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US 2014/0368786 A1Published application
Adjustable focus spectacles
AssigneeZoom Focus Eyewear LLC Dba Superfocus LLC
InventorStephen Kurtin
Life of this patent
Estimating the term…
Abstract
Adjustable focus eyeglasses where the range of adjustment can be moved. That is, if a pair of adjustable focus eyeglasses have a range of 0 diopters to 2.75 diopters (to provide a 2.75 D ADD for reading for an emmetrope), this invention could, for example, permit the user to move the range from 0 D to 2.75 D to 2.00 D to 4.75 D so as to accommodate a short term change in the user's distance vision requirement. Each eye can be adjusted independently.
Claims17
Variable focus spectacles comprising first and second lens units, each lens unit comprising:
- a transparent member;
- a membrane support structure, having an opening therein, being disposed adjacent to and within a field of view of the transparent member, the membrane support structure being manually movable by a wearer of the variable focus spectacles with respect to the transparent member at one location around a periphery of the membrane support structure, while at another location around the periphery of the membrane support structure, a distance between the membrane support structure and the transparent member is maintained substantially constant;
- a transparent membrane attached to the membrane support structure across the opening;
- a flexible seal extending between the transparent member and the membrane support structure, the flexible seal permitting motion between the transparent member and the membrane support structure;
- and
- liquid having a predetermined index of refraction substantially filling a space between the transparent member and the membrane support structure within the seal,
- wherein the membrane support structures of the first and second lens units are independently moveable by the wearer with respect to the corresponding transparent members.
4 more elements
Variable focus spectacles comprising first and second lens units, each lens unit comprising:
- a transparent member;
- a membrane support structure, having an opening therein, being disposed adjacent to and within a field of view of the transparent member;
- a transparent membrane attached to the membrane support structure across the opening;
- a flexible seal extending between the transparent member and the membrane support structure, the flexible seal permitting motion between the transparent member and the membrane support structure;
- liquid having a predetermined index of refraction substantially filling a space between the transparent member and the membrane support structure within the seal;
- and
- an adjustable element allowing adjustment of a distance between the transparent member and the membrane support structure at one location around a periphery of the membrane support structure while, at another location along the periphery of the membrane support structure, a distance between the transparent member and the membrane support structure is kept unchanged,
- wherein the adjustable elements of the first and second lens units are manually adjustable independently of each other.
5 more elements
Variable focus spectacles comprising first and second lens units, each lens unit comprising:
- a transparent member;
- a membrane support structure, having an opening therein, being disposed adjacent to and within a field of view of the transparent member;
- a transparent membrane attached to the membrane support structure across the opening;
- a flexible seal extending between the transparent member and the membrane support structure, the flexible seal permitting motion between the transparent member and the membrane support structure;
- liquid having a predetermined index of refraction substantially filling a space between the transparent members and the membrane support structure within the seal;
- and
- an adjustable mechanism having a first part that is coupled directly or indirectly to the membrane support structure and a second part that is in moveable contact with the first part, wherein a movement of the second part relative to the first part changes a distance between the transparent member and the membrane support structure at one location around a periphery of the membrane support structure while, at another location along the periphery of the membrane support structure, a distance between the transparent member and the membrane support structure is kept unchanged,
- wherein the second parts of the adjustable mechanisms of the first and second lens units are manually adjustable independently of each other.
5 more elements
Variable focus spectacles comprising first and second lens units, each lens unit comprising:
- a transparent member;
- a membrane support structure, having an opening therein, being disposed adjacent to and within the field of view of the transparent member;
- a transparent membrane attached to the membrane support structure across the opening;
- a flexible seal extending between the transparent member and the membrane support structure, the flexible seal permitting motion between the transparent member and the membrane support structure;
- liquid having a predetermined index of refraction substantially filling a space between the transparent members and the membrane support structure within the seal;
- and
- a controllable spacing member coupled directly or indirectly to each of the transparent member and the membrane support structure, the controllable spacing member being operative to control a distance between the transparent member and the membrane support structure at one location along a periphery of the transparent member and the membrane support structure, while a distance between the transparent member and the membrane support structure at another location along the periphery of the transparent member and the membrane support structure is kept constant,
- wherein the controllable spacing members of the first and second lens units are manually adjustable independently of each other.
5 more elements
Dependencies are inferred from the claim text.