Patent ID: 6944326

Claim:
Process for video microscopy in which an object ( 9 ) on a movable microscope stage ( 8 ) is imaged on a video camera ( 10 ) by means of a microscope ( 1 ) having an optical axis ( 2 ) passing through a microscope optical system ( 3 ) and a microscope objective ( 4 ) on an objective revolver ( 6 ), with motorized and coded stage control ( 8 ), with a video camera ( 10 ) at a camera output ( 5 ) centered on the optical axis ( 2 ) and with a readable coding of the magnification setting on the objective revolver ( 6 ), the analog output signal from the video camera ( 10 ) is digitized with an A/D image converter ( 11 ) and temporarily stored in an image memory, the digital signal is transferred to a personal computer ( 12 ) and displayed on a monitor ( 13 ) connected to the computer, characterized in that a) at any desired magnification V 1 of the video system, an image detail ( 15 ) preferably lying outside the optical axis ( 2 ) is selected by clicking with a computer mouse ( 16 ) linked to the PC ( 12 ), b) the image coordinates {right arrow over (r)} 1 =(x 1 , y 1 ) of the selected image detail ( 15 ) relative to the center ( 18 ) of the monitor image ( 17 ) are determined by reading the applicable digital line and column values for the image from the image memory and converting to the proper scale with the selected magnification V 1 of the video system and the camera pixel width, c) and after a change from the magnification V 1 to a different magnification V m the microscope stage ( 7 ) is moved in the proper direction by Δ{right arrow over (p)}={right arrow over (r)} 1 (1/V m −1/V 1 ), and analogously for a magnification change from a value V n to a value V p , so that the selected image detail ( 15 ) appears in at least approximately a fixed position on the monitor screen ( 17 ).