ams-OSRAM Asia Pacific Pte. Ltd.

A three-dimensional (3D) face recognition system includes a structured light sensor or stereo camera sensor. The 3D face recognition system also includes a time-of-flight sensor. The 3D face recognition system further includes a processor. The processor is configured to run algorithms for face recognition on data from the structured light sensor or stereo camera sensor. The processor is also configured to use distance data from the time-of-flight sensor to optimise the algorithms for face recognition.

A method of forming a three-dimensional image includes, first, capturing a first image of a field of view and then, subsequently, capturing range information. The method further includes forming the three-dimensional image, wherein the three-dimensional image is dependent on the first image. Capturing the first image of a field of view includes: illuminating the field of view with radiation; and determining an intensity of each of a plurality of pixels of reflected radiation from the field of view. Capturing the range information includes: illuminating the field of view with radiation; and determining a time delay of reflected radiation from the field of view for each of a plurality of pixels.

A light source arrangement, for sensitivity measurements of color and ambient light sensors, includes a light source and at least one spectral filter. The at least one filter is built to supress at least partly at least one part of spectrum of said light source in a prescribed way.

A detection device includes a first electromagnetic radiation device, configured to emit first electromagnetic radiation at a first time period, receive a reflection of the first electromagnetic radiation emitted at the first time period from a target, and modulate first electromagnetic radiation emitted at a second time period by the received reflection of the first electromagnetic radiation; a second electromagnetic radiation device, configured to emit second electromagnetic radiation at the first time period, receive a reflection of the second electromagnetic radiation emitted at the first time period from the target, and modulate second electromagnetic radiation emitted at a second time period by the received reflection of the second electromagnetic radiation; and a processor, configured to determine a rotational movement of the target based on the modulated first electromagnetic radiation, the modulated second electromagnetic radiation, and a predetermined distance between the first electromagnetic radiation device and the second electromagnetic radiation device.

A method of manufacturing a spacer ( 285 ) for spacing apart and electrically coupling first and second components of an optical device is disclosed. The method comprises a step of adhesively coupling a first substrate ( 250 ) to each of a plurality of spacer elements ( 205 ). The method comprises a step of adhesively coupling a second substrate ( 275 ) to each of the plurality of spacer elements, such that the plurality of spacer elements are disposed between opposing surfaces of the first and second substrates. At least one of the plurality of spacer elements comprises a conductive coating and/or is adhesively coupled to the first and second substrates with an electrically-conductive adhesive, such that an electrically-conductive path ( 290 a - d ) is formed for electrically coupling the first and second components of the optical device. Also disclosed is an optical device ( 500 ) comprising a spacer ( 285 ) manufactured according to the method.

An optoelectronic module includes a driver die mounted on a substrate, an optical emitter mounted to an upper surface of the driver die, a spacer mounted to the upper surface of the driver die, and an optical element mounted to an upper surface of the spacer. The spacer encloses and defines a cavity around the optical emitter. The optical element is transparent to light emitted by the optical emitter and includes an interlock feature electrically connected to the driver die.

An optoelectronic sensor for a time-of-flight (ToF) measurement includes a light projector, a light receiver, a receiver logic, and a processing unit. The light receiver includes a number of macro-pixels. The receiver logic is operable to generate light ToF data for the respective macro-pixels corresponding to a number of time windows. The processing unit selects an initial set of integration times that defines an integration time for each time window and macro-pixel and acquires an initial frame of ToF data by collecting ToF generated from the macro-pixels according to the time windows and integration times defined in the initial set of integration times. The processing unit also computes a metric from the initial frame of ToF data. The metric is indicative of a data quality generated by the respective macro-pixels.

An optical device includes an imaging system provided to generate a plurality of images being distributed over an imaging plane. It further includes a micro-lens-array, MLA, wherein micro-lenses are assigned to individual images and are provided to form channels of light beams by projecting the individual images towards a projecting plane. An optical expander is arranged between the MLA and the projecting plane and includes an input surface and least two output surfaces. The optical expander is provided to fan out and direct the channels of light beams onto the projecting plane, such that individual projections of the individual images are formed on the projection plane. An overall projection is formed on the projection plane by superimposing the individual projections.

A rotary encoder for providing a control signal in dependence upon an angular position of a controller rotatable about an axis of rotation. The rotary encoder includes a component for rotation with said controller about said axis of rotation. The rotary encoder also includes a radiation source and detector arrangement configured to direct radiation towards a target region and generate a detector signal dependent upon radiation reflected from within that target region. The rotary encoder further includes a computer processor configured to process said detector signal to determine a measure of distance or change of distance to a reflecting surface region within said target region, and to use said measure to provide said control signal. The component defines a reflecting surface that passes through said target region such that a reflecting surface region is present within said target region with a distance that varies with the angular position.

Disclosed herein is a calibration method for a depth map generating system. A projection system and imaging system thereof projects an array of dots onto a planar surface located at a first known distance, obtains a first image of the projected dots, and determines a first set of three-dimensional positions of the projected dots at the planar surface; projects an array of dots onto a planar surface located at a second known distance, obtains a second image of the projected dots, and determines a second set of three-dimensional positions of the projected dots at the planar surface. Projected dots of the first set are associated with projected dots of the second set. Convergence of the lines is used to calculate a center position. The center position is used with the projected dots and intrinsic properties to predict the spatial position of dots of light for different distances of an object.