Start // Laser for Machine Vision // Llg // Low Noise Macro Line Generator with a fan angle by Schäfter + Kirchhoff - LNC-5LMM8-S325-1+56CM-639-7-H18-A8-H-6


Low Noise Macro Line Generator with a fan angle


Laser line with a fan angle, Gaussian intensity distribution and extended depth of focus.
  • Line length: 47.5 mm
  • Line width: 302 µm
  • Wavelength: 639 nm
  • Working distance: 308 mm
  • Depth of focus: 301 mm
  • Low noise laser module (0.1 % RMS, @<1 MHz)
  • Macro Line Generator for extended depth of focus
  • Low noise, low coherence laser module (typ. < 0.15 % of Po (RMS, Bandwidth < 1 MHz))
Macro Line Generator for extended depth of focusLow noise, low coherence laser module


The laser diode beam source type LNC-5LMM8-S325-1+56CM-639-7-H18-A8-H-6 has a fan angle of 8° and an extended depth of focus.

The intensity profile is Gaussian in line direction clipped by an aperture with an edge intensity of 38 %. The line width is constant along the laser line. Across the laser line the intensity distribution is approx. Gaussian.

The laser has integrated electronics type H for control of the laser output power. It is a low noise laser source (0.1 % RMS,@<1 MHz) with reduced coherence length and operates mode-hopping free. Due to the reduced coherence length the speckle contrast might be lowered. Please note that this effect is smaller for smaller lines and spots. 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 Macro Line
639 +10/-10 nm
Laser output power
7 mW
Laser safety class
Fan angle α
8 deg
Focussing range
250-450 mm
Working distance
308 mm
Line length
47.5 mm
Line width
0.302 mm
Depth of focus
301 mm
Edge intensity
38 %
Diameter laser module
25/28 mm
Module length
88 mm
Installation length
426 mm
Cable length
1.5 m
Connector type
Lumberg SV50 IEC 61076-2-106
Supply voltage
5 ± 0.2 V
Max. current consumption
0.25 A
Working temperature
0 - 40 °C
Modulation inputs
Input resistance
22 kOhm
22 kOhm
Max. modulation frequency
100 kHz
100 kHz
Modulation delay ON/OFF
2/0.3 µs
1.5/0.1 µs
Rise / Fall time
1/1 µs
1/1 µs
Noise (< 1 MHZ RMS)
0.1 %


Hex key WS 1.5
Screwdriver WS 1.2
Mounting Console with flat base plate
Mounting Console with base plate with dovetail profile
Power Supply 5 V