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:
Feb. 06, 1996
Filed:
Mar. 07, 1995
Anand Hariharan, Ann Arbor, MI (US);
Donald J Harter, Ann Arbor, MI (US);
Imra America, Inc., Ann Arbor, MI (US);
Abstract
An optical correlator is disclosed that, in combination with an ultrafast optical pulsed source, can be used for estimating the differential position of remote objects with submicron precision, as opposed to measuring the absolute distance. The system includes an ultrafast pulsed laser source feeding into an amplitude-division device, with each amplitude component leading to an entity for launching pulsed radiation at the target, along with an entity for collecting the radiation scattered or reflected off the surface of the object, a nonlinear device for time-gating the collected signal with the amplitude-divided source, and a detection device for observing the time-gated signal. The device has remarkable spatial resolution and sensitivity. Applications of the technique to the measurement of torque, angular deformation, and two- and three-dimensional surface profilometry are presented.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile