Eye examining apparatus

Details Eye examining apparatus Eye examining apparatus

1994-01-21

1996-01-09

Sikes, William L.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Subjective type

351237, 351239, A61B 302

Patent

active

054833051

ABSTRACT:
An eye examining apparatus has a plurality of visual target projecting systems provided for left and right eyes. A visual target for an eye to be examined is adapted to be projected onto the eye to be examined by one of the plurality of visual target projecting systems, the visual target unit for the eye to be examined having a visual target mark for optometry. A visual target for the other eye adapted to be projected onto the other eye by one of the plurality of visual target projecting systems. The visual target for the other eye is provided with the same visual target mark as the visual target for optometry except that the visual target mark is made non-directional.

REFERENCES:
patent: 4155632 (1979-05-01), Wolbarsht
patent: 4408846 (1983-10-01), Balliet
patent: 4697895 (1987-10-01), Sekiguchi et al.
patent: 4704012 (1987-11-01), Kohayakawa et al.
patent: 4820037 (1989-04-01), Kohayakawa et al.
patent: 5231430 (1993-07-01), Kohayakawa
patent: 5237351 (1993-08-01), Kohayakawa et al.

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