Infrared Semi-telecentric Machine Vision Laser Line with uniform intensity distribution

Series 13LT/13LTM

Machine Vision Laser Line series 13LT (IR)
Machine Vision Laser Line series 13LT (IR)
Representative product images. Individual product images are found on the individual product pages.


Infrared semi-telecentric machine vision laser line with uniform intensity distribution. This includes lasers of series 13LT/13LTM. Both series are available as Micro (smaller line widths) or Macro version (extended depth of focus).
  • Semi-telecentric
  • Uniform intensity distribution
  • Laser Line Generator series 13LT
    • Line length 15 mm
    • Line widths starting at 12 µm
    • Wavelengths 405 - 940 nm
    • Laser powers up to 67 mW
  • Laser Line Generator series 13LTM
    • Depth of focus 7 to 35 times larger than for corresponding Micro Laser Line Generator
    • Line length 15 mm
    • Line widths starting at 39 µm
    • Wavelengths 405 - 940 nm
    • Laser powers up to 30 mW
  • IR Machine Vision Laser
  • Micro Line Generator for small laser line widths and high power density in the focal plane
  • Macro Line Generator for extended depth of focus
IR Machine Vision Laser


The laser diode beam sources series 13LT/13LTM produce semi-telecentric laser lines with a uniform intensity distribution along the laser line.

The laser diode beam sources series 13LT/13LTM produce a semi-telecentric laser line with 15 mm line length. The intensity profile is approx. uniform in line direction. More precisely, it is Gaussian clipped by an aperture with an edge intensity of typ. 80%. The line width is constant along the laser line. Across the laser line the intensity distribution is Gaussian for lasers of series 13LT and approx. Gaussian for lasers of series 13LTM.

Micro and Macro lasers
The lasers of series 13LT are Laser Micro Line Generators designed to produce lines with small line width. They have a small depth of focus (in this case the depth of focus is the Rayleigh range). Laser Macro Line Generators like the corresponding lasers of series 13LTM have common basic optical features but are designed to generate laser lines with an extended depth of focus.

The lasers have 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. Optionally the lasers can be equipped with RS232 serial interface for laser control and data read-out. 

Adjusting the working distance
For lasers of series 13LT/13LTM the working distance is fixed. A fine-adjustment of the distance between laser and target is recommended for fine-focusing in order to achieve minimal line width.

Optional: Low Noise Version
The laser series 13LT/13LTM is also available as a Low Noise version LNC-13LT (Micro) and LNC-13LTM (Macro). These 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 lines and spots. (Po is the maximum specified output power.)

These high quality lasers can e.g. be used for machine vision applications, laser triangulation or laser light sectioning.