Optical elements based on liquid-crystalline substances with no

Details Optical elements based on liquid-crystalline substances with no Optical elements based on liquid-crystalline substances with no

1993-02-01

1994-10-25

Gross, Anita P.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 93, 359 98, G02F 11337, G02F 1137, G02F 113

Patent

active

053594398

ABSTRACT:
The invention relates to optical elements based on liquid-crystalline substances, and to a process for the production thereof. The optical elements based on liquid-crystalline substances are ones which exhibit no birefringence in a defined direction of incidence, optical elements in which no birefringence occurs perpendicularly to the surface being excepted. The process for preparing the optical elements comprises illuminating a liquid-crystalline substance with unpolarized light of suitable wavelength at a defined angle in such a way that, after illumination, the director of this substance is aligned parallel to the direction of the illuminating light on passing through said substance.

REFERENCES:
patent: 4410570 (1983-10-01), Kreuzer et al.
patent: 5032009 (1991-07-01), Gibbons et al.
patent: 5073294 (1991-12-01), Shannon et al.
patent: 5098978 (1992-03-01), Riepl et al.
320 Applied Physics Letters, vol. 60, (6 Jan., 1992) No. 1, New York, U.S. "Optically induced and erased birefringence and dichroism in azoaromatic polymers".
8327 Nikkei High Tech Report IV (1989) Jan. 9, No. 5, Tokyo, JP "Exotic Combination of Materials Yields Viable Liquid-Crystal Recording Medium".
Letters to Nature, vol. 351, Research Ceter, Hercules Inc., Wilmington, Del. 19894, U.S., May 2, 1991, Gibbons et al., "Surface-mediated alignment of nematic liquid crystals with polarized laser light".
G. Allen & J. C. Bevington Eds., Comprehensive Polymer Science, vol. 5, pp. 701-732, Pergamon Press (1989) "Polymers with Main-chain Mesogenic Units".
Ullmanns Encyklopadie der technischen Chemie, vol. 4, No. 11, 657-671, Verlag Chemie 1976 "Erdol und Erdgas bis Formazanfarbstoffe".
Encyclopedia of Polymer Science and Engineering, vol. 9, 2nd Ed., pp. 1-61, J. Wiley & Sons 1987 "Liquid Crystalline Polymers to Mining Applications".
Bermann-Schaefer, Lehrbuch der Experimentalphysik, vol. III: Optik, 7th Ed. (1987), pp. 560-567.
De Vries, Acta Cryst. (1951), vol. 4 pp. 219-226, Netherlands "Rotary Power and Other Optical Properties of Certain Liquid Crystals".
Journal of Fusion Energy, vol. 5, No. 1, 1986, Stephen D. Jacobs "Liquid Crystal Devices for Laser Systems".
H. J. Eberle, A. Miller and F.-H. Kreuzer, Liquid Crystals, (1989), vol. 5, No. 3, pp. 907-916 "Inverse angle dependence of the reflection colours of cholesteric polymeric liquid crystals mixed with pigments".
J. Am. Chem. Soc. 1989, vol. 111, No. 21 pp. 8119-8125, J. W. Goodby et al. "A New Molecular Ordering in Helical Liquid Crystals".
Liquid Crystals, 1991, vol. 10, No. 4, pp. 445-456, T. J. Bunning et al. "Bilayer structures in cholesteric, cyclic-siloxane liquid crystals".
D. Demus, L. Richter, Verlag Chemie Weinheim, New York 1978 "Textures of Liquid Crystals", pp. 16-18.
J. Chatt, L. M. Vallarino, L. M. Venanzi, J. Chem. Soc. (London) (1957) pp. 2496-2505 "Olefin Co-ordination Compounds Part IV".
H. C. Clark and L. E. Manzer, J. Organometallic Chemistry vol. 59 (1973), pp. 411-428 "Reactions of (.pi.-1,5-Cylooctadiene)organoplatinum(II) compounds and the synthesis of perfluoroalkylplatinum complexes".
Meier G., Physical Properties of Liquid Crystals, ed.: Meier, Sackmann, Grabmeier, Springer Verlag (1975), pp. 9-11.

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