Image-recording device for improved low light intensity imaging and associated image-recording method

An image recording device (1) arranged for medical imaging comprising:

• at least one image sensor (2) whose pixels are based on photodiodes;
• wherein the image recording device (1) has a single photon-sensitive detector (SPSD) (3) and the image sensor (2) and the SPSD (3) are arranged to detect light from a common object area (4);
• wherein the image sensor (2) detects the light from the common object area (4) with the photodiodes;
• wherein the SPSD (3) is a sensor device separate from the image sensor (2), the SPSD (3) is based on different individual detectors than the photodiodes of the image sensor (2), and the SPSD (3) offers higher sensitivity than the image sensor (2) for detecting the light from the common object area (4);
• wherein the image recording device (1) has at least one optical filter (9) to keep undesired excitation light, used for fluorescence imaging and emanating from the object area (4), away from the SPSD (3).