Comparison between LCOS projector and DLP projector in generating digital sinusoidal fringe patterns

Beiwen Li; John Gibson; Jill Middendorf; Yajun Wang; Song Zhang

doi:10.1117/12.2022225

6 September 2013 Comparison between LCOS projector and DLP projector in generating digital sinusoidal fringe patterns

Beiwen Li, John Gibson, Jill Middendorf, Yajun Wang, Song Zhang

Proceedings Volume 8839, Dimensional Optical Metrology and Inspection for Practical Applications II; 883908 (2013) https://doi.org/10.1117/12.2022225
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

Abstract

Digital-light-processing (DLP) and liquid-crystal-on-silicon (LCOS) are two digital projection technologies which enjoy great popularity. This paper will demonstrate the performance of the two technologies in generating digital sinusoidal fringe patterns in the two following ways: focused-sinusoidal-patterns (FSP) method and defocused-binary-patterns (DBP) method. Experiment shows that for the FSP method, LCOS projector is a better choice since nonlinear gamma effect is less significant and there is no need for precise synchronization; While for the DBP method, DLP projector has the advantage over LCOS projector since the generated images have higher contrast ratio.

Citation Download Citation

Beiwen Li, John Gibson, Jill Middendorf, Yajun Wang, and Song Zhang "Comparison between LCOS projector and DLP projector in generating digital sinusoidal fringe patterns", Proc. SPIE 8839, Dimensional Optical Metrology and Inspection for Practical Applications II, 883908 (6 September 2013); https://doi.org/10.1117/12.2022225

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