Patent · US Active

Device and method for inspecting surfaces in the interior of holes

US7369225B2 · kind B2 · utility

16Cited by

13References

19Claims

0Family size

Assignee

MICRO-EPSILON-MESSTECHNIK GMBH & CO. KG · DE

Inventors

Bernhard Messerschmidt · Jena, DE
Karl Wisspeintner · Ortenburg, DE

Key dates

Filing date	Dec 8, 2006
Grant date	May 6, 2008
Priority date	—
Expiry date	Dec 8, 2026

Classification

Technology area (CPC G)Physics
CPC primaryG01B2210/50
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A device and method for checking surfaces in the interior of holes, depressions, or the like. The device and method are developed in such a manner that a multicolor light beam can be produced with a light source, wherein a light beam, due to the chromatic aberration of the imaging optics, can be focused onto several points at different distances from the imaging optics, such that the distance to the surface can be determined from the spectrum of the detected light beam.

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