Visual acuity testing apparatus

Details Visual acuity testing apparatus Visual acuity testing apparatus

1986-12-24

1988-06-28

Bovernick, Rodney B.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Subjective type

351239, 351245, A61B 302

Patent

active

047535270

ABSTRACT:
A visual acuity testing apparatus is herein disclosed which comprises a test chart displayer having a display surface pointing to an upward direction; a first reflector, for downwardly reflecting a light beam from the test chart displayer, disposed above the displayer; and a second reflector for reflecting the light beam, reflected by the first reflector, towards eyes to be tested.
Said test chart displayer and the first reflector for reflecting and propagating the light beam from the displayer are contained in a leg of a table and the second reflector for reflecting the light beam from the first reflector towards the eyes to be tested is supported by a supporting arm of the table.

REFERENCES:
patent: 4298253 (1981-11-01), Tagnon

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