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Messkollimator Definition

Collimator
(n.) A telescope arranged and used to determine errors of collimation, both vertical and horizontal.
Collimator
(n.) 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
Focal
(a.) Belonging to,or concerning, a focus

focal collimator / focal collimators Bedeutung

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
collimator a small telescope attached to a large telescope to use in setting the line of the larger one
focal distance
focal length
the distance from a lens to its focus
focus
focusing
focussing
focal point
direction centering
the concentration of attention or energy on something, the focus of activity shifted to molecular biology, he had no direction in his life
focus
focal point
a point of convergence of light (or other radiation) or a point from which it diverges
focal ratio
f number
stop number
speed
the ratio of the focal length to the diameter of a (camera) lens system
cortical epilepsy
focal epilepsy
epilepsy in which the attacks begins with an isolated disturbance of cerebral function (as a twitching of a limb or an illusory sensation or a mental disturbance)
focal seizure transitory disturbance in motor or sensory function resulting from abnormal cortical activity
focal infection bacterial infection limited to a specific organ or region especially one causing symptoms elsewhere
focus
focal point
nidus
a central point or locus of an infection in an organism, the focus of infection
focal having or localized centrally at a focus, focal point, focal infection
focal of or relating to a focus, focal length
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