EP 2370780 A1 20111005 - OPTICAL APPARATUS FOR NON-CONTACT MEASUREMENT OR TESTING OF A BODY SURFACE
Title (en)
OPTICAL APPARATUS FOR NON-CONTACT MEASUREMENT OR TESTING OF A BODY SURFACE
Title (de)
OPTISCHE ANORDNUNG ZUM BERÜHRUNGSLOSEN MESSEN ODER PRÜFEN EINER KÖRPEROBERFLÄCHE
Title (fr)
MONTAGE OPTIQUE POUR LA MESURE OU LE CONTRÔLE SANS CONTACT DE LA SURFACE D'UN CORPS
Publication
Application
Priority
- EP 2009066271 W 20091202
- DE 102008060621 A 20081205
Abstract (en)
[origin: WO2010063775A1] The invention relates to an optical apparatus for non-contact measurement or testing of characteristics of a body surface, such as curvature, profile, contour, roughness, position. The apparatus is suitable both for quality control of technical surfaces through measurement or comparison with reference surfaces and for measurement of microstructures on surfaces. Thus, roughnesses can be measured that are smaller than the wavelength of the light illuminating them. According to the invention, an optical apparatus of the above type comprises: - means for forming a gap between the body surface and a reference edge, - a device for depicting the gap on a detector, and - an evaluation unit connected to the detector, said unit adapted to - determine gap widths located next to one another using the output signals of the detector, and - to determine curvature, profile, contour or roughness of the body surface using the adjacent gap widths. From the comparison of the images acquired from two arbitrary positions within a drill hole, a tilting between a measured object and a measuring device can be concluded.
IPC 8 full level
G01B 11/12 (2006.01); G01B 11/24 (2006.01); G01B 11/30 (2006.01)
CPC (source: EP US)
G01B 11/12 (2013.01 - EP US); G01B 11/2433 (2013.01 - EP US); G01B 11/303 (2013.01 - EP US)
Citation (search report)
See references of WO 2010063775A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
WO 2010063775 A1 20100610; CN 102239384 A 20111109; CN 102239384 B 20140305; DE 102008060621 B3 20100812; EP 2370780 A1 20111005; US 2012069351 A1 20120322; US 8767218 B2 20140701
DOCDB simple family (application)
EP 2009066271 W 20091202; CN 200980148670 A 20091202; DE 102008060621 A 20081205; EP 09759965 A 20091202; US 200913132808 A 20091202