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. 16, 1991
Filed:
Oct. 27, 1989
Applicant:
Inventors:
Phillip J Erickson, Bellevue, WA (US);
Janet L Crossman, Bellevue, WA (US);
Gregory L Heacock, Seattle, WA (US);
Martin A Mainster, Overland Park, KS (US);
Assignee:
Ocular Instruments, Inc., Bellevue, WA (US);
Primary Examiner:
Int. Cl.
CPC ...
A61B / ; G02C / ;
U.S. Cl.
CPC ...
351219 ; 3511 / ;
Abstract
An ophthalmic lens which has three elements, a contact lens, a center lens, and an entry lens. The lens produces a wide field, aerial image of the fundus of the eye. The lens is particularly useful because it provides high resolution of the peripheral retina, and causes little or no distortion of the laser beam used for peripheral fundus laser treatment.