| 摘要 |
<p>The optical characteristics of an eye to be tested having a large amount of aberration can be measured accurately. A first illuminating optical system (10) illuminates an eye to be tested (100) with a wide beam by using a light flux from a light source (11). A first light receiving unit (21A) receives reflection light fluxes from the eye to be tested that have been converted into practically at least 17 beams by a first conversion member (22A). A first compensation optical unit (60A), disposed in the first illuminating optical system (10), compensates an illuminating light flux to the eye to be tested (100) for aberration. A second compensation optical unit (60B), disposed in a first light receiving optical system (20A), compensates a reflection light flux from the eye to be tested (100) for aberration. An operation unit determines, based on an output from the first light receiving unit (21A), a compensation amount for canceling out aberration to deform the first and second compensation optical units (60A, 60B) and hence compensate for aberration. In addition, the operation unit determines the optical characteristics of the eye (100), based on optical characteristics based on an output from the first light receiving unit (21A) after compensation, and on compensated optical characteristics.</p> |
