Apparatus and stimulus design for producing and evaluating binoc

Details Apparatus and stimulus design for producing and evaluating binoc Apparatus and stimulus design for producing and evaluating binoc

1986-08-29

1989-09-05

Bovernick, Rodney B.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

For fusion and space perception testing

351240, A61B 308

Patent

active

048632589

ABSTRACT:
By using a viewing device and the proper configuration of visual stimulus material, one can create competition between the two eyes and determine what is perceived by a binocular observer. Where one eye sees light or pattern in a zone of the visual field, surrounded by a dark boundary, and the other eye sees stimulus material which does not have such a boundary, the material which is contained within the dark boundary will dominate the binocular perception. With some stimulus configurations the observer will see a bright, "lustrous" form which appears to float slightly above the stimulus surface. In other cases patterns presented to each eye will be dissected and combined into a composite perception which is determined by the presence of the dark boundary. Applications for the invention include testing of patients for impairment of vision and producing special effects in movies and other forms of entertainment.

REFERENCES:
patent: 2196906 (1940-04-01), Sherman
patent: 2294382 (1942-09-01), Burian
Dove, H. W. Ueber die Ursachen des Glanzes und de Irradiation . . . In (Poggendorff's) Annalen der Physik und Chemie, 1850, 169-189.
Helmholtz, H. von Handbuch der Physiologischen Optik, 1910, 417-430, translated by J. P. C. Southall, 1925, 512-528, Optical Society of America.
Levelt, W. J. M., On Binocular Rivalry, 1965, 55-63 (relevant section), Institute for Perception RVO-TNO, Soesterberg, The Netherlands.

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