Patent ID: 7677731
Filing Date: 2010-03-16
Classification: A61B

Abstract:
1. An eye optical characteristic measuring apparatus, comprising: a light source part for emitting a light flux of a specified wavelength; an illumination optical system for illuminating a minute area on a retina of a subject eye with the light flux from the light source part; a light receiving optical system for receiving a part of a reflected light flux which is the light flux emitted from the light source part and reflected by the retina of the subject eye, through a conversion member for converting it into at least substantially 17 beams; a light receiving part for receiving a received light flux guided by the light receiving optical system to form signals; and an arithmetic part for obtaining wavefront aberrations of the light flux incident on the light receiving optical system and a scattering degree of the received light flux on the basis of the signals from the light receiving part, wherein the illumination optical system has a wedge-shaped rotary prism to uniform irregular characteristics of the reflected light flux from the retina, the wedge-shaped rotary prism is disposed at a substantially conjugated position with respect to a pupil of the subject eye, by a rotation of the wedge-shaped rotary prism, the reflected light flux from the retina becomes uniform and the light receiving part receives scattering degree component of the reflected light flux appropriately.