An autocollimation telescope (autocollimator) combines the function of a collimator and a testing telescope in one unit. The collimator and telescope share the same optical path, which is accomplished through either a physical or geometrical beam splitter.
MÖLLER-WEDEL OPTICAL GmbH offers autocollimators with fixed focus setting and with adjustable focus setting.
Autocollimators with fixed focus setting
Autocollimators 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 autocollimators. With the aid of the tube extension the position of the reticles 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.