Metrology + Testing

Opto Alignment Technology is proud to offer lens characterization services for both IR and visible lens assemblies.  Lens de-center and tilt can be measured optically using the Laser Alignment Station™ and supplied in report or spreadsheet form. Air gaps and center thickness measurements can be performed on lenses transmitting at 1.31µm using a Fogale LenScan fiber optic interferometer integrated with the LAS.  These services are typically utilized for design validation, active or passive alignment, and  quality assurance inspections on prototype lens assemblies.

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Additional Metrology offered by Opto Alignment Technology:

Optical surface accuracy and lens performance qualification:

  • Zygo® and Phase Shift interferometers to measure surface figure errors and transmitted wavefront errors, along with a comprehensive range of transmission spheres and transmission flats when testing spherical and aspheric surfaces or optical systems
  • Optikos™ MTF test bench configurable for finite or infinite conjugates, and on/off-axis testing from the near-UV to near-IR.

Dimensional and optical cosmetic qualification:

  • Laser interferometric height gauge for dimensional measurements, including lens center thickness and assembly airspace measurements to an accuracy of ±0.5 micron.
  • Laser Alignment Stationto measure decentration and wedge of individual components.
  • MIL Spec compatible Scratch-Dig Standards

Other qualification:

  • In addition to the above equipment, Opto Alignment Technology has designed and developed a wide range of custom, NIST-traceable test equipment and methods to meet customers’ unique requirements.