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 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: 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: 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.

Abstract: An apparatus for deflecting with respect to one or more axes a device mounted on the apparatus, the apparatus comprising: a mounting support; a device chassis defining a plane and a clockwise direction in the plane, wherein the device chassis comprises two or more arm bridges, wherein a first arm bridge is extending from a first side of the device chassis and a second arm bridge is extending from a second and opposite side of the device chassis. One or more arm bridges comprising a first arm extending continuously in a clockwise direction to a first standoff and a second arm extending continuously in an anti-clockwise direction to a second standoff. The apparatus comprising one or more standoff supports comprised between each standoff and the mounting support.

Abstract: The invention relates to a lens having an adjustable optical power comprising a container with a frame structure, wherein the frame structure delimits a lens volume and a reservoir volume at least partially in a lateral direction, wherein the lens volume and the reservoir volume are fluidically connected, a first opening extending through the frame structure, wherein the lens volume is arranged at least partially in the first opening, a bottom structure and an elastically deformable transparent first membrane delimit the lens volume on opposite sides of the first opening, a second opening extending through the frame structure, wherein the reservoir volume is arranged at least partially in the second opening, a further membrane portion delimits the reservoir volume on one side of the second opening, a transparent second membrane separating a first volume filled with a first liquid from a second volume filled with a second liquid, the first volume and the second volume are arranged in the lens volume, and a

Abstract: The invention relates to a near-eye display (1) comprising at least one pixel array (2), wherein the at least one pixel array (2) is planar and comprises a plurality of pixels (3) arranged in a plane, wherein each pixel (3) comprises a central emitter (60) configured to emit light in a controllable fashion, wherein the at least one pixel array (2) comprises an optical assembly (70) configured and adapted to collimate emitted light from each central emitter (60) of the pixel array (2) and to deflect the collimated light (101) from each pixel (3) such that the light emitted (100) from the central emitter (60) of each pixel (3) of the pixel array (2) propagates toward a common center portion (80) of the near-eye display (1). Furthermore, the invention relates to glasses (40) comprising a near-eye display (1) according to the invention.

Abstract: The invention relates to an optical device, comprising: a lens having an adjustable focal length. According to the invention, a light source which is configured to emit light that is affected by said lens and impinges on at least a first photosensitive element, which is designed to generate a first output signal corresponding to the intensity of light impinging on it, wherein the first photosensitive element is configured to measure only a portion of the intensity distribution of said emitted light, and wherein the light source, the lens and the first photosensitive element are configured such that a change of the focal length of said lens changes the intensity distribution of the emitted light that impinges on the first photosensitive element, so that each focal length of the lens is associated to a specific first output signal generated by the first photosensitive element.

Abstract: The invention relates to an eye training system (1) with the spectacles (10) that comprise at least the following components: A frame member (11) configured to keep the spectacles (10) on the head of a person wearing the spectacles (10), two optical assemblies (12) arranged at the frame member (11), wherein the optical assemblies (12) are arranged such at the frame member (11) that when the spectacles (10) are worn on the head of the person said optical assemblies (12) are in front of the eyes of the person, wherein each optical assembly (12) comprises a focus-tunable lens (13) with an adjustable focal length, a control circuit (22) comprising a processor, wherein the control circuit is configured to control the focal lengths of the focus-tunable lenses (13) in response to data (200) received from an external computer or provided by the processor. The invention further relates to a method and a computer program for performing eye training with the eye training system (1).

Abstract: The invention relates to an optical device for reducing speckle noise of laser light having a first optical element extending along an extension plane, and an actuator designed for moving the first optical element along the extension plane. The actuator is formed as a reluctance actuator that is designed to exert a reluctance force on the first optical element to move the first optical element along the extension plane.