Title:
MULTIFOCAL LENS
Document Type and Number:
WIPO Patent Application WO2005033782
Kind Code:
A3
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.
Inventors:
KAUFMAN MICHA (IL)
KAUFMAN KALMAN (IL)
KAUFMAN KALMAN (IL)
Application Number:
PCT/IL2004/000786
Publication Date:
July 21, 2005
Filing Date:
August 30, 2004
Export Citation:
Assignee:
INVISIA LTD (IL)
KAUFMAN MICHA (IL)
KAUFMAN KALMAN (IL)
KAUFMAN MICHA (IL)
KAUFMAN KALMAN (IL)
International Classes:
G02B3/14; G02B26/02; G02C7/08; (IPC1-7): G02C7/08; G02B3/00
Foreign References:
| US4300818A | 1981-11-17 | |||
| US4756605A | 1988-07-12 | |||
| US4190330A | 1980-02-26 |
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