Patent ID: RE39882

Claim:
An ophthalmologic characteristic measuring apparatus comprising: a first light source for emitting light rays having a first wavelength; a first illuminating optical system for illuminating convergently a portion near the center of curvature of the cornea of an eye to be examined with first illuminating light rays emitted from said first light source; a first receiving optical system for receiving the first illuminating light rays reflected back from the cornea of the eye; a first converting member for converting the reflected light rays into at least seventeen beams; a first light receiving unit for receiving a plurality of light beams converted by said first converting member; a second light source for emitting light rays having a second wavelength; a second illuminating optical system for projecting an index having a specific pattern on the cornea of the eye with second illuminating light rays emitted from said second light source; a second light receiving optical system for receiving light rays reflected back from the cornea of the eye; a second light receiving unit for receiving the second illuminating light rays from said second light receiving optical system; and an arithmetic unit for determining the shape of the cornea near the center of the eye on the basis of an inclination angle of the light rays obtained by said first light receiving unit and determining the shape of the cornea at the periphery of the eye on the basis of a position of said second light receiving unit, at which position said second light receiving unit receives the second illuminating light rays.