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:
Feb. 19, 1991
Filed:
Nov. 28, 1989
Applicant:
Inventors:
Kuniomi Abe, Kobe, JP;
Tatsuya Kasahara, Amagasaki, JP;
Assignee:
Konan Camera Research Institute Inc., Hyogo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
351210 ; 351209 ; 351206 ;
Abstract
A device for photographing eye movement including a target comprising a plurality of lights arranged in a cross-shape with the center thereof being positioned on the eye axis of an examinee, a TV camera positioned behind the target so that at least a principal point of the TV camera's lens thereof is located on an optical line that passes near the center of the target and the examinee's pupil and a light receiving element set on the optical line so that an eye image is formed on the light receiving element.