Eye imaging unit having a circular light guide

Details Eye imaging unit having a circular light guide Eye imaging unit having a circular light guide

1997-03-18

1998-10-13

Mai, Huy

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

351221, A61B 300

Patent

active

058220364

ABSTRACT:
An eye imaging system having a portable image capture unit having a circular light guide positioned adjacent to and behind a corneal contact lens for controlling directing light over a wide field to the retina of an eye and provide more light towards the center of the eye.

REFERENCES:
patent: 3630602 (1971-12-01), Herbert
patent: 3944341 (1976-03-01), Pomerantzeff
patent: 3954329 (1976-05-01), Pomerantzeff
patent: 4023189 (1977-05-01), Govignon
patent: 4026638 (1977-05-01), Govignon
patent: 4200362 (1980-04-01), Pomerantzeff
patent: 4573778 (1986-03-01), Shapiro
patent: 4715703 (1987-12-01), Cornsweet et al.
patent: 5125730 (1992-06-01), Taylor et al.

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