Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Patent
1980-04-14
1983-10-18
Corbin, John K.
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Objective type
351205, 350500, A61B 310
Patent
active
044102453
ABSTRACT:
A method of reducing the effects of rotational motion and jitter of an object comprising forming a virtual image of the region or plane being examined at the center of rotation of the object by means of a lens or mirror fixed with respect to the object and viewing the virtual image of the region or plane. An optical system for viewing a region or plane of an object adapted to reduce the effects of rotational motion and jitter of the object by providing a virtual image of the region or plane at the center of rotation of the object. Image stabilization apparatus comprising an optical instrument for viewing a plane or region of an object and means rigidly affixed to the object for forming a virtual image of the plane or region substantially at the center of rotation of the object as the plane or region is viewed through the optical instrument. Image stabilization apparatus comprising an optical instrument adapted to project an image to the center of rotation of the eye of an observer and a contact lens affixed to the eye of the observer adapted to form the image from the instrument on the retina of the eye.
REFERENCES:
Koenderink et al., Method of Stabilzing the Retinal Image Applied Optics, vol. 13 No. 4, Apr. 1974.
Koenderink, Contrast Enhancement and the Negative After Image JJ Koenderink, Journal of the Optical Society of America, vol. 62, No. 5, May. 1972.
A. L. Yarbus, Eye Movement and Vision (Plenum, N.Y.: 1967), pp. 35-38 and 142-143.
Riggs et al., "The Disappearance of Steadily Fixated Visual Test Objects," Journal of the Optical Society of America, vol. 43, No. 6, (Jun., 1953), pp. 495-501.
Ratliff, "The Role of Physiological Nustagmus in Monocular Acuity" Journal of Experimental Psychology, vol. 43, No. 3 (Mar., 1952), pp. 163-172.
Ditchburn et al., "Vision With A Stabilized Retinal Image", Nature, vol. 170 (Jul. 5, 1952), pp. 36-37.
Bovernick Rodney B.
Corbin John K.
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