OPTICS

Strongly effecting the image quality

Opto Engineering LT PR SM - 3D LED Pattern Projectors with Tilt and Focus Adjustment

The Opto Engineering LT PR SM are LED pattern projectors specifically designed for the most demanding 3D profiling and measurement applications. Triangulation techniques require that structured light be directed onto a sample at a considerable angle from vertical. Tilting the light source pattern becomes essential to ensure that patterned light is properly and homogeneously focused across the entire sample surface. The Opto Engineering LT PR SM pattern projectors integrate a precision tilting mechanism based on the Scheimpflug criterion. This also ensures that the focus does not change when the pattern is tilted. Moreover, the internal focus mechanism offers the maximum optical throughput. The projected light path is effectively coupled to the pupil aperture of any C mount lens.

The projection pattern inside the unit can be changed and integrated with ease: just remove the C-mount adaptor by loosening the set-screws and fix the pattern by screwing the retaining ring.

Implementation

The Opto Engineering LT PR SM units can be interfaced with any type of optics, but the best results are achieved with bi-telecentric lenses. The projection area is undistorted since tilting the pattern only causes a linear extension along one direction. Very good results can also be obtained with zero distortion macro lenses; here, the magnification changes along both axes, but image resolution and distortion are such that 3D reconstruction can still be easily performed. With non bi-telecentric lenses, a square pattern becomes a trapezoid in the projection plane.

Models

  • Light colour, peak wavelength and output flux:
    • Red, 630 nm, >11,4 lumen
    • Green, 520 nm, >19 lumen
    • Blue, 460 nm, > 4.5 lumen
    • White, >21 lumen
  • Minimum DC voltage: 12.0 VDC
  • Maximum DC voltage: 24.0 VDC
  • Power consumption: <2 Watt

Contact us

Technical Support

+44 1252 7800 60
+44 1252 7800 01
support@stemmer-imaging.co.uk

Sales / Consulting

+44 1252 7800 00
+44 1252 7800 01
sales@stemmer-imaging.co.uk

Callback Service

If you have a question or need some information please provide us some data. Our sales team will callback as soon as possible!

Callback Service

Colour blue

OE LT PR SM HP3W-B

3D Scheimpflug LED Pattern Projector

  • LED color blue, 460 nm (peak)
  • Minimum DC Voltage: 12 V
  • Maximum DC Voltage: 24 ...
Colour green

OE LT PR SM HP3W-G

3D Scheimpflug LED Pattern Projector

  • LED color green, 520 nm (peak)
  • Minimum DC Voltage: 12 V
  • Maximum DC Voltage: 24 ...
Colour red

OE LT PR SM HP3W-R

3D Scheimpflug LED Pattern Projector, red

  • LED color red, 630 nm (peak)
  • Minimum DC Voltage: 12 V
  • Maximum DC Voltage ...
Colour white

OE LT PR SM HP3W-W

3D Scheimpflug LED Pattern Projector

  • LED color white
  • Minimum DC Voltage: 12 V
  • Maximum DC Voltage: 24 V
  • Power Consumption ...
File Topics Size
Opto Engineering LT PR SM 3W B
Data sheets
753.3 KB
Opto Engineering LT PR SM 3W G
Data sheets
753.0 KB
Opto Engineering LT PR SM 3W R
Data sheets
753.0 KB
Opto Engineering LT PR SM 3W W
Data sheets
752.9 KB
Opto Engineering LT PR SM Series
Data sheets
951.5 KB
Opto Engineering TC SM Application Notes
Data sheets
1.5 MB