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US 6,685,317 B2Granted
Digital eye camera
AssigneeMassie Research Laboratories, Inc.
InventorsWei Su, Norbert A. Massie
Life of this patent
Estimating the term…
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AssigneeMassie Research Laboratories, Inc.
InventorsWei Su, Norbert A. Massie
Estimating the term…
A digital camera that combines the functions of the retinal camera and corneal camera into one, single, small, easy to use instrument. The single camera can acquire digital images of a retinal region of an eye, and digital images of a corneal region of the eye. The camera includes a first combination of optical elements for making said retinal digital images, and a second combination of optical elements for making said corneal digital images. In a preferred embodiment, a portion of these elements are shared elements including a first objective element of an objective lens combination, a digital image sensor and at least one eyepiece for viewing either the retina or the cornea. Also, preferably, the retinal combination also includes a first changeable element of said objective lens system for focusing, in combination with said first objective element, portions or all of said retinal region at or approximately at a common image plane. Also, preferably, the retinal combination also includes a retinal illuminating light source, an aperture within said frame and positioned within said first combination to form an effective retinal aperture located at or approximately at the lens of the eye defining an effective retinal aperture position, an infrared camera for determining eye position, and an aperture adjustment mechanism for adjusting the effective retinal aperture based on position signals from said infrared camera. Also, preferably, the cornea combination of elements includes a second changeable element of said objective lens system for focusing, in combination with said first objective element, portions or all of said cornea region at or approximately at a common image plane.
A digital eye camera for acquiring diagnostic-quality digital images of a retinal region of an eye and diagnostic-quality digital images of a corneal region of the eye, said digital eye camera comprising:
A method, utilizing a single instrument having an image sensor to output images received on its image plane, for conducting an ophthalmic examinations, said method comprising the steps of:
A digital eye camera, including a image sensor having an image plane, for acquiring diagnostic images of a retinal region and corneal region of an eye and of the eye, said eye camera comprising:
A single instrument having an image sensor to output images received on its image plane for conducting an ophthalmic examinations, said instrument comprising:
Dependencies are inferred from the claim text.