Abstract: An approach for providing illumination with a blue UV light source, which can be used in combination with a visible light source is disclosed. In operation, the visible light source emits visible light at a first intensity. The blue UV light source emits blue UV light at a second intensity. The blue UV light stimulates fluorescence from a surface of an object illuminated by the blue UV light. A sensor can detect the intensity of the fluorescence from the surface illuminated by the blue UV light source. A control module can be operatively coupled to the visible light source, the blue UV light source, and the at least one sensor, and be configured to change the intensity of the visible light and/or the intensity of the blue UV light as a function of the fluorescent intensity detected by the sensor.

Abstract: An optoelectronic device configured for improved light extraction through a region of the device other than the substrate is described. A group III nitride semiconductor layer of a first polarity is located on the substrate and an active region can be located on the group III nitride semiconductor layer. A group III nitride semiconductor layer of a second polarity, different from the first polarity, can located adjacent to the active region. A first contact can directly contact the group III nitride semiconductor layer of the first polarity and a second contact can directly contact the group III nitride semiconductor layer of the second polarity. Each of the first and second contacts can include a plurality of openings extending entirely there through and the first and second contacts can form a photonic crystal structure. Some or all of the group III nitride semiconductor layers can be located in nanostructures.

Abstract: Systems and methods assist with managing a chronic disease of a user such as a chronic respiratory or cardiac disease. The system may include a physiological monitor adapted to be carried by the user and operative to sense a physiological parameter of the user. The system may include a management device operatively coupled with the physiological monitor to receive the sensed physiological parameter of the user. The management device, such as with an included processor, may be configured to analyze the physiological and/or environmental parameters to detect a trigger pattern of the parameters, the trigger pattern indicative of a probable event of exacerbation of the chronic respiratory and/or cardiac condition. The management device may then generate automated responses based on the trigger pattern such as by providing instructions for activities and/or treatment for the chronic condition.

Abstract: This disclosure provides devices and methods for 3-D device packaging with backside interconnections. One or more device elements can be hermetically sealed from an ambient environment, such as by vacuum lamination and bonding. One or more via connections provide electrical interconnection from a device element to a back side of a device substrate, and provide electrical interconnection from the device substrate to external circuitry on the back side of the device. The external circuitry can include a printed circuit board or flex circuit. In some implementations, an electrically conductive pad is provided on the back side, which is electrically connected to at least one of the via connections. In some implementations, the one or more via connections are electrically connected to one or more electrical components or interconnections, such as a TFT or a routing line.

Abstract: A LIDAR apparatus can include a polygon deflector that includes a plurality of facets. The LIDAR apparatus can include a motor rotatably coupled to the polygon deflector. The motor is configured to rotate the polygon deflector about a first axis orthogonal to a first plane. The LIDAR apparatus can include an optic positioned within an interior of the polygon deflector. The optic collimates a first beam to be incident on a particular facet of the plurality of facet. The particular facet of the plurality of facets refracts the first beam in the first plane between a first angle and a second angle as the polygon deflector rotates about the first axis to output a second beam.

Abstract: A system and method for scanning of coherent LIDAR. The system includes a motor, a laser source configured to generate an optical beam, and a deflector. A first facet of the plurality of facets has a facet normal direction. The deflector is coupled to the motor and is configured to rotate about a rotation axis to deflect the optical beam from the laser source. The laser source is configured to direct the optical beam such that the optical beam is incident on the deflector at a first incident angle in a first plane, wherein the first plane includes the rotation axis, wherein the first incident angle is spaced apart from the facet normal direction for the first facet. A second facet of the plurality of facets includes an optical element configured to deflect the optical beam at the first incident angle into a deflected angle.

Abstract: A wearable device for determining balance of a user is provided, comprising a gyroscope, an inertial measurement device, a memory storing instructions, and a processor configured to execute the instructions to perform operations, comprising receiving angular velocity measurements over a period of time from the gyroscope, receiving deviations from the second axis over the period of time from the inertial measurement device, weighting the deviations from the second axis based on directions associated with the deviations, receiving deviations from the third axis over the period of time from the inertial measurement device, weighting the deviations from the third axis based on directions associated with the deviations, and based on the angular velocity measurements, the weighted deviations from the second axis, and the weighted deviations from the third axis, determining an index associated with a left side of the user and an index associated with a right side of the user.

Abstract: Image sensor modules include primary high-resolution imagers and secondary imagers. For example, an image sensor module may include a semiconductor chip including photosensitive regions defining, respectively, a primary camera and a secondary camera. The image sensor module may include an optical assembly that does not substantially obstruct the field-of-view of the secondary camera. Some modules include multiple secondary cameras that have a field-of-view at least as large as the field-of-view of the primary camera. Various features are described to facilitate acquisition of signals that can be used to calculate depth information.

Abstract: A distance acquisition method comprising: initializing an optical ranging system, the optical ranging system including a plurality of pixels operable to covert incident light to electrical charges; collecting electrical charges with the plurality of exposed pixels over an integration time, each pixel collecting electrical charges with an amplification and a sensitivity; correlating the electrical charges collected in each pixel to an exposure value for each pixel, the exposure value corresponding to being adequately exposed, over-exposed, or under-exposed; identifying each exposure value for each pixel as being either valid or invalid, wherein a valid exposure value corresponds to an adequately exposed pixel and an invalid exposure value corresponds to an over-exposed or under-exposed pixel; totalling the number of valid exposure value pixels; totalling the number invalid exposure value pixels; determining an exposure ratio, the ratio being the number of pixels with valid exposure values divided by the number

Abstract: Fabrication of a heterostructure, such as a group III nitride heterostructure, for use in an optoelectronic device is described. The heterostructure can be epitaxially grown on a sacrificial layer, which is located on a substrate structure. The sacrificial layer can be at least partially decomposed using a laser. The substrate structure can be completely removed from the heterostructure or remain attached thereto. One or more additional solutions for detaching the substrate structure from the heterostructure can be utilized. The heterostructure can undergo additional processing to form the optoelectronic device.

Abstract: An illumination module for generating a patterned illumination with minimal ambiguity includes an array of light sources having different respective near-field intensity profiles. The illumination module also includes an optical assembly. The optical assembly and the array of light sources can be operable to substantially replicate the different respective near-field intensity profiles of the light sources in the far-field thereby generating a patterned illumination. The patterned illumination can exhibit reduced ambiguity in some instances.

Abstract: Systems and methods of use for a radial combiner. The radial combiner is made of a radial cavity defined by a top plate, a bottom plate, an outside wall connecting the top plate and the bottom plate, and an interior of the radial waveguide cavity located between the top plate, the bottom plate, and the outside wall with a substantially uniform height throughout. Inside the radial cavity are multiple monopole radiators, while outside the radial cavity multiple coaxial ports are mounted on one of the top plate or the bottom plate. Each of the coaxial ports are electrically connected to a corresponding monopole radiator inside the cavity. The radial combiner also contains a center conductor which is located in the center of the radial cavity, and transitions to a coaxial waveguide which is exterior to the cavity.

Abstract: An electronic shelf display tag apparatus includes a programmable processor having a memory in communication with each of a display screen, and a wireless communication transceiver. The electronic shelf display tag apparatus further includes a power supply device configured to supply power to the processor, the display screen, the wireless communication transceiver, and an enclosure configured to encapsulate the processor, the display screen, the wireless communication transceiver, the audio playback device and the power supply device. The enclosure further including an electrical connector having at least one conductor in communication with the power supply device, at least one inclined stop configured to engage an interior edge of a channel of a shelf support track, and a support rib configured to engage an exterior edge of the channel of the shelf support track.

Abstract: An illuminator comprising more than one set of ultraviolet radiation sources. A first set of ultraviolet radiation sources operate in a wavelength range of approximately 270 nanometers to approximately 290 nanometers. A second set of ultraviolet radiation sources operate in a wavelength range of approximately 380 nanometers to approximately 420 nanometers. The illuminator can also include a set of sensors for acquiring data regarding at least one object to be irradiated by the first and the second set of ultraviolet radiation sources. A control system configured to control and adjust a set of radiation settings for the first and the second set of ultraviolet radiation sources based on the data acquired by the set of sensors.

Abstract: This disclosure relates to illumination modules operable to increase the area over which an illumination source, such as a vertical-cavity surface-emitting laser or light-emitting diode, illuminates. Such illumination modules include a substrate having electrical contacts, an illumination source electrically connected to the substrate, a collimation assembly operable to collimate the light generated from the illumination source, a translation assembly operable to translate light over an area, and a mask assembly. In various implementations the illumination source may be rather small in area, thereby reducing the cost of the illumination module. Some implementations of the illumination module can be used for the acquisition of three-dimensional data in some cases, while in other cases some implementations of the illumination module can be used for other applications requiring projected light.

Abstract: This disclosure describes illumination assemblies operable to generate a patterned illumination that maintain high contrast over a wide temperature range. An implementation of the illumination assembly can include an array of monochromatic light sources positioned on an illumination plane, first and second optical elements, and an exit aperture. A chief ray of each light source within the array of monochromatic light sources can substantially converge at an exit aperture. In such implementations light generated by the array of monochromatic light sources can be used efficiently.

Abstract: An optical fiber-mounted field sensor for measuring an electric or magnetic field includes an optical fiber configured to receive light from a laser source, a polarizer, a polarization manipulator, electro-optical material or magneto-optical material adjacent to the polarization manipulator, and a high reflection coating. The polarizer is adjacent to an output of the fiber, while the polarization manipulator is adjacent to the polarizer and opposite of the optical fiber. The electro-optical material or magneto-optical material is adjacent to the polarization manipulator, and the high reflection coating is adjacent to the electro-optical material or magneto-optical material. An optical mainframe for sending and receiving optical beams to and from the optical fiber-mounted field sensor is also described.

Abstract: Color changeable materials can be incorporated into adhesive materials while maintaining the efficacy and stability of the indicator. The indicators provide simple, reliable, and cost effective detection means for detecting ammonia and carbon dioxide, and may find use in applications such as food packaging and medical applications.

Abstract: A method of image enhancement includes constructing an input histogram corresponding to an input image received at a focal plane array. The method includes performing histogram equalization on a first band of the input histogram starting from a zero value and ending at a division value representing a pixel bin value where a predetermined fraction of the input histogram by pixel hound is reached to produce a first portion of an equalization curve. The method includes performing histogram equalization on a second band of the input histogram starting from the division value and ending at a pixel bin value where all of the input histogram by pixel count is reached to produce a second portion of the equalization curve. The method includes applying the equalization curve to the input image to produce a corresponding enhanced image.

Abstract: One aspect relates to a method for producing a sensor, in particular a temperature sensor, with at least one electrically conductive layer and at least one additional layer, in particular a passivation layer and/or an insulation layer. According to one aspect, the electrically conductive layer and/or the additional layer, in particular the passivation layer and/or the insulation layer, are produced by aerosol deposition (aerosol deposition method, ADM).