EP 2140240 A1 20100106 - METHOD OF DETERMINING AN OPTICAL WAVE DISTURBANCE
Title (en)
METHOD OF DETERMINING AN OPTICAL WAVE DISTURBANCE
Title (de)
VERFAHREN ZUR BESTIMMUNG EINER OPTISCHEN WELLENSTÖRUNG
Title (fr)
PROCEDE DE DETERMINATION D'UNE PERTURBATION D'UNE ONDE OPTIQUE
Publication
Application
Priority
- EP 2008054725 W 20080418
- FR 0754604 A 20070420
Abstract (en)
[origin: WO2008135363A1] According to the invention, a first wave (24) that has undergone a disturbance is made to interfere with an adaptive and continuously adjustable second wave (32), serving as reference wave, in order to obtain a set of interference fringes, the phase of the first wave is reconstructed from this set of fringes, and the disturbance (22) is determined from the phase thus reconstructed. The shape of the wavefront of the second wave is dynamically adjusted so as to obtain a number of interference fringes adapted to the reconstruction of the phase. The invention applies in particular to the characterization of defects present in optical components.
IPC 8 full level
G01J 9/02 (2006.01)
CPC (source: EP US)
G01J 9/02 (2013.01 - EP US)
Citation (search report)
See references of WO 2008135363A1
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 MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
FR 2915281 A1 20081024; FR 2915281 B1 20100514; EP 2140240 A1 20100106; US 2010290058 A1 20101118; WO 2008135363 A1 20081113
DOCDB simple family (application)
FR 0754604 A 20070420; EP 08736372 A 20080418; EP 2008054725 W 20080418; US 59642208 A 20080418