Stock material or miscellaneous articles – Structurally defined web or sheet – Including variation in thickness
Reexamination Certificate
2006-10-10
2006-10-10
Pyon, Harold (Department: 1772)
Stock material or miscellaneous articles
Structurally defined web or sheet
Including variation in thickness
C428S001100, C349S106000, C349S107000, C252S299700
Reexamination Certificate
active
07118795
ABSTRACT:
A liquid crystal layer is formed on an alignment substrate13by the use of a photo-curing chiral nematic liquid crystal having cholesteric regularity, or the like, and liquid crystalline molecules in the liquid crystal layer are aligned by the alignment-regulating action of the alignment substrate13.A predetermined amount of radiation20is applied to the liquid crystal layer formed on the alignment substrate13to three-dimensionally cross-link and cure the liquid crystal layer, thereby forming a cholesteric layer12in the semi-cured state. Thereafter, the semi-cured cholesteric layer12formed on the alignment substrate13is brought into contact with an organic solvent21under the specific conditions. There is thus finally obtained an optical element10comprising the cholesteric layer12formed on the alignment substrate13.
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Ishizaki Kouji
Umeya Masanori
Dai Nippon Printing Co. Ltd.
Oliff & Berridg,e PLC
Simone Catherine A.
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