Abstract: An illuminance sensor setting device 5 includes: an illuminance sensor 51 that outputs a signal for switching a lighting apparatus 2, and a setting unit 52 to perform setting of the illuminance sensor 51. The illuminance sensor 51 and the setting unit 52 are provided separately from each other, and are connected to signal lines 6. The setting unit 52 has a configuration to set a sensor address of the sensor 51, a control address of the lighting apparatus 2, and an illuminance reference for switching the lighting apparatus 2. The setting unit 52 transmits to the signal line 6 the setting signal and the sensor address. Thus, even if the illuminance sensor 51 is provided on, for example, the ceiling in the vicinity of the lighting apparatus 2, the setting unit 52 can be provided at any place, such as a wall, where the setting unit 52 can be easily operated, and work for settings is facilitated.
Abstract: An LED lighting device includes a converter for converting a power source voltage into a DC voltage and outputting it to an LED unit; and a controller for controlling an output of the converter. The converter has a chopper circuit including a series circuit of an inductance element and a capacitor; a switching element connected to the inductance element in series and turned on/off by the controller; and a diode as discharging path of the inductance element during an OFF state of the switching element. The controller controls an on/off time of the switching element such that a current supplied to the LED unit during a specific time period after a lighting operation is started becomes smaller than a current supplied to the LED unit in a steady state by using a voltage generated in a secondary coil of the inductance coil as an operating voltage thereof.
Abstract: An LED lighting device includes a step-up chopper which includes a first switching element and increases an output voltage applied from a DC power supply, a step-down chopper which includes a second switching element and decreases the output voltage from the step-up chopper to apply the decreased output voltage to a light source unit having light emitting diodes, a controller which controls operations of the first and the second switching element, a current limiter which includes a current limiting element and a switch; and a voltage detection unit. The controller stops an operation of the first switching element when the voltage detection unit detects the voltage applied to the light source unit exceeding a predetermined voltage value, and the switch allows a current to flow through the path passing through the current limiting element when the operation of the first switching element is stopped.
Abstract: A semiconductor pressure sensor includes: a case; a pressure inlet port through which a measurement target fluid is introduced into the case; an atmosphere inlet port through which atmosphere is introduced; and a sensor chip configured to measure the pressure of the fluid with respect to atmospheric pressure. The pressure inlet port and the atmosphere inlet port are disposed on the same surface side of the case. The pressure inlet port is communicated with the inside of the case.
Abstract: On a front surface (one of opposite surfaces) 11a of a male-side connector 10, first guide projections 15 are provided, which have a projection height that is higher than columnar bumps (male-type terminal portions) 13. and on a back surface (other of the opposite surfaces) 21b of a female-side connector 20, hole portions 25 are provided, which have a size allowing slight movement of the first guide projections 15, wherein the columnar bumps 13 and the cross-like slits (female-type terminal portions) 23 are positioned with each other by the first guide projections 15 being inserted through the hole portions 25.
December 5, 2011
June 14, 2012
PANASONIC ELECTRIC WORKS CO., LTD.
Mituru IIDA, Hiroshi IWANO, Daisuke SATO
Abstract: An apparatus for making a three-dimensional object includes a table, a powdery layer-former that forms a powdery layer on the table, and an optical beam-irradiator that irradiates an optical beam on a predetermined region of the powdery layer to sinter the predetermined region of the powdery layer. A chamber for accommodating the table and the powdery layer-former and a lid for opening and closing an opening defined in the chamber at a location immediately above an optical beam-irradiating range are provided. The three-dimensional object is taken out from the chamber through the opening upon completion of the sintering, and the optical beam-irradiator is disposed at a position deviated from immediately above the optical beam-irradiating range to obliquely irradiate the optical beam on the powdery layer.
Abstract: An ophthalmic apparatus includes: a screen; a examination controller; a first image projection unit projecting a target image; a second image projection unit projecting a pointer image; a mirror reflecting the projections of the first and second image projection units to project the same onto the screen; and a pointer operation input unit through which the pointer position is inputted. The examination controller includes: a first image generation unit generating a target image; an image correction unit correcting the target image so that the target image does not look distorted on the screen; a calculation storage unit calculating the position of the pointer according to the input through the pointer operation input unit and storing the calculated position; a second image generation unit generating the image of the pointer; and an output unit presenting or outputting the target image and the position of the pointer.
Abstract: It comprises fixed terminal 42 provided with fixed contact 42a; movable armature 44 provided with movable contact 45; shaft 44 inserted in the movable armature; sealing container 40 holding the fixed terminal and housing the movable armature and the shaft therein in hermetically-sealed state; contact pressure spring 410 giving contact pressure between the movable contact and the fixed contact; return spring 411 urging the shaft to move away from the fixed contact; operation handle 1; shaft pressing piece 56 pressing, in accordance with the operation of the operation handle, the other end of main body of the shaft to move the shaft closer to the fixed contact; and electromagnetic tripping block 6 which makes the movable/fixed contacts open by taking the pressing means away from the other end of the main body of the shaft in case that anomalous current flows through the movable/fixed contacts when they are contacted.
Abstract: A mounting structure of chip comprises a substrate having a base, a chip on the upper surface of the base, and adhesive agents which bonds the base and the first chip. The adhesive agent is applied to the upper surface of the base. The chip has a rectangular shape to have a width and a length, and is bonded at its lower surface to the base. The adhesive agents comprises the first adhesive agent, the second adhesive agent, and the third adhesive agent which are disposed on the three spots of the upper surface of the base, respectively. The three spots on the base are located on vertexes of a triangle. The first chip is bonded to the base by only the first adhesive agent, the second adhesive agent, and the third adhesive agent.
Abstract: A method for producing a three-dimensionally shaped object, includes the steps of: (i) forming a solidified layer by irradiating a light beam on a specified portion of a powder layer placed on a shaping table to sinter or melt the specified portion; (ii) forming another solidified layer by placing a new powder layer on the solidified layer thus obtained, and irradiating the light beam on a specified portion of the new powder layer to sinter or melt the specified portion of the new powder layer; and (iii) repeating the step (ii) to produce a three-dimensionally shaped object. When performing the steps (i) to (iii) within a chamber, at least a part of an ambient gas in the chamber is exhausted from the chamber through a gas passage of a shaping tank.
Abstract: An illumination device includes a cover; a lamp including a light emitting unit; and a doppler sensor including a receiving unit, disposed on the same side as the lamp with respect to a first plane including a surface of the cover facing the lamp. In a cross section that intersects the receiving unit and is orthogonal to a central axis of the light emitting unit, “?” between a boundary line of a detectable range of the receiving unit close to the lamp and a normal to the first plane, “d” between the central axis and the first plane, “r” of the light emitting unit; “y” between the first plane and the receiving unit; and “x” between the receiving unit and a second plane that includes the central axis of the light emitting unit and is orthogonal to the first plane satisfy the following equation.
Abstract: An object of the present invention is to easily eliminate fumes inside a chamber, so as to improve a positional accuracy of irradiation with a light beam and a machining accuracy in a method for manufacturing a three-dimensional shaped object. A stacked-layers forming device 1 includes a powder layer forming unit 3, a light beam irradiating unit 4, a base 22 which is fixed and on which a powder layer 32 is formed, a lifting/lowering frame 34 which surrounds the circumference of the base 22 and is freely capable of being lifted and lowered, a cover frame 36 which has a window 36a allowing transmission of light beam in its top surface, and whose bottom surface is opened, and which is disposed on the lifting/lowering frame 34 to form a chamber C, and a gas tank 71 for supplying an ambient gas. The lifting/lowering frame 34 is lowered to reduce the volume of the chamber C, so as to discharge fumes generated inside the cover frame 36, which performs replacement with the ambient gas.
Abstract: A light emitting device includes a first solid light-emitting element including a first light source for emitting blue light and a first fluorescent body excited by the blue light from the first light source to convert the blue light to light having a peak at wavelength between 630 nm and 680 nm and a second solid light-emitting element including a second light source for emitting blue light and a second fluorescent body excited by the blue light from the second light source to convert the blue light to light having a peak at wavelength between 500 nm and 550 nm.
Abstract: A capacitive sensor includes a fixed electrode and a movable electrode that is movably supported by an anchor portion through a beam portion. The fixed electrode and the movable electrode are opposed to each other with a gap interposed therebetween, thereby constituting a detecting unit. A capacitance suitable for a size of the gap is detected to detect a predetermined physical value. At least one of an end of the beam portion connected to the anchor portion and an end of the beam portion connected to the movable electrode is provided with a stress moderating unit that moderates a stress.
Abstract: An illumination apparatus includes a light source unit having solid light-emitting elements and a sensor unit having a wave transmission portion for transmitting energy waves of specified frequency and a wave reception portion for receiving the energy waves reflected from an object. The sensor unit outputs a detection signal by detecting the object within a detection range based on the difference in frequency between the transmitted and received energy waves. The illumination apparatus further includes a control unit responsive to the detection signal from the sensor unit for performing a control operation to turn on the light source unit, and a power source unit for supplying electric power to the light source unit. The power source unit is arranged outside the detection range of the sensor unit. The sensor unit is provided on the opposite side to the direction of light irradiated from the light source unit.
Abstract: The encryption key distribution system includes a node A, a node B, and an authentication server S. Upon receiving a first nonce created by the node A and a second nonce created by the node B, the authentication server S creates a session key. The authentication server S sends a first message authentication code value and a first encryption message to the node A. The first encryption message is created by encrypting the first nonce, the session key, and first additional information with a first secret key. The authentication server S sends a second message authentication code value and a second encryption message to the node B. The second encryption message is created by encrypting the second nonce, the session key, and second additional information with a second secret key. The node A decrypts the first encryption message with the first secret key, thereby obtaining the session key and the first additional information.
Abstract: A light emitting module device includes: a power line through which power is supplied to light emitting modules; and a signal generation circuit which generates a control signal. The power line is shared by a plurality of the light emitting modules, and has switches and switches which turn on or off current conduction to the light emitting modules, through open/close operations. The signal generation circuit individually controls the switches and the switches. The open/close operations include a light-emission period in which the light emitting module emits light; and an extinction period in which the light emitting module is extinguished, and if there is a control signal to be transmitted to the light emitting module, the control signal is superimposed onto supply power. Since a control signal is superimposed onto supply power to each light emitting module, the light emitting modules can be individually controlled.
Abstract: There is provided a lighting device usable in a space together with 3D glasses having shutters which alternately block respective translucent surfaces of a pair of lenses at one of a plurality of shutter frequencies. The lighting device includes: a lighting unit which outputs a direct current to a light source; and a dimming control unit which turns on/off supply of the direct current to the light source at a predetermined PWM frequency. Further, the PWM frequency is an integer multiple of the least common multiple of the plurality of shutter frequencies.
Abstract: A communication system has a communication control unit, communication terminal units and communication units. The communication control unit and the communication terminal units communicate according to a first protocol. The communication units mutually communicate according to a second protocol. A specific communication unit of the communication units has a data analyzer and a data transmitter. The data analyzer judges whether or not second monitoring information represents a steady state. The data transmitter transmits the control information corresponding to the second monitoring information to at least one related second communication terminal unit through the communication control unit according to the first protocol if the second monitoring information represents an unsteady state. Thereby, the load connected to the second communication terminal unit is controlled.
Abstract: In a generating method and a generator of mist or fine-bubble, with a simple and small configuration, application into a wide range kind of liquid is enabled, and generating stably the mist or the fine-bubbles or both is enabled. The generator is provided with a piezoelectric substrate which equips two or more comb-like electrodes on a surface and arranged so that the surface may intersect the mutual interface of the gas and the liquid and a part of piezoelectric substrate is put in a liquid, and a surface acoustic wave excited on the surface with the electrode is made to propagate along the surface so that may exist in the upper and lower sides of an interface. The surface acoustic wave generates mist in the gas side which is above the interface, and generates fine-bubbles in the liquid side which is below the interface.