公开(公告)号：US20230358924A1

公开(公告)日：2023-11-09

申请号：US18305410

申请日：2023-04-24

Applicant: Nextlens Switzerland AG

Inventor： Manuel ASCHWANDEN

IPC: G02B3/14 ,  G02B15/14 ,  G02B7/10 ,  G02B15/20 ,  H04N23/55

CPC classification number: G02B3/14 ,  G02B15/142 ,  G02B7/10 ,  G02B15/20 ,  H04N23/55 ,  G03B2205/0069 ,  G03B2205/0076

Abstract: The invention relates to an optical zoom device (1) Optical zoom device (1), comprising a first lens assembly (2), and a second lens assembly (3) following the first lens assembly (2) in the direction of an optical axis (A) of the optical zoom device (1) so that light (L) can pass through the first lens assembly (2) and thereafter through the second lens assembly when travelling along the optical axis (A), wherein said lens assemblies each comprise a focus-adjustable lens (31, 32) as well as an electropermanent magnet (107, 207) or a shape memory alloy (120, 220) for actuating the respective lens (31, 32).

公开(公告)号：US20240111173A1

公开(公告)日：2024-04-04

申请号：US18495230

申请日：2023-10-26

Applicant: Nextlens Switzerland AG

Inventor： Mark VENTURA ,  David LEUENBERGER ,  Michael BÜELER ,  Manuel ASCHWANDEN ,  Stephan SMOLKA ,  Frank BOSE ,  David NIEDERER

IPC: G02B27/64 ,  G02B5/06 ,  G02B26/00

CPC classification number: G02B27/646 ,  G02B5/06 ,  G02B26/004

Abstract: The invention relates Tunable prism (1) for optical image stabilization, comprising the components: A container (2) that comprises a membrane (6) comprising at least a transparent portion, the container (2) further comprising a transparent rigid bottom portion (5) facing the membrane (6), wherein the membrane (6) is connected to the bottom portion (5), and wherein the container (2) encloses a volume (7) that is filled with a transparent fluid (3); A transparent window (8) arranged on the membrane (6), wherein the membrane (6) comprises a deformable portion (6a) extending around an outer edge (8a) of the window (8), such that the window (8) can be tilted around a first and/or a second axis (201, 202) with respect to the bottom portion (5). The invention further relates to an imaging system (50) comprising the tunable prism (1).

公开(公告)号：US20230185078A1

公开(公告)日：2023-06-15

申请号：US18167856

申请日：2023-02-12

Applicant: Nextlens Switzerland AG

Inventor： Manuel ASCHWANDEN ,  Michael BUEELER ,  David NIEDERER ,  Chris LANING ,  Roman PATSCHEIDER

IPC: G02B26/00 ,  G02B3/14 ,  G02B7/09 ,  G02B27/64 ,  G03B5/00 ,  G03B13/36

CPC classification number: G02B26/004 ,  G02B3/14 ,  G02B7/09 ,  G02B27/646 ,  G03B5/00 ,  G03B13/36 ,  G02B1/11

Abstract: The present invention relates to an optical device (1), comprising: a container (2) forming a fluidic lens, the container (2) comprising a transparent and elastically expandable membrane (10), a transparent optical element (20) facing the membrane (10), and a wall member (3), wherein the optical element (20) and the membrane (10) are connected to the wall member, and wherein said container encloses a volume (V) that is filled with a fluid (F), a lens shaping part (11) that is in contact with said membrane (10) for defining a curvature adjustable area (10c) of the membrane (10), which area (10c) faces said optical element (20), and a circumferential lens barrel (50) extending in an axial direction, which lens barrel (50) surrounds an opening (50c) in which at least one rigid lens (51) is arranged that is held by the lens barrel (50), and a voice coil motor (5) that is designed to move the lens shaping part (11) along an axial direction (z) with respect to said container (2), so as to adjust a curvature of said area (10c) and therewith a focal length of the fluidic lens, wherein the voice coil motor (5) comprises at least one coil (30, 31) arranged on a movable part (6) and a plurality of magnetic structures (40, 41) arranged on a motor holder (7), wherein said movable part (6) is movably mounted to the motor holder (7) via a spring structure (8) so that it can be moved along said axial direction (z), and wherein the lens shaping part (11) is mounted to said movable part (6).