The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 08, 1989
Filed:
Jun. 08, 1987
Applicant:
Inventors:
Takashi Hirano, Shiki, JP;
Atsushi Kojima, Hino, JP;
Assignee:
Kowa Company Limited, , JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
351224 ;
Abstract
An eye fixation monitor for ophthalmological examination is provided which is capable of automatically monitoring the eye fixation without the ophthalmologist being required to initialize the eye fixation value. The eye fixation is monitored using deviation signals derived on the basis of the eye image formed on photoelectric transducers. The eye fixation monitor is provided with means for inducing the patient to assume the eye fixation state, and to resume the monitoring automatically after the examination has been interrupted by excessive deviation of the line of sight from the eye fixation target.