Tunable Telescope Configuration with Pinhole - 1’’/25mm-1’’/25mm Lens Based (90821)

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Beam Filtering apparatus is based on an optical telescope configuration that is focused onto a pinhole that filters the higher-order spatial modes of the beam. The 90821/2/3 telescope is based on two lenses (1’’/25mm or 2’’/50mm) with various magnifications. The pinhole is also positioned along the optical grid allowing an Inline configuration.


  • Beam Filtering
  • Microscopy
  • Holography
  • Beam Shaping