Col"li*ma`tor (?), n.

1. Astron.

A telescope arranged and used to determine errors of collimation, both vertical and horizontal.

Nichol.

2. Optics

A tube having a convex lens at one end and at the other a small opening or slit which is at the principal focus of the lens, used for producing a beam of parallel rays; also, a lens so used.

 

© Webster 1913.

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