Abstract: A radiation imaging apparatus includes a pixel array, a scanning circuit for scanning a plurality of rows of the pixel array in accordance with a selected mode of a plurality of modes, and a readout circuit configured to read out signals from pixels on a selected row in scanning by the scanning circuit. The plurality of modes include a first mode of performing image capturing at a first frame rate and a second mode of performing image capturing at a second frame rate lower than the first frame rate. The number of times of scanning on the plurality of rows by the scanning circuit in one frame period in the second mode is larger than that of scanning on the plurality of rows by the scanning circuit in one frame period in the first mode.

Abstract: Disclosed herein is a radiation detector, comprising: a radiation absorption layer comprising an electrode; a capacitor module electrically connected to the electrode and comprising a capacitor, wherein the capacitor module is configured to collect charge carriers from the electrode onto the capacitor; a current sourcing module in parallel to the capacitor, the current sourcing module configured to compensate for an electrical current of a dark noise in the radiation detector and comprising a current source and a modulator; wherein the current source is configured to output a first electrical current and a second electrical current; wherein the modulator is configured to control a ratio of a duration at which the current source outputs the first electrical current to a duration at which the current source outputs the second electrical current.

Abstract: Disclosed is a pressure tolerant seismic source for deep water survey. The seismic source can include an electromagnetic coil for generating an electromagnetic pulse, a piston plate movable by said electromagnetic pulse, and a housing with a first chamber and a second chamber separated by each other via a common bulkhead arrangement. The seismic source can also include that the coil is arranged within the first chamber and the piston plate arranged within the second chamber. The seismic source can also include the second chamber is at least partly filled with a liquid coupled to the plate so that due to movement of the plate at least one pressure pulse is generated traveling through the liquid within said second chamber.

Abstract: A method includes receiving a seismic dataset from a survey, wherein the seismic dataset represents a portion of a subsurface geological formation and includes primary and multiple data. The method further includes the steps of conditioning the seismic dataset and estimating a model of the multiple data in the conditioned seismic dataset based on a user-defined parameter to derive a primary data set. Further, the method includes the steps of computing a velocity model from the primary data set using the user-defined parameter and updating the estimated multiple model based at least on a modification of the user-defined parameter. In addition, the method includes the steps of recomputing the primary data and the velocity model based on the modified user-defined parameter and generating an image of the primary data.

Abstract: A method, including: storing, in a computer storage device, geophysical seismic data that has been separated into a multiple-free component and a multiple contaminated component; performing, with a processor, a first full wavefield inversion process on the multiple-free component of the seismic data, wherein a first subsurface physical property model is generated; determining, with a processor, an extended target reflectivity, wherein the extended target reflectivity includes a reflectivity for each of a plurality of shots; separately performing, with a processor, a second full wavefield inversion process with the multiple contaminated component of the seismic data for each of the plurality of shots using the reflectivity corresponding to each of the plurality of shots, wherein a second subsurface physical property model is generated; and generating, with a processor, multiple-free final subsurface physical property model by combining the first subsurface physical property model and the second subsurface phys

Abstract: Some aspects of what is described here relate to seismic profiling techniques. In some implementations, a time-sequence of seismic excitations are generated at seismic source locations in a first directional wellbore section in a subterranean region. Each seismic excitation is generated at a respective time and at a respective subset of the seismic source locations. A time-sequence of seismic responses are detected at one or more seismic sensor locations in a second directional wellbore section in the subterranean region. The time-sequence of seismic responses is associated with the time-sequence of seismic excitations. A fracture treatment of the subterranean region is analyzed based on the time-sequence of seismic responses.

Abstract: A system includes an acoustic logging tool including a transducer configured to: emit a first acoustic pulse in a first direction toward a first acoustic surface; measure a first acoustic signal, wherein the first acoustic signal includes a coherent noise component and a first echo component, wherein the first echo component is due at least in part to an interaction of the first acoustic pulse with the first acoustic surface; emit a second acoustic pulse in a second direction, wherein the second direction is at least partly directed away from the first acoustic surface; and measure a second acoustic signal, wherein the second acoustic signal includes substantially only the coherent noise component. The system also includes a data processing system that includes a processor configured to remove the measurement of the second acoustic signal from the measurement of the first acoustic signal to reduce coherent noise.

Abstract: A transducer assembly for downhole imaging includes a 1-3 Piezoelectric composite transducer of high Q ceramic rods in a polymer matrix. The assembly also includes a Teflon® window, a fluid-filled cavity adjacent to the window, and impedance matching material between the composite transducer and the fluid. The transducer is positioned to reduce the reverberation time.

Abstract: A capacitive sensor for locating the presence of an individual and/or of an object is provided including: a first layer including at least one first electrode extending in a first direction; a second layer having at least one second electrode extending in a second direction; in which the first direction is different from the second direction, and in which the first layer is electrically insulated from the second layer.

Abstract: One or more embodiments are directed to conductor tracing instruments that include a receiver for detecting an energized conductor and methods for detecting an energized conductor. The receiver includes a plurality of sensors configured to sense magnetic fields produced by the energized conductor and a feedback mechanism configured to communicate information to a user regarding the magnetic fields being sensed. At least two of the sensors are configured to sense magnetic fields having directions of magnetic force that are different from each other. In one embodiment, the sensors are positioned so as to sense magnetic fields having directions of magnetic force that are perpendicular to each other. A change in information provided by the feedback mechanism communicates a change in direction of the energized conductor being detected by the receiver.

Abstract: A system of a transmitter and a receiver uses magnetic fields to determine the relative position and orientation, or pose, of the two devices. For example, the transmitter could be a handheld control device and the receiver could be an augmented reality or other computing solution. The transmitter transmits two magnetic fields of differing frequencies and differing amplitudes. The receiver selects the one of the magnetic fields with the higher signal to noise ratio to determine the relative pose of the transmitter. By using two magnetic fields of different amplitudes, the pose can be determined over a wider range of separations.

Abstract: There is disclosed a method of performing a controlled source electromagnetic survey, which includes in one embodiment deploying a receiver and an electric dipole source. The source defines a dipole axis. An electromagnetic field is transmitted from the electric dipole source. First and second horizontal components of an electromagnetic field response are detected using the receiver. A vertical component of the electromagnetic field response is then estimated using the detected first and second horizontal components of the electromagnetic field response.

Abstract: An electromagnetic energy source for emitting pulses of electromagnetic energy includes a sonde assembly and an energy storage capacitor. The energy storage capacitor has an electrode mounted in the sonde assembly and operable to generate an electric field, and a capacitive charge storage medium surrounding the electrode. A communication cable extends through a tubular member to the electrode. A fast-closing switch is positioned such that when the fast-closing switch is in a closed position, a circuit is formed that discharges the electrode.

Abstract: Improved algorithm for estimating anisotropic formation resistivity profile using a multi-component induction tool are disclosed. A method for estimating anisotropic formation resistivity profile of a formation comprises obtaining borehole corrected log data and determining at an azimuth angle of the formation. One or more formation bed boundaries are located and initial formation properties are calculated. One of a plurality of inversion windows is sequentially selected and a one-dimensional inversion of each of the sequentially selected one of the plurality of inversion windows is performed.

Abstract: Systems, methods, and devices for evaluation of an earth formation intersected by a borehole using a logging tool. Methods include generating an excitation in the formation with an electromagnetic (EM) signal from a transmitter assembly at at least one frequency; making EM measurements using an EM tool on a tool string in the borehole by receiving a signal at at least one receiver assembly responsive to the excitation; wherein the at least one receiver assembly includes an induction antenna comprising a first winding and a second winding that share a common center tap, and wherein the average potential on the induction antenna is substantially the same as a ground potential. The receiver assembly or transmitter assembly may comprise a receiver or transmitter electrically connected to the induction antenna by a balun transformer, and a capacitive shield encompassing the induction antenna, the capacitive shield comprising a meander shaped isolation gap.

Abstract: A method to minimize borehole effects upon a multi-component induction tool within a well and borehole with water-based mud includes measuring parameters of the reservoir with the induction tool to create an array of measured components. The method further includes comparing a measured component from the array of measured components with a corresponding model component from an array of model components for a reservoir model with known parameters and no borehole effects, and determining the parameters for the reservoir based upon the comparison of the measured component and the corresponding model component.

Abstract: Various embodiments include apparatus and methods that perform a homogeneous inversion processing to data or signals acquired from a multicomponent induction tool operating in a wellbore. The homogeneous inversion processing can be used to provide a quality check of results from radial one dimensional borehole correction processing. Also, the homogeneous inversion processing may be employed as a dip indicator of conventional array induction logging processing. Additional apparatus, systems, and methods are disclosed.

Abstract: A containerized system for vehicle scanning, includes a container; the container having a vertically movable top portion of the container, the top portion including an X-ray source and a collimator; the container having a bottom portion, the bottom portion including a first linear X-ray detector; an entry ramp that rotates to a vertical position in a transportable state and functions as a first wall of the container, the entry ramp being foldable so as not to exceed a height of the container in the transportable state; an exit ramp that rotates to a vertical position in the transportable state and functions as a second wall of the container, the entry ramp being foldable so as not to exceed a height of the container in the transportable state; a generator for autonomous operation; and an operator station for display of scan data.

Abstract: Methods and systems are disclosed for the deployment and operation of shipping container scanning systems that enables scanning of containers passing through a modern, highly automated port without impeding the flow of commerce. Locating the scanners where container dwell time is already longest, and configuring scanners to scan up to several containers in parallel but under separate scanning control, minimizes any delay associated with scanning. Operationally integrating scanning systems with the automated logistical port systems ensures smooth, delay-free operation. Controlling the flow of information so that scanning results, including but not limited to images and assessments of the presence or absence of threat material or contraband, are sent only to government Customs and/or security facilities adjacent to but separate from the port insulates port operators from involvement in activities that could slow container throughput.

Abstract: The invention provides a device (100) for screening one or more items (101,1806) of freight or baggage for one or more types of target material, the device comprising: a source (200, 201,1800) of incident radiation (204,206,1804) configured to irradiate the one or more items (101,1806); a plurality of detectors (202,209,1807, 301) adapted to detect packets of radiation (205,207,1700) emanating from within or passing through the one or more items (101, 1806) as a result of the irradiation by the incident radiation (204, 206, 1804), each detector being configured to produce an electrical pulse (312) caused by the detected packets having a characteristic size or shape dependent on an energy of the packets; one or more digital processors (203, 210, 303, 304, 306, 305) configured to process each electrical pulse to determine the characteristic size or shape and to thereby generate a detector energy spectrum for each detector of the energies of the packets detected, and characterize a material associated with the o

Abstract: In one example, an image data correction device is configured to an ionizing radiation detection device, wherein the ionizing radiation detection device is configured to detect ionizing radiation in a plurality of energy ranges transmitted through an object to which radiation is irradiated from a radiation source, the radiation detection device comprising: a first detector for detecting ionizing radiation in a first energy range that is transmitted through the object to generate first radiation image data; a second detector configured in parallel to the first detector with a predetermined region sandwiched between the first and the second detectors, for detecting ionizing radiation in a second energy range that is transmitted through the object to generate second radiation image data. The first and the second detectors are configured to receive the ionizing radiation concurrently so that the first and the second image data are generated concurrently.

Abstract: An inspection device for quarantine that includes a dual-energy CT apparatus capable of distinguishing substances, a DR apparatus, a substance identification system capable of enhancing display of an object (plant, animal, meat, etc.) focused for quarantine and automatically so labeling, and an image processing system capable of highlighting a suspect of quarantine and providing a corresponding automatic alarm. Compared to the prior art, the present disclosure can highlight a focused object for quarantine, which may improve accuracy and efficiency of inspection for quarantine at a port.

Abstract: A method for rebalancing a group of accelerometers in a gravity gradiometer instrument (GGI) includes the steps of defining and implementing a number of groupwise actuation constrainment modes based on a design of the gravity gradiometer instrument and its accelerometers. Implementing one constrainment mode comprises differentially scaling and distributing a single electrical current to multiple accelerometers' rebalance circuitry to cancel a specific acceleration effect experienced by the group of accelerometers or gradiometer as a whole. Superposition of a number of such modes enables rebalancing the full acceleration environment experienced by the group of accelerometers, given negligible local differential acceleration effects specific to, say, an individual accelerometer of the assembly.

Abstract: A photosensor includes a light projection unit, a light receiving unit, a determination unit that determines a magnitude relation between a received light quantity of the light receiving unit and a threshold value set for the received light quantity; and a threshold value setting unit that sets the threshold value of the received light quantity. The threshold value setting unit calculates for each of a plurality of different wavelength regions, a contrast difference that is a difference between a received light quantity obtained when projection is performed on a detection target on a surface of a workpiece and a received light quantity obtained when projection is performed on a background on the surface of the workpiece, and updates the threshold value based on the contrast difference for a wavelength region among the plurality of wavelength regions in which the contrast difference has a maximum value.

Abstract: The disclosure relates to a locating system, comprising at least one hand-held locating sensor, which is provided for capturing locating data related to objects to be located that are hidden under an examination surface, a position sensor, which is provided for capturing position data, which can be associated with the locating data, and an evaluating unit, which is provided for determining at least two-dimensional map information from the locating data and the position data and providing said at least two-dimensional map information. According to the disclosure, the locating system comprises at least one data source, which is provided for providing data for the purpose of a modification of the at least two-dimensional map information.

Abstract: Inversion techniques are provided for imaging subsurface regions from geophysical data sets. The inversion techniques provide a geophysical data set containing data measured from a subsurface region to an objective function. These techniques further optimize the objective function to invert for an implicitly represented geologic structure of the subsurface region and at least one geophysical parameter of the subsurface region. In addition, the inversion techniques use a computer system to present results produced by the objective function optimization.

Abstract: Methods for developing equation-of-states (EOS) composition models for predicting petroleum reservoir fluid behavior and understanding fluid heterogeneity in unconventional shale plays are described. In particular, limited geochemical data from samples taken from the reservoir of interested are utilized to build and tune the EOS model and improve predictions. Real-time applications are also described.

Abstract: The invention is a method for exploiting a subterranean medium, according to an exploitation scheme defined on a representation of the medium based on a two-dimensional grid representing the subterranean medium. The quality of the mesh cells of the grid is optimized by displacing the nodes of the grid by a procedure for minimizing the deformation of the grid by generating a reference grid; imposing a displacement of at least one node, termed a rigid node, of the reference grid on a corresponding node in the grid to be optimized; and constructing an optimized two-dimensional grid by displacement of the other nodes of the reference grid, while minimizing the displacement field of the nodes.

Abstract: A method and system for generating probabilistic estimates of precipitation intensity from radar reflectivity measurements is provided. In an embodiment, an agricultural intelligence computer system receives radar reflectivity measurements for a particular location from an external data source. The agricultural intelligence computer system constructs a probability distribution of drop sizes describing the probability that the precipitation included drops of various sizes based on the radar reflectivity measurements. The agricultural intelligence computer system samples a plurality of values from the probability of distribution of drop sizes and uses the plurality of values and the radar reflectivity measurements to compute a plurality of rainfall rates. Based on the plurality of rainfall rates, the agricultural intelligence computer system constructs a probability distribution of rainfall rates for the particular location.

Abstract: Embodiments of articles with optical coatings are described herein. According to one embodiment, an article may comprise a substrate having a major surface, and an optical coating disposed on the major surface and forming an anti-reflective surface, the optical coating comprising an anti-reflective coating. The article may exhibit a maximum hardness of about 12 GPa or greater as measured on the anti-reflective surface by a Berkovich Indenter Hardness Test along an indentation depth of about 100 nm or greater. The article may exhibit a single side average light reflectance measured at the anti-reflective surface of about 8% or less over an optical wavelength regime in the range from about 400 nm to about 800 nm. The article may exhibit an average light transmission of about 90% or greater over an optical wavelength regime in the range from about 400 nm to about 800 nm.

Abstract: A low-reflection coating of the present invention is a porous film including: fine silica particles being solid and spherical and having an average particle diameter of 80 to 150 nm; and a binder containing silica as a main component, the fine silica particles being bound together by the binder. The binder further contains an aluminum compound. The low-reflection coating contains, as components, 55 to 70 mass % of the fine silica particles, 25 to 40 mass % of the silica of the binder, and 2 to 7 mass % of the aluminum compound in terms of Al2O3. The low-reflection coating has a thickness of 80 to 800 nm. The low-reflection coating yields a transmittance gain of 2.5% or more when provided on the substrate. The transmittance gain represents an increase in average transmittance of the substrate provided with the low-reflection coating relative to the substrate not provided with the low-reflection coating, the average transmittance being measured in the wavelength range of 380 to 850 nm.

Abstract: The translucent structure of the present invention has a haze of higher than 10% and at most 70% and has a concavo-convex structure on its surface. The concavo-convex structure has first convex portions having a diameter of larger than 10 ?m in a cross section at a height of 0.05 ?m+the bearing height of a surface shape, and second convex portions having a diameter of larger than 1 ?m in a cross section at a height of 0.5 ?m+the bearing height. The average diameter of the first convex portions is larger than 10 ?m and at most 185 ?m in a cross section at a height of 0.05 ?m+the bearing height. The maximum height of the first convex portions is from 0.2 to 8 ?m. The number of the second convex portions is from 0.0004 to 1.2 per 1 um2.

Abstract: The present invention relates to an optical film including a transparent film, and a coating layer on at least one surface of the transparent film, wherein the coating layer is formed using a water-dispersible coating composition comprising a polymer resin including a hydroxyl group; at least one cross-linking agent selected from the group consisting of a titanate-based cross-linking agent and a zirconate-based cross-linking agent; and water-dispersible fine particles, and a polarizing plate including the same.

Abstract: A lens structure is pre-formed with features that facilitate accurate alignment of a light emitting chip within the lens structure. To ease manufacturing, the features include tapered walls that allow for easy insertion of the light emitting chip into the lens structure, the taper serving to accurately align the light emitting chip when the chip is fully inserted. The taper may include linearly sloped or curved walls, including complex shapes. An adhesive may be used to secure the light emitting chip to the lens structure. The light emitting chips may be picked-and-placed into an array of lens structures, or picked-and-placed onto a substrate that may be overlaid by the array of lens structures.

Abstract: A method for adjusting a focal length of a liquid lens is related. The liquid lens includes a sealed shell, a liquid material, a transparent carbon nanotube structure within the liquid material, and a first electrode and a second electrode. A voltage is applied to the carbon nanotube structure to cause rapid heating, which is transferred to the liquid material to change the density thereof, and the refractive index of the liquid material is thus changed. Thus, the focal length of the liquid lens is changed.

Abstract: Embodiments of the present invention include a device for removing energy from a beam of electromagnetic radiation. Typically, the device can be operatively coupled to a turbidity measuring device to remove energy generated by the turbidity measuring device. The device can include a block of material having one of a plurality of different shapes coated in an energy absorbing material. Generally, the device can include an angled or rounded energy absorbing surface where the beam of electromagnetic radiation can be directed. The angled or rounded energy absorbing surface can configured to deflect a portion of the beam of electromagnetic radiation to a second energy absorbing surface.

Abstract: A light blocking member includes a first surface, a second surface, an outside surface and an inside surface. The first surface includes a first asymmetric opening. The second surface includes a second asymmetric opening corresponding to the first asymmetric opening. The outside surface disposed between the first surface and the second surface includes a cutting portion and an arch portion. The cutting portion connects the first asymmetric opening and the second asymmetric opening. The inside surface is disposed between the first surface and the second surface. A virtual curved surface is formed between two ends of the cutting portion, and a virtual line is formed between a central point of the virtual curved surface and a central axis of the light blocking member. Two shapes of both of the first asymmetric opening and the second asymmetric opening with respect to two sides of the virtual line are asymmetric.

Abstract: One embodiment of the present invention provides a light diffusion film, including: 100 parts by mass of a polycarbonate resin (A); 1 to 10 parts by mass of organic fine particles (B); and 0.01 to 0.5 parts by mass of inorganic fine particles (C), wherein the inorganic fine particles (C) have an average particle size of less than 1 ?m and a refractive index at a wavelength of 589 nm of 2.00 or more.

Abstract: The present invention relates to a method for collecting sunlight through an image method by tracking the sun using a dish-shaped light collector or a paraboloidal light collector and, and to a method and an apparatus for transmitting high-density light as the collected sunlight to a remote place, to which the light is applied, and for generating super-high-density light by combining, in a multi-stage manner, the high-density light obtained through a plurality of light collectors.

Abstract: The high-brightness reflective luminous membrane of the present invention comprises (from top to bottom) a reflective layer and an attachment layer. The reflective layer is formed by a plurality of beads held in place by an adhesive. The attachment layer may adhere to a substrate. The beads may be transparent beads, which may reflect white light, or translucent beads, which are plated with metal via galvanization and may reflect colorful light. Either the attachment layer or the reflective layer may be provided with luminous powder, reflective powder, colors (or a first pattern) via coating, spraying, adhesion or printing to form a colorful reflective luminous layer. With the presence of incident light, the membrane can reflect high-brightness white light and/or bright colorful light. In addition, the membrane may exhibit various types of reflected patterns according to the distance to incident light source and brightness of incident light and a viewer's observing angle.

Abstract: A resin molding is provided. The resin molding includes an optically transparent plate-shaped portion which consists essentially of a single material and which includes a first surface having a smooth surface portion, and a second surface having plural convex portions. Each of the plural convex portions includes a first inclined surface having a concavo-convex portion thereon; and a second inclined surface having a smooth surface portion. The concavo-convex portion allows at least part of light incident from the first surface to cause total reflection, diffraction and interference and to travel toward the smooth surface portion of the second inclined surface, and the smooth surface portion selectively reflects visible light in a predetermined wavelength range toward the first surface, so that when the first surface of the resin molding is observed from outside, the resin molding has a colored appearance with at least one color in addition to a metallic appearance.

Abstract: A curved grating structure, a display panel and the display device are provided. The curved grating structure includes multiple grating strips spaced from each other. Grating intervals between adjacent grating strips are successively decreased from a center point of the curved grating structure to a terminal of the curved grating structure. The grating interval between two adjacent grating strips is a distance in a first direction between center points of the two adjacent grating strips, and the first direction is a direction perpendicular to a normal vector of the curved grating structure passing through a center point of the curved grating structure.

Abstract: An optical arrangement for a camera module with an image sensor is provided. The optical arrangement includes optical components having a transparent cover element; an infrared absorbing cut-off filter; and an optical lens. The optical components are arranged, along an incident optical beam path going through the optical components onto the image sensor, in a sequence through the transparent cover element, then the infrared absorbing cut-off filter, and then the optical lens.

Abstract: The present invention provides a diffuser light blocking device comprising an end cap member (820) having a pocketing feature (821) that has a side wall (822) and an end reflective surface (810); the pocketing feature's shape corresponds to exterior shape of distal portion (830) of a diffuser (800) having a distal end surface (801); the pocketing feature engages the distal portion; an overlapping section (815) of the pocketing feature's side wall surrounds the distal portion's side wall (802) and prevents at least 95% of the light output from the distal portion from escaping out of the distal portion's side wall; the end reflective surface blocks any forward propagating light output from the distal end surface and returns at least 80% of light coming out of the distal end surface back towards the diffuser; the end cap member is thermally conductive; the end cap member's length (831) and diameter (832) provide an exterior surface area that is at least 1,000% of the surface area of the distal end surface; and t

Abstract: A front light module including a light guide plate and a light source is provided. The light guide plate includes a first surface, a second surface and a light entering surface. The second surface is opposite the first surface. The light entering surface has at least one area that is adjacent to the first surface and the second surface. The light source is disposed beside the light entering surface and is configured to illuminate the light guide plate. The at least one area and an optical axis of the light source form a first angle. The first angle is less than 90 degrees. A display module is also provided.

Abstract: A mouse pad with a light guide function includes a light guide plate installed on a side of a pad, a lateral light source installed at a side edge of the light guide plate, a shading structure installed at the top of the lateral light source and disposed together with the lateral light source on the same side of the light guide plate, and the mouse pad can guide light of the lateral light source through the installation of the shading structure without passing from the top of the lateral light source, so as to simplify the manufacturing process.

Abstract: A light concentrator (11) is disclosed which comprises at least one lighting element (1) configured to emit light (32), an optical filter (3) arranged so as to receive light having a wavelength within a selected wavelength emission band via a light in-coupling surface (4) and configured to selectively transmit light incident on the light in-coupling surface through the optical filter and output the light via a light out-coupling surface (5), on a condition that the light incident on the light in-coupling surface has a wavelength within a selected wavelength transmission band, a light-redirection element (6) having a light-redirection surface (7) arranged substantially parallel in relation to the light out-coupling surface (5) of the optical filter so as to receive at least some of the light out-coupled via the light out-coupling surface (5), and configured to redirect light impinging on the light-redirection surface, and a light-guiding region (8), which is delimited at least by the light-redirection surface

Abstract: In one embodiment, an overhead street light (a luminaire) is formed that has an asymmetric light intensity distribution, where the peak intensity is greatest along the direction of the street, lower directly across the street, and much lower on the house side of the street. Around the edge of a circular transparent light guide are white light LEDs that inject light into the light guide. To help control the asymmetry of the light intensity distribution, sawtooth-shaped grooves are formed in the light guide surface opposite to the light-emission surface and parallel to the street. Gaussian diffusers are used to partially diffuse the light. By proper selection of the grooves, the Gaussian diffuser, and the relative amounts of light emitted by LED segments around the light guide, the desired asymmetrical light intensity distribution is achieved while a direct view of the light exit surface appears as a uniform light.

Abstract: Disclosed is a backlight system of a liquid crystal display device. A light guide plate is provided on a frame. A quantum dot diaphragm is arranged above or below the light guide plate. An optical diaphragm set is arranged above the light guide plate or the quantum dot diaphragm. When the quantum dot diaphragm is cut, left and right sides or/and upper and lower sides thereof are left with margins which are processed into bending portions while the backlight system is manufactured. Useless areas are located on the margins. The margins are bent, and are configured to encase the light guide plate or the optical diaphragm set.

Abstract: An appliance includes a control panel with a dielectric substrate. A printed circuit board is spaced from a back surface of the dielectric substrate. A light emitter and a capacitive sensor are positioned on the printed circuit board. The capacitive sensor includes a pair of conductive bodies that extend between the dielectric substrate and the printed circuit board. The dielectric substrate is positioned on a cabinet such that the capacitive sensor is triggered when a user touches a front surface of the dielectric substrate and such that an appliance function indicator is illuminated at the front surface of the dielectric substrate during operation of the light emitter.