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

Beiwen Li | Zendy; J. Paul Gibson | Zendy; Jill M. Middendorf | Zendy; Yajun Wang | Zendy; Song Zhang | Zendy

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

Author(s) -

Beiwen Li,

J. Paul Gibson,

Jill M. Middendorf,

Yajun Wang,

Song Zhang

Publication year - 2013

Publication title -

proceedings of spie, the international society for optical engineering/proceedings of spie

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.192

H-Index - 176

eISSN - 1996-756X

pISSN - 0277-786X

DOI - 10.1117/12.2022225

Subject(s) - liquid crystal on silicon , projector , digital light processing , computer science , computer graphics (images) , projection (relational algebra) , spatial light modulator , liquid crystal display , computer vision , optics , physics , algorithm , operating system

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.

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