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:
Mar. 19, 2013
Filed:
Sep. 08, 2009
Kartsen Plamann, Palaiseau, FR;
Florent Aptel, Laxou, FR;
Caroline Crotti, Paris, FR;
Florent Deloison, Paris, FR;
Donald Peyrot, Limours, FR;
Kartsen Plamann, Palaiseau, FR;
Florent Aptel, Laxou, FR;
Caroline Crotti, Paris, FR;
Florent Deloison, Paris, FR;
Donald Peyrot, Limours, FR;
Ecole Polytechnique, Palaiseau, FR;
Centre National de la Recherche Scientifique, Paris, FR;
Ecole Nationale Superieure de Techniques Avancees, Paris, FR;
Abstract
An optical device for measuring the transmission and diffusion of a tissue of the front segment of an eye, includes: a light source; an optical collimation system for directing the collimated light beam towards a tissue of the front segment of an eye to be characterized; an optical mire placed on the optical path between the optical collimation system and the tissue; an optical imaging system capable of receiving a light beam transmitted by the mire and the tissue and capable of forming an image of the mire on an image detector; and an image processing system capable of calculating a modulation transfer function for the tissue from an image of the mire through the ocular medium. The optical mire includes a set of alternately light and dark angular sectors radially distributed from a central point. Different image processing methods for extracting a function representing the transmission and diffusion characteristics of the tissue are described.