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:
Jun. 08, 1999
Filed:
Jul. 14, 1997
Applicant:
Inventor:
Norbert Furstenau, Braunschweig, DE;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B / ;
U.S. Cl.
CPC ...
356351 ; 356364 ;
Abstract
A light source supplies light to an interferometer or polarimetric sensor and a beam divider divides the emerging light into two or more beam paths. Interference filters having different central wavelengths are provided in the beam paths and can be used to bring the two uncoupled interference signals into quadrature, e.g. by suitable adjustment of the tilting angle. In each beam path, a measuring device for quantitatively measuring the received light is disposed, and the data from the measuring devices are supplied to a data-processing device.