Start // Laser for Machine Vision // Llg // 5M-S88+55CM-639-18-H18-A8-C-6


Compact Laser Micro Focus Generator with elliptical Gaussian beam profile


Compact Laser spot with elliptical Gaussian beam profile.
  • Spot diameter: 0.015 x 0.038 mm
  • Wavelength: 639 nm
  • Working distance: 82 mm
  • Micro Focus Generator for small spot widths and high power density in the focal plane


The laser diode beam source type 5M-S88+55CM-639-18-H18-A8-C-6 produces an elliptical laser spot with elliptical Gaussian intensity distribution.

The laser has integrated electronics type C 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 the spot diameter increases 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
639 +10/-10 nm
Laser output power
18 mW
Laser safety class
Focussing range
70-125 mm
Working distance
82 mm
Spot height
0.038 mm
Spot width
0.015 mm
Rayleigh range
0.518 mm
Diameter laser module
25/28 mm
Module length
73.1 mm
Installation length
185.1 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
1/0.5 µs
2/1 µs
Rise / Fall time
3/2 µs
3/2 µs


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