Patent ID: 8708487
Filing Date: 2014-04-29
Classification: G02B,G02C

Abstract:
1. Variable Focus Spectacles comprising: first and second transparent members; first and second membrane support structures, each having an opening therein, the first and second membrane support structures being respectively associated with and mounted adjacent to and within the field of view of the first and second transparent members; first and second adjustable connectors respectively connecting the first and second transparent members to the first and second membrane support structures, each of the first and second adjustable connectors allowing adjustment of a distance between its respective transparent member and its associated membrane support structure at a location of said connector while, at another location along a perimeter of the transparent member spaced apart from the location of the connector, a distance between the respective transparent member and its associated membrane support structure is kept unchanged, the first and second adjustable connectors being manually adjustable independently of each other; a transparent membrane attached to each of said first and second membrane support structures across said openings; a flexible seal extending between each one of said first and second transparent members and its associated membrane support structure, said flexible seal permitting motion between one of the first and second transparent members and its associated membrane support structure; and liquid having a predetermined index of refraction substantially filling spaces between each of said first and second transparent members and its associated membrane support structure within its respective seal.