Multifocal lens

Details Multifocal lens Multifocal lens

2007-10-30

2007-10-30

Spector, David N. (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave directional modulation

C351S161000, C351S168000, C349S013000

Reexamination Certificate

active

10595270

ABSTRACT:
Apparatus for enhancing vision of a user includes a focal modulation device (22), which is adapted to focus light from objects in a field of view of the user onto the retina while alternating between at least first and second focal states that are characterized by different, respective first and second focal depths, at a rate in excess of a flicker-fusion frequency of the user.

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U.S. Appl. No. 60/507,940, filed Oct. 3, 2003.
U.S. Appl. No. 60/543,567, filed Feb. 12, 2004.

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