Abstract: The present invention relates generally to the field of biochemical laboratory instrumentation for different applications of measuring properties of samples on e.g. microtitration plates and corresponding sample supports. The object of the invention is achieved by providing an optical measurement instrumentation which comprises a point detector (531) for the measurement of homogeneous samples, and an image detector (591) for the measurement samples wherein the substance to be measured is inside or attached to details such as cells. The instrumentation has thus two measurement modes for the measurement of different types of samples. In measurement of details, improved measurement accuracy is obtained, as well as better insensitivity to the number and location of the details such as cells or particles within a sample.

Abstract: An imaging device for biochemical or medical samples, the pulse mode light source of which incorporates flash lamps and a rotating mirror in an inclined position, the said mirror reflecting the light emitted by each flash lamp in turn along the same optical path to the sample. The flash lamps are switched on alternately in phases and synchronised with the rotating mirror and the emission light chopper, which comprises two rotating discs. The turning mirror directs the light at the sample from above and/or below, in which case a double-acting transparent scattering plate can be used.

Abstract: A multi-purpose optical scanner that is provided for performing different type of high sensitivity imaging of planar biochemical samples. These types of samples include stimulable phosphor image plates, fluorescently labelled samples like electrophoretic gels, TLC-plates, blots etc. or multi-well support of samples and colored planar samples. According to an embodiment of the present invention the multi-purpose optical scanner comprises a measurement unit, a sample support and a scanning mechanics to provide relative movements between the sample on the sample support and the measurement unit. The measurement unit includes a fiber-coupled light source and a measuring head having a fixed light source, a detector, optics and a holder for interchangeable and application specifics filter cubes. The filter cubes include necessary filters and beamsplitters for different operating modes and applications. The orientation of the beamsplitter in the specific filter cube determines which light source will be in use.