Patent · US Expired

Light detector based on fluorescent dyes

US5132530A · kind A · utility

21Cited by

5References

5Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Werner Groh · Lich, DE
Jochen Coutandin · Bretzenheim, DE
Peter Herbrechtsmeier · Königstein, DE
Jurgen Theis · Oberursel, DE

Key dates

Filing date	Sep 18, 1991
Grant date	Jul 21, 1992
Priority date	—
Expiry date	Sep 18, 2011

Classification

Technology area (CPC G)Physics
CPC primaryG01D5/26
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A light detector consists of a plate-like light-absorbing body and at least one optical waveguide connected thereto. Both parts of the light detector contain a fluorescent dye, whereby the irradiated light is converted into a fluorescence radiation. This radiation is guided by total reflection to a light-sensitive semiconductor element and is measured there. The light detector is suitable as light barrier, fiber-optic revolution counter or UV detector.

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