Low coherence interferometric system for phase stepping shearography combined with 3D profilometry

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8873068
SERIAL NO

13693674

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The present invention relates to a portable industrial instrument for performing, in an integrated and two-way manner, an interferometric fringe projection and shearography, on a object to be tested, so that, when the two-way interferometer (1) is associated with the coherent or quasi-coherent projection device (2), the instrument is able to measure the 3D shape of the object by interferometric fringe projection, also known as moiré method, and, when the two-way interferometer (1) is associated with the recording or imaging device (4), the instrument is able to perform shearographic measurements on the object, the direction of the traversing light beam in the interferometer (1) being reversed when shifting from one measurement configuration to the other one.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
UNIVERSITE DE LIEGE4000 LIÈGE
COCKERILL MAINTENANCE & INGENIERIE S A4100 SERAING

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Blain, Pascal Liège, BE 1 6
Habraken, Serge Comblain-au-Pont, BE 8 221
Renotte, Yvon Embourg, BE 2 16
Waroux, Pascal Verlaine, BE 1 6

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 Apr 28, 2026
Fee Large entity fee small entity fee micro entity fee
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00