Abstract: The invention relates to an optical device (1), comprising: at least a first lens (100) having an adjustable focal length, wherein the first lens (100) comprises a container (2) comprising at least one reservoir volume (90) and a lens volume (91) which are in flow communication via a channel (92) and filled with a transparent fluid (F), and wherein the container (2) comprises a stretchable transparent membrane (21) and a transparent lens shaper (22) that is immersed in the fluid (F) and connected to the membrane (21), so that the lens shaper (22) defines a curvature-adjustable area (23) of the membrane (21), and wherein the container (2) comprises a transparent back wall (30) facing the membrane (21), wherein the fluid (F) is arranged between the membrane (20) and the back wall (30). According to the present invention, the at least one reservoir volume (90) is covered by a wall (21), wherein a plunger (94) for interacting with an actuator part (e.g.

Abstract: The present invention relates to a method for determining at least one optical property of a visual aid (e.g. eyeglasses) for a person, the method comprising the steps of: Observation of a test pattern (T) by the person through an tunable lens (20, 21) of a virtual reality (VR) and/or augmented reality (AR) headset (2) worn by the person, the tunable lens (20, 21) being positioned in front of an eye of the person, and adjusting at least one optical property of the tunable lens (20, 21) so that the person perceives the test pattern (T) as being sharp, or adjusting at least one optical property of the tunable lens (20, 21) until a sensor device (30, 31) detects accommodation of the eye of the person to the test pattern (T).

Abstract: Focus system (1) comprising an imaging objective (10) with an optical element (100), two emitters (20) for emitting a beam (200) respectively, wherein the imaging objective (10) is arranged to depict an object (3) located in an object plane (30) in an image plane (31), the optical element is arranged to adjust a distance (300) from the object plane (30) to the imaging objective (10), the beams (200) are transmitted through or reflected by the optical element (20), and the beams (200) intersect at the object plane (30).

Abstract: The invention relates to a tiltable mirror device (1) comprising the components: a tiltable portion (2) comprising a substrate (2.1) having a reflective layer (2.2) for reflecting electromagnetic waves, a fixed portion (3) relative to which the tiltable portion (2) is movable, a bearing assembly (4) mechanically connecting the fixed portion (3) and the tiltable portion (2), wherein the bearing assembly (4) is arranged to render the tiltable portion (2) tiltable around at least one axis of rotation (100) with respect to the fixed portion (3), an actuator assembly, wherein the actuator assembly comprises two components, namely a coil portion (6) comprising one or more coils (6.1, 6.2) each comprising an electric conductor (6.

Abstract: The invention relates to an optical device (1), comprising: at least a first lens 100) having an adjustable focal length, wherein the first lens (100) comprises a container (2) that defines a volume (V) which is filled with a transparent fluid (F), and wherein the container (2) comprises a front wall (20), which front wall (20) comprises a transparent membrane (21) that is flexible and stretchable and a transparent lens shaper (22) that is immersed in the fluid (F) and connected to the membrane (21), so that the lens shaper (22) defines a curvature-adjustable area (23) of the membrane (21), and wherein the container (2) comprises a back wall (30) facing the front wall (20), wherein the fluid (F) is arranged between the front wall (20) and the back wall (30), and wherein the back wall (30) forms a lens.

Abstract: The present invention relates to an optical tuneable device comprising a volume and a polydimethylsiloxane (PDMS) membrane, wherein the membrane delimits the volume at least partially and the volume is filled with a silicone-based polymer of formula 1, with R1 being an alkyl moiety, —(CH2)-phenyl, phenyl, CF3 or alkyl-CN moiety, R2 to R8 being —H, an alkyl, (CH2)-phenyl or phenyl moiety. The polymer may optionally be substituted by —F. Furthermore, the present invention relates to the use of said polymer in an optical tuneable device.

Abstract: Tunable optical device comprising an optical element, an actuator and a transmission unit, wherein the transmission unit comprises a first fiber, the first fiber is arranged to transmit a tensile force from the actuator to the optical element, and the tensile force result in a change of an optical property of the optical element.

Abstract: The present invention relates to a device for carrying an optical element, the device comprising: a pivotable first carrier for carrying the optical element, the first carrier being mounted by means of a first bearing so that the first carrier is pivotable about a first axis, wherein the first bearing comprises an elastic structure and a support configured to support the first carrier, wherein the support is configured to limit a translation of the first carrier in at least a first direction.

Abstract: An optical device for machine vision, particularly for automatically extracting information from images of an object, comprising: a first optical path, which is arranged to image a first object plane, a second optical path, which is arranged to image a second object plane, an image sensor which is arranged to capture the image of the first and/or second object plane, wherein the first object plane extends obliquely with respect to the second object plane, the first optical path and the second optical path extend through a first liquid lens with an optical axis, wherein the optical axis extends vertically.

Abstract: Tunable lens (1) comprising a fluidic volume (2), a flexible membrane (3) and a shaping element (4), wherein the membrane (3) delimits the fluidic volume (2) on one side, the shaping element (4) is attached to the membrane (3), the shaping element (4) surrounds an optically active region of the membrane, the shaping element (4) is arranged to alter optical properties of the tunable lens (1) by deflection, in top view the shaping element (4) has a non-circular contour (40), wherein the contour (40) extends within an imaginary circumcircle (10), and the amount of deflection of the shaping element (4) is proportional to a lateral distance of the contour (40) to the circumcircle (10).

Abstract: Optical device (1) comprising a carrier (4), an optical element (2) and a radiation sink (3), wherein the optical element (2) is mounted on the carrier (4), the optical element (2) is movably attached to the carrier (4), the carrier (4) has a recess (7), wherein the optical device (1) is arranged to interact with electromagnetic radiation (9), dividing the electromagnetic radiation (9) in a first portion (91) and a second portion (92), the optical element is arranged to deflect the first portion in a definable direction, and the second portion (92) is incident into the recess (7) and impinges onto the radiation sink (3).

Abstract: An optical device (1), comprising: a first refractive element (10) configured to refract incoming light (L), wherein the first refractive element (10) comprises a first refractive index (n1(T)) and a first surface S1(T) for receiving a wavefront (W) of said incoming light, a second refractive element (11) configured to refract light coming from the first refractive element (10), wherein the second refractive element (11) is arranged adjacent the first refractive element (10) such that a second surface (S2(T)) is formed between the first refractive element (10) and the second refractive element (11), via which second surface (S2(T)) light can pass from the first refractive element (10) to the second refractive element (11), and wherein the second refractive element (11) comprises a second refractive index (n2(T)) and a third surface (S3(T)) for transmitting light coming from the first refractive element (10) and passing through the second refractive element (11), and wherein the refractive indices (n1(T), n2(T

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

Abstract: The invention relates to a tiltable mirror (1) for optical image stabilization in an optical imaging system (100), the tiltable mirror (1) comprising—a rigid mirror substrate (1S) with a planar reflective layer (1R) on a front side of the mirror substrate (1S) for reflecting incident light (500) in an optical imaging system (100),—a mirror frame (1F), wherein the mirror substrate (1S) is arranged tiltably in the mirror frame (1F),—an actuator (2) for tilting the mirror substrate (1S) around a primary (x) and a secondary (y) tilt axis with respect to the mirror frame (1F). The invention further relates to an optical imaging system comprising a tiltable mirror (1) according to the invention.

Abstract: Described herein is an optical device comprising an optical element, which is mounted on a carrier by means of a platform, in which the platform comprises a base and an elastic structure, wherein the base is connected to the optical element, the elastic structure connects the base and the carrier, the platform extends along an x-y plane defined by an x-direction and a y-direction, an actuator is arranged to apply a force to the base in a direction along the x-y-plane, the elastic structure is elastic in the x-direction and in the y-direction, and the base and the elastic structure are fabricated in a one-piece manner

Abstract: The invention relates to a lens (1) having an adjustable focal length, 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 circumferential lateral wall (20) surrounding said internal space (3), wherein the lateral wall (20) is connected to a transparent cover element (21) and to a transparent and elastically deformable membrane (22) such that the liquid (L) is arranged between the membrane (22) and the cover element (21), an annular lens shaper (4) connected to the membrane (22) so that an inner circumferential edge (40) of the lens shaper (4) defines a central area (23) of the membrane (22) and light passing said area (23) is refracted depending on a curvature of said area (23), and an actuator configured to move the lens shaper (4) towards or away from the cover element (21) to adjust said curvature of said area (23) of the lens (1) and therewith the focal length of

Abstract: The invention relates to a lens, comprising a container (100) defining a volume (V) which is filled with a transparent liquid (2), wherein the container (10) comprises a transparent and elastically deformable membrane (20) and a rigid member (30), wherein the membrane (20) and the rigid member (30) delimit said volume (V), and a lens shaping element (200) that contacts the membrane (20) and defines an area (21) of said membrane (20), which area (21) has an adjustable curvature for adjusting the focal length of the lens (1). According to the invention, the lens (1) is configured to compensate a thermal expansion of the liquid (2) and/or a change of the refractive index of the liquid (2) due to an increased temperature of the liquid (2) in order to reduce an unwanted thermally induced change of the focal length of the lens (1).

Abstract: Described herein is a display unit (1) comprising a pixel-matrix (11) with multiple pixels (110) and at least one refractive optical element (12) having a refractive power, wherein the pixels (110) are arranged to emit light having a definable color and intensity, the light emitted by the pixel-matrix (11) passes through the refractive optical element (12), and the refractive power is tunable.

Abstract: The present invention relates to a camera comprising a sensor element, and an aperture, wherein the aperture comprises an opaque element having a plurality of through holes, a plurality of tunable lenses and an illumination device, wherein tunable lenses are assigned to the through holes respectively, and the illumination device is arranged on a side of the aperture, facing away from the sensor element.

Abstract: The corrective lens described herein comprises a carrier, a tuning element and an actuator. The corrective lens may be a contact lens which is arranged to be placed directly on the surface of the eyes. The corrective lens may be an intraocular lens, which is arranged to be implanted in the eye for example as part of a treatment for cataracts or myopia.