Apparatus for photographic retroillumination image on eyeground

Details Apparatus for photographic retroillumination image on eyeground Apparatus for photographic retroillumination image on eyeground

1991-08-09

1993-04-13

Bovernick, Rodney B.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

351211, 351221, 354 62, A61B 314

Patent

active

052027082

ABSTRACT:
A retroillumination image photographing apparatus of a crystalline lens in which an eye to be examined is projected by illumination light, and a crystalline lens is retroillumination with reflected light at an fundus of the illumination light, which includes: an alignment apparatus which aligns a photographing optical system of the retroillumination image photographing apparatus with a predetermined region of an eye to be examined; a storage apparatus which stores the position of the photographing optical system aligned by the alignment apparatus; and origin computing means which computes a specific region of the eye to be examined as an origin of an image pickup position of said photographing optical system based on the positional information of the storage apparatus; and detecting means which detects movement quantity of the image pickup position of the photographing optical system; and a display apparatus which displays the image pickup position of the photographing optical system based on the detection result of the detecting apparatus.

REFERENCES:
patent: 4019813 (1977-04-01), Cornsweet et al.
patent: 4235529 (1980-11-01), Kawase et al.
patent: 4523821 (1985-06-01), Lang et al.
patent: 4711540 (1987-12-01), Yoshino et al.

Affiliated with

Also associated with

Rating

Apparatus for photographic retroillumination image on eyeground does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for photographic retroillumination image on eyeground, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for photographic retroillumination image on eyeground will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1158508