Title:
LENS COMPRISING AN ADJUSTABLE FOCAL LENGTH
Document Type and Number:
WIPO Patent Application WO/2019/122435
Kind Code:
A3
Abstract:
The invention relates to a lens (1) for vision correction, particularly in form of a contact lens, for vision correction, wherein the lens (1) comprises: a transparent base element (10) having a back side (12), and a front side (11) facing away from the back side (12), a transparent and elastically expandable membrane (20) connected to said base element (10), wherein said membrane (20) comprises a back side (22) that faces said front side (11) of the base element (10), a lens shaping member (particularly (30) connected to said the membrane (20)) so that the lens shaping member (30) defines an area (23) of the membrane (20) having an adjustable curvature, and wherein the lens (1) comprises a lens volume (41) adjacent said area (23), and wherein the lens (1) comprises a reservoir volume (42) arranged in a peripheral region (24) of the lens (1), wherein a transparent liquid (50) is arranged in the lens volume and in the reservoir volume, and at least one electro-osmotic pump (70) configured to transfer transparent liquid (50) from the reservoir volume (42) to the lens volume (41) or vice versa such that the curvature of said area (23) of the membrane (20) changes and therewith the focal length of the lens (1).
Inventors:
LARMAGNAC ALEXANDRE (CH)
ALBUSCHIES JOERG (CH)
STOBBE-KREEMERS ANJA (CH)
ASCHWANDEN MANUEL (CH)
ALBUSCHIES JOERG (CH)
STOBBE-KREEMERS ANJA (CH)
ASCHWANDEN MANUEL (CH)
Application Number:
PCT/EP2018/086804
Publication Date:
August 01, 2019
Filing Date:
December 21, 2018
Export Citation:
Assignee:
OPTOTUNE AG (CH)
International Classes:
G02C7/08; G02C7/04
Domestic Patent References:
| WO2017060537A2 | 2017-04-13 | |||
| WO2016173620A1 | 2016-11-03 |
Foreign References:
| US20140002790A1 | 2014-01-02 |
Attorney, Agent or Firm:
SCHULZ, Ben Jesko (DE)
Download PDF: