Eye's optical characteristic measuring system
OwnerGaku Takeuchi, Katsuhiko Kobayashi +2inventors
InventorsGaku Takeuchi, Katsuhiko Kobayashi, Masahiro Shibutani, Yumi Kubotera
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Abstract
An eye's optical characteristic measuring system, comprising a target projecting system for projecting a target image on an ocular fundus of an eye under test, a photodetection optical system for guiding the target image to a photoelectric detector, a calculating unit for calculating an optical transmission function of the eye under test based on light amount intensity distribution of the target image detected by the photoelectric detector, and an arithmetic unit for calculating visual acuity of a person under test from intersection of the optical transmission function and a predetermined threshold value.
Claims4
An eye's optical characteristic measuring system, comprising a target projecting system for protecting a target image on an ocular fundus of an eye under test, a photodetection optical system for guiding the target image to a photoelectric detector, a calculating unit for calculating an optical transmission function of the eye under test based on light amount intensity distribution of the target image detected by said photoelectric detector, and an arithmetic unit for calculating visual acuity of a person under test from intersection of the optical transmission function and a predetermined threshold value.
Dependencies are inferred from the claim text.