Patent · US Active

Multifunctional optical micro sensor system

US9300397B2 · kind B2 · utility

0Cited by

0References

9Claims

0Family size

Assignee

ELMOS SEMICONDUCTOR SE · DE

Inventors

Michael Hase · Wiesloch, DE
Michael Domokos · Hennef (Sieg), DE
Uwe Hendrik Hill · Remchingen, DE

Key dates

Filing date	Jan 22, 2014
Grant date	Mar 29, 2016
Priority date	—
Expiry date	Jan 22, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG01S17/04
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A device for measuring a measured optical transmission path includes a first optical transmitter transmitting into the measured optical tramsmission path and a compensation transmitter transmitting into a compensation optical transmission path. The device includes an optical receiver for receiving transmissions from each of the first optical transmitter and the compensation transmitter. A controller controls the compensation transmitter and provides a controller output signal representative of a measured value of the first transmission path. A nose piece separates the optical transmitter from the optical receiver. The compensation transmitter is placed in a first cavity. The receiver is placed in a second cavity. A filter in the measured optical transmission path has a transmissivity for the wavelength of the light of the first optical transmitter of at least 50% and an absorption factor for the wavelength of the light of the compensation transmitter of at least 25%.

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