Share Email Print
cover

Proceedings Paper

New computer-controlled polarization phase-shifting technique
Author(s): G. C. Jin; Nai-Keng Bao; Po Sheun Chung
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

A new computer-controlled Phase-shifting apparatus based on polarization techniques is developed. This apparatus changes the phase only by rotating a polarizer using a precision step motor. The precision of this method can be higher than other methods due to the accurate control of rotating angle. Several applications of this technique to optical interferometry and 3D shape measurements are presented.

Paper Details

Date Published: 22 October 1993
PDF: 5 pages
Proc. SPIE 2066, Industrial Optical Sensing and Metrology: Applications and Integration, (22 October 1993); doi: 10.1117/12.162092
Show Author Affiliations
G. C. Jin, Tsinghua Univ. (Hong Kong)
Nai-Keng Bao, City Polytechnic of Hong Kong (Hong Kong)
Po Sheun Chung, City Polytechnic of Hong Kong (Hong Kong)


Published in SPIE Proceedings Vol. 2066:
Industrial Optical Sensing and Metrology: Applications and Integration
Kevin G. Harding; H. Philip Stahl, Editor(s)

© SPIE. Terms of Use
Back to Top