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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 43, Iss. 1 — Jan. 1, 2004
  • pp: 132–142

High-definition imaging system based on spatial light modulators with light-scattering mode

Hiroshi Kikuchi, Takanori Fujii, Masahiro Kawakita, Yoshiyuki Hirano, Hideo Fujikake, Fumio Sato, and Kuniharu Takizawa  »View Author Affiliations


Applied Optics, Vol. 43, Issue 1, pp. 132-142 (2004)
http://dx.doi.org/10.1364/AO.43.000132


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Abstract

We have developed a prototype high-definition imaging system using polymer-dispersed liquid-crystal (PDLC) light valves, which can modulate unpolarized light with high spatial resolution and exhibit a high optical efficiency, based on the light-scattering effect. We fabricated high-definition light valves with a fine polymer-matrix structure in a PDLC film by controlling the curing conditions used during the photopolymerization-induced phase separation and formation process. This device has excellent characteristics, such as a high resolution, with 50 lp/mm for a limiting resolution and greater than 20 lp/mm at the 50% modulation transfer function point, and a reflectivity of greater than 60%. An optically addressable full-color projection display was designed, consisting of three PDLC light valves, a schlieren optical system based on shift-decentralization optics with a xenon lamp illumination and input-image sources with 1.5 million pixels, including electrical image compensation of the gamma characteristics. We succeeded in displaying pictures on a 110-inch screen with a resolution of 810 TV lines and a luminous flux of 1900–2100 American National Standards Institute lumens.

© 2004 Optical Society of America

OCIS Codes
(120.2040) Instrumentation, measurement, and metrology : Displays
(220.4830) Optical design and fabrication : Systems design
(230.3720) Optical devices : Liquid-crystal devices
(230.6120) Optical devices : Spatial light modulators

Citation
Hiroshi Kikuchi, Takanori Fujii, Masahiro Kawakita, Yoshiyuki Hirano, Hideo Fujikake, Fumio Sato, and Kuniharu Takizawa, "High-Definition Imaging System Based on Spatial Light Modulators with Light-Scattering Mode," Appl. Opt. 43, 132-142 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-1-132

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