Eye testing apparatus
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United States of America Patent
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Aug 22, 1989
Grant Date -
N/A
app pub date -
Dec 24, 1987
filing date -
Dec 25, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An eye testing apparatus, in which a cornea reflecting image and a retina reflecting image formed by projecting each target mark image onto a cornea and a retina of an eye to be tested are projected to a slight receiving portion through a measuring optical system, and in which a corneal configuration and a refractive power of the eye to be tested are measured according to a signal detected by the light receiving portion, characterized in that the light receiving portion includes a two-dimensional light receiving element, the measuring optical system simultaneously projecting the cornea reflecting image and the retina reflecting image to different areas of the two-dimensional light receiving element.
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