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:
Nov. 16, 2004
Filed:
Jul. 24, 2002
Applicant:
Inventor:
Reiner Spolaczyk, Hamburg, DE;
Assignee:
Eppendorf AG, Hamburg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B 1/114 ;
U.S. Cl.
CPC ...
G01B 1/114 ;
Abstract
An apparatus for handling liquids and including a lighting installation for lighting an approximately punctiform illumination point in the room, an approximately punctiform light-receiving device having a photodetector for providing a measuring signal dependent on the intensity of the light received, an imaging system for imaging the illumination point onto the approximately punctiform light-receiving device, and an evaluation device for detecting the approaching of an interface between two media of different refractive indices to the illumination point by evaluating the measuring signals provided by the photodetector.