Patent · US Active

Lighting device

US9250197B2 · kind B2 · utility

0Cited by

5References

22Claims

0Family size

Assignee

GP Inspect GmbH · DE

Inventors

Vitaly Bezgachev · Birkenfeld, DE
Marc Hemsendorf · Birkenfeld, DE
Christian Probst · Birkenfeld, DE
Stefan Recht · Birkenfeld, DE
Stephanus Wansleben · Berlin, DE

Key dates

Filing date	Sep 14, 2009
Grant date	Feb 2, 2016
Priority date	—
Expiry date	Nov 26, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG01N21/8806
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method of examining an object containing a polycrystalline material, in which at least one part of the surface of the object is illuminated with substantially isotropic light, as well as a illumination device for carrying out the method. In this manner, the polycrystalline material is less influenced by the different reflection characteristics of individual particles of the polycrystalline material.

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