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:
Jan. 24, 2012
Filed:
Nov. 07, 2008
Uwe Sperling, Gerestried, DE;
Peter Schwarz, Koengisdorf, DE;
Uwe Sperling, Gerestried, DE;
Peter Schwarz, Koengisdorf, DE;
BYK-Gardner GmbH, , DE;
Abstract
A colour measuring unit () comprising a radiation device () which emits light onto a surface () to be examined, wherein the radiation device () comprises at least one semiconductor-based light source (), and a radiation detector device () which receives at least a portion of the light scattered by the surface and outputs a signal characteristic of this light, wherein the radiation detector device () allows a spectral analysis of the light impinging thereon. According to the invention, the colour measuring unit comprises at least one sensor device () which determines at least one electrical parameter of the light source (), and also a processor device () which outputs from this measured parameter at least one value characteristic of the light emitted by the radiation device ().