EP 1763455 A1 20070321 - OPTICAL DEVICE FOR MEASURING AT LEAST A PARTIALLY TRANSPARENT MEDIUM THICKNESS
Title (en)
OPTICAL DEVICE FOR MEASURING AT LEAST A PARTIALLY TRANSPARENT MEDIUM THICKNESS
Title (de)
OPTISCHE VORRICHTUNG ZUR MESSUNG DER DICKE EINES MINDESTENS TEILWEISE TRANSPARENTEN MEDIUMS
Title (fr)
DISPOSITIF OPTIQUE DE MESURE DE L'EPAISSEUR D'UN MILIEU AU MOINS PARTIELLEMENT TRANSPARENT
Publication
Application
Priority
- FR 2005001603 W 20050624
- FR 0407493 A 20040706
Abstract (en)
[origin: WO2006013247A1] The inventive optical device (1) for measuring the thickness (e) of a first medium (2) which is at least partially transparent for an incident beam and covers a second medium (3) comprises a laser (5) for generating the light incident beam (4) in such a way that a beam (6) reflected by the first medium (2) surface and a beam (7) scattered by the second medium surface (3) are formed. Said device comprises a photosensitive linear array (8) for detecting the reflected beam (6) and the scattered beam (7) and a processing circuit (9) which is connected to the linear array (8) and enables to measure a space between the reflected beam (6) and the scattered beam (7) and to determine the thickness (e) of the first medium (2) according to the measured space. The processing circuit (9) determines a distance (H) between the linear array (8) and the surface of the second medium (3) from the position (d<sub
IPC 8 full level
B60R 16/02 (2006.01); G01B 11/06 (2006.01)
CPC (source: EP US)
B60R 16/0237 (2013.01 - EP US); G01B 11/0625 (2013.01 - EP US)
Citation (search report)
See references of WO 2006013247A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
FR 2872897 A1 20060113; FR 2872897 B1 20061013; EP 1763455 A1 20070321; JP 2008506095 A 20080228; JP 4633794 B2 20110216; US 2008068619 A1 20080320; US 7570372 B2 20090804; WO 2006013247 A1 20060209
DOCDB simple family (application)
FR 0407493 A 20040706; EP 05779706 A 20050624; FR 2005001603 W 20050624; JP 2007519829 A 20050624; US 62935505 A 20050624