9 May 1986 Bifocal, Electrically Switched Intraocular And Eyeglass Molecular Lenses
Author Affiliations +
Proceedings Volume 0601, Ophthalmic Optics; (1986) https://doi.org/10.1117/12.952467
Event: 1985 International Technical Symposium/Europe, 1985, Cannes, France
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.
© (1986) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Seymour P. Kern, Seymour P. Kern, } "Bifocal, Electrically Switched Intraocular And Eyeglass Molecular Lenses", Proc. SPIE 0601, Ophthalmic Optics, (9 May 1986); doi: 10.1117/12.952467; https://doi.org/10.1117/12.952467


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