Patent ID: 6949754

Claim:
An apparatus for selective measurement of luminescent and/or fluorescent radiation, in particular, from specimen holders via at least two measurement light paths by means of at least two measuring devices, wherein the apparatus comprises at least one beam source and at least one detector, characterized in that a single filter holder, retained rotatably or displaceably in a horizontal plane (E 1 ), is provided, which has at least two openings, each for holding one emissions filter as needed; that the specimen holders are displaceable in a common specimen plane (E 2 ) below the horizontal plane (E 1 ) and parallel thereto into their measurement positions; and that the measuring devices (F 1 , F 2 , L) are disposed essentially between the two planes (E 1 , E 2 ) in such a way that each of their associated measurement light paths (M 1 , M 2 , M 3 ) can extend through each opening in the filter holder, the opening being selectable by rotation or displacement of the filter holder, to said at least one detector.