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Proceedings Paper

Bifocal, Electrically Switched Intraocular And Eyeglass Molecular Lenses
Author(s): Seymour P. Kern
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Paper Abstract

A bifocal electronic molecular lens is described which can be switched between two foci without any grossly visible change in displacement, geometry, temperature or chemical composition. The lens requires very little power to change focus (on the order of tens to hundreds of nanoamps) so that long-term remote operation is anticipated. The principle of operation is based upon electronic control of optical polarization through a birefringent lens. Switching of focus is accomplished by controlling the molecular alignment of a film of liquid crystal molecules and thereby selecting between two orthogonal optical polarizations (P1 and P2). Polarization P1 is associated with focal point S1 and P2 is associated with focal point S2 through the birefringent lens. A number of useful new products are made possible by this lens. Specifically discussed are an electronic intraocular lens and electronic eyeglasses, both of which can be powered independently.

Paper Details

Date Published: 9 May 1986
PDF: 4 pages
Proc. SPIE 0601, Ophthalmic Optics, (9 May 1986); doi: 10.1117/12.952467
Show Author Affiliations
Seymour P. Kern, Applied Life Design Corporation (United States)

Published in SPIE Proceedings Vol. 0601:
Ophthalmic Optics
Karl H. Guenther, Editor(s)

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