FeaturesLaser spot with approx. circular beam profile and extended depth of focus.
- Spot diameter: 0.075 x 0.065 mm
- Wavelength: 639 nm
- Working distance: 233 mm
- Depth of focus: 11.1 mm
- Low noise laser module (0.1 % RMS, @<1 MHz)
Low Noise Laser Macro Focus Generator with circular beam profile
The laser diode beam source type LNC-13MM-S250-4+56CM-639-4-H18-T15-H-6 produces a circular 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.
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 the spot diameter increases proportionally to the working distance. A fine-adjustment of the distance between laser and target is recommended for fine-focusing.