Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
Patent
1979-12-13
1981-12-08
Gonzales, John
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Ophthalmic lenses or blanks
354 62, 351 38, G03B 1756
Patent
active
043044832
ABSTRACT:
An apparatus for use in photographing the eye is conveniently hand-held for true portability and is adaptable for usage in conjunction with that equipment ordinarily available in the ophthalmologist's office. The apparatus includes a support for holding in relatively fixed positions and in a secure manner an indirect lens for forming an image of the area to be photographed, a camera for viewing and photographing such image, an aligning mounting bracket for positioning the viewing sight of an indirect ophthalmoscope in correct optical alignment relative to the support and relative to the optical axis of the camera so as to illuminate the object or area to be viewed, and a beam splitter for directing the image light to the camera and passing illuminating light from the indirect ophthalmoscope to the object.
REFERENCES:
patent: 2292044 (1942-08-01), Bucky
patent: 2403892 (1946-07-01), McFarlane et al.
patent: 2459418 (1949-01-01), Ellis
patent: 2483711 (1949-10-01), Roos
patent: 3914032 (1975-10-01), Takand et al.
LandOfFree
Hand-held retina photographing apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hand-held retina photographing apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hand-held retina photographing apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-565597