Abstract: An ophthalmologic information processing apparatus according to the embodiments includes a search unit, a correction unit, and a display control unit. The search unit is configured to search for filter information for correcting an aberration in complex OCT data of a subject's eye so that a quality of the complex OCT data becomes a predetermined level. The correction unit is configured to correct the aberration in the complex OCT data based on the filter information searched by the search unit. The display control unit is configured to display, on a display means, aberration information on a pupil surface of the subject's eye corresponding to the filter information searched by the search unit.

Abstract: A Hall device of the present invention includes a cross-shaped magnetometric sensing surface, a pair of power terminal portions and a pair of output terminal portions. The surface is formed of a rectangular and mutually opposed extensions provided on each side of the rectangular. The pair of power terminal portions is provided on a pair of the opposed extensions at the surface. The pair of output terminal portions is provided on another pair of the opposed extensions at the surface. Slits extending in each opposed direction completely split the power portions and the output portions and in partway split each extension at the surface, and each of the slits is provided with a separation layer of an insulator. An outline formed of the surface, the power portions and the output portions is quadrature-symmetrical with the center. The Hall device of this structure is highly sensitive to a magnetic field.

Abstract: A Hall device of the present invention includes a cross-shaped magnetometric sensing surface, a pair of power terminal portions and a pair of output terminal portions. The surface is formed of a rectangular and mutually opposed extensions provided on each side of the rectangular. The pair of power terminal portions is provided on a pair of the opposed extensions at the surface. The pair of output terminal portions is provided on another pair of the opposed extensions at the surface. Slits extending in each opposed direction completely split the power portions and the output portions and in partway split each extension at the surface, and each of the slits is provided with a separation layer of an insulator. An outline formed of the surface, the power portions and the output portions is quadrature-symmetrical with the center. The Hall device of this structure is highly sensitive to a magnetic field.