Power stability, linewidth, beam quality
MDL-DF-808CW structured line projection
808 nmThe MDL-DF-808 is a CW line laser with 808 nm wavelength options and output up to 20 W, depending on wavelength. TTL or analog up to 30 kHz. Select a listed wavelength, fan angle and power configuration for the required working distance.

Structured illumination
A line matched to the measurement
The line optic spreads CW light across a surface for imaging, profiling and alignment. Specify the fan angle, line width and usable line length at the actual working distance. Total source power alone does not define illumination along the line.
This 808 nm platform offers 75°, 90° or 110° fan angles. Confirm camera response, filter bandwidth and line width at the working distance.
Compare all seven line-laser platforms →Specifications
MDL-DF-808
15 specification rows
| Wavelength options (nm) | 808 |
|---|---|
| Output / average power | Up to 20 W; wavelength-dependent |
| Operating mode | CW; TTL or analog modulation |
| TTL / analog modulation | TTL or analog up to 30 kHz |
| Fan angle | 75–110°; discrete options |
| Fan angle options | 75°, 90°, 110° |
| Line uniformity | 80% (luminance uniformity) |
| Straightness error | <0.5% |
| Power stability | <1%, <2% or <3% RMS over 4 hours; select configuration |
| Integration | Independent cooling; separate driver |
| Head dimensions (mm) | 199 × 117 × 79.5 |
| Power supply | PSU-W-LED / PSU-W-FDA: 100–240 V AC |
| Operating temperature | 10–35 °C; specifications tested at 25 °C |
| Storage temperature | -20 to +80 °C |
| Humidity | <90%, non-condensing |
Wavelength and power configurations
These are discrete wavelength choices. The 20 W platform maximum applies to the configurations shown below; the wavelength span does not imply continuous tuning. Confirm power after the selected line optic and any protective window.
| Wavelength | Typical tolerance | Maximum output power |
|---|---|---|
| 808 nm | ±3 nm | 20 W |
Applications
Measure with a projected line
Choose the source and line optic around the camera, surface, working distance and measurement geometry.
3D scanning & dimensional inspection
A camera observes the projected line across the surface to measure shape, height, flatness and dimensions with a calibrated triangulation geometry.
Plan the measurement →Weld seam tracking & positioning
The projected line reveals joint edges and height changes so a vision system can estimate the seam position before or beside the welding process.
Plan the measurement →Road, rail & tunnel inspection
A projected reference line supports profile measurements and alignment checks on roads, rails and tunnel surfaces as part of a calibrated inspection system.
Plan the measurement →What do you need?
Tell us the wavelength, output power, fan angle, working distance, line width and camera timing you need, and we'll reply with the matching configuration and lead time.
Model selection
Nearby series comparison
Compare MDL-DF-808 with the closest available models in the CW Lasers family.
| Selection parameter | MDL-DF-808 (current) | OEM-MF | MDL-III |
|---|---|---|---|
| Wavelength | 808 nm | 375–1550 nm | 375–1550 nm |
| Optical power / pulse energy | Up to 20 W; wavelength-dependent | Up to 15 W; wavelength-dependent | Up to 2.5 W; wavelength-dependent |
| Operating mode / pulse width | CW; TTL or analog modulation | CW; TTL or analog modulation | CW; TTL or analog modulation |
Related cw lasers
Compare the MDL-DF-808 with nearby cw lasers across the wavelength range.

