Patent ID: 8345090

Claim:
A fluoroscopy apparatus comprising: an illumination portion that irradiates an observation target with illumination light including excitation light; a fluorescence image acquisition device that acquires fluorescence emitted from a specified observation region of the observation target to acquire a fluorescence image; a fluorescence image-acquisition optical system that forms an image of the observation target using the fluorescence on an image-acquisition surface of the fluorescence image acquisition device; a reference-light image acquisition device that acquires returning light returning from the observation region to acquire a reference image; a reference-light image-acquisition optical system that forms an image of the observation target using the returning light on an image-acquisition surface of the reference-light image acquisition device; and an image correction section that corrects the fluorescence image acquired by the fluorescence image acquisition device by using the reference image acquired by the reference-light image acquisition device, wherein the product of an effective pixel density of the reference-light image acquisition device and an image-forming magnification of the reference-light image-acquisition optical system is less than the product of the pixel density of the fluorescence image acquisition device and an image-forming magnification of the fluorescence image-acquisition optical system.