Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Patent
1993-11-15
1995-03-07
Sikes, William L.
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Objective type
351205, A61B 314
Patent
active
053963024
ABSTRACT:
An apparatus for producing an image of an object and, in particular, for examining the eye, having an illumination light source, the light of which can be focussed onto the section of the object to be examined, a scanning device, which generates a scanning movement of the source of the illumination light over the section to be examined and which is provided with beam-deflecting and image-forming optical elements, a detector device, which receives the light reflected from the section to be examined, and an evaluation and sychronization unit, which produces an image of the selected structures of the object from the time-sequential output signal from the detector device at least two image forming optical elements, which can be interchanged in order to alter the horizontal deflection angle, or image magnification in the horizontal direction, are provided in the beam path between the beam-deflecting elements.
REFERENCES:
patent: 4370034 (1983-01-01), Nohda
Klingbeil Ulrich
Plesch Andreas
Triller Adolf
Dang Hung Xuan
G. Rodenstock Instrumente GmbH
Sikes William L.
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