Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Patent
1984-03-16
1988-06-28
Bovernick, Rodney B.
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Objective type
351160R, A61B 300, G02C 704
Patent
active
047535261
ABSTRACT:
Disclosed are a system and a method for stabilizing the image of an object when the motions of that object are small, the motions are either rotatory or straight-line, and the object can be contacted. In the case of the eye a contact element structure contacts the eye and moves with the small rotational movements of the eye. The contact element is mounted to rotate about a pivot point which is outside the eye. The device forms a virtual image of a portion of the eye; this image is stabilized in that the virtual image does not move laterally with the small eye movements. The examining instrument, e.g., a biomicroscope, is focused on the virtual image. In laser treatment of the retina or other regions of the eye the laser beam can be directed through the system to the stabilized image.
REFERENCES:
patent: 2430851 (1947-11-01), Allen
patent: 3630602 (1971-12-01), Herbert
patent: 3820879 (1974-06-01), Frisen
patent: 3954329 (1976-05-01), Pomerantzeff
patent: 4056310 (1977-11-01), Shimizu et al.
patent: 4065208 (1977-12-01), Currey
patent: 4067646 (1978-01-01), Nohda
patent: 4134647 (1979-01-01), Ramos-Caldera
patent: 4378147 (1983-03-01), Fujita
SU 148,200, published Oct. 26, 1960.
Ditchburn, et al., Vision With a Stabilized Retinal Image, Nature, vol. 170, No. 4314, Jul. 5, 1952, pp. 36, 37.
Yarbus, A. L., Eye Movements and Vision, 1967, pp. 35-38, 142-143.
Ratliff, The Role of Physiological Nystagmus in Monocular Acuity, Journal of Experimental Psychology, vol. 43, No. 3, Mar. 1952, pp. 163-172.
Riggs, et al., The Disappearance Of Steadily Fixated Visual Test Objects, Journal of the Optical Society of America, vol. 43, No. 6, Jun. 1953.
Koenderink, J. J., Contrast Enhancement and the Negative Afterimage Journal of the Optical Society of America, vol. 62, No. 5, May 1972.
Koenderink, et al., Method of Stabilizing the Retinal Image, Applied Optics, vol. 13, No. 4, Apr. 1974.
Bovernick Rodney B.
The Trustees of Columbia University in the City of New York
White John P.
LandOfFree
Ophthalmic image stabilization system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ophthalmic image stabilization system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ophthalmic image stabilization system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1912221