Inspection and alignment of optics for LiDAR and ADAS

Driver-assistance systems rely on a multitude of cameras and optical sensors to increase driving comfort and safety on the road. This involves various optics which are subjected to extensive testing, not least because of the mandatory safety aspects.

The high intrinsic stability and speed of the wavefront measurement enables the use of Optocraft’s test modules for active adjustment and inline inspection as well as the monitoring of manufacturing processes. More extensive (offline) tests also encompass the measurement of wavefront aberrations at field points and the analysis of polarization or chromatic effects.

Compared to classic MTF measurements, knowledge of the wavefront facilitates the identification of possible causes of errors, and provides considerably better options for comparison with simulation data. Wavefront measurement technology is also advantageous when testing flat optics such as functional protective glasses:

  • adjustable wavelength
  • high measuring speed
  • low requirements on stability or vibration isolation

Our solution for inspecting optics for automotive applications

Systems and modules of the SHSInspect family measure the transmitted wavefront, PSF and MTF. Moreover, they provide information on colour aberrations, focal length and polarization effects and enable measurements at field points, from UV (355nm) to SWIR (1700nm).

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