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. 28, 1991
Filed:
Apr. 10, 1990
Marc Rioux, Ottawa, CA;
National Research Council of Canada, Ottawa, CA;
Abstract
A three dimensional imaging device has a converging lens system defining an optical axis extending in a direction Z, and a color sensitive position sensitive detector having a series of pixels extending in at least one of two mutually perpendicular directions X and Y both perpendicular to the direction Z. The lens system serves to simultaneously image a plurality of distributed points on a target surface onto the detector to generate first data on the coordinate of each point in at least a selected one, and preferably both, of the directions X and Y. A mask with a pair of differently colored filters, e.g. red and blue, spaced apart from each other in the selected direction is mounted in the lens system for forming a pair of discrete images on the detector of each point, such images being formed each in a respective color. The result is to generate, by means of measurement of the spacing between the images, second data on the coordinate of each point in the direction Z. The first and second data can then be extracted for all the points by scanning the pixels.