Abstract: A medical examination device having a grip portion that is grippable by an operator in such a manner as to be sandwiched between a thumb and at least one of four fingers including an index finger, a middle finger, a ring finger, and a little finger on an index finger side of one hand, to examine a subject by performing operation in a state where the grip portion is gripped with the one hand, includes a finger hook portion provided on the grip portion to be hooked on any of the fingers located on the index finger side when the grip portion is gripped by the operator with the one hand.

Abstract: Positioning control relating to a two-aperture stop necessary for stereoscopic photography can be performed accurately and securely using a simple, inexpensive, compact, and lightweight structure. The apparatus comprises a two-aperture stop (28) provided with two stop apertures (28a, 28b), and a shutter plate (302) for opening and closing one of the two stop apertures. The two-aperture stop (28) is moved so as to intersect with an optical axis so that in monocular photography the two-aperture stop is positioned in a first position in which the stop aperture (28b) is disposed substantially at the center of the optical axis and so that in stereoscopic photography it is positioned in a second position in which the two stop apertures (28a, 28b) are disposed off-center from the optical axis.

Abstract: Positioning control relating to a two-aperture stop necessary for stereoscopic photography can be performed accurately and securely using a simple, inexpensive, compact, and lightweight structure. The apparatus comprises a two-aperture stop (28) provided with two stop apertures (28a, 28b), and a shutter plate (302) for opening and closing one of the two stop apertures. The two-aperture stop (28) is moved so as to intersect with an optical axis so that in monocular photography the two-aperture stop is positioned in a first position in which the stop aperture (28b) is disposed substantially at the center of the optical axis and so that in stereoscopic photography it is positioned in a second position in which the two stop apertures (28a, 28b) are disposed off-center from the optical axis.

Abstract: An ophthalmologic examination apparatus has a main unit housing an illuminating optical system that illuminates a fundus of a subject's eye to be examined and an imaging optical system that images the illuminated eye fundus. First and second attachment units are removably and exchangeably mounted to the main unit for providing different ophthalmologic functions. The first attachment unit houses an imaging device that captures an image of the eye fundus via the imaging optical system housed in the main unit. The second attachment unit houses a light source that emits stimulating light for an electroretinogram and which is projected onto the eye fundus via the imaging optical system housed in the main unit.

Abstract: An ophthalmologic examination apparatus is provided which is capable of performing a variety of ophthalmologic examinations with a low-cost configuration. An illuminating optical system for illuminating an eye fundus and an imaging optical system for imaging the illuminated eye fundus, which are both necessary in an ophthalmologic examination, are housed in a main unit. A plurality of attachment units is removably mounted to the main unit. Each of the attachment units is provided with a different ophthalmologic function such as a function for planarly or stereographically observing or photographing the imaged eye fundus, a function for emitting stimulating light on the eye fundus or a function for spectroscopically analyzing the eye fundus. Such an arrangement allows the ophthalmologic examination apparatus to perform various functions merely by selecting the attachment unit and mounting it to the main unit.

Abstract: An ophthalmic apparatus has an illumination optical system for illuminating a preselected point of a patient's eye with slit-light. Objective lenses are each disposed in an observation optical path for forming an image of the preselected point of the patient's eye. Eyepiece systems are disposed in respective ones of the observation optical paths for observing the image of the preselected point of the patient's eye. An imaging device captures the image of the preselected point of the patient's eye. An optical element guides the image of the preselected point of the patient's eye to the imaging device. The optical element is disposed between the objective lenses at a position that does not lie in any of the observation optical paths.

Abstract: An ophthalmic apparatus includes an illumination optical system for illuminating a specified point of a subject eye with slit-light and an observation optical system having left and right eyepiece systems to enable an examiner to use both eyes to observe an image of the specified point formed by objective lenses. An optical element is located between the objective lenses and the specified point and between the effective diametric centers of the left and right eyepiece systems to guide the image of the specified point of the eye to an imaging means. Such an arrangement enables differences between the observed and captured images to be substantially eliminated and the images to be observed with no degradation.