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:
Oct. 05, 2010
Filed:
Apr. 30, 2007
Torbjorn Sandstrom, Pixbo, SE;
Torbjorn Sandstrom, Pixbo, SE;
Micronic Laser Systems AB, Taby, SE;
Abstract
A method and device for optical determination of physical properties of features, not much larger than the optical wavelength used, on a test sample are described. A beam is split into reference and illuminating beams having known polarization. The test sample is exposed to the illuminating beam and recombined to form an image. The image is detected using at least one sensor, which may be cameras. A point-to-point map of polarization, phase and power is extracted from data representing the image. Optionally, the sensor may be a camera. The sensor may detect at least three optical parameters, such as a Stokes vector, a Jones vector, a Jones matrix, a Mueller matrix or a coherency matrix.