Patent ID: 6456787
Filing Date: 2002-09-24
Classification: A61B

Abstract:
An eye fundus camera comprising:an illumination optical system configured to illuminate the fundus of a patient's eye with light of wavelengths falling within a first wavelength band; a photography optical system configured and positioned to form an image of the fundus illuminated by said illumination optical system so that a fundus image will be produced by said camera, said photography optical system including a first filter that exhibits a spectral characteristic of intercepting light of wavelengths falling within the first wavelength band and transmitting light of wavelengths falling within a second wavelength band of longer wavelengths than the first wavelength band, and a second filter which exhibits a spectral characteristic of transmitting light of wavelengths falling within a wavelength band that covers the second wavelength band and includes part of the first wavelength band and that is therefore wider than the second wavelength band including the wavelengths of the light transmitted by said first filter, at least said first filter being capable of being inserted into an optical path of said photography optical system and displaced therefrom; a photography switch with which an operator gives instructions to photograph the fundus image as still images under strobe light; a controller for causing a strobe to produce the strobe light when said photography switch is pressed and said first filter is inserted into the optical path; and a display for displaying the fundus image produced by said photography optical system.