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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 39, Iss. 2 — Jan. 10, 2000
  • pp: 337–344

Programmable color liquid-crystal television spatial light modulator: transmittance properties and application to speckle-correlation displacement measurement

John Aiken and Brian Bates  »View Author Affiliations


Applied Optics, Vol. 39, Issue 2, pp. 337-344 (2000)
http://dx.doi.org/10.1364/AO.39.000337


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Abstract

Drive electronics developed for a color liquid-crystal television (LCTV) display enable data to be written onto individual pixels. Display transmittance characteristics obtained with the new and the original TV drive electronics are compared. The enhanced performance obtained through this development has some potential for spatial light modulator applications in color, optical information processing based on the low-cost LCTV. As an example, we describe a novel, to our knowledge, speckle metrology technique used to display fringes and to output correlation peaks resulting from in-plane object displacement. This requires only a single LC display to encode, simultaneously in three pixel colors, speckle and fringe patterns for real-time measurements. Relative merits of this technique, including displacement range and temporal resolution, are discussed.

© 2000 Optical Society of America

OCIS Codes
(120.6160) Instrumentation, measurement, and metrology : Speckle interferometry
(230.3720) Optical devices : Liquid-crystal devices
(230.6120) Optical devices : Spatial light modulators

Citation
John Aiken and Brian Bates, "Programmable color liquid-crystal television spatial light modulator: transmittance properties and application to speckle-correlation displacement measurement," Appl. Opt. 39, 337-344 (2000)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-39-2-337


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References

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