Tunable lens device
US10690815B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2017 |
| Grant date | Jun 23, 2020 |
| Priority date | — |
| Expiry date | Nov 22, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/646
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention relates to a lens device (1), comprising: a transparent and elastically expandable membrane (10), an optical element (20) opposing the membrane (10), a wall member (300), wherein the optical element (10) and the membrane (10) are connected to the wall member (300) such that a volume (V) is formed, a fluid (F) residing in said volume (V), and a lens shaping member (11) attached to the membrane (10). According to the invention the lens device (1) comprises an actuator means (40) that is designed to move the optical element (20) in an axial direction (A) with respect to the lens shaping member (11) so as to adjust the pressure of the fluid (F) residing inside the volume (V) and therewith a curvature of said membrane (10), wherein said axial direction (A) is oriented perpendicular to a plane spanned by the lens shaping member (11), and wherein said actuator means (40) is designed to tilt the optical element (20) with respect to said plane, particularly so as to form the volume into a prism for deflecting light passing the volume. Further, the invention relates to a method for adjusting a lens device (1) and for image stabilization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.