Patent ID: 8659651
Filing Date: 2014-02-25
Classification: G02B

Abstract:
1. A surgical microscope for observing an infrared fluorescence, the surgical microscope comprising: a camera system having an input port, a dichroic beam splitter and first, second and third camera chips, wherein the dichroic beam splitter is configured to direct red light received at the input port mainly towards the first camera chip via a first output port of the beam splitter, to direct green light received at the input port mainly towards the second camera chip via a second output port of the beam splitter, to direct blue light received at the input port mainly towards the third camera chip via a third output port of the beam splitter, and to direct infrared light received at the input port such that a first intensity of the infrared light directed towards a selected camera chip among the first, second and third camera chips to be larger than a sum of intensities of the infrared light received by others than the selected camera chip among the first, second and third camera chips; microscopy optics configured to optically image an object area onto the camera chips of the camera system; and a display system configured to display images based on light intensities detected by the camera chips of the camera system.