Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Reexamination Certificate
2006-10-10
2006-10-10
Marmor, II, Charles A. (Department: 3735)
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Objective type
C351S200000, C351S205000, C351S245000, C351S246000
Reexamination Certificate
active
07118218
ABSTRACT:
A device for examining for the eyeground of a patient's eye (1) has a head holder (3) for fixing the patient's head and a slit lamp unit (19or22). Provided on the head holder is a laterally movable lens carriage (9), in the shaft guide (10) of which a lens holder (11) can be introduced with its shaft (27) from above. For positioning the lens (12) in front of the eye (1), the lens holder is coupled in terms of movement to the microscope by means of an adapter (25) and a guide plate (24). The lens carriage, the lens holder and the adapter or the guide plate are in this case formed in such a way that the lens holder can be spatially fixed and uncoupled from the microscope with few manipulations, which makes it possible for an image of the eyeground to be formed the microscope in an optimum way.
REFERENCES:
patent: 2622473 (1952-12-01), Littmann
patent: 2999422 (1961-09-01), Papritz
patent: 4874236 (1989-10-01), Abraham
patent: 1 133 911 (1962-07-01), None
Barker, Journal of the American Optometric Association, vol. 59, No. 7, pp. 558-560 (1988).
Birch & Stewart Kolasch & Birch, LLP
Haag-Streit AG
Marmor, II Charles A.
Sanders John
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