Electro-active multi-focal spectacle lens
AssigneeE-Vision, LLC
InventorsRonald D. Blum, William Kokonaski, Dwight P. Duston
Life of this patent
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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.
Claims31
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.
An electro-active lens comprising:
- 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.
An electro-active lens comprising:
- 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.
Dependencies are inferred from the claim text.