Patent ID: 7244025

Claim:
An eye's optical characteristics measuring system, comprising a first target projection optical system for projecting a target image on a fundus of an eye under test, a first photodetecting means for receiving the target image reflected from the fundus of the eye under test from said first target projection optical system, an ocular refractive power measuring unit for measuring ocular refractive power of the eye under test based on the photodetection result from said first photodetecting means, a second target projection optical system for projecting a spot-like target image to the fundus of the eye under test, a second photodetecting means for receiving the target image reflected from the fundus of the eye under test, and an eye's optical characteristics measuring unit for measuring ocular refractive power based on two or more images acquired at a predetermined refractive degree pitch before and after centering the value of the refractive degree of the eye under test obtained by said second photodetecting means.