Patent ID: 8545018
Filing Date: 2013-10-01
Classification: A61B

Abstract:
1. An ophthalmic photography apparatus in which stereoscopic photography is performed using two stop apertures that are disposed off-center from an optical axis of a photographic optical system within the photographic optical system, the apparatus comprising: a stop plate having two stop apertures, the stop plate being movable relative to the optical axis to a first position in which one of the two stop apertures is disposed substantially at the center of the optical axis for use as a stop aperture in monocular photography, and to a second position in which the two stop apertures are disposed off-center from the optical axis for use as a stop aperture in stereoscopic photography; a movable shutter plate for opening and closing one of the two stop apertures; and a drive mechanism driven by a single drive source for moving the stop plate to the first and second positions and also for moving the shutter plate so as to close the remaining other aperture of the two stop apertures when the stop plate is in the first position and to open both of the two stop apertures when the stop plate is in the second position.