Abstract: A multi-DOF piezoelectric actuator that may be constructed with sizes of about or less than one millimetre. The multi-DOF piezoelectric actuator is capable of generating motion of a rotor element or slider element, about or in, each of the three fundamental axes of three dimensional space. The actuator can comprise a piezoelectric element (10) having one or more sidefaces, a first endface, and a second endface, wherein at least one or more sidefaces comprise a plurality of separate sideface electrodes (11) and at least one of the first or second endfaces comprise an endface electrode (12). A transducer element (30,40) and isolation structure (5) for use in a piezoelectric actuator are also described.

Abstract: Disclosed herein is an ultrasonic sensor including: a case including an inner space formed therein and including an electrode layer formed on an inner side wall surface thereof; a piezoelectric element seated on the electrode layer on a lower surface of the case, configured in a stack type, and including anode and cathode terminals formed on an outer peripheral surface thereof; a sound absorbing material fixed to an upper portion of the piezoelectric element; and first and second lead wires led from the outside of the case and electrically connected to the electrode layer formed on the inner side wall surface of the case.

Abstract: A vibration power generation device comprising: a frame section; a weight section, a flexure section; and a power generation section. The weight section is provided inside the frame section. The flexure section is joined between the frame section and the weight section, and is configured to bend in response to a vibration of the weight section. The power generation section is composed of a laminate on one surface of the flexure section. The laminate has a lower electrode, a piezoelectric layer and an upper electrode which are laminated in this order from the abovementioned one surface. The power generation section is configured to generate an alternating-current voltage in response to an oscillation of the weight section. A resonance frequency adjustment means is provided between the frame section and the weight section.

Abstract: A manufacturing method of a piezoelectric film element includes forming a piezoelectric film including a lead-free alkali niobate based compound having a perovskite structure represented by a compositional formula of (K1-xNax)NbO3 on a substrate, and dry-etching the piezoelectric film by using a low-pressure plasma including a fluorine system reactive gas.

Abstract: A piezo electrical component has a stack of piezo electrical layers arranged over each other and electrode layers arranged therebetween. The stack has at least one first piezo electrical layer having a first piezo electrical charge constant and, directly adjacent thereto, at least one second piezo electrical layer having a second piezo electrical charge constant. The piezo electrical charge constant describes an expansion of the piezo electrical layer perpendicular to an electrical field at a voltage 6 applied to the electrode layers. The first piezo electrical charge constant is different from the second piezo electrical charge constant.

Abstract: A ZnSnO3/ZnO nanowire, a method of forming a ZnSnO3/ZnO nanowire, a nanogenerator including a ZnSnO3/ZnO nanowire, a method of forming a ZnSnO3 nanowire, and a nanogenerator including a ZnSnO3 nanowire are provided. The ZnSnO3/ZnO nanowire includes a core and a shell that surrounds the core, wherein the core includes ZnSnO3 and the shell includes ZnO.

Abstract: An electric taxi system (ETS) for an aircraft has an electric motor enclosed within a landing gear strut. A stator winding of the motor is attached to a lower structural element of the strut.

Abstract: An aircraft power generating assembly having a mechanical gear transmission, and an electric machine integrated in the mechanical transmission; the electric machine having a stator connected directly to a fixed frame of the mechanical transmission, and a rotor surrounding and rotated by a rotary shaft of the mechanical transmission; and the opposite ends of the rotary shaft being connected to respective further rotary input/output shafts.

Abstract: The brushless electric machine includes a first drive member (30U) having a plurality of permanent magnets (32U); a second drive member (10) having a plurality of electromagnetic coils and capable of movement relative to the first drive member (30U); and a third drive member (30L) disposed at the opposite side from the first drive member (30U) with the second drive member (10) therebetween. The second drive member (10) has magnetic sensors (40A, 40B) for detecting the relative position of the first and second drive members. The third drive member (30L) has at locations facing the permanent magnets of the first drive member (30U) a plurality of magnetic field strengthening members (32L) for strengthening the magnetic field at the location of the second drive member (10) in conjunction with the permanent magnets.

Abstract: The purpose of the invention is to provide an inverter-driven dynamo electric machine and system for the same having high reliability and high efficiency such that even in the case of inverter pulse voltages having high dv/dt, generation of shaft voltages and generation of shaft currents causing electric corrosion of a bearing with the generation of the shaft voltages are suppressed, thereby keeping the bearing free of electric corrosion. The purpose of the invention is achieved by the following method. That is, the purpose is achieved by an inverter-driven dynamo electric machine and system for the same including at least one machine support bearing which supports a shaft of a rotor, and one electric discharge bearing which discharges the voltage generated in the shaft of the rotor, wherein a bearing having a lower dielectric breakdown voltage between an inner ring and an outer ring than that of the machine support bearing is used as the electric discharge bearing.

Abstract: The present invention discloses a driving machine with a detachable battery for electric garage doors and electric rolling doors, which is electrically driven to open or close an electric garage door or electric rolling door, and which comprises a driving device and a spare power device. The spare power device can be detachably assembled to and electrically connected with the driving device. The spare power device has a rechargeable battery, which provides the driving device with power required to open or close the electric garage door or electric rolling door in electric outage.

Abstract: A spice rack (10) comprising a housing (14) and a plurality of receptacles (12) for holding spices. A plurality of receptacle holders (16) are provided within the housing (14) each for receiving one of the receptacles (12). A selector is provided such that selecting one of the receptacle holders (16) from the selector moves a moveable access opening (56) to be adjacent the selected receptacle holder (16) such that the receptacle (12) in the selected receptacle holder (16) can be removed from the housing (14).

Abstract: An enclosure in the form of a box having a base, four sidewalls, and an open top face which may be closed by a cover plate or lid over its open top for covering components stored in the enclosure. The enclosure may be stiffened by providing a removable or permanent stiffening ring around the inside surface of the open top. This stiffening ring may also provide locations for attachment of components or mounting tracks. The enclosure may also include vertical mounting stiffeners that act to further increase the stiffness of the enclosure while also acting as mounting tracks for direct or indirect (through separate mounting brackets) attachment of components. The vertical mounting stiffeners may include a plurality of holes for said attachment.

Abstract: A dishwasher that enables a user to adjust a load of a spring depending on material and weight of a cover that is attached to a door of the dishwasher. The dishwasher includes a housing having a bottom, a rear, and side covers, a door rotatably installed on a front surface of the housing, a door hinge installed onto each lower end of the door while being rotatably coupled to the housing, a spring configured to adjust a rotation of the door, and an apparatus of adjusting the spring configured to adjust a load of the spring. The apparatus includes a movable bracket connected to the spring, an adjustment member which enables the movable bracket to move up and down, and a support bracket configured to support the adjustment member. A position verification hole is perforated through the housing such that the apparatus is checked from outside the housing.

Abstract: A storage drawer (1) for banknotes and valuables adapted to be positioned in the vicinity of a cash register and comprising: a storage structure (2) defining a holding volume; a first external opening (2a) formed in said storage structure (2) and suitable to enable access to the holding volume and being adapted to allow insertion of a removable tray (3) in said holding volume; an additional housing (6) fastened to said storage structure (2) and adapted to delimit a portion of the holding volume, said additional housing (6) defining a separate collection chamber (6a); and insertion means (7) formed at said additional housing (6) and adapted to enable insertion of valuables and banknotes into the separate collection chamber (6a).

Abstract: A multi-function printer including a body, a door, a carriage, and a linkage is provided. The door is assembled to the body and capable of being opened or closed relative to the body. The carriage is movably disposed on the body. The linkage disposed in the body is configured between the carriage and the door. The linkage has a driven end and a driving end. The driven end is located on a moving path of the carriage, and the door is located on a moving path of the driving end. When the carriage moves to a pushing segment, the carriage drives the driven end of the linkage, such that the driving end of the linkage pushes the door open.

Abstract: The invention relates to an ejector (100) for ejecting a movable furniture part (102) from a closed end position in or on a furniture body (101), comprising an ejection lever (1) that can be driven by an electrical drive unit, in particular an electric motor, wherein the ejection lever (1) has a first ejection lever part (11) and a second ejection lever part (12) that can be moved relative to the first ejection lever part, wherein an adjusting device (2) is provided, which causes the length of the ejection lever (1) to change during the ejection process as a result of the two ejection lever parts (11, 12) sliding relative to each other.

Abstract: A multi-function printer including a body, a door, a feeding module, a transmission module, and a cam assembly is provided. The door is assembled to the body being opened or closed relative to the body. The feeding module and the transmission module are disposed in the body. The feeding module has a driving gear. The transmission module has a swim arm with an end connected to the driving gear. The cam assembly is movably disposed in the body and configured between the door and the transmission module. The cam assembly is in a moving range of the swim arm, and the door is in a moving range of the cam assembly. When the driving gear rotates in a direction, the other end of the swim arm is engaged to the cam assembly, and drives the cam assembly to push the door open.

Abstract: A hinge is mounted between a cover and a base of a portable device and has a first connecting element, a second connecting element and a pintle. The first connecting element is attached securely to the cover. The second connecting element is attached securely to the base. The pintle is hollow and is mounted through the first and second connecting elements. The wires of the portable device are mounted through the hollow pintle so that the rooms for the wires and for the pintle are overlapped. Therefore, the room occupied by the wires is decreased and the volume of the portable device is also reduced.

Abstract: Disclosed is a damper and an opening/closing apparatus and a financial device using the same. The damper has first and second bodies mounted on fixed and rotatable objects, respectively, to perform a damping action during an end of the rotation range of opening/closing the rotatable object, abrupt operation of which is thus prevented. The first body has a damping space filled with a damping material and fixed and movable friction plates are installed in the damping space so that the movable friction plate rotates together with a rotation center shaft in a specific range. First and second interlock surfaces are positioned on opposite sides of the rotation center shaft, and first and second interlock stages are formed at a predetermined angle on both stages of the inner surface of a shaft through-hole of the movable friction plate so as to selectively contact the interlock surfaces, respectively.

Abstract: An apparatus includes an extendable tray that can be moved into a retracted position and an extended position away from a recess surface, and a cover with a surface positioned in conjunction with the extendable tray so as to bridge a gap between the recess surface and the tray when the tray is in the extended position to provide a uniform appearance. Also included is a latch apparatus that includes a latch arm that engages a stop to limit horizontal translation of the tray past an extended position, a handle that, when depressed, disengages the latch arm, enabling removal of the tray past the extended position, a pivot that provides a rotational axis by which the handle is attached to the tray, and a spring arm that controls a pivot angle of the handle, ensuring that latch arm engages the stop. A refrigerator incorporating the structures is also disclosed.

Abstract: A system and method of maximizing space inside a storage compartment of a refrigerator is provided. The storage compartment has a storage space defined by a rear wall, a side wall, and a standard refrigerator shelf. An auxiliary shelving system is provided, having a first support wall and a second support wall, and a plurality of auxiliary shelves. Each support wall has a plurality of spaced apart feet, the support walls being perpendicularly joined together to form an L-shaped configuration. The first support wall is positioned adjacent the rear wall and the second support wall is positioned adjacent the side wall, and with the feet resting on the standard refrigerator shelf. An edge of each auxiliary shelf is removably secured to a portion of either the first support wall or the second support wall so that the auxiliary shelf extends into the storage space of the storage compartment.

Abstract: A light bulb includes a light guide, light source, and housing. The light guide is configured as an open-ended hollow body surrounding an internal volume and defining a longitudinal axis. The light guide has inner and outer major surfaces. The light source is configured to edge light the light guide. The housing is at one end of the light guide. In one embodiment, fins extend from the housing adjacent the outer major surface, each fin separated from the outer major surface by an air gap to allow air flow between the fin and outer major surface. In another embodiment, a heat sink is disposed in the internal volume and configured as a hollow body with a branched cross section. Each branch extends outward from a common center and defines an air flow channel that terminates in an orifice aligned with a respective through-slot of the light guide.

Abstract: A planar electrode for the DBD plasma treatment of a surface comprises a metal casing (8) raised to a high voltage and provided with an active part (2) intended to be placed in parallel with a surface to be treated (27). This active part (2) is covered on the outside by a sheet (4) of dielectric material to which it is fixed by a polymer layer (6). The internal face of the active part (2) forms with the metal casing (8) a heat exchanger connected to a secondary cooling circuit (34) through which a refrigerant (10) circulates.

Abstract: A spark plug for an internal combustion engine is provided which is equipped with an inward top end protrusion. The inward top end protrusion extends inwardly from a top end of a cylindrical housing within which a porcelain insulator is disposed. The porcelain insulator has a center electrode disposed therein. The inward top end protrusion is at least partially located to be closer to the top of the spark plug than a top end of the porcelain insulator is in an axial direction of the spark plug. This enhances the strength of an electric field surrounding the center electrode, which facilitates the ease with which an electron is emitted by the center electrode and thus permits an initial required voltage at the spark plug to be decreased, thereby resulting in an increase in service life of the spark plug.

Abstract: A spark plug includes a center electrode, a ground electrode, and a noble metal tip. The noble metal tip is joined to an object member of at least one of two electrodes via a fusion zone. A projected overlap region of the noble metal tip and the fusion zone accounts for 70% or more of a projected region of the noble metal tip. The object member contains at least Si out of Al and Si such that the amount of Si is 0.4% by mass or higher and such that the total amount of Al and Si is 0.5% by mass. Multi-fusion spots exist on the surface of the fusion zone. Segments of a baseline which pass through the respective multi-fusion spots have a total length of a predetermined percentage of the length of the baseline. Joining strength to the noble metal tip can thereby be greatly improved when the member to be joined contains Si.

Abstract: A device is provided having a flow passage with at least one surface and at least one electrode pair positioned thereon for effecting fluid flow through the flow passage. When at least one electrode of an electrode pair of the at least one electrode pair is powered, a sheath region is generated in the flow passage, wherein the sheath region has a high electric field relative to the remainder of the flow passage. In an embodiment, one electrode of the electrode pair is separated from the other electrode of the electrode pair by a horizontal, vertical, depth, and/or total distance of about 1 microns.

Abstract: In an electron gun for use in a TWT, klystron, linear accelerator or other electron device, an electron gun header assembly and an input body assembly are coupled using a flexible bellows that allows the distance between the cathode and anode to be varied. As such, the perveance of the electron gun can be tuned, and the cathode magnetic field optimized for efficient operation. In addition, an external magnetic shield is adapted to be translated along the axial dimension of the electron gun to further optimize the cathode magnetic field and focusing characteristics to achieve improved electron gun performance.

Abstract: A display includes: a light emitting layer; a reflective section reflecting light, that enters through the light emitting layer, to a display surface; an absorption-type polarizing plate provided on the display surface; a retardation film provided between the light emitting layer and the absorption-type polarizing plate; a reflection-type polarizing plate provided between the retardation film and the absorption-type polarizing plate, and reflecting, among light transmitted by the retardation film, light in a predetermined light-axis direction; and an outside-light reflection suppression layer provided between the light emitting layer and the reflection-type polarizing plate, and absorbing part of outside light.

Abstract: The invention relates to a light source for generating light having a spectral emittance in at least a part of the range of 380 nm to 680 nm. The light has a spectral power distribution E(?) as a function of the wave-length ? over a first range of 600 nm<=?<=680 nm, a second range of 505 nm<=?<=600 nm, and a third range of 380 nm<=?<=505 nm. A first ratio of the integral power distribution over said first range to that of a range of 380 nm<=?<=680 nm is given by the relation: Formula (I) wherein 0.65<=Pl<=0.95, A second ratio of the integral power distribution over said second range to that of a range of 380 nm<=?<=680 nm is given by the relation: Formula (II) wherein Pm>=0.08, A third ratio of the integral power distribution over said third range to that of a range of 380 nm<=?<=680 nm is given by the relation: Formula (III) wherein Ps>=0.03 or Ps>=0.015 if Pl>=0.

Abstract: An organic light-emitting device includes a first pixel electrode disposed on a substrate, a first bank covering an edge of the first pixel electrode, the first bank having a first opening exposing a portion of the first pixel electrode, a second pixel electrode covering the exposed portion of the first pixel electrode through the first opening, the second pixel electrode covering at least a portion of the first bank, an organic light-emitting layer covering the second pixel electrode, and an opposite electrode covering the organic light-emitting layer.

Abstract: Provided is an organic EL element in which emission efficiency is improved by suppressing a loss of excitation energy by a surface plasmon generated on an electrode surface. A hole transport layer is formed of a material having a refractive index of 1.20 or more and 1.65 or less at a maximum peak wavelength of a spectrum of light emitted by a light-emitting layer.

Abstract: A process for producing a color conversion filter uses an ink jet recording method, which can form a color conversion layer at a desired position without the need to separately form partition walls, and a process for producing an organic EL display. The process for producing a color conversion filter includes forming a black matrix having a plurality of opening parts on a transparent substrate, forming at least two types of color filter layers independently of each other on a black matrix to which dissimilar color filter layers are adjacent, to form a partition wall, at least two of the color filter layers being superimposed on top of each other, and forming a color conversion layer by ink jet recording onto at least one of the color filter layers.

Abstract: An organic electroluminescent device with new protective packaging. The package has a substantially transparent energy blocking layer disposed near the outer surface of the device. The energy blocking layer is configured to protect the electroluminescent device and packaging from ultraviolet, infrared, and other electromagnetic radiation. The energy blocking layer can also be configured to have a limiting oxygen index (LOI) of greater than twenty-one to reduce combustibility of the device and can optionally contain hydrophobic properties to help protect the device from moisture.

Abstract: The invention describes a mercury-free high-intensity gas-discharge lamp (1) comprising a discharge vessel (5) enclosing a fill gas in a discharge chamber (2) and comprising a pair of electrodes (3, 4) extending into the discharge chamber (2), for which lamp (1) the fill gas is derived from a salt fill introduced into the discharge chamber (2) prior to sealing, which salt fill is free of scandium and includes a halide composition comprising a sodium halide to a proportion of at least 65 wt % and at most 97.2 wt %,a thallium halide to a proportion of at least 2 wt % and at most 25 wt %, and an indium halide to a proportion of at least 0.5 wt % and at most 25 wt %. Eliminating the highly reactive scandium from the fill gas significantly improves lumen maintenance.

Abstract: A lamp device and a light source module are provided. The lamp device includes a lamp body and a coil connecting tube. The lamp body has an end portion and a lead wire extends from the end portion. The coil connecting tube is disposed corresponding to the end portion of the lamp body and electrically connecting to the lead wire for power supply purpose. The coil connecting tube winds about an axial direction of the lamp body and is capable of stretching or compressing along the axial direction. The light source module includes the lamp device and a lamp connector which has a power source portion being coupled to the coil connecting tube for power supply.

Abstract: To provide both a photodetecting element and a photodetecting device which can prevent generating of a plurality of current paths, and can detect with stability and high sensitivity regardless of a surface state instability of an optical absorption layer. The photodetecting element includes an optically transparent substrate, an optical absorption layer, an electrode, an electrode, an adhesive layer, an insulating film, and a package. The optical absorption layer is formed on the optically transparent substrate, and a part of each the electrodes is embedded in the optical absorption layer. The photodetecting unit is bonded junction down with the adhesive layer on the package. The optical absorption layer absorbs light of a specified wavelength selectively to be converted into an electric signal. The light to be measured is irradiated from a back side surface of the optically transparent substrate.

Abstract: A device for supplying a plurality of LED units with power includes a common DC/DC converter which delivers a regulated output voltage and to which a plurality of sections are connected, each having a buck converter and an LED unit connected thereto, and means for regulating or setting the section currents to be supplied to the LED units. In order to simplify the device, the means for regulating or setting the section currents are formed by a central, common processor, which is supplied with actual values in keeping with the individual section currents and connected to corresponding control inputs of the respective buck converters for applying control values calculated on the basis of the actual values.

Abstract: Disclosed is a display device which includes a display panel, an LED bar configured to output a light to the display panel, and a source printed circuit board including a driver circuit driving the display panel and an LED driver circuit driving the LED bar, wherein the LED bar and the LED driver circuit are connected via a socket disposed at the source printed circuit board.

Abstract: An illumination device includes a light source in which a plurality of light emitting elements are arranged, a luminous intensity controller configured to control luminous intensities of the plurality of light emitting elements separately in groups of one or more light emitting elements, and a predetermined correction table indicating temperature distribution characteristics corresponding to position information of the plurality of light emitting elements in the light source. The luminous intensity controller controls the luminous intensities of the plurality of light emitting elements corresponding to the position information based on the temperature distribution characteristics of the correction table.

Abstract: The present invention relates to an LED emitting device and a driving method thereof. The LED emitting device receives an input voltage and supplies a power supply voltage needed for operating an LED channel according to a switching operation of a power switch. The LED emitting device controls the power supply and also controls a load switch between the LED channel and an output voltage. The LED emitting device determines the LED channel to be short circuited when the output voltage is reduced to a predetermined threshold voltage during a predetermined short circuit sense period starting from the time when the output voltage reaches a regulated voltage before the LED channel is dimmed. During the short circuit sense period, the power supply is stopped and the load switch is turned on.

Abstract: The present invention is to provide an electronic ballast connected in parallel to two filaments of a fluorescent light tube, which comprises a controller for generating two output signals, two power switches being switched according to the output signals, a resonant circuit oscillating according to switching of the power switches and thereby causing a resonant capacitor thereof to generate a voltage, a voltage sensor connected in series to the resonant capacitor and connected in parallel between the two filaments so as to sense an AC voltage proportional to a voltage across the fluorescent light tube, and a regulator connected separately to the voltage sensor and controller so as to convert the AC voltage into a DC voltage and deliver the DC voltage to the controller. Upon determining that the DC voltage exceeds a preset voltage level, the controller generates an interruption control signal for immediately stopping operation of the controller.

Abstract: A utility light is provided. The utility light comprises a first array of light sources having a first color facing in a first direction, a second array of light sources having a second color facing in a second direction that substantially opposes the first direction, a motion sensor, and an electronic controller to receive a rotation motion input from the motion sensor, wherein the rotation motion input provides an indication of rotation of the utility light about an axis substantially vertical to the surface of the earth, to determine a first state based on the rotation motion input, to operate the first array of light sources in the first state, to determine a second state based on the rotation motion input, and to operate the second array of light sources in the second state.

Abstract: The present invention is a remote controlled electronic ballast, which preferably includes: a ballast, counter, scheduling timer, remote control, digital display screen, ignition control, and diagnostic circuitry. The counter preferably tracks the total hours in which the ballast has operated. This count may be displayed, if requested on the digital display screen. The scheduling timer preferably triggers the ballast to ignite and/or drive the lamp at various time intervals. The remote control preferably allows the user to wirelessly: (1) set the wattage output; (2) control the timer settings; (3) display the count; and/or (4) turn the lamp on or off. The display preferably provides visual information of the ballast's setting. The ignition control preferably allows the user to start up multiple lamps in a series to prevent the breaker from being tripped. The diagnostic and sensory circuitry preferably performs a pre-ignition check for fault conditions.

Abstract: A building lighting control system includes a central building server, distributed zone controllers, and light sensors and control units in each zone. Using occupant lighting preferences, occupancy state, and light levels, each zone controller computes a utility curve which represents the relationship between energy use and service level in the zone. The building server zone receives utility curves from all the zones and allocates energy units to the zones based on the utility curves using a utility-based trading algorithm in order to optimize service levels with minimal energy. Each zone controller then distributes energy to lights in its zone based on energy units allocated to the zone by the building server and based also on influence matrices representing the influences of the lights in the zone upon the sensors in the zone. The building server may also compute and output long-term operational information of the building.

Abstract: A low voltage control system includes a controller having a plurality of switched power lines and a plurality of DC lighting loads. Each DC lighting load includes at least one DC lighting element. Each DC lighting load has an associated switch downstream from the controller that selectively connects the at least one DC lighting element to one of the plurality of switched power lines. At least one first input device includes at least one of an occupancy sensor, a light intensity sensor, or a programmable digital timer. The controller selectively powers the switched power lines in response to sensor data received from the first input device or commands received from at least one wired or wireless switch in communication with the controller.

Abstract: In a single lighting device including a large number of light-emitting elements (LEEs), the LEEs are divided into separately powered groups, and different combinations of the groups are fully energized to achieve the desired overall brightness. In some embodiments, the number of LEEs in each group has a binary relationship to the other groups. The resolution of the dimming is the brightness of the smallest group. In one example of five binary weighted groups of LEEs, 32 brightness levels can be achieved while the LEEs in the energized groups are fully ON. Thus, since there is no high frequency switching, there is substantially no power dissipation by the dimming control system, and there is limited noise or EMI created. The dimming control can be easily implemented with a logic circuit controlling a transistor switch for each group.

Abstract: The invention describes a method of driving an arc-discharge lamp (1), which method comprises the steps of detecting a mechanically induced fluctuation in luminous flux of the lamp (1) occurring as a result of a physical displacement of the discharge arc (2), determining a characteristic (43, 51, 63) of the mechanically induced fluctuation in luminous flux of the lamp (1), and adjusting the lamp power on the basis of the determined characteristic (43, 51, 63) to suppress the mechanically induced fluctuation in luminous flux of the lamp (1).

Abstract: A system and method for streetlight control is provided. A lamp sensor inside a reflector of the streetlight is utilized to detect the output of a lamp of the streetlight. During daytime periods when the lamp is OFF, the lamp sensor is utilized to act as a day/night sensor by detecting ambient light near the lamp. When the ambient light level falls below a sufficient level indicative that night is approaching the lamp is turned ON and the lamp sensor utilized to detect the lamp output of the streetlight.

Abstract: A light-emitting diode (LED) lamp includes a number of different color LEDs that can be turned on and off in different combinations using an external switch operable by a user. A user or a controller can adjust the color temperature of light output by the lamp. The color temperature change may be a user preference and can compensate for decreased phosphor efficiency over time.