Abstract: A luminescence shock avoidance algorithm selectively limits the brightness level of a display device when the display device is activated in a dark environment to prevent the temporary vision impairment that can occur when a display device is activated in a dark environment. The algorithm receives the state of the display (e.g. on or in standby mode), and can optionally receive an ambient lighting value from an ambient light sensor and a user-selectable manual brightness adjustment setting to determine whether luminescence shock avoidance should even be triggered, and if it is triggered, how much should the brightness level of the display be limited.

Abstract: An optical scanning apparatus according to one aspect of this invention includes a light source that outputs a light beam having a light power based on a supplied driving current, a detection unit that detects the light power of the light beam, and a voltage holding unit that holds a charged voltage used to control the driving current. The optical scanning apparatus further includes a control unit that controls a charging unit so that the voltage holding unit is charged in a state where the driving current is not supplied to the light source, and controls the charging unit based on a detection result of the detection unit so that the voltage held in the voltage holding unit is controlled from the voltage of the voltage holding unit charged in the state where the driving current is not supplied to the light source.

Abstract: A model-based scan line encoder is disclosed. A method of model-based scan line encoding includes defining a geometry model for describing a scan line of a scan, the scan line including multiple scan points. The method further includes calculating a trajectory model representing an approximate pattern of deviation of the multiple scan points relative to the geometry model. The method further includes calculating multiple residuals, each of the residuals associated with a difference between the deviation of the scan points and the trajectory model. The method may further include compressing the residuals.

Abstract: The detector that detects a light beam emitted from a light source of a second image forming device and reflected by a polygon mirror, and an adjustment device that performs adjustment processing of adjusting the velocity of the polygon mirror based on an output of the detector are provided. Before a first image forming device performs the image forming processing, the adjustment device performs the adjustment processing while causing the light source of the second image forming device to emit the light beam during a time period including at least a time period in which a photosensitive member of the second image forming device is emitted with the light beam. Before the adjustment processing is finished, the first image forming device starts to move a developing member to a developing position.

Abstract: A fixture retains a housing in a fixed position relative to an imaging device. The housing has an aperture through which a surface recessed into the housing is aligned with the imaging device by the fixture. A planar electroluminescent illuminator is held in the fixture within a pocket of the fixture in which the housing is received. The illuminator uniformly emits light in response to electrical power applied thereto and the illuminator has an aperture formed therein held in alignment by the fixture with the aperture in the housing such that the light emitted by the illuminator is directed towards the recessed surface. An imaging device generates an image of the recessed surface through the aperture in the housing and the aperture in the illuminator.

Abstract: A laser driving circuit, a laser driving method, and a device using laser light that can reduce speckle noise caused by laser light as coherent light are provided. In the laser driving circuit that generates laser driving current for driving a plurality of laser light sources emitting laser light of different wavelengths on the basis of an input video signal, a high-frequency signal of a frequency exceeding the band of the video signal is superimposed on the laser driving current generated on the basis of the input video signal, whereby speckle noise caused by the laser light as coherent light is reduced.

Abstract: An apparatus that is configured to be installed with a predetermined maximum wattage output wherein the maximum wattage output can be selected by the installer. The light fixture includes a housing and an adjustable resistor. A light source is electrically to the adjustable resistor. And the adjustable resistor is associated with the housing.

Abstract: In accordance with certain embodiments, lighting systems include one or more lightsheets each including a plurality of strings of light-emitting elements, control elements, and power conductors for supplying power to the light-emitting elements and control elements.

Abstract: The present disclosure relates to a lighting fixture that includes a driver module and at least one other module that provides a lighting fixture function, such as a sensor function, lighting network communication function, gateway function, and the like. The driver module communicates with the other modules in a master/slave scheme over a communication bus. The driver module is configured as a slave communication device, and the other modules are configured as master communication devices. As such, the other modules may initiate communications with the driver to send information to or retrieve information from the driver module.

Abstract: Methods are disclosed for assigning a pupil facet of a pupil facet mirror of an illumination optical unit of a projection exposure apparatus to a field facet of a field facet mirror of the illumination optical unit for the definition of an illumination channel for a partial beam of illumination light.

Abstract: The present invention provides a tunnel decision apparatus, including: a camera which outputs an image of a view in front of a vehicle; a road area classifying unit which detects a vanishing point from the image of the view in front of a vehicle to output at least one of a road area and a non-road area; a pattern detecting unit which detects at least one of a lamp pattern from the non-road area and a lane pattern from the road area; and a tunnel decision unit which determines whether the vehicle enters a tunnel in consideration of at least one of the lamp pattern and the lane pattern.

Abstract: The lighting device includes a control unit configured to set desired values of drive currents of solid state light sources with different light emission colors. The control unit has a normal mode and a correction mode. The normal mode is a mode of setting the desired values to normal desired values corresponding to instruction values representing a desired color of colors. The correction mode is a mode of setting the desired values to corrected desired values corresponding to corrected instruction values obtained by correcting the instruction values.

Abstract: Disclosed herein are an apparatus to recognize an illumination environment of a vehicle and a control method thereof. The apparatus includes an infrared illumination sensor to detect an infrared illumination amount emitted from the sun, a camera, and an illumination environment recognition unit which detects the infrared illumination amount by the infrared illumination sensor, receives a camera exposure time from the camera, receives double exposure images captured to have different exposure values, calculates a general illumination value based on the detected infrared illumination amount, the received camera exposure time, and an illumination value obtained through an image clustering analysis of the double exposure images, calculates a rate of change in the calculated general illumination value, and recognizes a current illumination environment as an illumination environment for each time section based on the calculated general illumination value and the rate of change in the general illumination value.

Abstract: An embodiment of an illumination system for use with an endoscope includes a laser source comprising laser light emitters, an electromagnetic sensor embedded within the laser source to sense light energy, and a control circuit in electronic communication with the electromagnetic sensor and at least one emitter. The control circuit is configured to cause the laser source to pulse light between pixel readout periods. The electromagnetic sensor receives light from at least one emitter and measures an amount of electromagnetic energy generated by at least one emitter. The control circuit controls a duty cycle of the emitters based on a predetermined, known output and in response the amount of electromagnetic energy generated by at least one of the emitters and obtains a desired exposure response for images captured by the image sensor.

Abstract: An ambient light sensor that is operable in high gain mode and low gain mode is provided. The high gain mode may help provide satisfactory sensitivity at low light levels but may generate saturated output levels in bright ambient lighting conditions. Low gain mode may therefore be switched into use when bright ambient lighting conditions are detected. The ambient light sensor may be placed in high gain mode by default. An auto-gain switch controller may detect whether the ambient light reading is saturated during as given period of time. In response to determining that the ambient light reading is saturated for a programmable number of consecutive time periods, the auto-gain switch controller may reset and switch the ambient light sensor to the low gain mode. The gain state may optionally be embedded into the ambient light sensor output.

Abstract: An illumination optical unit for microlithography illuminates an object field with illumination light. The unit includes a first facet mirror that has a plurality of first facets, and a second facet mirror that has a plurality of second facets. The unit has facet pairs which include respectively a facet of the first facet mirror and a facet of the second facet mirror which predefine a plurality of illumination channels for illuminating the object field. At least some of the illumination channels have in each case an assigned polarization element for predefining an individual polarization state of the illumination light guided in the respective illumination channel.

Abstract: An X-ray detector assembly comprising a light attenuator of electro-chromic material, the electro-chromic material having a first electrode layer electrically coupled to a first surface of the electro-chromic material and a second electrode layer electrically coupled to a second surface of the electro-chromic material, wherein the second surface is disposed opposite the first surface, and the light attenuator having a controllable light transmission rate. The X-ray detector further comprising a scintillator deposited on the first electrode layer and a photo detector deposited on the second electrode layer. The photo detector having a sensing surface adjacent to the second electrode layer of the light attenuator. A variable power supply is electrically coupled to the first and second electrode layers of the light attenuator to provide a controllable voltage across the first and second electrode layers to control the light transmission rate of the light attenuator in real time.

Abstract: An optical wavelength and optical power measurement device is provided. The optical wavelength and optical power measurement device includes: an input unit in which an optical connector that emits communication light of an infrared ray wavelength region is connected; a filter unit that separates the communication light of an infrared ray wavelength region and light of a visible ray wavelength region; a sensing unit that communicates with a path of the communication light of an infrared ray wavelength region of the filter unit and in which a signal of the communication light of an infrared ray wavelength region is input; and an inspection unit that communicates with a path of the light of the visible ray wavelength region of the filter unit and that inspects a surface of the optical connector.

Abstract: A switching element driving circuit includes a current detection unit that outputs a driving stop signal based on a level of current flowing through the switching element, and first and second control elements each connected to a control terminal of the switching element. A comparator controls the first control element based on a result of comparison of an output voltage of the driving circuit main unit with a first reference voltage. A differential amplifier drives the second control element in accordance with a voltage difference between the output voltage of the driving circuit main unit and a second reference so as to maintain the output voltage equal to the second reference voltage. An operation stopping unit stops the comparator and the differential amplifier to drive the first and second control elements, respectively, in response to the driving stop signal.

Abstract: A light source detector detects, from a vehicle, a light source that exists outside the vehicle. A light reactive sheet is arranged in a planar form and is located in front of the driver driving the vehicle. The light reactive sheet changes color in response to light having a specific frequency. A light source position calculating unit calculates a light source position on the surface of the light reactive sheet based on output of the light source detector. A light emitter emits light having the specific frequency from the inside of the vehicle to the light reactive sheet based on the calculated light source position.

Abstract: A load control system for controlling an electrical load may include a sensor, a remote control, and a load control device. The remote control may comprise a button and may be configured to wirelessly transmit a digital message in response to an actuation of the button. The load control device may be configured to control the electrical load, be responsive to the sensor, and/or be configured to be associated with the remote control. The load control device may be responsive to the digital message transmitted by the remote control if the remote control is associated with the load control device. The load control device may be configured to automatically operate in a first mode of operation if the remote control is not associated with the load control device, and automatically operate in a second mode of operation if the remote control is associated with the load control device.

Abstract: Luminance variation due to change of current through a light-emitting element caused by change in environmental temperature is suppressed. Current through a first light-emitting element in a pixel portion is controlled by a monitor circuit. The monitor circuit includes a second light-emitting element, a transistor, a resistor, and an amplifier circuit. An anode of the second light-emitting element is connected to a source of the transistor. A cathode of the second light-emitting element is connected to the resistor and a first input terminal of the amplifier circuit. A second input terminal of the amplifier circuit is connected to a second power supply line. An output terminal of the amplifier circuit is connected to a gate of the transistor. The drain of the transistor is connected to a third power supply line. The transistor and the resistor each include an oxide semiconductor film.

Abstract: Systems and methods are provided for measuring an ambient light level in a volume that is lighted by a pulsating light source. A first light sensor is configured to generate a first signal based on an amount of light detected in the volume. A bypass switch is configured to bypass the first light sensor at a first point in time when the light source is on and to not bypass the first light sensor at a second point in time when the light source is off. A second sensor is configured to generate a second signal based on an environment in the volume, and a difference circuit is configured to determine a difference magnitude between the second signal and the first signal to generate an ambient light signal.

Abstract: A display apparatus and a method for controlling a backlight module thereof are provided. The display apparatus includes the backlight module, an input unit and a processing unit. A light-emitting device of the backlight module includes a first light-emitting unit and a second light-emitting unit. A photoelectric conversion efficiency of the first light-emitting unit is higher than that of the second light-emitting unit, and a covering color gamut of the second light-emitting unit is larger than that of the first light-emitting unit. The input unit generates an input signal. The processing unit is coupled to the input unit and configured to receive the input signal generated by the input unit, and the processing unit is coupled to the backlight module, and dynamically adjusts respective light intensity ratios of the first light-emitting unit and the second light-emitting unit according to the received input signal.

Abstract: The disclosure relates to a system and method for evaluating and calibrating detector in a scanner, further evaluating and calibrating time information detected by at least one time-to-digital convertor.

Abstract: An apparatus and method for measuring the sloshing in the cargo tank of a liquefied natural gas carrier is provided. The apparatus includes: a plate-shaped floating mat coupler which floats on the surface of the liquefied natural gas contained in the cargo tank of a liquefied natural gas carrier and moves in accordance with the movement of the liquefied natural gas; and an optical sensor measuring acceleration using optical sensor technology to measure acceleration when the floating mat coupler floats by being inserted in one or more positions in the floating mat coupler. The characteristics of the movement occurring in accordance with the sloshing of the liquefied natural gas in the cargo tank of a liquefied natural gas carrier, and the shock and deformation which the inner wall of the cargo tank is subjected to because of such movement, are measured at multiple angles.

Abstract: Light fixture systems and application of ambient light measurement for improving lighting system efficiency.

Abstract: Several embodiments of display systems that have wide color gamut performance are disclosed herein. In one embodiment, a display system comprises a plurality of emitters, said emitters emanating light into an optical path; a first modulator, said first modulator comprising a plurality of colored subpixels and wherein said first modulator transmitting light emanating from said emitters in said optical path; and a color notch filter, said color notch filter placed in said optical path for conditioning or convolving light together with said first modulator.

Abstract: The present disclosure relates to camouflaged systems and related camouflaging methods. The camouflaged systems can include at least one camouflaged object, including but not limited to transmission lines and transmission towers. One or more pluralities of lights may be disposed on or otherwise coupled to a surface of the camouflaged object. Each of the one or more pluralities of lights can be configured to emit light having a characteristic that appears like (e.g., matches, mimics, simulates, corresponds to, or otherwise blends with) an environmental condition, which can include any variety of background environmental landscapes.

Abstract: A method and apparatus are provided for detecting and recovering from a damaged signal line in a communication cable. Signals are transmitted over a first plurality of signal lines within the cable from a first end, signals are transmitted over a second plurality of signal lines within the cable from the second end, and the quality of signals received on each of the first plurality of signal lines at the second end of the cable are monitored. A first one of the first plurality of signal lines that is not providing a signal of a predetermined minimum quality is identified, the identified first signal line is automatically switched out for a first spare signal line within the cable, and one of the second plurality of signal lines that is logically associated with the identified first signal line is automatically switched out for a second spare signal line within the cable.

Abstract: In a projector, a reflection mirror configured to reflect light emitted from a discharge lamp is disposed on a first end of a discharge lamp main body, a first electrode is disposed on the first end side, each of a first AC period and a second AC period alternately includes a first polarity period in which the first electrode serves as an anode and a second polarity period in which a second electrode serves as an anode, a controller causes a period to transition from the first AC period to the second AC period in a case where an input reception unit receives a stop operation on the projector, and an absolute value of a driving current of the second polarity period in the second AC period is greater than an absolute value of the driving current of the second polarity period in the first AC period.

Abstract: A light emitting apparatus having a plurality of light sources comprises a brightness sensor; a first malfunction detecting unit configured to detect any malfunction of each of the light sources; a second malfunction detecting unit configured to detect any malfunction of the brightness sensor; a storage unit configured to store a target value of a detected value of the brightness of each of the light sources; and a control unit configured to determine a light emission control value of each of the light sources so as to decrease a difference between the target value and the detected value of the brightness of each of the light sources; wherein the control unit allows the light emission control value to be set to a fixed value if the malfunction of at least any one of the light source and the brightness sensor is detected.

Abstract: The present invention reveals a distance sensor comprising: a signal receiving unit, an electromagnetic wave transmitting unit, and a magnetic signal transmitting unit; wherein the signal transmitting unit is adapted to transmit to the signal receiving unit a sensed distance between the signal receiving unit and the magnetic signal transmitting unit, wherein the magnetic signal transmitting unit further comprises an electromagnetic wave receiving unit and an electromagnetic wave-to-electric power converter, and wherein the electromagnetic wave receiving unit receives electromagnetic waves transmitted from the electromagnetic wave transmitting unit to operate the magnetic signal transmitting unit.

Abstract: An electronic device includes: a main body of the electronic device; a display, provided on the main body of the electronic device, where the display includes a first light transmitting layer, and a support layer between the main body of the electronic device and the first light transmitting layer, and where the first transmitting layer is located on a first surface of the electronic device; N sensors, provided in the display, and located inside the first transmitting layer, wherein a capturing module of the N sensors faces an inner surface of the first transmitting layer; and the N sensors are adapted to capture ambient light penetrating the first light transmitting layer or ambient light irradiating the N sensors via a through hole of the first light transmitting layer.

Abstract: Method for setting an illumination setting in an illumination optical unit comprising at least one controllable correction device, which includes a multiplicity of adjustable correction elements for influencing the transmission, wherein the illumination setting is varied for adapting a predetermined imaging parameter in the region of an image field.

Abstract: A three-dimensional image sensing device includes a light source, a sensing module, and a signal processing module. The sensing module includes a pixel array, a control unit, and a light source driver. The light source generates flashing light with a K multiple of a frequency of flicker noise or a predetermined frequency. The pixel array samples the flashing light to generate a sampling result. The control unit executes an image processing on the sampling result to generate a spectrum. The light source driver drives the light source according to the K multiple of the frequency or the predetermined frequency. The signal processing module generates the K multiple of the frequency according to the spectrum, or outputs the predetermined frequency to the light source driver, and generates depth information according to a plurality of first images/a plurality of second images during turning-on/turning-off of the light source included in the sampling result.

Abstract: An illumination system is disclosed having a polarization member that includes first and second polarization modifiers movable into at least partial intersection with a radiation beam such that the respective polarization modifier applies a modified polarization to at least part of the beam. The illumination system further includes an array of individually controllable reflective elements positioned to receive the radiation beam after it has passed the polarization member, and a controller configured to control movement of the first and second polarization modifiers such that the first and second polarization modifiers intersect with different portions of the radiation beam.

Abstract: In order to provide a calculation method for reproducing solar cell characteristics with high accuracy by using data of a short-circuit current, an open-circuit voltage and the maximum power operation point of a solar cell in a temperature and a solar radiation intensity in a standard state, parameter values for determining characteristics in the standard state are calculated by using data of the short-circuit current, the open-circuit voltage and the maximum power operation point of the solar cell in the temperature and the solar radiation intensity in the standard state. Next, temperature coefficients of the open-circuit voltage and the reverse saturation current are calculated by using the calculated parameters, and a short-circuit current, an open-circuit voltage and the maximum power operation point at a given temperature are calculated.

Abstract: A photonic oscillator can produce a multifrequency optical signal having a spectrum that includes regularly spaced spectral lines. A photodetector can convert the multifrequency optical signal to a multifrequency electrical signal having a spectrum that includes the regularly spaced spectral lines. A bandpass filter can attenuate all but one spectral line of the spectrum of the multifrequency electrical signal to form a single-frequency electrical signal having leading/trailing edges that have the same precision as the photonic oscillator. A continuous-wave laser can lock to the multifrequency optical signal and produce a continuous-wave optical signal at a wavelength precisely locked to the photonic oscillator. A data encoder/decoder can modulate/demodulate a data stream onto/from the continuous-wave optical signal at a data rate of the single-frequency electrical signal. The modulated optical signal can be clocked with the leading/trailing edges of the single-frequency electrical signal.

Abstract: In an image forming apparatus including multiple light emitting elements, upon receiving an instruction from a user to execute correction (first correction) of a phase shift due to a shift in the relative positions of an optical scanning apparatus and the photosensitive member, a CPU executes correction (second correction) of a phase shift due to temperature change in the image forming apparatus. Thereafter, the CPU performs image formation control such that a phase adjustment image is formed on a recording medium, and determines a phase adjustment value based on an adjustment value input by the user. The CPU sets the phase adjustment value in the optical scanning apparatus to correct the phase shift. Thus, when the first correction is to be executed, the CPU executes the second correction before executing the first correction.

Abstract: Disclosed is a large-range input circuit for digital signals in the range of extra-low voltage signals of ?120 V and in the range of low voltage signals of <1500 V, said input circuit comprising series-connected Zener diodes that are polarized in the reverse direction, each one defining at least one switching threshold in the range of the extra-low voltage signals or in the range of the low voltage signals, and can be selected to be active by not being bridged, wherein a respective auxiliary optocoupler, which can be controlled by a microprocessor, is used to bridge the inactive Zener diode.

Abstract: A system and method for calibrating an optical module. The optical module including a microprocessor with non-volatile memory is provided at a calibration station for measuring calibrated value of a device parameter against raw values starting from minimum value in each of multiple zones of a primary parameter with one or more secondary parameters at least being set to a basis calibration point to determine coefficients for generating a N-spline function for the multiple zones and multiple multipliers for each zone corresponding to multiple calibration points. The coefficients and multiple multipliers are stored in the non-volatile memory and reused respectively for calculating a basis calibrated value based on any current raw value of the primary parameter a N-spline function in particular zone and for determining a final multiplier by interpolation of the multiple multipliers associated with the one or more secondary parameters, leading to a calibrated value for any condition.

Abstract: An extreme ultraviolet (EUV) radiation source module includes a target droplet generator, a first laser source, and a second laser source. The target droplet generator is configured to generate a plurality of target droplets. The first laser source is configured to generate a plurality of first laser pulses that heat the target droplets at respective excitation positions thereby generating a plurality of target plumes. At least one of the target droplets is heated at an excitation position different from that of other target droplets. The second laser source is configured to generate a plurality of second laser pulses that heat the target plumes thereby generating plasma emitting EUV radiation.

Abstract: An intrusion detection system and methods thereof are provided. In exemplary embodiments, the system may comprise an upper scanner adapted to create a first detection layer; a lower scanner adapted to create a second detection layer, the second detection layer overlapping the first detection layer; signal lighting for producing a visual signal; at least one server adapted analyze data received from the upper scanner and the lower scanner to determine if an object is in the path of the vehicle; and wherein the at least one server is adapted to activate the signal lighting when it is determined by the server that an object is in the path of the vehicle.

Abstract: A lighting panel includes a tile having a first side parallel to a principal plane of the lighting panel, a plurality of solid state lighting devices arranged on the first side of the tile and configured to emit light, a reflector sheet on the first side of the tile, and a brightness enhancement film on the reflector sheet. The reflector sheet may be arranged between the tile and the brightness enhancement film and the brightness enhancement film may be configured to increase the on-axis intensity of emitted light. A luminaire adapted for general illumination includes a lighting panel as described above, a current supply circuit configured to supply an on-state drive current to a string of lighting devices in response to a control signal, a photosensor arranged to receive light from one of the solid state lighting devices, and a control system configured to receive an output signal from the photosensor and to adjust the control signal responsive to the output signal of the photosensor.

Abstract: A light emitting assembly, a backlight module having the light emitting assembly, and a liquid crystal display (LCD) apparatus having the backlight module are provided. The light emitting assembly includes a rigid circuit board, a plurality of light emitting diode (LED) devices, and a flexible circuit board. The rigid circuit board has a plurality of external circuits isolated from one another. The LED devices are disposed on the rigid circuit board, and each of the external circuits is connected to a corresponding one of the LED devices. The flexible circuit board has a plurality of connecting lines, and each of the connecting lines is connected to at least two of the external circuits, so as to serially connect the LED devices that are connected to the external circuits.

Abstract: An illumination controller is provided. The illumination controller comprises a light sensor device having a first light sensor arrangement configured to sense light within a first spectral range including non-visible light and excluding a sub-range constituted by at least a major part of the visible light, and a second light sensor arrangement configured to sense light within a second spectral range including at least a part of said sub-range.

Abstract: A discharge lamp driving device includes a discharge lamp driving unit configured to supply driving current to a discharge lamp provided with a first electrode and a second electrode, and a controller configured to control the discharge lamp driving unit. The driving current includes a first AC period and a second AC period in which an AC current is supplied. The first AC period includes a plurality of consecutive first unit driving periods each of which is formed of a first polarity period and a second polarity period, a length of the first polarity period being larger than a length of the second polarity period. The second AC period includes a plurality of consecutive second unit driving periods each of which is formed of the first polarity period and the second polarity period, the length of the second polarity period being larger than the length of the first polarity period.

Abstract: The present invention relates to a method for controlling a lighting device in a daylight harvesting system. When a user tampers with a sensor, in order to decrease the light level light level measured and therefore increase the light intensity of the lighting device, the tampering is detected. Based on this tamper detection the light intensity of the lighting device is controlled based on a set value (e.g. 70% dimming).

Abstract: A combined concealed surveillance camera and photosensor control system is contained in an outer housing of predetermined configuration and dimensions to replace the existing light sensor or photosensor control unit of a public, commercial, or residential lighting fixture, replacing the function of the existing control unit in turning the lighting fixture on and off based on detected ambient light level, and also providing a concealed surveillance camera system drawing power from the lighting fixture power supply so that the camera is on continuously while the lighting fixture is turned on and off based on the detected ambient light level.