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Low Noise Laser Focus with an elliptical beam profile

Machine Vision Laser Focus Series LNC-13M/LNC-13MM

Low Noise Machine Vision Laser Focus series LNC-13M+56CM
Low Noise Machine Vision Laser Focus series LNC-13MM+56CM
Representative product images. Individual product images are found on the individual product pages.

Features

Low noise machine vision laser focus with elliptical Gaussian beam profile. This includes lasers of series LNC-13M/LNC-13MM. All series are available as Micro (smaller line widths) or Macro version (extended depth of focus).
  • Spot with elliptical beam profile
  • Laser Focus Generator series LNC-13M
    • Spot diameter starting at 9x21 µm
    • Wavelengths 405 - 940 nm
    • Laser powers up to 42 mW
    • Low noise Laser Module (typ. < 0.15 % of Po (RMS, Bandwidth < 1 MHz))
  • Laser Focus Generator series LNC-13MM
    • Spot diameter starting at 20 µm
    • Wavelengths 405 - 940 nm
    • Laser powers up to 33 mW
    • Low noise Laser Module (typ. < 0.15 % of Po (RMS, Bandwidth < 1 MHz))
  • Optional Low Noise Version: 
    • Series 13M (Micro) and series 13MM (Macro)


  • Micro Line Generator for small laser line widths and high power density in the focal plane
  • Macro Line Generator for extended depth of focus
  • Low noise, low coherence laser module (typ. < 0.15 % of Po (RMS, Bandwidth < 1 MHz))

Description

The laser diode beam sources series LNC-13M/LNC-13MM produce an elliptical laser spot.

LNC-13M/LNC-13MM
The laser diode beam source series LNC-13M produces an elliptical laser spot with elliptical Gaussian intensity distribution. The laser diode beam source series LNC-13MM produces an often circular (sometimes slightly elliptical) laser spot with extended depth of focus. The beam profile is approx. Gaussian. More precisely it has an elliptical intensity distribution clipped by a circular aperture.

Micro and Macro lasers
The lasers of series LNC-13M are Laser Micro Focus Generators designed to produce spots with small spot size. They have a small depth of focus (in this case the depth of focus is the Rayleigh range). Laser Macro Focus Generators like the corresponding lasers of series LNC-13MM have common basic optical features but are designed to generate laser spots with an extended depth of focus.

Low noise
The lasers are low noise (typ. < 0.15 % of Po* (RMS, Bandwidth < 1 MHz)) and operate mode-hopping free. Due to the reduced coherence length the speckle contrast is lowered. However this effect is smaller for smaller spots. (* Po is the maximum specified output power.)

Electronics
The laser has integrated electronics 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.

Adjusting the working distance
For lasers of series LNC-13M/LNC-13MM 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 in order to achieve minimal spot size.

Standard Version
The laser series LNC-13M/LNC-13MM is also available as a standard version 13M (Micro), 13MM (Macro). Please note that these differ in electronics type, but are also available with RS232 interface.

These high quality lasers can e.g. be used for machine vision applications.

Technotes