Fundus camera
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United States of America Patent
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-
Mar 22, 1988
Grant Date -
N/A
app pub date -
Apr 4, 1985
filing date -
Apr 4, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An optical system for forming an image of the retina of the human eye. The system includes a rotating drum having transmission/receiving slit pairs formed thereon. The rotation of the drum scans an illumination region and viewing beam across the retina. Embodiments for forming stereo images, for synchronizing the formation of the image of the retina with the sweep of a vidicon tube, for automatically focusing the system, for providing flare control, for providing displaced slit functions, and for providing multiple functions are included.
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