Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Patent
1986-06-19
1988-08-16
Bovernick, Rodney B.
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Objective type
351221, A61B 310
Patent
active
047640057
ABSTRACT:
An optical instrument which operates with an incident optical beam scanned at high rates and with correspondingly small sized scanning devices, has a double-scanning optical system. The output reflected beam that is detected overfills the first-stage scanning element, yet the instrument attains a relatively high-contrast image. The instrument provides for astigmatism correction, graphic generation in the scanned beam, and the use of infrared wavelength laser beams as well as visible wavelength laser beams. It also provides for generating system timing pulses from a rotating scanning element.
REFERENCES:
patent: 4213678 (1980-07-01), Pomerantzeff
patent: 4579430 (1986-04-01), Bille
Improved Imaging with the Scanning Laser Opthalmoscope, Robert H. Webb, George W. Hughes and Douglas P. Wornson, Winter 1985, Mar. 19-20, 1985 Opt. Assoc. of America Meeting.
Double Scanning and Eye Tracking with a Scanning Laser Ophthalmoscope, Robert H. Webb, George W. Hughes, Douglas P. Wornson, poster paper, ARVO meeting, Jun. 1985.
Manipulating Laser Light for Ophthalmology, Robert H. Webb, IEEE EMB Dec. 1985, pp. 12-16.
Flying Spot TV Ophthalmoscope, R. H. Webb, G. W. Hughes, and O. Pomerantzeff, Sep. 1980, vol. 19, No. 17/Applied Optics.
Scanning Laser Ophthalmoscope, Robert H. Webb and George W. Hughes, Jul. 1981, vol. BME-28, No. 7, IEEE Transactions on Biomedical Engineering.
Experimental Observations of the Depth-Discrimination Properties of Scanning Microscopes, D. K. Hamilton, T. Wilson, and C. J. R. Sheppard, Dec. 1981, vol. 6, No. 12/Optics Letters.
Scanning Laser Ophthalmoscopy, Martin A. Mainster, MD, PhD, George T. Timberlake, PhD., Robert H. Webb, PhD, George W. Hughes, ScD, vol. 89, No. 7, Jul. 1982--Ophthalmology.
Holographic Scanner, Glenn T. Sincerbox, Nov./Dec. 1982, Optic News.
Optics for Laser Rasters, Robert H. Webb, Applied Optics, vol. 23, No. 20/15 Oct. 15, 1984.
Retinal Localization of Scotomata by Scanning Laser Ophthalmoscopy, G. T. Timberlake, M. A. Mainster, R. H. Webb, G. W. Hughes & C. L. Tremp, Investigative Ophthalmology & Visual Science, vol. 22, pp. 91-97, Jan. 1982.
Hughes George W.
Webb Robert H.
Bovernick Rodney B.
Eye Research Institute of Retina Foundation
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