Abstract: An apparatus for measuring an optical component (160, 170, 190) of the apparatus, the apparatus comprising a radiation source (130) configured to form a measuring beam in a measuring channel (140), wherein the measured optical component configured to be in a first position outside the measuring channel and in a second position in the measuring channel; a first detector (110) configured to receive beams in the measuring channel; a second detector (150) configured to receive beams in the measuring channel; at least one processor; and at least one memory including computer program code.

Abstract: An apparatus for optically measuring samples, including a radiation source configured to form an excitation beam in an excitation channel, a detector configured to detect an emission beam in an emission channel and a filter configured to be located, in an excitation position, in the excitation channel, and in an emission position, in the emission channel. The apparatus further includes a first filter storage comprising a first set of filter storage positions, a second filter storage comprising a second set of filter storage positions, and a filter transfer mechanism configured to move the filter between the excitation position, the emission position, the first set of filter storage positions and the second set of filter storage positions.

Abstract: An apparatus for optically measuring samples, including a radiation source configured to form an excitation beam in an excitation channel, a detector configured to detect an emission beam in an emission channel and a filter configured to be located, in an excitation position, in the excitation channel, and in an emission position, in the emission channel. The apparatus further includes a first filter storage comprising a first set of filter storage positions, a second filter storage comprising a second set of filter storage positions, and a filter transfer mechanism configured to move the filter between the excitation position, the emission position, the first set of filter storage positions and the second set of filter storage positions.