Collimation definition

Collimation





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2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Collimation \Col`li*ma"tion\, n. [Cf. F. collimation, fr. a
     false reading (collimare) for L. collineare to direct in a
     straight line; col- + linea line. Cf. {Collineation}.]
     The act of collimating; the adjustment of the line of the
     sights, as the axial line of the telescope of an instrument,
     into its proper position relative to the other parts of the


     instrument.
     [1913 Webster]
  
     {Error of collimation}, the deviation of the line collimation
        of an astronomical instrument from the position it ought
        to have with respect to the axis of motion of the
        instrument.
  
     {Line of collimation}, the axial line of the telescope of an
        astronomical or geodetic instrument, or the line which
        passes through the optical center of the object glass and
        the intersection of the cross wires at its focus.
        [1913 Webster]

From WordNet (r) 2.0 [wn]:

  collimation
       n : the accurate adjustment of the line of sight of a telescope

















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