Patent · US Expired

Apparatus for detecting and measuring fluorescence emission

US4084905A · kind A · utility

41Cited by

2References

1Claims

0Family size

Assignee

Canadian Patents and Development Limited · CA

Inventors

Ulrich Schreiber · Miltach, DE
William Vidaver · Vancouver, CA

Key dates

Filing date	Mar 11, 1976
Grant date	Apr 18, 1978
Priority date	—
Expiry date	Mar 11, 1996

Classification

Technology area (CPC G)Physics
CPC primaryG01N2201/062
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Apparatus for detecting and measuring fluorescence emission comprising a fluorometer probe including a light emitting means for illuminating the object under study, a red cut-off filter, a light sensitive detector for obtaining the fluorscence signal from the object, and a preamplifier connected to the phototransistor for amplifying the said signal to a first level, and power and control unit including electronic indicating means. In the preferred embodiment the sensor and emitter are a light emitting diode (LED) and a phototransistor arranged in piggy-back relation with the LED having an epoxy body acting as a fluorescence light guide from the object to the phototransistor.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.