Multifocal lens
First Claim
Patent Images
1. Apparatus for enhancing vision of a user having an eye that includes a retina, the apparatus comprising:
- a focal modulation device, 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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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.
77 Citations
39 Claims
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1. Apparatus for enhancing vision of a user having an eye that includes a retina, the apparatus comprising:
a focal modulation device, 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11-27. -27. (canceled)
- 28. A method for enhancing vision of a user having an eye that includes a retina, the method comprising focusing light from objects in a field of view of the user onto the retina in alternation between at least first and second focal states that are characterized by different, respective first and second focal depths, at a rate of alternation that is in excess of a flicker-fusion frequency of the user.
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39-64. -64. (canceled)
Specification