α
8 deg
Focussing range
30-65 mm
Working distance
42 mm
Line length
6.6 mm
Line width
0.021 mm
Rayleigh range
1.14 mm
Edge intensity
44 %
Diameter laser module
12 mm
Module length
64.9 mm
Installation length
136.9 mm
Cable length
1.5 m
Connector type
Lumberg SV50 IEC 61076-2-106
Supply voltage
5 ± 0.25 V
Max. current consumption
0.25 A
Working temperature
0 - 40 °C
Modulation inputs
Input resistance
22 kOhm
22 kOhm
Max. modulation frequency
50 kHz
1000 kHz
Modulation delay ON/OFF
4/0.5 µs
0.05/0.05 µs
Rise / Fall time
5/4 µs
0.1/0.02 µs


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Eccentric key with a stroke of ± 0.5 mm.
Alternative eccentric key with long handle with a stroke of ± 0.5 mm.
Screwdriver WS 1.2
Power Supply 5 V