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:
Aug. 08, 2017
Filed:
Mar. 12, 2015
Byk-gardner Gmbh, Geretsried, DE;
Uwe Sperling, Geretsried, DE;
Peter Schwarz, Geretsried, DE;
BYK-GARDNER GMBH, , DE;
Abstract
The invention relates to an apparatus for the investigation of surface properties with a housing, a light source which directs light through an opening in the housing onto a surface to be investigated, with a first detector device which is arranged inside at a first pre-set angle with respect to the light beam radiated onto the surface by the light source, with a second detector device which is arranged at a second pre-set angle with respect to the light beam radiated onto the surface by the light source and with a third detector device which is arranged inside the housing at a third pre-set angle with respect to the light beam radiated onto the surface by the light source. According to the invention the apparatus has at least two filter elements with optical properties which are different from each other which are arranged on a common carrier movable with respect to the light source, in such a way that each of these filter elements is optionally capable of being brought into a beam path between the light source and the surface.