Abstract: An auxiliary power supply unit includes an auxiliary power supply device and a downstream power supply line group connecting the auxiliary power supply device to motor units. The auxiliary power supply device includes: an auxiliary power supply provided on a power supply path; and a switching circuit configured to switch the connection state of the auxiliary power supply to the power supply path. The connection state of the auxiliary power supply includes a boost state in which the auxiliary power supply is connected in series with the external power supply. The downstream power supply line group includes branch first downstream drive lines and branch second downstream drive lines. Each of the upstream ends of the branch first downstream drive lines and the branch second downstream drive lines is connected to the power supply path at a position downstream of the auxiliary power supply.

Abstract: A positional and postural accuracy of stereo cameras 30 is maintained. A camera support structure (100) includes a support frame (130) that is mounted on a housing (110) of a head-mounted display 1 and supports stereo cameras (30), and at least one rubber member (40) that is interposed between the housing (110) and the support frame (130) and has at least a portion elastically deformable between the housing (110) and the support frame (130) upon deformation or displacement of the support frame (130).

Abstract: A head-mounted display includes a main body in which a display is built; a wearing band extending from the main body to a rear side and having a shape enclosing a head of a user as a whole; a right-side extending section configured to make up a right-side part of the wearing band; a left-side extending section configured to make up a left-side part of the wearing band; a movable section configured to make up a part of a rear side of the wearing band, link a rear section of the right-side extending section with a rear section of the left-side extending section, and be movable relative to the right-side extending section and the left-side extending section in a retracting direction in which the length of the wearing band is decreased and in an extending direction in which the length of the wearing band is increased, a first manipulating member operable by a user and rotatably provided on the movable section with an axis section that extends in a front-rear direction; where a vertical width of the first manipula

Abstract: A head-mounted display includes a main body having a housing defining at least a portion of an exterior of the head mounted display; a built-in display disposed in the housing; a wearing band extending from the main body to a rear side and having a shape enclosing a head of a user as a whole; a right-side extending section configured to make up a right-side part of the wearing band; a left-side extending section configured to make up a left-side part of the wearing band; and a frame which is separate from the housing and constitutes at least a portion of a rear part of the main body, where the frame has left and right openings for receiving left and right lenses, respectively, and a recessed section for accommodating a user's nose when the head-mounted display is worn.

Abstract: A positional and postural accuracy of stereo cameras 30 is maintained. A camera support structure (100) includes a support frame (130) that is mounted on a housing (110) of a head-mounted display 1 and supports stereo cameras (30), and at least one rubber member (40) that is interposed between the housing (110) and the support frame (130) and has at least a portion elastically deformable between the housing (110) and the support frame (130) upon deformation or displacement of the support frame (130).

Abstract: There is provided a Fresnel lens capable of restraining flare from occurring. Each of a plurality of prisms (11) of a Fresnel lens (10) has an effective surface (Es) and a noneffective surface (Ns). In each of the prisms (11), the noneffective surface (Ns) has a first noneffective surface (Ns1) and a second noneffective surface (Ns2) that is closer to a crest (11c) of the prism (11) than the first noneffective surface (Ns1). The first noneffective surface is inclined to an optical axis (Z1).

Abstract: A head-mounted display includes a main body having a housing defining at least a portion of an exterior of the head mounted display; a built-in display disposed in the housing; a wearing band extending from the main body to a rear side and having a shape enclosing a head of a user as a whole; a right-side extending section configured to make up a right-side part of the wearing band; a left-side extending section configured to make up a left-side part of the wearing band; and a frame which is separate from the housing and constitutes at least a portion of a rear part of the main body, where the frame has left and right openings for receiving left and right lenses, respectively, and a recessed section for accommodating a user's nose when the head-mounted display is worn.

Abstract: An auxiliary power supply device includes an auxiliary power supply; and an auxiliary power supply control unit configured to switch a mode of the auxiliary power supply to an output mode or a non-output mode when electric power is output from a main power supply to a drive motor. The auxiliary power supply control unit is configured to switch the mode to the non-output mode when a required power value required by the drive motor is equal to or smaller than a predetermined power value and to switch the mode to the output mode when the required power value is larger than the predetermined power value, the predetermined power value being set to a value smaller than outputtable electric power that is electric power outputtable from the main power supply.

Abstract: A head-mounted display configured to enhance the ease of wearing work and the stability of wearing is provided. A wearing band has an extending section and a movable section that is movable relative to the extending section in the length direction of the wearing band.

Abstract: An electric power source device includes an auxiliary electric power source for a main electric power source that supplies electric power to electric power supply targets, including an electric circuit of a control system for controlling a specific control target and an electric circuit of a power system that requires larger electric power than the electric circuit of the control system; and a selection circuit configured to supply the electric power from one electric power source having a higher voltage, out of the main electric power source and the auxiliary electric power source, to at least the electric circuit of the control system among the electric power supply targets.

Abstract: A power supply circuit includes a first P-channel MOSFET and a first voltage application circuit. The first P-channel MOSFET is provided between an on-board power supply and a vehicular apparatus that is a power supply target, and is configured to switch a power-ON state in which electric power is supplied to the vehicular apparatus and a power-OFF state in which the supply of the electric power is interrupted. The first voltage application circuit is configured to apply a voltage having a potential lower than a potential of the on-board power supply to a gate terminal such that a state of the first P-channel MOSFET is switched to the power-ON state, and apply a voltage having a potential equal to the potential of the on-board power supply to the gate terminal such that the state of the first P-channel MOSFET is switched to the power-OFF state.

Abstract: An auxiliary power source device includes a main power source-side path, an auxiliary power source-side path, a power source control circuit, an analog determination circuit that is provided separately from the power source control circuit, and a power source switching circuit. The power source control circuit controls switching between a conduction state and an interruption state on the main power source-side path and the auxiliary power source-side path. The analog determination circuit determines an occurrence of abnormality in the main power source and generates a switching signal when the occurrence of the abnormality in the main power source is determined. The power source switching circuit switches a power source for supplying power to a power supply target, from the main power source to the auxiliary power source.

Abstract: An auxiliary power supply device includes a parasitic diode forming a parallel circuit together with a second switching element and connected in a forward direction to a main power supply, and a parasitic diode forming a parallel circuit together with a fourth switching element and connected in a reverse direction to an auxiliary power supply. When a state parameter indicates that a reaction force that interferes with operation of an assist motor is applied, an electronic control unit turns ON a first switching element, turns OFF the second switching element, turns ON a third switching element, and turns OFF the fourth switching element. A regenerative current from the assist motor flows to the auxiliary power supply via an inverter, the third switching element, and the parasitic diode.

Abstract: An auxiliary power source device includes a main power source-side path, an auxiliary power source-side path, a power source control circuit, an analog determination circuit that is provided separately from the power source control circuit, and a power source switching circuit. The power source control circuit controls switching between a conduction state and an interruption state on the main power source-side path and the auxiliary power source-side path. The analog determination circuit determines an occurrence of abnormality in the main power source and generates a switching signal when the occurrence of the abnormality in the main power source is determined. The power source switching circuit switchs a power source for supplying power to a power supply target, from the main power source to the auxiliary power source.

Abstract: An auxiliary power supply device includes an auxiliary power supply; and an auxiliary power supply control unit configured to switch a mode of the auxiliary power supply to an output mode or a non-output mode when electric power is output from a main power supply to a drive motor. The auxiliary power supply control unit is configured to switch the mode to the non-output mode when a required power value required by the drive motor is equal to or smaller than a predetermined power value and to switch the mode to the output mode when the required power value is larger than the predetermined power value, the predetermined power value being set to a value smaller than outputtable electric power that is electric power outputtable from the main power supply.

Abstract: A head-mounted display configured to enhance the ease of wearing work and the stability of wearing is provided. A wearing band has an extending section and a movable section that is movable relative to the extending section in the length direction of the wearing band.

Abstract: An electric power supply circuit includes an auxiliary electric power supply; a first MOSFET provided on an auxiliary electric power supply-side feed path, the first MOSFET including a parasitic diode configured to restrict conduction of electric current in a direction from the auxiliary electric power supply toward the feed target; a second MOSFET provided on the auxiliary electric power supply-side feed path, the second MOSFET including a parasitic diode configured to restrict conduction of the electric current in a direction from the feed target toward the auxiliary electric power supply; and a third MOSFET provided on at least one of the auxiliary electric power supply-side feed path and the main electric power supply-side feed path, the third MOSFET including a parasitic diode configured to restrict conduction of the electric current in a direction from the main electric power supply toward the auxiliary electric power supply.

Abstract: A power source device includes a switching circuit configured to switch the power supply mode between a first power supply mode, in which power is supplied to a drive circuit for an electric motor by only a main power source, and a second power supply mode, in which power is supplied to the drive circuit utilizing both the main power source and an auxiliary power source. A control device includes: a determination unit that determines whether the operation state of the electric motor is a regeneration state or a power-running state; and a unit configured to limit power to be supplied to the drive circuit when the power supply mode is the second power supply mode and it is determined by the determination unit that the operation state of the electric motor is the regeneration state.

Abstract: A power supply circuit includes a first P-channel MOSFET and a first voltage application circuit. The first P-channel MOSFET is provided between an on-board power supply and a vehicular apparatus that is a power supply target, and is configured to switch a power-ON state in which electric power is supplied to the vehicular apparatus and a power-OFF state in which the supply of the electric power is interrupted. The first voltage application circuit is configured to apply a voltage having a potential lower than a potential of the on-board power supply to a gate terminal such that a state of the first P-channel MOSFET is switched to the power-ON state, and apply a voltage having a potential equal to the potential of the on-board power supply to the gate terminal such that the state of the first P-channel MOSFET is switched to the power-OFF state.

Abstract: Provided is a flame retardant composition containing at least one phosphate ester represented by general formula (1), wherein the total content of phosphate esters in which n=1, 2, 3, 4, or 5 among the phosphate esters is 99-100 mass %, and the content of phosphate esters represented by general formula (1) in which n=1 is at least 60 mass % and less than 70 mass % with respect to the total amount of the phosphate esters (in formula (1), R1 and R2 each independently represent a hydrogen atom or a methyl group, and n represents a number of 1, 2, 3, 4, 5, 6 or 7).