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:
Dec. 21, 1999
Filed:
Jun. 26, 1998
Applicant:
Inventors:
John K Shimmick, Belmont, CA (US);
Vladimir Lemberg, Belmont, CA (US);
Terrance N Clapham, Jamestown, CA (US);
Charles R Munnerlyn, San Jose, CA (US);
Assignee:
VISX, Inc., Santa Clara, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
606-5 ; 606-4 ; 606 10 ; 606 17 ; 351205 ;
Abstract
Enhancement of the alignment between the eye and a laser beam of a laser eye surgery system using a visual fixation system, the fixation system often having an adjustable optical train. The optical train of the fixation system allows an eye having a significant refractive error to be accurately focused at a fixation target. To accommodate the refractive error, the adjustable optical train will often project an image of the target so that the projected image is in focus in front of or behind the plane of the patient's eye.