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  • bench
  • optical bench A support for optical parts comprising a solid bed that permits precise longitudinal movement of one component relative to the others, and a number of sliders equipped with holders for lenses, lamps, apertures, eyepieces, ground glass, etc. Scales...
  • nodal bench A bench with instrumentation including a collimator, a microscope, positioners and a nodal slide used to rotate a lens about its second nodal point. The nodal bench is used to determine the cardinal points of a lens so that measurements of focal...
  • lens bench
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