Abstract: The present disclosure relates to an electronic display device for detecting and validating an object by optical sensing, comprising a display panel having light emitting pixels to display images, a top transparent surface formed over the display panel as an interface for being touched by a user for touch sensing operations, an optical sensor module located under the display panel or It integrated in the display panel comprising a sensor array of optical detector pixels configured for 1) receiving light reflected from the object on the surface of the display panel, and 2) generating image data according to the received light.

Abstract: The present disclosure relates to a method for fabrication of an optical sensor for use in an image recognition device, e.g. a biometric imaging device, such as a fingerprint detector, for use in under-display applications. The presently disclosed method provides a cost-efficient fabrication process, preferably employing nanoimprint lithography, for realizing an optical sensor with improved light transmittance in a compact and cost-efficient structure. In particular the presently disclosed image recognition device can be placed under a display panel of an electronic device, such as a smartphone.

Abstract: The present disclosure relates to an optical sensor for use in an image recognition device, such as a fingerprint detector. The presently disclosed optical sensor has improved light transmittance in a compact and cost-efficient structure. In particular the presently disclosed optical sensor can be placed under a display panel of an electronic device, such as a smartphone. One embodiment relates to an optical sensor system for placement under a display panel for detecting/imaging light returned from a fingerprint on top of the display panel, the optical sensor comprising a microlens structure having a front side with an array of light focusing elements and an opaque back side with an array of optically transparent apertures aligned with the focusing elements, and a sensor array of optical detectors facing the back side of the microlens structure.

Abstract: The present disclosure relates to an optical sensor for use in an image recognition device, such as a fingerprint detector. The presently disclosed optical sensor has improved light transmittance in a compact and cost-efficient structure. In particular the presently disclosed optical sensor can be placed under a display panel of an electronic device, such as a smartphone. One embodiment relates to an optical sensor system for placement under a display panel for detecting/imaging light returned from a fingerprint on top of the display panel, the optical sensor comprising a microlens structure having a front side with an array of light focusing elements and an opaque back side with an array of optically transparent apertures aligned with the focusing elements, and a sensor array of optical detectors facing the back side of the microlens structure.

Abstract: The present disclosure relates to an optical sensor for use in an image recognition device, such as a fingerprint detector. The presently disclosed optical sensor has improved light transmittance in a compact and cost-efficient structure. In particular the presently disclosed optical sensor can be placed under a display panel of an electronic device, such as a smartphone. One embodiment relates to an optical sensor system for placement under a display panel for detecting/imaging light returned from a fingerprint on top of the display panel, the optical sensor comprising a microlens structure having a front side with an array of light focusing elements and an opaque back side with an array of optically transparent apertures aligned with the focusing elements, and a sensor array of optical detectors facing the back side of the microlens structure.

Abstract: A system for measuring velocity of particles such as particles in air is a Light Detection and Ranging (LIDAR) system, having a micro-electro-mechanical-system (MEMS).

Abstract: A system for measuring velocity of particles such as particles in air is a Light Detection and Ranging (LIDAR) system, having a micro-electro-mechanical-system (MEMS).

Abstract: The present invention relates to a method and a device for detection of position of touch. The device comprises a waveguide, at least one light source, and at least one detector device. The waveguide has a touch-surface with a surface structure defining a pattern that defines active surface areas and passive surface areas. The pattern is distributed such that an object that contacts a first area will cause a different disturbance of light than an object that contacts a second area, and such that correct positions of a plurality of concurrent touches may be detected.

Abstract: Methods and devices for detecting touch, e.g. by a finger touching a touch-sensitive surface of the device, are disclosed. In particular, detection of touch can be by influencing, by touch, propagation of light within the touch-sensitive device and detecting a resulting change of light arriving to at least one detector device of the touch-sensitive device. Three paths for light can intersect (or at least substantially intersect) at a primary zone of intersection. Thus, three coordinates for a touch at the touch-surface may be provided, and a redundancy of coordinates may be provided for a touch.

Abstract: The present invention relates to a method and a device for detecting touch, e.g. by a finger touching a touch-surface of the device. In particular the invention relates to detection of touch by means of influencing, by means of the touch, propagation of light within the touch-sensitive device and detecting resulting change of light arriving to at least one detector device of the touch-sensitive device. Three paths for light intersect (or at least substantially intersect) at a primary zone of intersection. Thus, three coordinates for a touch at the touch-surface may be provided and a redundancy of coordinates may be provided for a touch.

Abstract: The present invention relates to a method and a device for detection of position of touch. The device comprises a waveguide, at least one light source, and at least one detector device. The waveguide has a touch-surface with a surface structure defining a pattern that defines active surface areas and passive surface areas. The pattern is distributed such that an object that contacts a first area will cause a different disturbance of light than an object that contacts a second area, and such that correct positions of a plurality of concurrent touches may be deduced.

Abstract: The present invention provides an input device for positioning a cursor on a computer screen by movement of a ball whose rotary movements are transformed into electronic signals, which is unique in that the angular rotations of the ball can be detected by an optical detection means by use of substantively coherent light in such a manner that the rotation of the ball is converted into data values with respect to an x-axis and a y-axis, said axes being preferably perpendicular to each other. This provides a compact detecting device which is suitable for the construction of a computer mouse with the shape of a ball-point pen.