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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.:

US 5636017 B1

PDFFull Text
Date of Patent:
Jun. 03, 1997

Filed:

Mar. 11, 1994

Optical detection arrangement for small volume chemical analysis of

Applicant:
Inventors:

Alfredo E Bruno, Oberwil, CH;

Beat Krattiger, Riehen, CH;

Carlo S Effenhauser, Weil am Rhein, DE;

Francois Maystre, Reinach, CH;

Philippe Nussbaum, Hegenheim, FR;

Assignee:

Ciba-Geigy Corporation, Tarrytown, NY (US);

Attorney:

Dohmann; George R.

Primary Examiner:

Richard A Rosenberger

Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
356246 ; 356440 ;
Abstract

An optical detection arrangement for small volume chemical analysis comprises a light source (22), a capillary tube (23) and a photoelectric detector (24). The arrangement of the light source (22) relative to the capillary tube (23) is such, that probing light (P) emitted from the light source (22) strikes a sample (S) to be analyzed, which is flowing through the capillary tube (23), whereas the photoelectric detector (24) is arranged relative to the capillary tube (23) such, that it is capable of detecting light comming from the capillary tube. The photoelectric detector (24) is connected with an evaluation electronics. Between the light source (22) and the capillary tube (23)the probing light (P) is guided essentially in a guiding means (26) which is made of a material having a refractive index gradient about perpendicular to the direction of propagation of the probing light (P), and which is connected to the capillary tube (23) such that probing light (P) exiting the guiding material (26) strikes the capillary tube (23). Preferably light emitting diodes (LEDs) or laser diodes are used as light source (22).

Find Patent Forward Citations

Bruno, Alfredo. (1997). Optical detection arrangement for small volume chemical analysis of (U.S. Patent No. 5636017). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5636017

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