Patent ID: 7837329

Claim:
A fundus camera for photographing a fundus of an examinee's eye, the fundus camera comprising: an illumination optical system comprising an illumination light source and arranged to illuminate the fundus with illumination light emitted from the illumination light source via an objective lens; a photographing optical system comprising a focusing lens movable in an optical axis direction thereof, arranged to photograph the fundus by photo-receiving the illumination light reflected from the fundus via the objective lens and the focusing lens, and comprising a diopter correction lens arranged to correct a diopter of severe ametropia and to be additionally inserted into an optical path of the photographing optical system; a focus detection optical system comprising a projection optical system comprising a projection light source and a first polarizing member, arranged to project focus target light in a first polarizing direction onto the fundus without using a black dot plate arranged to remove reflection from the objective lens, and a photo-receiving optical system comprising a photodetector and a second polarizing member arranged to make focus target light in a second polarizing direction orthogonal to the first polarizing direction enter the photodetector, arranged to photo-receive the focus target light in the second polarizing direction that is reflected from the fundus, and shared by an observation optical system arranged to observe the fundus; eye refractive power measurement data obtaining means arranged to obtain measurement data including astigmatic power of the eye; and moving means arranged to move the focusing lens, the diopter correction lens, and a part of the projection optical system based on data of the focus detection optical system and the data of the eye refractive power measurement data obtaining means so as to set a focus position of the photographing optical system at a position corresponding to spherical equivalent power of the eye.