Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Patent
1992-11-17
1994-10-04
Gross, Anita P.
Optical: systems and elements
Holographic system or element
Using a hologram as an optical element
430 95, G02F 1135, G03G 158
Patent
active
053531396
ABSTRACT:
A spatial light modulator capable of providing high contrast ratio and resolution moving pictures without an after-image effect is disclosed. The spatial light modulator comprises a pair of transparent electrodes for forming a driving electric field therebetween, and at least one photo-modulation member and a photoconductive member laminated between the pair of transparent electrodes, where the photoconductive member comprises a hydrogenated amorphous silicon film having thickness of 10 .mu.m to 30 .mu.m, and is doped with boron as such that an amount of the boron in the hydrogenated amorphous silicon film in atomic ratio with respect to silicon therein is 0.1 ppm to 1 ppm.
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Ashley et al, "Amorphous Silicon Photoconductor in a Liquid Crystal Spatial Light Modulator", Applied Optics, vol.., 26 No. 2 (Jan. 1987), pp. 241-246.
Preprint for the 51st Meeting (1990) of the Japan Society of Applied Physics. p. 743, a Paper 29a-MF-2 is introduced by Hatano et al.
Preprint for the 17th Liquid Crystal Panel Discussion (1991) Under the Joint Auspices of the Japan Society of Applied Physics the Society of Polymer Science, Japan, and the Chemical Society of Japan, a Paper 4F108 is Introduced.
Konno Toshio
Ohkouchi Nozomu
Shimada Tadayuki
Shimizu Shigeo
Takenaka Hiromitsu
Gross Anita P.
Meller Michael N.
Victor Company of Japan Ltd.
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