TY - JOUR
T1 - High-definition imaging system based on spatial light modulators with light-scattering mode
AU - Kikuchi, Hiroshi
AU - Fujii, Takanori
AU - Kawakita, Masahiro
AU - Hirano, Yoshiyuki
AU - Fujikake, Hideo
AU - Sato, Fumio
AU - Takizawa, Kuniharu
PY - 2004/1/1
Y1 - 2004/1/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0346007956&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0346007956&partnerID=8YFLogxK
U2 - 10.1364/AO.43.000132
DO - 10.1364/AO.43.000132
M3 - Article
AN - SCOPUS:0346007956
SN - 1559-128X
VL - 43
SP - 132
EP - 142
JO - Applied Optics
JF - Applied Optics
IS - 1
ER -