The Perkin-elmer Corporation

Simon A Wells

Ralph L Carter

David Gosbee

David R Clark

A system for acquiring IR-data including a microscope with a motor drive stage (48) and a video camera (40) for creating a video image of a sample on the stage. A computer (12) and an associated display (16) are used to create an image of the sample on the display. Graphical markers are superimposed on the image and facilitate the identification of subsequent acquisition of data from points at which data is to be obtained. The markers include representations of the required aperture size and the microscope including an automatically adjustable aperture (26) which can be set under computer control to a required size at each data acquisition point.

Microscope aperture control

An ATR crystal (40) for use in microscopy has a conical portion (65) for contacting a sample under investigation. The apex of the cone can be provided with a small flat surface which enables reliable and reproducible ATR analysis to be undertaken. An assembly is for mounting such a crystal.

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Wendover, United Kingdom

Simon A Wells