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. 31, 2000
Filed:
Jan. 22, 1999
Applicant:
Inventor:
Jay Wei, Fremont, CA (US);
Assignee:
Carl Zeiss, Inc., Thornwood, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
351211 ;
Abstract
A visual field tester which measures the visual field of a patient's eye, which visual field tester includes: (a) an optical radiation source having an entrance pupil plane, which optical radiation source outputs one or more spots of optical radiation; and (b) an optical relay system which relays a point in the entrance pupil plane or a point conjugate to the point in the entrance pupil plane to the patient's eye with a one-to-one magnification, wherein the optical relay system comprises a beamsplitter disposed at an angle with respect to a retroreflector array.