Machine Vision Lenses and Optics - STEMMER IMAGING


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Opto Engineering PCHI

PCHI hole inspection optics for 360° inside view

PCHI optics are designed to enable the perfect viewing of holed objects, cavities and containers.

Unlike common optics or so called "pinhole lenses" which can only image flat fields of view, hole inspection optics are designed to image both the bottom of a hole and its vertical walls.

Thanks to the large view angle (>82°) and innovative optical design, these lenses are compatible with a wide range of object diameters and thicknesses. Hole inspection optics are the solution of choice to inspect different object shapes such as cylinders, cones, holes, bottles or threaded objects.


  • Hole inspection lens
  • Sensor size: 1/3", 1/2", 2/3"
  • Minimum FoV: 10x10 mm (diameter x height)
  • Maximum FoV: 120x190 mm ( diameter x height)
  • Camera mount: C-mount
  • Wavelength: 450- 650 nm
  • Working distance: 5 to 62 mm
  • MTF: @50lp/mm >30 %
  • Aperture: F# 4.7 to 8.3
  • Diameter: 28 mm
  • Length: 102 mm to 108,5 mm