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:
Mar. 14, 1995
Filed:
Feb. 10, 1994
Hartmut Stark, Stockelsdorf, DE;
Peter Dreyer, Pansdorf, DE;
Dragerwerk Aktiengesellschaft, Lubeck, DE;
Abstract
The invention is directed to an apparatus for optically evaluating colorimetric coloration zones automatically wherein not only a single testing tube but also a plurality of reaction zones applied one behind the other to a common carrier can be evaluated. The least quantity of indicator substances for the coloration zones is used and an adequate signal intensity with the least possible consumption of power for the optical signal evaluation is attained. At the same time, the sensitivity to faults is reduced. Such an apparatus includes transmission as well as receiving units on a common mounting carrier. The light of the transmitting unit is conducted via a light conductor through the region of the reagent carrier which is transmittent and the coloration of the channel-shaped reaction zones of the carrier is detected in transmission and reflectance.