CCD camera and method for fundus imaging

Details CCD camera and method for fundus imaging CCD camera and method for fundus imaging

1990-10-31

1992-08-18

Gellner, Michael L.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

351206, 358 93, A61B 314, G03B 700, G03B 2900

Patent

active

051403528

ABSTRACT:
A method and apparatus are disclosed for converting the 35 mm image from a conventional fundus camera into a size suitable for recording by a conventional solid state CCD module. The CCD camera connects to the fundus camera using a bayonet attachment. The aerial image created by the fundus camera is received and transmitted through the CCD camera along a folded mirror optical path, and is reduced and aligned for detection by the CCD module. The optical path contains a pair of adjustable mirrors to allow compensation for variations in the focal lengths between various fundus cameras. An articulating mirror may be included to enable the user to pan across the aerial image while recording segmented views for reconstruction by an external computer into a composite, high resolution image.

REFERENCES:
patent: 4773749 (1988-09-01), Ohtomo et al.

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