collimator

listen to the pronunciation of collimator
English - Turkish
yönlendirici
kolimator
kollimatör
yön verici
(Nükleer Bilimler) kolimatör,ışın ayarlayıcı
kolimatör
paralel ışınları husule getiren ayar aleti
opt yönlendirici
English - English
A small telescope attached to a larger one, used to point it in the correct general direction
A similar device that produces a parallel beam of particles such as neutrons
An optical device that generates a parallel beam of light. Often used to compensate for laser beam divergence
a device which collimates (makes parallel) incoming radiation; some collimators absorb the incoming radiation to ensure the detected photons are from a small angle in the sky, others deflect light to ensure that it is parallel when it hits the detector
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 element which produces a light beam in which the rays are (at least very nearly) parallel
A mechanical device, sometimes called a "slit", installed along the trajectory of a beam to reduce the size of the beam Collimators are also useful for removing stray radiation
A device that produces a parallel beam of radiation This is either done by refraction (as with light), bending the rays until they are parallel using a system of lenses or (as with gamma rays) by absorbing (using a lead grid system) all of those rays that are not travelling parallel to one another
A telescope arranged and used to determine errors of collimation, both vertical and horizontal
An 'Infinity Reference Aiming Point' used for the same purpose as the aiming stakes (posts) but with a greater degree of accuracy
A device that renders divergent or convergent rays nearly parallel
An instument that focuses light into a nearly perfect parallel beam (only a laser can achieve a truly perfect collimated beam) When a reticle is incorporated into the design, a collimator can project an image focused on infininty Such an image can be used to check the focus calibration of lenses, and the ground glass depth on reflex cameras
  A device that renders divergent or convergent rays more nearly parallel (188)  Note:   The degree of collimation (parallelism) should be stated
a movable, solid block of material which can be used to limit beam size or to stop it altogether They are sometimes used as safety system critical devices
{i} telescope used for adjusting other instruments
system for definition of the radiation beam In treatment units this may either be an applicator with a fixed field size (common in low to medium energy x-rays and electron beams) or a set of two orthogonal movable jaws which can define a rectangular field
a device for obtaining a particle beam of limited cross section
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
An optical device which renders rays of light parallel
a small telescope attached to a large telescope to use in setting the line of the larger one
An optical device that generates a parallel beam of light

Related Terms

multileaf collimator
A collimator used in a linear accelerator to provide conformal shaping of beams for radiotherapy. Abbreviation: MLC