OPHTHALMIC APPARATUS FOR PHOTOGRAPHING THE ANTERIOR PART OF THE EYE WITH A REPRODUCIBLE PHOTOGRAPHING POSITION
Patent №
US 5,347,331
Granted
1994-09-13
Filed 1993
Owner
NIDEK CO., LTD.
Lab
—
AI components
1
vision
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
08074494
Ophthalmic photographing apparatus for photographing an anterior part of examinee's eye provides an alignment optical system including a reflection image forming device for forming an image reflected on the cornea of the examinee's eye, an observation optical system for observing image of the anterior part of the examinee's eye, comprising an alignment reticle, and a photographing optical system for photographing the anterior part of the examinee's eye. The picture image data of the anterior part of the eye photographed with the photographing optical system is memorized by a picture image data memory, and an alignment deviation is detected by operating the memorized picture image signal to detect a designated part and by finding a dislocation distance of the designated part from a reference position, and an analyzing position of the image is corrected on the basis of the alignment deviation and the picture image of the anterior eye is analyzed.
AI classification
Ownership
NIDEK CO., LTD.
assignment · 66020941
Assignors
ISOGAI, NAOKI, HANAKI, HIROHIKO
On an employer assignment, the assignors are typically the inventors.