Patent · US Expired

Optical sensor having atomically localized luminescence centers

US4569570A · kind A · utility

29Cited by

3References

7Claims

0Family size

Assignee

Asea Aktiebolag · SE

Inventors

Torgny Brogardh
Bertil Hok · Västerås, SE
Christer Ovren

Key dates

Filing date	May 26, 1983
Grant date	Feb 11, 1986
Priority date	—
Expiry date	May 26, 2003

Classification

Technology area (CPC G)Physics
CPC primaryG01K11/3213
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An optical sensor for detecting changes in physical quantities such as temperature, position, force, level, pressure, flow, acceleration, magnetic or electrical field strength or mechanical deformation, includes a luminescent material built up of atomically localized luminescence centers, included as a solid solution in an amorphous or mono-crystalline bonding material.

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