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
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.
© (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
PROCEEDINGS
4 PAGES


SHARE
RELATED CONTENT

Thin waveplate lenses: new generation in optics
Proceedings of SPIE (October 07 2015)
Use of a liquid crystal switch in single lens reflex...
Proceedings of SPIE (September 29 1994)
LCD-based stereoscopic imaging system
Proceedings of SPIE (August 29 2006)
New RGB tunable filter technology
Proceedings of SPIE (March 28 1996)

Back to Top