Shape changing optical device for ophthalmic testing devices
US12259599B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Dec 16, 2019 |
| Grant date | Mar 25, 2025 |
| Priority date | — |
| Expiry date | Aug 28, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/1035
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention relates to An optical device (1), particularly for an ophthalmic device, comprising: a container (2) enclosing an internal space (3) of the container (2), wherein the internal space (3) is filled with a transparent liquid (L), and wherein the container (2) comprises a transparent bottom (21) and a transparent and elastically deformable membrane (22) opposing said bottom (21) such that the liquid (L) is arranged between the membrane (22) and the bottom (21), a deformable annular lens shaping element (4) connected to the membrane (22) so that a circumferential edge (41) of the lens shaping element (4) defines a central area (23) of the membrane (22) so that light can pass through the container (2) via the central area (23) and the bottom (21), wherein in a non-deformed state said edge (41) lies in a plane, and an adjustable spherical power and an adjustable cylindrical power, wherein for adapting the cylindrical power of the optical device (1), the lens shaping element (4) is configured to be bent out of said plane (P).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.