Definition of Colimation
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.
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.
- Webster's Unabridged Dictionary (1913)
- the act of collimating or something collimated
- The Nuttall Encyclopedia
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