| CPC A61B 3/1025 (2013.01) [A61B 3/0008 (2013.01); A61B 3/14 (2013.01)] | 18 Claims |
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1. An ophthalmic apparatus, comprising:
an objective lens;
an illumination optical system configured to generate illumination light using light from a light source, and to illuminate a subject's eye with the illumination light through the objective lens;
a mounting unit configured to allow an external device including a sensor to be mounted so that the sensor is arranged on an imaging optical path;
an imaging optical system configured to guide returning light of the illumination light from the subject's eye to the imaging optical path;
a communication unit including a transmitter and having a communication function with the external device; and
a controller including processing circuitry configured to control the illumination optical system and to control the sensor through the communication unit to synchronize with control for the illumination optical system,
wherein the illumination optical system includes
a slit in that a slit-shaped aperture is formed, the slit-shaped aperture being capable of being arranged at a position substantially conjugate optically to an imaging site of the subject's eye,
an iris aperture arranged between the light source and the slit, and configured to be capable of being arranged at a position substantially conjugate optically to an iris of the subject's eye, and
an optical scanner deflecting the illumination light that has passed through the aperture, the optical scanner being capable of being arranged at a position substantially conjugate optically to the iris of the subject's eye,
the controller is further configured to control the optical scanner in synchronization with control for the sensor,
the ophthalmic apparatus further comprises an optical element arranged between the light source and the iris aperture, and configured to deflect the illumination light so that the light amount distribution in a direction connecting the aperture formed in the iris aperture and the aperture formed in the slit is maximized, and
the controller is further configured to move the slit in an optical axis direction of the illumination optical system and to change at least one of a position and an orientation of the optical element relative to the aperture formed in the iris aperture.
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