Variable fresnel lens device

Details Variable fresnel lens device Variable fresnel lens device

1984-03-02

1986-03-18

Corbin, John K.

350379, 350380, 350452, 35016216, 350389, G02B 308, G02B 2744, G02F 105

Patent

active

045764417

ABSTRACT:
A ferroelectric focussing and defocussing device for operation at millimeter wavelengths applicable for use as a component in radar systems. Electrodes direct fields reversibly and continuously modify the refractive character of the ferroelectric material of the device as incoming radiation seeks to proceed along the optic axis of the material. The device includes first and second material media sharing complementary sides with Fresnel contours.

REFERENCES:
patent: 2591701 (1952-04-01), Jaffe
patent: 2600962 (1952-06-01), Billings
patent: 2939142 (1960-05-01), Fernsler
patent: 3257608 (1966-06-01), Bell et al.
patent: 3334958 (1967-08-01), Appeldorn
patent: 3369242 (1968-02-01), Johnson
patent: 3393034 (1968-07-01), Imai
patent: 3445851 (1969-05-01), Sheldon
patent: 3499701 (1970-03-01), Macek et al.
patent: 3503670 (1970-03-01), Kosanke et al.
patent: 3507550 (1970-04-01), Harris et al.
patent: 3513323 (1970-05-01), Sincerbox et al.
patent: 3522985 (1970-08-01), Rogers
patent: 3528728 (1970-09-01), Rogers
patent: 3555987 (1971-01-01), Browning
patent: 3558215 (1971-01-01), DeLang et al.
patent: 3574441 (1971-04-01), Harris et al.
patent: 3575487 (1971-04-01), Ohm et al.
patent: 3575488 (1971-04-01), Ohm et al.
patent: 3623795 (1971-11-01), Taylor et al.
patent: 3631501 (1971-12-01), Buscher et al.
patent: 3744875 (1973-07-01), Haertling et al.
patent: 3781086 (1973-12-01), Kumada et al.
patent: 3809461 (1974-05-01), Baumgardner et al.
patent: 3868172 (1975-02-01), Ii et al.
patent: 3938878 (1976-02-01), Fox
patent: 4129357 (1978-12-01), Frosch et al.
patent: 4154505 (1979-05-01), Kato et al.
patent: 4197008 (1980-04-01), Pinnow et al.
patent: 4201450 (1980-05-01), Trapani
patent: 4222638 (1980-09-01), Robert
patent: 4229073 (1980-10-01), Lotspeich
patent: 4327971 (1982-05-01), Kondo et al.
patent: 4340283 (1982-07-01), Cohen
M. B. Klein, Dielectric Waveguide Modulators at 95 GHz Using LiNb01(*), International Journal of Infrared and Millimeter Waves, vol. 3, No. 5, (1982).
M. B. Klein, Phase Shifting at 94 GHz Using the Electro-Optic Effect in Bulk Crystals, International Journal of Infrared and Millimeter Waves, vol. 2, No. 2, (1981).
Cecil E. Land and Philip D. Thacher, Ferroelectric Ceramic Electrooptic Materials and Devices, Proceedings of the IEEE, vol. 57, No. 5, May 1969.

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