Measurement of phase objects by the use of color phase-shifting technique

Oscar E. Castillo; Ricardo Legarda-Sáenz; Jorge L. Flores; G. Garcia-Torales

doi:10.1117/12.2025202

19 September 2013 Measurement of phase objects by the use of color phase-shifting technique

Oscar E. Castillo, Ricardo Legarda-Sáenz, Jorge L. Flores, G. Garcia-Torales

Proceedings Volume 8867, Infrared Remote Sensing and Instrumentation XXI; 886710 (2013) https://doi.org/10.1117/12.2025202
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

Abstract

A simple technique for wavefront measurement is presented. This technique is based on the use of a computer display (LCD monitor) to generate color fringe patterns, which are imaged by a single-CCD color camera; whereas a phase object is placed in the ray path for imaging. The ray de ections distort the image of the pattern. By measuring this distortion, the gradients of the phase change caused by the object can be obtained. For the evaluation of the acquired fringe patterns, we use a classical phase-shifting technique with three fringe patterns encoded in a single color image displayed by the monitor; therefore, this proposed technique allows for real-time object shape measurement. Experiments are presented to demonstrate the success of this technique.

Citation Download Citation

Oscar E. Castillo, Ricardo Legarda-Sáenz, Jorge L. Flores, and G. Garcia-Torales "Measurement of phase objects by the use of color phase-shifting technique", Proc. SPIE 8867, Infrared Remote Sensing and Instrumentation XXI, 886710 (19 September 2013); https://doi.org/10.1117/12.2025202

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available