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:
Jul. 21, 1992
Filed:
Apr. 23, 1990
Applicant:
Inventors:
Elmar Schmidt, Bruhl, DE;
Manfred Pauli, Schwetzingen, DE;
Assignee:
Boehringer Mannheim GmbH, Mannheim, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
356446 ; 356 39 ;
Abstract
Test carrier analysis device for determining the reflectivity of a test field surface (measurement surface). An optical unit (2) of the device contains several light transmitters (6, 7) and a measurement receiver, and the light transmitters are directed obliquely from above onto the measurement surface. Improved accuracy without additional outlay is achieved by the fact that the light transmitters (6, 7) in the optical unit (2) are arranged opposite one another with off-set planes of incidence (28, 29).