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:
May. 21, 2002
Filed:
Sep. 21, 1999
Xavier Levecq, Gif sur Yvette, FR;
Samuel Bucourt, Bures sur Yvette, FR;
Imagine Optic, Orsay Cedex, FR;
Abstract
The invention concerns an optical device for the contactless measurement of the distance of a light source ( ) comprising optical detecting means ( ) consisting of elementary sensors and further comprising: a set of N imaging means (SP , SP , SP ), N≧3, that enable image acquisition of the light source on a plane in the proximity of the detecting means thereby forming with said means a set of hot spots, each spot spreading over at least two elementary sensors; a circuit for computing, on the basis of the relative positions of at least three hot spots, at least one characteristic parameter of the distance from the light source whereof the accuracy depends on N number of hot spots. The measuring device is characterized in that it is designed for industrial measurements (of dimensions, texture, position, vibrations, displacement).