Scanning ultrasound detection device using two-wave mixing...

Details Scanning ultrasound detection device using two-wave mixing... Scanning ultrasound detection device using two-wave mixing...

2007-01-30

2007-01-30

Toatley, Jr., Gregory J. (Department: 2877)

Optics: measuring and testing

By light interference

For dimensional measurement

C073S657000

Reexamination Certificate

active

10629765

ABSTRACT:
This invention relates to a scanning ultrasound detection device using two-wave mixing in photorefractive crystal interferometry. An interferometer with two-wave mixing in photorefractive crystal, and cooperates with a confocal lenses module to perform a scan and inspection of the surface of a target. A rotating unit is used for directing a signal beam for detection to be incident upon different locations of the target. The confocal lens module is used to compensate any changes of reflection path caused by the signal beam having different incident angles. Hence, a reflected signal beam and a reference beam can strike on a photo detector.

REFERENCES:
patent: 5680212 (1997-10-01), Blouin et al.
patent: 5827971 (1998-10-01), Hale et al.
patent: 6813951 (2004-11-01), Blouin et al.
patent: 6819432 (2004-11-01), Pepper et al.

Affiliated with

Also associated with

Rating

Scanning ultrasound detection device using two-wave mixing... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Scanning ultrasound detection device using two-wave mixing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scanning ultrasound detection device using two-wave mixing... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3734328