catflap.org Online Dictionary Query

  pseudo-lens /sˈuːdəʊ lˈɛnz/
  lochförmige Blende
     Synonyms: pinhole diaphragm, pinhole
  
   see: diaphragm stop, lens stop, diaphragm, stop, diaphragm stops, lens stops, diaphragms, stops, aperture diaphragm, aperture stop, field stop, flare stop, focussed diaphragm, focused diaphragm, Hartmann diaphragm, critical diaphragm, critical aperture, lamellar diaphragm, iris diaphragm, natural diaphragm, telecentric stop