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. 10, 2003
Filed:
Oct. 09, 2001
Applicant:
Inventors:
Erland Max, Vastra Frolunda, SE;
Peter Larsson, Vastra Frolunda, SE;
Assignee:
Volvo Personvagnar AB, Göteborg, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 1/130 ;
U.S. Cl.
CPC ...
G01B 1/130 ;
Abstract
An arrangement and method for measuring surface irregularities of an object comprising at least one source of light arranged to illuminate the object from at least two different positions at a small angle of incidence towards the object, a camera arranged to measure the shadow formation generated by the illumination of the surface microstructure, and an evaluator for determining the surface microstructure from the generated shadow formation by means of signal processing of an input signal from the camera.