| 摘要 |
<p>An alignment device for an ophthalmic measurement apparatus, which includes: an index projection optical system that forms a plurality of indices on a cornea of an eye to be examined by projecting a plurality of index lights onto the cornea; an imaging optical system that forms the images of the plurality of indices on an imaging device as index images; three-dimensional driving device for driving the imaging optical system in a three-dimensional direction; and controlling device for controlling to drive the three-dimensional driving device, and the controlling device, based on the positions of the index images formed on the imaging device, controls to drive the imaging optical system vertically and horizontally by the three-dimensional driving device such that a cornea vertex position of the image of the eye to be examined, which is formed on the imaging device, moves toward the center of the imaging device, in which the imaging optical system allows the imaging device to detect reflected lights of the plurality of index lights reflected by the cornea, and the controlling device controls to drive the three-dimensional driving device such that average light quantity values become approximately equal in a plurality of photo-detecting sections of the imaging device where the reflected lights are detected.</p> |
