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:
Apr. 16, 1985
Filed:
Sep. 22, 1981
Applicant:
Inventors:
Kazuo Nunokawa, Tokyo, JP;
Masayuki Masuyama, Tokyo, JP;
Assignee:
Tokyo Kogaku Kikai Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ; A61B / ; G03B / ;
U.S. Cl.
CPC ...
351208 ; 354 62 ;
Abstract
An ophthalmic apparatus having an automatic detection device of an appropriate position of the patient's eye. A target is projected through an aperture having two openings and through an objective lens to the patient's eye. The target projecting beam is reflected at the cornea of the eye and passed through the objective lens to form a target image. The position of the target image is detected photoelectrically by linear sensors or an area sensor.