Introduction

Collimators with infinity setting
A collimator is an instrument that projects the image of a reticle to infinity. Consequently, a bundle of parallel light emerges from the collimator. The reticle is located in the focal plane of the objective. No real image of the reticle arises.
The main components of a collimator are:
- tube with objective
- adapter sleeve with reticle
- illumination
Collimators are adjusted at a wavelength of 546 nm. An adjustment at infinity at other wavelengths can be provided at our works.

Collimators with tube extension
(variable adjustment)
Colimators with tube extension are used if a variable distance setting (finite and infinite) is required. With the aid of the tube extension the position of the reticle in respect to the focal plane of the objective is changeable. As a result of that the former parallel beam converts into a convergent or divergent beam and yields a real or virtual image of the reticle.