Abstract: A droplet sensor has an optical cover with a curved surface that forms a part of a spheroid, a light source positioned at a first focal point of an ellipse, the first focal point facing the curved surface, and a photodetector positioned at a second focal point of the ellipse. The ellipse has an eccentricity determined such that the curved surface has an effective detection area that satisfies conditions for total internal reflection at an interface with a gas and that does not satisfy the conditions for total internal reflection at an interface with a liquid.

Abstract: The plug shell of the electrical connector includes the accommodation portion for accommodating the contact pin and the housing that holds the contact pin, the insertion port for inserting the contact pin and the housing into the accommodation portion, the lid member for closing the insertion port, and the hold mechanism for holding the lid member. The hold mechanism includes the pedestal, on which the lid member is placed, and the pair of hold pieces, which hold the lid member on the pedestal by pressing. The pair of hold pieces press the end portions of the lid member toward the pedestal, so that thereby a stress that urges the end portions to become distant from the pedestal is generated in the lid member.

Abstract: The driving unit includes: a first contact portion and a second contact portion that move relatively to each other while making contact with each other during driving; in which the second contact portion includes a coating layer at a contact face with the first contact portion, and the first contact portion and the second contact portion generate heat along with relative movement to vaporize a worn-away part of the coating layer.

Abstract: A lens driving device includes a first holder configured to hold a lens section, a second holder provided around a lens holder, a support member that elastically supports the first holder with respect to the second holder, and an actuator that includes a coil with a winding so arranged on the first holder as to surround the lens section, and a magnet so provided on the second holder as to face the coil, and is configured to move the first holder with respect to the second holder in a direction of an optical axis. An end portion of the winding is provided with an upright terminal that is set upright with respect to a winding plane of the winding and electrically connected to the support member with a fixing material. The first holder includes a terminal positioning part that internally accepts the upright terminal.

Abstract: A power supply semiconductor IC includes: an output transistor connected between a voltage-input terminal and a voltage-output terminal; a control circuit that controls the output transistor based on a feedback voltage of an output voltage; a current-limit circuit that limits an output current of the output transistor such that the output current is not equal to or greater than a current limit; a first transistor constituting a current-mirror circuit with the output transistor; a short-circuit-fault detection circuit that detects a short circuit of the voltage-output terminal based on a voltage across a resistor connected in series to the first transistor; and a first output terminal that outputs a detection result of the short-circuit-fault detection circuit. The current limit is within a detection range of the short-circuit-fault detection circuit. The short-circuit-fault detection circuit detects a short circuit of the voltage-output terminal even while the current limit circuit limits the output current.

Abstract: The push switch 1 includes a case 2, a pair of contacts 3 and 4, a movable contact 5, a cap 7 covering the case 2 from the upper side, and a cover 8 pressing the cap 7 from the upper side. The cover 8 includes a top plate 81 and a pair of extending portions 83 extending downward from opposite sides of the top plate 81. Each of the extending portions 83 of the cover 8 has a pair of leg portions 831 extending downward and a bridge portion 832 connecting the pair of leg portions 831. The bridge portion 832 has a pair of inclined portions 8321 formed at the lower end portion of the bridge portion 832 and inclined outward, and a cutout portion 8322 formed between the pair of inclined portions 8321.

Abstract: A power supply semiconductor integrated circuit includes an output transistor, a control circuit, a first-fault detection circuit, a second-fault detection circuit, a delay circuit, and a latch circuit. The output transistor is connected between a voltage-input terminal to which a DC voltage is input and a voltage-output terminal. The control circuit controls the output transistor. The first-fault detection circuit detects a first fault. The second-fault detection circuit detects a second fault different from the first fault. The delay circuit delays an output of the first-fault detection circuit and an output of the second-fault detection circuit. The latch circuit captures and holds an output of the delay circuit. The delay circuit includes: a constant current source for charging a delay capacitor; a discharge switch for discharging the delay capacitor; and a voltage comparator circuit that compares a charge voltage across the delay capacitor and a predetermined voltage.

Abstract: A current detecting circuit includes a first switching element, a second switching element, and a third switching element electrically coupled in series with the first switching element. An output side of the third switching element is electrically coupled to an output terminal. The current detecting circuit includes a current amplifier configured to detect a difference between a first output voltage of the first switching element and a second output voltage of the second switching element. The current amplifier outputs a relative current to be used for detecting an output current that flows out from the output terminal. A ratio of resistance associated with the first switching element to resistance associated with the second switching element is n:1.

Abstract: An antenna device installed in a vehicle includes a stacked dipole antenna unit. The stacked dipole antenna unit has a plurality of dipole antennas that are arranged parallel to a plane perpendicular to a front-back direction of the vehicle.

Abstract: A control system includes a secondary battery protection apparatus and a device. The secondary battery protection apparatus includes one or more monitoring terminals each provided in a path different from power paths, each monitoring terminal being operable for monitoring a potential at a negative electrode of a given secondary battery cell among a plurality of the secondary battery cells. The secondary battery protection apparatus includes one or more internal switches each of which is provided in an internal line between the negative electrode of a given secondary battery cell and a given monitoring terminal. The device includes a balance control circuit that adjusts, based on potentials monitored by the monitoring terminals, a current flowing into a line path that includes a corresponding internal line. The balance control circuit controls balance among the cell voltages for the secondary battery cells, based on the adjusted current.

Abstract: Disclosed is a semiconductor integrated circuit for a regulator for forming a low current consumption type DC power supply device. The semiconductor integrated circuit includes an output transistor, a control circuit, an operation control transistor and a soft start circuit. The output transistor is connected between an output terminal and a voltage input terminal to which a DC voltage is input. The control circuit controls the output transistor according to a feedback voltage of an output. The operation control transistor controls an operation state of the control circuit. The soft start circuit gradually changes a voltage applied to a control terminal of the operation control transistor and delays activation of the control circuit at a time of applying a power supply voltage to the voltage input terminal.

Abstract: A ghost removal method includes steps of detecting, estimating and excluding. In the detecting, a position and a relative speed of a target moving object, and a position of a surrounding stationary object are detected with radio waves. In the estimating, a position and a relative speed of a ghost by the target moving object are estimated based on the detected position and relative speed of the target moving object and the position of the surrounding stationary object. In the excluding, a detected point where the estimated position and the relative speed of the ghost are detected is excluded from a candidate detection point of a moving object which is detected with radio waves.

Abstract: A secondary battery protection circuit for protecting a secondary battery, including: a low-voltage detecting circuit configured to detect a voltage across the secondary battery that is lower than a second voltage for low voltage detection, the second voltage being set to be lower than a first voltage for overdischarge detection; and a switching circuit configured to cause a gate of a charge control NMOS transistor to be fixed at a potential at a high side power supply terminal, upon detecting, by the low-voltage detecting circuit, that the voltage across the secondary battery is lower than the second voltage for low voltage detection.

Abstract: Provided are a lens driving device, a camera module, and a camera mounting device with which miniaturization and weight reduction can be achieved. This lens driving device is provided with: a stationary part; and a movable part configured to be capable of holding a lens part and movably connected to the stationary part, wherein the stationary part has a flat plate-like base, the base has a thick part and a thin part having a smaller thickness than the thick part, and a reinforcing plate is embedded into the thin part. Specifically, the reinforcing plate is formed of a metal material and is embedded into the resin base by insert-molding.

Abstract: A detection system 1 contains a sensing device 10 including a vibration unit 11 for applying vibration to the inspection target 100, the vibration unit 11 attached to the inspection target 100, a driving circuit 12 for supplying an electric signal to the vibration unit 11 for driving the vibration unit 11 and a sensor 13 for detecting vibration of the inspection target 100 caused by the vibration applied from the vibration unit 11; and a detection processing device 20 for receiving vibration information related to the vibration of the inspection target 100 detected by the sensor 13 from the sensing device 10 and detecting the state change of the inspection target 100 based on the vibration information. The vibration unit 11 includes a coil 112, a spring 113, and a magnet 114b.

Abstract: A vibration actuator includes a movable body provided with one of a coil and a magnet that is disposed radially inward of the coil with a gap formed therebetween, a fixing body provided with the other of the coil and the magnet and a shaft portion, and an elastic support portion, the movable body vibrating in a vibration direction by means of cooperation between the coil supplied with power and the magnet. The movable body is provided with a through-hole into which the shaft portion is inserted with a gap formed between the through-hole and an outer peripheral surface of the shaft portion and the elastic support portion supports the movable body such that the movable body does not come into contact with the shaft portion at a time when the movable body does not vibrate and at a time when the movable body vibrates.

Abstract: A movable magnet is configured by alternately magnetizing an even number of magnetic poles at an outer periphery of a shaft part; a number of core magnetic poles as magnetic poles of a core body and a number of magnetic poles of the movable magnet are equal to each other; the core magnetic poles are disposed to face the movable magnet with an air gap therebetween on an outer peripheral side of the movable magnet in a direction orthogonal to the shaft part; a drive unit is provided with a magnet position holding part provided to face the movable magnet and magnetically attracts the movable magnet to a reference position; the core body is formed to surround an even number of the core magnetic poles; and a coil body is disposed at the core body adjacent to each of the even number of the core magnetic poles.

Abstract: An image projection apparatus includes a light irradiation device configured to irradiate a laser beam, an optical scan device configured to deflect the laser beam to make an optical scan, and project an image on a display region, an optical sensor arranged outside the display region, and including a first light receiving region and a second light receiving region that are arranged at different positions along a vertical scanning direction of the optical scan, and a deflection angle controller. The deflection angle controller corrects a deflection angle in the vertical scanning direction of the optical scan device, based on a number of times the laser beam is detected by the first light receiving region and a number of times the laser beam is detected by the second light receiving region.

Abstract: This actuator has a stationary body having either a coil or a magnet, a movable body having the other, that is, a magnet or a coil, and an elastic body that supports the movable body so as to be capable of moving with respect to the stationary body. The movable body moves reciprocally with respect to the stationary body in the vibration direction due to concerted movement of the magnet and the energized coil. The magnet can advance into and separate from the interior of the coil in the vibration direction. The elastic body is a plate-shaped elastic body one end of which is secured to a stationary unit, the other end of which is secured to the movable body, and which supports the movable body with a cantilever structure so as to be capable of oscillating reciprocally in the vibration direction.

Abstract: An optical scanning device includes a mirror that includes a mirror reflection surface, and torsion bars that support the corresponding sides of the mirror and cause the mirror to rotate. The torsion bars are formed of a silicon active layer whose surface is exposed.