Abstract:
Systems and methods are provided for depositing solder in a first pattern over a first bonding pad on the substrate; depositing solder in a second pattern over a second bonding pad on the substrate, wherein the second pattern defines a larger area than the first pattern; placing the electronic device on the substrate such that pads on the electronic device are aligned with the first and second bonding pads; and reflowing the solder between the pads on the electronic device and the first and second bonding pads, causing the solder deposited on the first bonding pad to form a first solder joint and the solder deposited on the second bonding pad to form a second solder joint. The second solder joint is larger than the first solder joint causing the electronic device to be attached at an angle relative to the substrate.
Abstract:
This detector is intended to detect at least one photon and comprises a dielectric substrate (30), of index nO; a detecting element (32) forming a serpentine, placed on the substrate and generating a signal using the energy of the photon(s); a dielectric grating, formed of lines of index nH, alternating with lines of index nB, avec nH>nO and nH>nB, the grating being placed above the detecting element, the set grating-element presenting a resonant absorption in a given incidence and for a given polarisation; and a superstratum (40) having a refractive index ni, this superstratum being placed above the one-dimensional dielectric grating, nH being furthermore greater than ni.
Abstract:
A wavelength-conversion system includes a wavelength-conversion target that radiates an energy output when an energy input of a different wavelength is incident upon the wavelength-conversion target. An input structure directs the energy input of the input-energy wavelength to be incident upon the wavelength-conversion target. A target baseline temperature modifier either controllably heats or controllably cools the wavelength-conversion target independently of any heating or cooling effect of the energy input or the energy output. A detector is positioned so that the energy output of the output-energy wavelength emitted from the wavelength-conversion target is incident upon the detector.
Abstract:
A method for detecting and measuring physical perturbations sensed by a multi-mode waveguide, through which a number of modes of a coherent electromagnetic wave propagates through and exit from. The method comprises irradiating the exiting electromagnetic wave on one or more two-dimensional sensing arrays comprising a plurality of sensing elements that are sensitive to the irradiated electromagnetic wave; determining, simultaneously, in a parallel manner, absolute values of sensed changes across different zones of the two-dimensional sensing arrays, each zone comprising one or more sensing elements; and summing the absolute values of different groups of different zones to obtain a representation of the perturbations.
Abstract:
Apparatus and method for directing a laser beam at an object. Some embodiments include generating direction-control information, based on the direction-control information, directing laser energy into a first fiber at a first end of a first fiber bundle during a first time period, forming an output beam of the laser energy from the second end of the first fiber bundle, and steering the output beam of the laser energy from the first fiber in a first selected direction of a plurality of directions during the first time period, and optionally modulating an intensity of the laser energy according to a predetermined pattern. The direction-control information is based on sensing electromagnetic radiation from a scene. Some embodiments use a remote camera wire-connected to the image processor to obtain scene information, while other embodiments use a second fiber bundle to convey image information from an external remote lens to a local camera.
Abstract:
A direct-light-type backlight module uses optical feedback to control point light sources for obtaining a default luminance. Each point light source drives a section in a cyclic time domain to em it a light. A photo detector detects a brightness and the brightness is thus control led by the optical feedback from the photo detector.
Abstract:
A threat launch detection system includes at least one temporal threat detector, each temporal threat detector including a single sensing element operable to sense radiation from various types of short-burn threats that occur within a field of view of the detector. The single sensing element generates a detection signal in response to the sensed radiation. A processing circuit is coupled to each temporal threat detector and is operable to analyze the detection signal from each detector as a function of time to detect the occurrence of a short-burn threat within the field of view of any of the temporal threat detectors. Each temporal threat detector may be a prism-coupled compound parabolic concentrator (PCCP).
Abstract:
Light-sensor devices are disclosed for use with a color display such as a CRT, LCD, plasma display, or other type of display. The device includes an arm having a proximal end and a distal end, wherein a light sensor is situated on or near the distal end. A mover, coupled to or near the proximal end, is configured to move the arm to place the sensor selectively at a parked position and at a measurement position. The mover can be electrically energizable to cause motion of the arm. The mover can be or include a motor. Such a light-sensor device can be mounted to a display and thus become a substantially permanent part of the display and can be used with displays that are difficult or inconvenient to keep color-calibrated, or are difficult or impossible to reach for color-calibration.
Abstract:
A photosensor with customizable angular-response characteristics is presented. This photosensor includes a light-modifier located between the photosensor and a target area to be monitored by the photosensor, wherein the light-modifier provides a customizable angular response for light received at the photosensor from the target area.
Abstract:
A method for determining spectral characteristics of an object is disclosed. A probe is positioned in proximity relative to the object. The probe provides light from at least first and second light sources positioned first and second distances from a central light receiver. The first light source and the central light receiver define a first critical height from the surface below which no specularly reflected light from the first light source is received by the central light receiver, and the second light source and the central light receiver define a second critical height from the surface below which no specularly reflected light from the second light source is received by the central light receiver. The first critical height is different from the second critical height.