Apparatus for presentation of eye tests for testing near and dis

Details Apparatus for presentation of eye tests for testing near and dis Apparatus for presentation of eye tests for testing near and dis

1982-11-12

1986-02-25

Bovernick, Rodney B.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Subjective type

351239, A61B 302

Patent

active

045726299

ABSTRACT:
Apparatus for displaying eyesight tests for patients comprising a viewing station a test support having a plurality of eyesight tests selectively visible from the viewing station along first and second optical paths, the first optical path being for near vision and devoid of optical focusing means and the second optical path being for far vision and having optical focusing means. The optical paths have a common section running from a selected test support panel. Each of the optical paths comprises a mirror for bending the viewing axis toward the viewing station, the mirror for the first optical path being rockably mounted or semireflecting for providing access to the second optical path.

REFERENCES:
patent: 2364793 (1944-12-01), Jobe et al.
patent: 3012472 (1961-12-01), Feinberg et al.
patent: 4298253 (1981-11-01), Tagnon

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