Patent ID: 7416301

Claim:
An eye refractive power measurement apparatus for measuring eye refractive power of an eye of an examinee, the apparatus comprising: a measurement optical system including a projection optical system including a first light deflection member which is placed at a position not conjugate with a pupil of the eye, and is rotated about a measurement optical axis of the measurement optical system at high speed, for projecting measurement light from a measurement light source onto a fundus of the eye through a central pupillary portion of the eye via the first light deflection member and an objective lens, and forming an image in a spot shape on the fundus; and a photo-receiving optical system including a light shielding member having a ring-shaped aperture, which is placed at a position conjugate with the pupil, and a second light deflection member which is placed at a position not conjugate with the pupil, and is rotated about the measurement optical axis at high speed, for forming a ring image on an image-pickup element by the measurement light which is transmitted through the objective lens, the second light deflection member and the ring shaped aperture; and a movement unit which corrects a spherical refractive error of the eye to make the measurement light source and the image-pickup element optically conjugate with the fundus, wherein the image-pickup element stores the rotating measurement light to obtain the ring image.