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28.3: General Methodology for LCoS Panel Compensation
Author(s) -
Chen Jianmin,
Robinson Michael G.,
Sharp Gary D.
Publication year - 2004
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.1825811
Subject(s) - liquid crystal on silicon , compensation (psychology) , contrast (vision) , residual , limiting , optics , high contrast , contrast ratio , computer science , mathematics , liquid crystal , physics , algorithm , engineering , mechanical engineering , psychology , psychoanalysis
A general three‐step methodology is presented to optimize contrast when compensating LCoS panels. The first step acts to compensate the in‐plane residual retardation, while the second one improves the field of view (FOV) using either MacNeille‐type or wire‐grid polarizing beamsplitters (PBS). The orientation of the LCoS panel and compensator, relative to the MacNeille PBS, are very critical to achieve good system contrast. The final step is to account for reflections from anisotropic material, which can contribute field components that appear as on‐state light, limiting contrast.