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:
Oct. 01, 1985
Filed:
Feb. 21, 1984
Kazuo Nunokawa, Tokyo, JP;
Tokyo Kogaku Kikai Kabushiki Kaisha, Tokyo, JP;
Abstract
An ophthalmoscopic camera comprising a photographing optical system including an objective lens adapted to be positioned opposite to a patient's eye with a working distance and an image plane on which an image of fundus of the patient's eye is formed, an illuminating optical system for projecting a beam of illuminating light to the patient's eye, a focus detecting optical system including a mark projecting system having a mark plate formed with at least one mark and located conjugate with the image plane of the photographing optical system with respect to the objective lens and an optical system for optically projecting the mark through the pupil of the patient's eye to the eye fundus. The mark projecting system includes a beam rotating device for rotating the mark projecting beam about the mark projecting optical axis.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile