Imaging optical system

Details Imaging optical system Imaging optical system

1997-06-09

2000-12-26

Font, Frank G.

Liquid crystal cells, elements and systems

Liquid crystal system

349 1, 349 33, G02F 113, G02F 1133

Patent

active

061667846

ABSTRACT:
An imaging optical system is disclosed. The system comprises a liquid crystal lens including a first body consisting of a substantially transparent birefringent liquid crystal member, a second body consisting of a substantially transparent birefringent liquid crystal member, and two pairs of electrodes for adding an electric field or a magnetic field onto the first body and the second body. A rear face of the first body is aligned perpendicular to a front face of the second body, the first body and the second body have substantially symmetrical shape against a plane perpendicular to an optical axis and plurality of optical elements are arranged front and after the liquid crystal lens.

REFERENCES:
patent: 4190330 (1980-02-01), Berreman
patent: 4679911 (1987-07-01), Jacobs et al.
patent: 5071229 (1991-12-01), Oaki et al.

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