Patent · US Expired

Spectrometer

US5182609A · kind A · utility

5Cited by

3References

4Claims

0Family size

Assignee

Zentralinstitut fur Optik und Spektroskopie · DE

Inventors

Stefan Florek · Berlin, DE
Reiner Guther · Berlin, DE
Helmut Becker-Ross · Berlin, DE

Key dates

Filing date	Apr 24, 1991
Grant date	Jan 26, 1993
Priority date	—
Expiry date	Apr 24, 2011

Classification

Technology area (CPC G)Physics
CPC primaryG01J3/20
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to a spectrometer useful in analytical spectroscopy. The spectrometer has an imaging diffraction grating, a planar receiver system, and an element for flattening the image field, wherein the improvement comprises that a body of low refractive power and perceptible secondary spectrum is used as the element for flattening the image field, said body having at least two optically active surfaces, and is disposed between the entry slit and the diffraction grating.

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