Patent ID: 7309127

Claim:
An ophthalmic measuring apparatus comprising: a first illuminating optical system including a first light source configured to emit a light flux of a first wavelength, for illuminating a retina of a subject eye, to be condensed on a place close to the retina, with the first illumination light flux from the first light source; a first light receiving optical system including a first conversion member configured to convert a reflected light flux reflected by the retina of the subject eye into at least 17 light fluxes, and a first light receiving part configured to receive the plural light fluxes converted by the first conversion member as first received light signals, the first light receiving optical system configured to guide the reflected light flux to the first light receiving part; first movement means for moving a condensing position of the first illuminating optical system; second movement means for optically moving the first light receiving part and the first conversion member along an optical axis; a mode changeover part configured to switch between an interlock mode in which movement operations of the first movement means and the second movement means are interlocked and an independent mode in which movement operations of the first movement means and the second movement means can be independently controlled, in which the first light receiving part and the first conversion member are moved by the second movement means along the optical axis independently of the movement operation of the first movement means; and an arithmetic part configured to obtain an optical characteristic of the subject eye by performing a Zernike analysis on the basis of tilt angles of the light fluxes obtained by the first light receiving part, wherein the first movement means and the second movement means are configured to adjust the condensing position of the first illumination light flux and condensing positions of the light fluxes converted by the first conversion member according to received light positions and/or received light levels of the first received light signals at the first light receiving part, and when the independent mode is selected by the mode changeover part, the arithmetic part obtains received light position intervals from the first received light signals at the first light receiving part, and the condensing positions of the light fluxes converted by the first conversion member are configured to be adjusted by the second movement means, which moves the first light receiving part and the first conversion member on the basis of the obtained intervals independently of the first movement means, so that the obtained intervals fall within a predetermined interval range.