Patent · US Active

Laser wavelength tracking via direct laser measurement and optical filters in a spectrometer

US8823931B1 · kind B1 · utility

1Cited by

2References

17Claims

0Family size

Assignee

Redox Biomedical, Inc. · US

Inventors

Ueyn L. Block · Menlo Park, US
Stephen J. Waydo · Campbell, US
Rudolf J. Hofmeister · Sunnyvale, US

Key dates

Filing date	Nov 12, 2012
Grant date	Sep 2, 2014
Priority date	—
Expiry date	Mar 29, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG01J2003/1213
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An optical system is described where a portion of the Rayleigh light arriving from a sample is incident on the same image sensor as a Raman signal to be measured. As a result, the difference in wavelength between the measured Rayleigh line and the measured Raman peaks may be determined directly without the need for a separate sensor, optical path, or calibration.

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