Interferometric integration technique and apparatus to confine 2

Details Interferometric integration technique and apparatus to confine 2 Interferometric integration technique and apparatus to confine 2

1992-03-09

1994-06-14

Turner, Samuel A.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

356347, 356360, 356353, 364525, 364566, 382 41, 382 42, 382 44, 382 54, G01B 1100

Patent

active

053214978

ABSTRACT:
A method and system are described for performing phase unwrapping integrations in a phase-shifting interferometric profiling operation. The disclosed technique uses one characteristic of modulation or slope distributions to segment the modulation or slope histogram into a plurality of sections. The principal phase values are divided into a plurality of groups in accordance with corresponding modulation or slope histogram sections. The phase unwrapping integrations are performed in such an order that the areas with a high probability of containing a 2.pi. discontinuity are contained in the last group integrated. Thus, inaccuracies due to 2.pi. discontinuities do not "propagate" to earlier-computed phase values computed by the phase unwrapping algorithm.

REFERENCES:
patent: 4692027 (1987-09-01), MacGovern et al.
patent: 4697927 (1987-10-01), Ono
patent: 4768881 (1988-09-01), Juptner et al.
patent: 4791584 (1988-12-01), Greivenkamp, Jr.
patent: 4794550 (1988-12-01), Greivenkamp, Jr.
patent: 4832489 (1989-05-01), Wyant et al.
patent: 5018861 (1991-05-01), Remo
patent: 5133601 (1992-07-01), Cohen et al.

Affiliated with

Also associated with

Rating

Interferometric integration technique and apparatus to confine 2 does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Interferometric integration technique and apparatus to confine 2, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interferometric integration technique and apparatus to confine 2 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1253105