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:
Jan. 14, 1986
Filed:
May. 03, 1984
Applicant:
Inventors:
Youich Iba, Hachiouji, JP;
Kouji Inaba, Hachiouji, JP;
Assignee:
Olympus Optical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
351209 ; 351208 ;
Abstract
A retinal camera wherein an auxiliary lens is provided so as to be free to be let into and out of a light path between the position of an image of a retina formed by an objective and a relay lens so that the front eye part of an eye to be examined can be illuminated brightly and uniformly and an image of the front eye part of a high resolution can be obtained at a high magnification. The auxiliary lens has a negative or positive refracting power. The auxiliary lens having a negative refracting power is let into and out of the light path together with an image rotator so that the image of the front eye part can be observed as an erected image.