Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Patent
1994-07-26
1996-03-19
Gross, Anita Pellman
Optical: systems and elements
Holographic system or element
Using a hologram as an optical element
359100, 345 97, G02F 113, G02F 11343
Patent
active
055007490
ABSTRACT:
In a ferroelectric liquid crystal element, which is constituted by holding a chiral smectic liquid crystal exhibiting ferroelectricity between electrode substrates, and in which the liquid crystal presents a plurality of surface stabilization states according to an electric field applied through the electrode substrates, and an alternating electric field having a strength equal to or higher than a constant value is applied during a period for inhibiting transition of the surface stabilization state, and to a corresponding liquid crystal portion, within a range causing no transition, the strength of the alternating electric field to be applied during the period for inhibiting transition of the surface stabilization state, and to the corresponding liquid crystal portion is set to be equal to or lower than a predetermined value which does not cause the liquid crystal to flow.
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Inaba Yutaka
Mizuno Hironobu
Okada Shinjiro
Taniguchi Osamu
Canon Kabushiki Kaisha
Gross Anita Pellman
Parker Kenneth
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