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:
May. 22, 1984
Filed:
Mar. 02, 1982
Masao Nohda, Yokosuka, JP;
Nippon Kogaku K.K., Tokyo, JP;
Abstract
In an eye fundus observation apparatus wherein light-intercepting members for eliminating flare are provided at predetermined positions in an illumination optical path which are substantially conjugate with the cornea and the front surface of the crystalline lens of an eye being examined in a condition in which the apparatus is focused to the fundus of the eye, an observation opening is formed at a position substantially conjugate with a position between the cornea and the front surface of the crystalline lens of the eye whereat the magnification of the reflected image on the rear surface of the crystalline lens is approximately one-to-one magnification in a condition in which the apparatus is focused to the fundus of the eye.