Portable visual function tester
Abstract
A novel portable visual function tester and reliable testing method is described for the rapid and accurate measurement of several parameters of human vision, including critical fusion frequency, stereopsis. The visual display patterns may comprise light emitting diodes: the electronics of the system may include an audio recorder for recording the selected vision parameter measurement and the observations using the system, and may be battery powered for portability.
- Publication:
-
Patent Application Department of the Air Force
- Pub Date:
- April 1984
- Bibcode:
- 1984pad..reptR....T
- Keywords:
-
- Human Performance;
- Physiological Tests;
- Vision;
- Visual Acuity;
- Display Devices;
- Human Beings;
- Light Emitting Diodes;
- Patent Applications;
- Portable Equipment;
- Instrumentation and Photography