Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Video-rate fringe analyzer based on phase-shifting electronic moiré patterns

Not Accessible

Your library or personal account may give you access

Abstract

We have developed a fringe analyzer that delivers the phase distribution at a video rate from a fringe pattern containing a spatial carrier. It is based on parallel generations of three phase-shifted moiré patterns through electronic multiplication with computer-generated reference gratings and low-pass filtering. The phase distribution is derived by the subsequent parallel processing of these patterns on the basis of a three-step phase-shifting algorithm. By modification of the bias phase distribution of the reference gratings, several functions, such as correction of an initial wave-front error, are realized in real time. The usefulness of this analyzer is demonstrated experimentally for phase measurements by grating-projection surface topography and interferometry.

© 1997 Optical Society of America

Full Article  |  PDF Article
More Like This
One-shot dual-projection topography enhanced by phase-shifting logical moiré

Jiajia Jiang and Hongwei Guo
Appl. Opt. 60(19) 5507-5516 (2021)

Moire profilometry through simultaneous dual fringe projection for accurate phase demodulation: a comparative study

Sotero Ordones, Manuel Servin, and John S. Kang
Appl. Opt. 60(28) 8667-8675 (2021)

Single-shot digital phase-shifting Moiré patterns for 3D topography

Haiyun Guo, Haowen Zhou, and Partha P. Banerjee
Appl. Opt. 60(4) A84-A92 (2021)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (10)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (16)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Metrics

Select as filters


Select Topics Cancel
© Copyright 2022 | Optica Publishing Group. All Rights Reserved