Abstract: A propagation optical system includes: a first optical system; an intermediate optical element; and a second optical system. The first optical system, the intermediate optical element, and the second optical system being sequentially arranged in a direction from the image display element toward the light guide member along an optical axis. The intermediate optical element has a non-rotationally symmetric curved surface, of which shape is non-rotationally symmetric about the optical axis. A cross-sectional shape, of the non-rotationally symmetric curved surface, in a first plane including the optical axis is non-arc shape. The first plane is a plane in which the non-rotationally symmetric surface has a strongest positive power among planes including the optical axis. The propagation optical system is configured to form, between the first optical system and the second optical system, an intermediate image corresponding to an image displayed on the image display element.

Abstract: [Object] To provide a light-emitting element array having a wiring structure that enables an increase in response speed of a light-emitting element. [Solving Means] A light-emitting element array according to the present technology includes: a light-emitting element group; a first wire; and a second wire. The light-emitting element group forms a light-emitting element surface on which a plurality of light-emitting elements is arranged in a planar shape and includes first light-emitting element columns, first light-emitting elements included in the plurality of light-emitting elements being arranged along a first direction parallel to the light-emitting element surface in each of the first light-emitting element columns. The first wire extends along the first direction and is electrically connected to each of the first light-emitting elements in each of the first light-emitting element columns, a current flowing through the first wire in a first orientation parallel to the first direction.

Abstract: A laser device, to be used in a laser processing system for performing laser processing by irradiating a workpiece with laser light in a gas containing oxygen includes a solid-state oscillator including a solid-state laser device configured to output laser light having a pulse width in a range of 100 ps to 1 ns both inclusive and having a center wavelength within an oscillation wavelength range of an ArF excimer laser device and outside absorption lines of oxygen, an ArF excimer amplifier configured to amplify the laser light output from the solid-state oscillator, and a first optical pulse stretcher configured to output laser light that is burst-pulsed by dividing the laser light amplified by the ArF excimer amplifier into a plurality of pulses as the laser light being caused to circulate through a delay optical path thereof.

Abstract: The object of the present invention is to provide a stable isotope concentration method that reduces equipment cost and power without prolonging the start-up time and enables efficient concentration, and the present invention provides a stable isotope concentration method using multiple cascaded distillation columns (1st column to mth column; m is an integer of 2 or more), wherein the method includes a step in which one of gas and liquid is supplied from a position in the vicinity of the bottom of a (n?1)th column to a position in the vicinity of the top of an nth column (1<n?m), and the other of liquid and gas is returned from a position in the vicinity of the top of the nth column to a position in the vicinity of the bottom of the (n?1)th column; and wherein in each distillation column, when a flow rate of an ascending gas in the column is a first flow rate and a flow rate of the gas or the liquid supplied from a previous column or a next column is a second flow rate, the second flow rate is 4% by volume

Abstract: To provide a lead sulfate film removing apparatus that has low power consumption and does not damage an electrode of a lead-acid battery. A lead sulfate film removing apparatus for removing a lead sulfate film generated on an electrode of a lead-acid battery includes a generation unit that generates a removal signal of the lead sulfate film having a peak value of 550 mA to 750 mA, a pulse width of 5 nsec to 100 nsec, and a frequency of 5 kHz to 50 kHz, based on a signal extracted from the lead-acid battery, and a supply unit that supplies the removal signal generated by the generation unit to the electrode of the lead-acid battery.

Abstract: Provided is a work machine maintenance management system capable of predicting replacement timing of a component of a work machine early. The work machine maintenance management system of this disclosure includes a maintenance management DB server 110 that accumulates maintenance management information of a plurality of work machines and a maintenance management control device 120 that predicts replacement timing of each component of each of the work machines based on the maintenance management information. The maintenance management information includes an actual durable period from start of use to replacement each component of each work machine. The maintenance management control device 120 includes a replacement-factor determining section 121, a service life model creator 122, a failure model creator 123, and a replacement time predictor 126.

Abstract: A DC-DC converter includes a protection function for handling a reverse connection state, and a protection function for handling a predetermined abnormality other than a reverse connection state, while reducing conduction loss. The DC-DC converter includes a first protection circuit unit, and a switching element on a first conductive path of a high-voltage side switches to an OFF state upon a predetermined abnormal state being detected to prevent a current from flowing into a voltage conversion unit. Furthermore, a reverse connection protection circuit unit and a switching element, on a third conductive path between the voltage conversion unit and a reference conductive path, is configured to switch to an off state if at least a low-voltage side power supply unit is in a reverse connection state, preventing a current from the reference conductive path. Thus, a current is prevented from flowing toward a power supply that is improperly connected.

Abstract: The present invention realizes a DC-DC converter that is provided with a reverse flow protection function, while reducing conduction loss. A DC-DC converter includes: a voltage conversion unit that steps down a voltage applied to a first conductive path and output the resulting voltage to a second conductive path; a reverse flow state detection unit that detects a reverse flow state of a current flowing through the second conductive path; and a reverse protection control unit that performs a protecting operation when a current flows in a reverse direction. A switching element is provided on a third conductive path that is located between a voltage conversion unit and a reference conductive path, and the reverse protection control unit operates to switch the switching element to an OFF state upon a reverse flow state being detected.

Abstract: Operating information (a pilot pressure, a pump pressure, a hydraulic oil temperature, an engine rotational speed, an hour meter and the like) of a hydraulic excavator and use environment information (operator information) of the hydraulic excavator are transmitted to a center server together with body information (for example, a model, a type, a type number, an identification number and the like) from the hydraulic excavator. For example, when a hydraulic hose as a replaceable component of the hydraulic excavator is replaced, the replaceable component information (a replaceable component name and a replacement date) is transmitted to the center server from a computer for maintenance. The center server predicts a replacement time of the replaceable component (hydraulic hose) using the use environment information of the hydraulic excavator in addition to the operating information and the replaceable component information of the hydraulic excavator.

Abstract: The present invention realizes a DC-DC converter that is provided with a reverse flow protection function, while reducing conduction loss. A DC-DC converter includes: a voltage conversion unit that steps down a voltage applied to a first conductive path and output the resulting voltage to a second conductive path; a reverse flow state detection unit that detects a reverse flow state of a current flowing through the second conductive path; and a reverse protection control unit that performs a protecting operation when a current flows in a reverse direction. A switching element is provided on a third conductive path that is located between a voltage conversion unit and a reference conductive path, and the reverse protection control unit operates to switch the switching element to an OFF state upon a reverse flow state being detected.

Abstract: A DC-DC converter includes a protection function for handling a reverse connection state, and a protection function for handling a predetermined abnormality other than a reverse connection state, while reducing conduction loss. The DC-DC converter includes a first protection circuit unit, and a switching element on a first conductive path of a high-voltage side switches to an OFF state upon a predetermined abnormal state being detected to prevent a current from flowing into a voltage conversion unit. Furthermore, a reverse connection protection circuit unit and a switching element, on a third conductive path between the voltage conversion unit and a reference conductive path, is configured to switch to an off state if at least a low-voltage side power supply unit is in a reverse connection state, preventing a current from the reference conductive path. Thus, a current is prevented from flowing toward a power supply that is improperly connected.

Abstract: Operating information (a pilot pressure, a pump pressure, a hydraulic oil temperature, an engine rotational speed, an hour meter and the like) of a hydraulic excavator and use environment information (operator information) of the hydraulic excavator are transmitted to a center server together with body information (for example, a model, a type, a type number, an identification number and the like) from the hydraulic excavator. For example, when a hydraulic hose as a replaceable component of the hydraulic excavator is replaced, the replaceable component information (a replaceable component name and a replacement date) is transmitted to the center server from a computer for maintenance. The center server predicts a replacement time of the replaceable component (hydraulic hose) using the use environment information of the hydraulic excavator in addition to the operating information and the replaceable component information of the hydraulic excavator.

Abstract: The invention provides an electronic control device having a high-grade heat sink that: does not require tight control at the time of manufacturing; does not restrict the range of electronic components that can be used; is structurally simple; can be produced at a higher production rate; and is cost-effective. In this device, when a circuit board 14 having an electronic component 13 thereon is placed in a non-metal (resin) housing having: a housing base 11 integrally comprising via a partition wall 11a a connector inserting section 18 used for electrical connection with an external mating connector (not illustrated); and a housing cover 12 attached to the housing base 11, part of the board 14 is inserted into an insertion hole provided in the partition wall 11a so that it is exposed inside the connector inserting section 16.

Abstract: Provided is a communication apparatus according to which the degree of balance between two electric wires on which a signal is sent can be increased. A communication apparatus transmits and receives a superposed signal via a control line and a ground line. In the communication apparatus, a common-mode noise filter removes common-mode noise from the superposed signal. A LPF extracts the charge control signal from the superposed signal from which the common-mode noise is removed, and outputs the extracted charge control signal to a charge control apparatus. The BPF extracts a communication signal from the superposed signal from which the common-mode noise is removed, and outputs the extracted communication signal to a communication unit via a protective circuit and a conversion circuit.

Abstract: Contact resistance between a SiC substrate and an electrode is decreased. When a silicide layer is analyzed by Auger Electron Spectroscopy (AES) sputter in a direction from a titanium layer side to a SiC substrate side, sputtering time corresponding to a depth profile of the silicide layer is defined as ts. In this case, a depth profile of the silicide layer from the titanium layer side in a range of sputtering time from 0.4ts to ts contains a region where titanium atoms determined by the AES sputter accounts for 5 at % or more of all atoms determined by the AES sputter.

Abstract: The invention provides an electronic control device having a high-grade heat sink that: does not require tight control at the time of manufacturing; does not restrict the range of electronic components that can be used; is structurally simple; can be produced at a higher production rate; and is cost-effective. In this device, when a circuit board 14 having an electronic component 13 thereon is placed in a non-metal (resin) housing having: a housing base 11 integrally comprising via a partition wall 11a a connector inserting section 18 used for electrical connection with an external mating connector (not illustrated); and a housing cover 12 attached to the housing base 11, part of the board 14 is inserted into an insertion hole provided in the partition wall 11a so that it is exposed inside the connector inserting section 16.

Abstract: A lens machining apparatus is provided that can execute everything required in machining eyeglass lenses, from measurement to various kinds of machining, and still ensures high-precision machining. The apparatus includes a lens holding unit 12 which holds a lens 1 and causes the same to turn, a cutter 131 which cuts (edges) the circumferential surface of the lens in a prescribed cross-sectional shape, an end mill 141 which machines a groove in the circumferential surface of the lens whose circumferential surface has been cut (edged) and chamfers edges at the lens circumferential surface, and a lens measurement unit 15 which measures the shape and the position of the lens held by the lens holding unit.

Abstract: To provide a calibration jig which can perform three-dimensional calibration of measurement errors in a spectacle frame shape measuring apparatus. The calibration jig is used for calibrating measurement errors of the spectacle frame shape measuring apparatus for measuring a shape of a spectacle frame, etc. A trace groove traced by a measuring probe of the spectacle frame shape measuring apparatus is a frame groove formed in an inner circumference of rims of the spectacle frame and provided for engaging with the bevel of a spectacle lens. The rims are secured to a frame body having rigidity higher than that of the rim. The frame groove has a displacement r in the radial direction, a displacement ? in the rotational direction, and a displacement z in the height direction.

Abstract: A vapor deposition apparatus for an optical lens includes a lens holding body including a plurality of lens holes formed to be slightly larger than the optical lens. This apparatus also includes a holding means for pressing the outer peripheral surface of the optical lens in each lens hole of the lens holding body. This apparatus moreover includes lens receptacles which are provided in portions opposed to the holding means on the inner peripheral surface defining each lens hole, and receive the outer peripheral surface of the optical lens. A film can be formed on the entire optical surface of the optical lens with little possibility that this optical surface will be scratched.

Abstract: An image processing apparatus according to an aspect of the invention includes a first storage unit, a second storage unit, a control unit, and a construction unit. A program of at least one module including a buffer module among modules of an image processing unit is stored in the first storage unit. An image processing program and a shared library can be additionally stored in the second storage unit. The image processing program is used to perform image processing and a program of a module generation unit is registered in the shared library. The control unit instructs at least one module in the image processing unit to perform image processing during construction of the image processing unit. The construction unit constructs the image processing unit.