Aperture sampling coherence sensor and method

Details Aperture sampling coherence sensor and method Aperture sampling coherence sensor and method

1988-07-05

1990-06-19

Scott, Jr., Leon

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

G01B 902

Patent

active

049348159

ABSTRACT:
In a speckle imaging process, the contribution of non-uniform, incoherent background illumination is removed via an aperture sampling technique. A pair of uncorrelated speckle images are produced and subtracted from one another to eliminate the non-coherent background contribution. The result of this subtraction is rectified so as to provide a signal which may be displayed on a video display. Disclosed are techniques for real time video display of enhanced speckle images as well as techniques for visualizing vibrational modes and surface roughness mapping.

REFERENCES:
patent: 4350443 (1982-09-01), Williamson
patent: 4743752 (1988-05-01), Olsen et al.
Creath et al., "Vibration-Observation Techniques for Digital Speckle-Pattern Interferometry", J. Opt. Soc. Am. A., vol. 2, No. 10, Oct. 1985.

Affiliated with

Also associated with

Rating

Aperture sampling coherence sensor and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Aperture sampling coherence sensor and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aperture sampling coherence sensor and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2256539