Abstract: Systems and methods for triggering an emergency call based on sensor data indicative of the response of a number of users in a given location to a possible emergency situation are provided. In an example computer-implemented method, an indication of data captured by respective sensors associated with each of a plurality of individuals in a geographic area may be received, and an indication that each of the plurality of individuals is reacting to a possible dangerous situation in the geographic area may be determined based on the data captured by the respective sensors associated with each of the plurality of individuals. A communication connection may be established with an emergency services dispatcher to facilitate dispatching emergency services to the geographic area based on the indication that each of the plurality of individuals is reacting to the possible dangerous situation in the geographic area.

Abstract: An optical sensor arrangement (10) comprises at least two light sensors (35, 36) for providing at least two sensor signals (S1, S2), and an evaluation circuit (12) that comprises an input (16) coupled to the at least two light sensors (35, 36) and is designed to evaluate the at least two sensor signals (S1, S2) for gesture detection in an adaptive manner using previous values of the at least two sensor signals (S1, S2).

Abstract: An optical sensor arrangement (10) comprises at least two light sensors (35, 36) for providing at least two sensor signals (S1, S2), and an evaluation circuit (12) that comprises an input (16) coupled to the at least two light sensors (35, 36) and is designed to evaluate the at least two sensor signals (S1, S2) for gesture detection in an adaptive manner using previous values of the at least two sensor signals (S1, S2).

Abstract: To address the above issues, a display device with a capacitive touch screen display having a touch surface in close proximity to a display stack is provided. The display may include a touch sheet with a top surface, a touch sensor having a matrix of capacitors formed of electrodes positioned below the touch sheet and configured to exhibit a change in capacitance of at least one of the capacitors in response to a touch on the top surface by a digit or stylus of a user, a display stack positioned below the matrix of capacitors and configured to emit light through a top surface of the display stack to travel in a light emitting direction through the matrix of capacitors and the touch sheet. A distance between the top surface of the touch sheet and the top surface of the display stack is between about 225 and 1500 micrometers.

Abstract: To address the above issues, a display device with a capacitive touch screen display having a touch surface in close proximity to a display stack is provided. The display may include a touch sheet with a top surface, a touch sensor having a matrix of capacitors formed of electrodes positioned below the touch sheet and configured to exhibit a change in capacitance of at least one of the capacitors in response to a touch on the top surface by a digit or stylus of a user, a display stack positioned below the matrix of capacitors and configured to emit light through a top surface of the display stack to travel in a light emitting direction through the matrix of capacitors and the touch sheet. A distance between the top surface of the touch sheet and the top surface of the display stack is between about 225 and 1500 micrometers.

Abstract: An illumination source includes a number of light emitting diodes (LEDs) operating at a first wavelength. Light from the LEDs illuminates a phosphor material that generates light at a second wavelength. A reflective polarizer transmits light at the second wavelength in a first polarization state and reflects light at the second wavelength in a second polarization state orthogonal to the first polarization state. The light at the second wavelength reflected by the reflective polarizer is directed back towards the phosphor material without an increase in angular range. In some embodiments the LEDs, having a conformal layer of phosphor material, are attached directly to the first surface of a liquid cooled plate. A liquid coolant contacts a second surface of the plate.

Abstract: In a projection system, an illumination unit directs light to a spatial light modulator, via a prism having first, second and third sides. At least some of the illumination light from the illumination unit enters the prism through the first side, is totally internally reflected at the second side and exits the third side of the prism to the spatial light modulator. The illumination light is incident on the first side along a first axis, the first axis being directed with a component directed towards the spatial light modulator. In some cases, the first prism may introduce prism aberrations to the illumination light. The light from the illumination unit is directed tot the prism by light handling optics. The light handling optics compensate, at least in part, for the prism aberrations.

Abstract: A projection display system employs one or more color modifying aperture stops, such as apodizing aperture stops, to provide high contrast, balanced color and high throughput. One projection system includes a reflective liquid crystal-on-silicon light valve positioned with a polarizing beam splitter, such as a wire grid polarizing beam splitter, for each of the primary color component light paths to separately impart image information into each of the primary color components of light. A color combiner receives and combines the primary color components of light with imparted image information to provide light representing a polychromatic display image. At least one aperture stop is positioned along at least one of the primary color component light paths to balance relative intensities of the primary color components of light.