Patent №
US 4,673,264
Granted
1987-06-16
Filed 1984
Owner
TOKYO KOGAKU KIKAI KABUSHIKI KAISHA A CORP. OF JAPAN
Lab
—
AI components
1
vision
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
06582330
An eye fundus camera having an automated focus control system which includes a mark projecting system for projecting a focus detecting mark to the retina of a patient's eye to produce a mark image and a photoelectric system for detecting the mark image to judge the focus condition. The photoelectric system produces electric signals which are compared with a threshold level signal to produce mark image signals. In order to ensure an accuracy of detection of the mark image, the threshold level can be changed when it is judged as inappropriate.
AI classification
Ownership
TOKYO KOGAKU KIKAI KABUSHIKI KAISHA A CORP. OF JAPAN
assignment · 42310662
Assignors
TAKAHASHI, SUSUMU
On an employer assignment, the assignors are typically the inventors.