Apparatus for visual acuity test

Details Apparatus for visual acuity test Apparatus for visual acuity test

1994-01-31

1995-05-16

Sikes, William L.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Subjective type

351243, A61B 302

Patent

active

054165407

ABSTRACT:
An apparatus for visual acuity testing by presenting visual test charts to an examinee by utilizing an electro-optic effect, the apparatus comprising a test charts displaying device in which test charts of a same kind are arranged in each chart line per visual acuity value and constitute a plurality of test chart lines, and test charts in different kind of test chart line individually arranged in a space between test charts in at least a test chart line, and a kind of test charts to be displayed on the test chart displaying device is selected by a selecting device.

REFERENCES:
patent: 4550990 (1985-11-01), Trispel et al.
patent: 5129720 (1992-07-01), Jovicevic

Affiliated with

Also associated with

Rating

Apparatus for visual acuity test does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for visual acuity test, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for visual acuity test will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-641313