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. 24, 2001
Filed:
Feb. 10, 2000
Applicant:
Inventor:
James P. Foley, Fremont, CA (US);
Assignee:
Carl Zeiss, Inc., Thornwood, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 3/14 ;
U.S. Cl.
CPC ...
A61B 3/14 ;
Abstract
An embodiment of the present invention is an apparatus to determine position of an eye that includes: (a) two off-axis, radiation emitter-photodetector pairs, wherein an emitter of a pair is disposed to transmit radiation toward the eye and a photodetector of the pair is disposed to receive radiation reflected by the eye; and (b) a controller that analyzes output from the photodetectors to determine the position of the eye.