autocollimator


Also found in: Wikipedia.

autocollimator

[¦ȯd·ō′käl·ə‚mād·ər]
(optics)
A device by which a single lens collimates diverging light from a slit, and then focuses the light on an exit slit after it has passed through a prism to a mirror and been reflected back through the prism.
A telescope which has a graduated reticle, enabling an observer to read off the angles subtended by distant objects.
A convex mirror at the focus of the principal mirror of a reflecting telescope, which causes light to leave the telescope in a parallel beam.
A telescope equipped with an eyepiece designed for autocollimation.
Mentioned in ?
References in periodicals archive ?
Tenders are invited for purchase of autocollimator for mechanical engineering lab
Additionally, the 12-angle polygon can be fitted at the centre of the rotary disc, and the photoelectric autocollimator can be used [2].
To ensure high reliability, they should be calibrated using standard instruments such as an indexing table along with an autocollimator (Just et al.
An optical device called an autocollimator is used to analyze the pitch and yaw.
An autocollimator is used to transfer the level to a small, flat mirror probe on a leveling assembly.
The LDS electronic autocollimator is for non-contact angular measurement and alignment tasks for laboratory and industrial settings.
Another metrology instrument, the autocollimator, checks for angular specification conformance in accuracy and repeatability as well as pitch, roll, and yaw.
Tenders are invited for Supply Of Angle Dekkor Autocollimator
In an attempt to shed some light on these errors, we have compared autocollimator measurements to angle measurements made with a Fizeau phase-shifting interferometer.
The LDS electronic autocollimator, for non-contact angular measurement and alignment tasks, is a calibrated measurement tool that offers quick set-up and ease of use, and provides a cost-effective solution in a portable package.
Hardly a dimenewcomer to machine-tool calibration, the autocollimator was created for this use in the '40s, replacing cumbersome master straight edges, squares, and flats.