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. 30, 1996
Filed:
Oct. 26, 1994
Richard K Snook, Tucson, AZ (US);
Orbtek, Inc., Salt Lake City, UT (US);
Abstract
An ophthalmic instrument, in the nature of a pachymeter or densitometer, and which is used for ascertaining the thickness and relative optical density of the cornea of the eye on a real time basis. The instrument comprises a television camera and a multiple Scheimpflug corrected slit projector and an associated processing and display system. A number of digitally encoded television images of the optical section of the cornea are subjected to digital analysis. A density map may be constructed from the data derived in the digital analysis and produced for display either by a printer or display member. The display may be a three-dimensional plot of the frontal surface shape, local thickness, posterior surface contour and optical density of the cornea. A method of using the ophthalmic instrument and of making ophthalmic determinations is also disclosed.