Electro-active multi-focal spectacle lens
First Claim
Patent Images
1. A multi-focal electro-active spectacle comprising:
- an electro-active lens comprising a stack of at least two electro-active regions to produce a plurality of zones with different viewing corrections; and
a controller for independently activating each electro-active region to produce the plurality of zones with different viewing corrections.
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Abstract
Electro-active multi-focal spectacles are disclosed. The spectacles have a stack of at least two electro-active regions. The electro-active regions produce a plurality of viewing correction zones. The spectacles also have a controller for independently activating the electro-active regions to produce viewing correction zones. An electro-active multi-focal spectacle having a blending zone is also disclosed. The blending zone provides a transition of optical power between viewing correction zones.
234 Citations
31 Claims
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1. A multi-focal electro-active spectacle comprising:
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an electro-active lens comprising a stack of at least two electro-active regions to produce a plurality of zones with different viewing corrections; and
a controller for independently activating each electro-active region to produce the plurality of zones with different viewing corrections. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. An electro-active lens comprising:
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two stacked electro-active regions, in which a first region produces a near and near-intermediate viewing correction zone when activated and in which a second region produces a far-intermediate viewing correction zone when activated, only one electro-active region activated at any one time; and
a controller for independently activating each electro-active region to produce the plurality of zones with different viewing corrections.
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27. An electro-active lens comprising:
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three stacked electro-active regions which produce a near viewing correction zone when three electro-active regions are activated and which produce a near-intermediate viewing correction zone when two electro-active regions are activated and which produce a far-intermediate viewing correction zone when only one electro-active region is activated; and
a controller for independently activating each electro-active region to produce the plurality of zones with different viewing corrections. - View Dependent Claims (28, 29, 30, 31)
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Specification