Switchable lens and method of making

Details Switchable lens and method of making Switchable lens and method of making

1997-05-02

1998-05-12

Ben, Loha

Optical: systems and elements

Optical modulator

Light wave directional modulation

359296, 359320, 359279, G02F 129

Patent

active

057514712

ABSTRACT:
A switchable lens includes first and second optically transparent substrates, a first electrically conductive, optically transparent contact film positioned on a surface of the first optically transparent substrate, a second electrically conductive, optically transparent contact film positioned on a surface of the second optically transparent substrate, and phase modulating material sandwiched between the first and second electrically conductive, optically transparent contact films. The phase modulating material has a lens function stored therein which is temporarily erasable by a potential applied between the first and second electrically conductive, optically transparent contact films, the phase modulating material thereby being capable of modulating light passing therethrough.

REFERENCES:
patent: 3767392 (1973-10-01), Ota
patent: 3772013 (1973-11-01), Wells
patent: 4093534 (1978-06-01), Carter et al.
patent: 4919521 (1990-04-01), Tada et al.
patent: 5204772 (1993-04-01), Hirata et al.

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