collimator(redirected from automatic collimator)
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A device capable of collimating radiation, as a long narrow tube in which strongly absorbing or reflecting walls permit only radiation traveling parallel to the tube axis to traverse the entire length.
1. (General Physics) a small telescope attached to a larger optical instrument as an aid in fixing its line of sight
2. (General Physics) an optical system of lenses and slits producing a nondivergent beam of light, usually for use in spectroscopes
3. (General Physics) any device for limiting the size and angle of spread of a beam of radiation or particles
col•li•ma•tor(ˈkɒl əˌmeɪ tər)
1. a fixed telescope for use in collimating other instruments.
2. an optical system that transmits parallel rays of light.
3. a device for producing a particle beam in which all the particle paths are parallel.
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|Noun||1.||collimator - a small telescope attached to a large telescope to use in setting the line of the larger one|
|2.||collimator - optical device consisting of a tube containing a convex achromatic lens at one end and a slit at the other with the slit at the focus of the lens; light rays leave the slit as a parallel beam|
optical device - a device for producing or controlling light