anastigmat

2 definitions found

anastigmat - Collaborative International Dictionary of English v.0.48 :

  anastigmat \anastigmat\ n.
     1. compound lens or lens system designed to be free of
        astigmatism and able to form approximately point images.
        [WordNet 1.5]

anastigmat - WordNet (r) 2.1 (2005) :

  anastigmat
      n 1: compound lens or lens system designed to be free of
           astigmatism and able to form approximately point images