Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Patent
1991-04-26
1992-09-01
Bovernick, Rodney B.
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Objective type
351211, A61B 314
Patent
active
051443465
ABSTRACT:
An ophthalmological apparatus is arranged in such a manner that different measuring light sources are provided for an eye refractive power measuring system and a lens refractive power measuring system. A light sensor of the lens refractive power measuring system is commonly used as at least either the light sensor for an alignment observing system or the light sensor for the eye refractive power measuring system. A lens to be examined can be placed at a position which is different from a position where an eye to be examined is placed.
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Aoki Hiroshi
Kohayakawa Yoshimi
Nakamura Yukitsugu
Bovernick Rodney B.
Canon Kabushiki Kaisha
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