Optotune Ag

Optotune Switzerland Ag

Optotune Consumer Ag

Nextlens Switzerland Ag

Stephan Smolka

David Niederer

Manuel Aschwanden

Roman Patscheider

Marcel Suter

Johannes Haase

Christopher Laning

Pit Gebbers

Daniel Borer

Markus Geissner

Mark Ventura

Michael Büeler

Chris Laning

Chauncey Gratzel

Sanggyu Biern

Erik Hebestreit

David Stadler

Alexandre Larmagnac

David Leuenberger

Andreas Brändle

Matthias Walser

Frank Bose

Anja Stobbe-Kreemers

Jochen Hotzel

Lucas Dreesen

Matthieu Verlangen

Chauncey Grätzel

Tunable lens () comprising a fluidic volume (), a flexible membrane () and a shaping element (), wherein the membrane () delimits the fluidic volume () on one side, the shaping element () is attached to the membrane (), the shaping element () surrounds an optically active region of the membrane, the shaping element () is arranged to alter optical properties of the tunable lens () by deflection, in top view the shaping element () has a non-circular contour (), wherein the contour () extends within an imaginary circumcircle (), and the amount of deflection of the shaping element () is proportional to a lateral distance of the contour () to the circumcircle ().

Tunable lens and method for operating a tunable lens

The invention relates to an optical device () for enhancing the resolution of an image or for reducing speckle noise.

Optical device for enhancing resolution of an image or for reducing speckle noise

Objective comprising a lens barrel, an actuator and a tunable lens, wherein the tunable lens comprises a primary membrane and a secondary membrane delimiting a liquid volume on opposing sides along an axial direction, the tunable lens comprises a container delimiting the liquid volume in lateral directions, wherein the lateral directions extend perpendicularly with respect to the axial direction, and the primary membrane and the secondary membrane are attached to opposing sides of the container, the tunable lens comprises a window member which is attached to the secondary membrane, wherein the secondary membrane connects the window member and the container elastically, wherein relative motion of the window member and the container along the axial direction results in a change of an optical property of the tunable lens, the window member or the container is fixedly attached to the lens barrel, the actuator is arranged to provide an actuation force along the axial direction, wherein the actuation force acts between the tunable lens and the lens barrel, and the actuation force results in a relative motion of the window member with respect to the container.

Objective

The invention relates to a lens () having an adjustable focal length, comprising: a container () enclosing an internal space () of the container (), wherein the internal space () is filled with a transparent liquid (L), and wherein the container () comprises a circumferential lateral wall () surrounding said internal space (), wherein the lateral wall () is connected to a transparent cover element () and to a transparent and elastically deformable membrane () such that the liquid (L) is arranged between the membrane () and the cover element (), an annular lens shaper () connected to the membrane () so that an inner circumferential edge () of the lens shaper () defines a central area () of the membrane () and light passing said area () is refracted depending on a curvature of said area (), and an actuator configured to move the lens shaper () towards or away from the cover element () to adjust said curvature of said area () of the lens () and therewith the focal length of the lens (), wherein for moving the lens shaper (), the actuator comprises a coil () integrated into the lateral wall (), wherein the actuator is configured to generate an electrical current in the coil () so that the coil () generates a magnetic field to move the lens shaper ().

Compact liquid lens having an adjustable focal length

The present invention relates to an optical device (), comprising: a container () enclosing an internal space () of the container (), the internal space () being filled with a transparent liquid (), wherein the container () comprises a transparent and elastically deformable membrane () delimiting said internal space () at least partially, wherein the container () further comprises a transparent rigid optical element () being connected to said membrane (), the rigid optical element () comprising an optical surface () facing the membrane (), the rigid optical element () being configured to receive light (L) for passing the light (L) through the transparent liquid () residing in the internal space () of the container (), wherein the optical device () further comprises a supporting structure () supporting the rigid optical element () so that the rigid optical element () is tiltable about at least a first tilting axis (X) extending along said optical surface () of the rigid optical element () to deflect light passing through the container (), wherein the supporting structure () is configured to prevent a translation of the rigid optical element () in a direction parallel to an optical axis (A) of the optical device.

Tunable prism with integrated tunable lens and reduced crosstalk

The invention relates to a liquid lens () with an adjustable optical power comprising at least the following components:

Liquid lens having a fixed lens shaping element and a movable transparent window

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

Tunable prism for optical image stabilization

The invention relates to a lens having an adjustable optical power comprising a container with a frame structure delimiting a lens volume and a reservoir volume, wherein the lens volume and the reservoir volume are fluidically connected and comprise a liquid, wherein both volumes have at least one opening that are laterally shifted to each other and wherein each opening is covered by two elastically deformable membrane portions, wherein in the space enclosed between the membrane portions for each opening another liquid enclosed in. The invention further teaches a piston structure that is arranged to adjust a pressure in the reservoir volume such as to control a focal strength of the lens volume.

Liquid lens with a laterally arranged pump portion

The invention relates to a tiltable mirror () for optical image stabilization in an optical imaging system (), the tiltable mirror () comprising—a rigid mirror substrate (S) with a planar reflective layer (R) on a front side of the mirror substrate (S) for reflecting incident light () in an optical imaging system (), —a mirror frame (F), wherein the mirror substrate (S) is arranged tiltably in the mirror frame (F), —an actuator () for tilting the mirror substrate (S) around a primary (x) and a secondary (y) tilt axis with respect to the mirror frame (F). The invention further relates to an optical imaging system comprising a tiltable mirror () according to the invention.

Tiltable fold mirror for an optical imaging system

The invention relates to a lens, comprising a container () defining a volume (V) which is filled with a transparent liquid (), wherein the container () comprises a transparent and elastically deformable membrane () and a rigid member (), wherein the membrane () and the rigid member () delimit said volume (V), and a lens shaping element () that contacts the membrane () and defines an area () of said membrane (), which area () has an adjustable curvature for adjusting the focal length of the lens (). According to the invention, the lens () is configured to compensate a thermal expansion of the liquid () and/or a change of the refractive index of the liquid () due to an increased temperature of the liquid () in order to reduce an unwanted thermally induced change of the focal length of the lens ().

Temperature drift compensation for liquid lenses

The invention relates to an optical device () for enhancing the resolution of an image, comprising: a transparent plate member () configured for refracting a light beam () passing through the plate member (), which light beam () projects an image comprised of rows and columns of pixels (), a carrier () to which said transparent plate member () is rigidly mounted, wherein the carrier () is configured to be tilted between a first and a second position about a first axis (A), such that the plate member () is tilted between the first and the second position about the first axis (A), whereby said projected image () is shifted by a fraction (&#x394;P) of a pixel, particularly by a half of a pixel, along a first direction (x), and an actuator means () that is configured to tilt the carrier () and therewith the plate member () between the first and the second position about the first axis (A).

Optical device for enhancing resolution of an image

The invention relates to a lens () for vision correction, wherein the lens () is particularly configured to be placed directly on the surface of an eye () of a person, wherein the lens () further comprises: a transparent base element () having a back side (), and a front side () facing away from the back side (), a transparent and elastically expandable membrane () connected to said base element (), wherein said membrane () comprises a back side () that faces said front side () of the base element (), a ring member () connected to said back side () of the membrane () so that the ring member () defines a curvature-adjustable area () of the membrane (), and wherein the lens () comprises a lens volume () adjacent said curvature-adjustable area () of the membrane (), which lens volume () is delimited by the ring member (), and wherein the lens () comprises a reservoir volume () arranged in a boundary region () of the lens (), wherein said two volumes () are each filled with a transparent liquid (), and a pumping means () configured to transfer transparent liquid () from the reservoir volume () to the lens volume () such that the curvature of said curvature-adjustable area () of the membrane () increases and the focal length of the lens () decreases, and optionally a rigid support structure () that is configured to reduce or prevent compression of the reservoir volume () when an eyelid of the user rests on said boundary region () of the lens.

Lens comprising an adjustable focus length

The invention relates to a device () for pivoting an optical element (), comprising: an optical element (), wherein the optical element is movably mounted so that the optical element can be tilted at least about a first axis (A), a magnet () extending in an extension direction (Z), wherein the magnet () comprises a magnetization (M) aligned with said extension direction (Z), and wherein the magnet () comprises a front side (), and wherein optical element () is rigidly coupled to the magnet () or to a first conductor section () that faces the front side () of the magnet () in the extension direction (Z), wherein the first conductor section () extends along the first axis (A), and a current source means () electrically connected to the first conductor section (), which current source means () is designed to apply an electrical current (I) to said first conductor section (), so that a Lorentz force is generated that tilts the optical element () about said first axis (A) along a first tilting direction (x).

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Zürich, Switzerland

Stephan Smolka