Collimators
A collimator is an instrument that projects the image of a reticle to a certain distance, usually to infinity. If the collimator reticle is located in the focal plane of the objective, a bundle of parallel light emerges from the collimator. In this case no real image of the reticle arises.
MÖLLER-WEDEL OPTICAL offers collimators with fixed focus settings as well as collimators with adjustable focus settings.
Collimators with fixed focus setting
At fixed focus collimators the distance between reticle and objective is fixed. If not specified otherwise, the collimator is adjusted to infinity at 546 nm wavelength. Adjustment to other fixed distances or wavelengths is also possible on demand.
Collimators with adjustable focus setting
Measuring tasks requiring different wavelengths of light, or measurements requiring variable focus (finite and/or infinite) are best accomplished using focusable collimators. 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.
