Abstract: There is described portable electronic devices having one or more proximity sensors with adaptive capabilities that can help reduce power consumption. The proximity sensors of the portable electronic device in accordance with the present invention may be adjusted to operate in multiple and/or different modes. These modes are environmentally and contextually driven. An adaptive sensor is dynamically adjusted based on different criteria. In particular, adjustments are based on correlations of input signals from one or more sensors of the device, data signals received from the device's processor and/or external data signals received from an external source, which provide characterization values of environmental, contextual and/or ambient light characteristics. Adjustments are made to pulse power to affect the range of the sensor, pulse frequency, filtering of noise of the sensor input signal to attenuate interference and the spectrum of a proximity detector.

Abstract: The present disclosure relates to systems and methods that are related to transmitting and receiving information associated with projection. For example, in some embodiments, a method includes obtaining information associated with one or more changes in one or more features of one or more projection surfaces; coordinating one or more changes in one or more features of one or more projection surfaces with one or more commands; and transmitting one or more signals that include the information associated with one or more changes in one or more features of one or more projection surfaces. In further embodiments, a content is selected responsive to the coordinating.

Abstract: A method and device are disclosed for diodeless terrestrial photovoltaic solar power arrays. In one or more embodiments, the method and device involve a solar power array device without blocking diodes and/or without bypass diodes. The method comprises providing a solar module, a solar array tracker, a power bus, a controller, and an inverter. In one or more embodiments, the method further comprises providing a circuit breaker and/or a bi-position switch. When the controller senses that the solar module power is below a threshold level, the controller commands the solar tracker to vary the solar module's pointing until the solar module is operating at its maximum power point for the solar module's level of illumination. In some embodiments, when the controller senses that the solar module power is less than a minimum bypass threshold level, the controller commands a bi-position switch to bypass current around the solar module.

Abstract: Provided is a light receiving circuit including: a photodiode; a first amplifier including a feedback resistor connected between an input and an output of an inverting amplifier and having an input connected to a cathode of the photodiode; a second amplifier having a configuration similar to that of the first amplifier and having an input connected to an anode of the photodiode; a capacitor element connected between an output of the first amplifier and the input of the second amplifier; and a bias current control circuit that outputs a bias current to the input of the second amplifier according to a current value of the photocurrent, and controls an output voltage signal of the light receiving circuit according to an output of the second amplifier by using the bias current to adjust the sensitivity. The bias current control circuit changes the sensitivity according to the output of the second amplifier.

Abstract: An X-ray image processing apparatus includes a calculating unit adapted to calculate the noise amount of a sensor on the basis of a difference value of a plurality of dark images acquired at different timings by the sensor when no X-rays are irradiated, a changing unit adapted to change a predetermined parameter for processing an X-ray image acquired by the sensor when X-rays are irradiated, in order to prevent the noise amount from being superposed on the X-ray image, and an image processing unit adapted to perform image processing on the X-ray image on the basis of the changed parameter.

Abstract: A projection display device comprises a projection lens section to which light modulated by a light modulating element is entered, a mirror section for reflecting the light emitted from the projection lens section to reflect to the projection lens section side and directing the light to a projection plane, and an operation section for displacing a lens in the projection lens section. The operation section is disposed in a region in which the operation section does not hinder an optical path of the light that has been passed through a projection port provided in a main body cabinet.

Abstract: An expanding chassis for an imaging unit is provided, the expanding chassis for use in imaging systems having a plurality of imaging units arranged in an array. The expanding chassis comprises a rigid frame for housing a light engine and related circuitry, and for mounting a screen on a front surface of the rigid frame for use with the light engine. The expanding chassis further comprises at least one expandable interface pad on at least one side of the rigid frame. The rigid frame and the expandable interface pad have a combined thermal expansion characteristic that provides an overall expansion in the expanding chassis that substantially matches the expansion of the screen.

Abstract: An image sensor is provided. The image sensor comprises a readout circuitry, a first image sensing device, an interconnection, and a second image sensing device. The readout circuitry is disposed in a first substrate. The first image sensing device is disposed at one side of the readout circuitry of the first substrate. The interconnection is disposed over the first substrate and electrically connected to the readout circuitry. The second image sensing device is disposed over the interconnection.

Abstract: Computer-implemented systems and methods for processing image data of a process-free plate are provided according to the present disclosure. The systems and methods may, generally, include a data acquisition step/means for receiving image data using one or more channels of a imaging system, each channel functioning to image the same target region of a process-free plate using a different wavelength of light, and a data processing step/means for filtering the image data using at least one of: (i) self-filtering, (ii) Fourier shrinkage and (iii) Wavelet shrinkage. When the image data is received using a plurality of channels, the received image data may advantageously be combined so as to optimize contrast-to-noise performance. The disclosed systems and methods may advantageously perform the operations of image de-noising, contrast enhancement, and thresholding, and may further involve compensation techniques, e.g., for minimizing distortion and blurring effects.

Abstract: A semiconductor photodetector may provide charge carrier avalanche multiplication at high field regions of a semiconductor material layer. A semiconductor current amplifier may provide current amplification by impact ionization near a high field region. A plurality of metal electrodes are formed on a surface of a semiconductor material layer and electrically biased to produce a non-uniform high electric field in which the high electric field strength accelerates avalanche electron-hole pair generation, which is employed as an effective avalanche multiplication photodetection mechanism or as an avalanche impact ionization current amplification mechanism.

Abstract: A detection device detects a thickness anomoly region within a strip of stock and includes a first roller operatively rotating as the strip of stock passes over a first roller surface; a pivotally mounted pinch roller positioned to operatively pivot about a pivot axis against the strip of stock passing over the first roller; a photoeye mask positioned to rotate about the pivot axis responsive to pivotal movement of the pinch roller; a photoeye slot within the photoeye mask extending between a slot leading end and a slot trailing end; and the transmitting and receiving optical devices positioned on opposite sides of the photoeye slot of the photoeye mask and operative in an photoeye mask-aligned position to project a centered through-beam through the photoeye slot between the transmitting and receiving optical devices.

Abstract: A scanning imaging system is provided. The scanning imaging system comprises an illumination source for illuminating a sample with an excitation light, a filter to block emission light wavelengths from the illumination source. Further, the scanning imaging system comprises a SSPM module comprising a solid state photo multiplier to detect a photon flux and generate electrical signals based on impinging photons; a conditioning circuit to accumulate charge from the SSPM and a micro-controller to change a bias voltage applied to the SSPM to achieve a higher signal-to-noise ratio.

Abstract: A reflection mirror that causes an illumination light to be incident on a movable scale is oscillated in an X-axis direction based on a modulation signal. Accordingly, the optical path of the illumination light, of the illumination light and another illumination light generated at an index scale, periodically changes, and as a consequence, the illumination light is periodically modulated. Accordingly, an extra scanner that scans the illumination light or another illumination light with respect to the movable scale does not have to be arranged, which allows an apparatus to be reduced in size and cost.

Abstract: An optical navigation sensor (ONS) is provided having a spatial frequency filter to transmit radiation at selected spatial frequencies while attenuating other, undesired frequencies and harmonics. The ONS includes a radiation source to transmit radiation toward a portion of a surface that diffusely reflects radiation incident thereon. The spatial frequency filter is disposed to receive radiation scattered from the surface, and, in one embodiment, includes a number of non-circular openings to pass radiation of at least one pre-selected frequency while attenuating other frequencies and harmonics of the pre-selected frequency.

Abstract: A projector includes: a plurality of light source devices; an image projecting unit, and projects the image light; a power supply device; and an outer housing, wherein the plurality of light source devices include a same shape, a plurality of light source storage units each of which accommodates the corresponding one of the plurality of light source devices are provided inside the outer housing, an opening through which the light source devices are attached and detached in the side direction of the outer housing is formed on the outer housing, and the plurality of light source devices are inserted into the plurality of light source storage units through the opening with the same surfaces of the respective light source devices located on the upper side.

Abstract: A pixel circuit that partially incorporates an associated column amplifier into the pixel circuitry. By incorporating part of a mirrored amplifier into the pixel, noise from the pixel is reduced.

Abstract: An imaging apparatus includes a lens barrel, an image sensor, an imaging plate configured to fix the image sensor thereto, an elastic member disposed between the lens barrel and the imaging plate, a fixing member configured to fix the imaging plate to the lens barrel while deforming the elastic member, a heat transfer plate which transfers heat from the imaging plate, and a heat-conductive sheet which is elastically deformable and held between the imaging plate and the heat transfer plate. When the imaging plate is fixed to the lens barrel, the heat-conductive sheet is held between the imaging plate and the heat transfer plate, such that a direction of an elastic force applied to the imaging plate by the elastic member coincides with a direction of an elastic force applied to the imaging plate by the heat-conductive sheet.

Abstract: Disclosed is a projection image display apparatus which includes a light source; and an illumination optics including a phase difference plate. The illumination optics is configured to form an image on a liquid crystal panel with light beams emitted from the light source. The phase difference plate has a deviation in viewing angle characteristics and is arranged to yield a desirable phase difference for a light beam directed in a direction of high intensity among incident light beams distributed at various angles.

Abstract: In a light sensor test unit, a test circuit is built in a display panel and connected to an output node of a light sensor which senses an intensity of an external light. When external light having a predetermined intensity is provided to the light sensor, the test circuit outputs a driving signal in response to a sensing signal output from the output node. A test pixel part includes pixels selected from a plurality of pixels arranged in the display panel and receives the driving signal from the test circuit to display a gray-scale corresponding to the driving signal. A brightness measurer measures a brightness corresponding to the gray-scale displayed in the test pixel part to compare the measured brightness with a predetermined brightness, thereby testing whether the light sensor built in the display panel is normally operated.

Abstract: Disclosed are various embodiments of high-speed, high-performance, low-noise optical encoders having various means for preventing undesired stray light from reaching light detectors incorporated therein. Structures employed to block stray light in the optical encoders include light barriers, air gap trenches, and coatings disposed between first and second sides of a substrate of the encoder. Also disclosed are compact single track optical encoders having a single dome lens disposed thereover, and dual track triple dome lens optical encoders. Methods of making such optical encoders are also disclosed.