Noun
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.
Source: Webster's dictionaryAs modern sextants seldom use adjustable telescopes they do not need to be corrected for collimation error. Source: Internet
Estimates of rate of occurrence of short-duration GRBs are even more uncertain because of the unknown degree of collimation, but are probably comparable. Source: Internet
If they separate there is collimation error. Source: Internet
The degree, character, and duration of vision impairment caused by eye exposure to laser light varies with the power of the laser, the wavelength(s), the collimation of the beam, the exact orientation of the beam, and the duration of exposure. Source: Internet